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Rühling S, Dittmann J, Müller T, Husseini ME, Bodden J, Hernandez Petzsche MR, Löffler MT, Sollmann N, Baum T, Seifert-Klauss V, Wostrack M, Zimmer C, Kirschke JS. Sex differences and age-related changes in vertebral body volume and volumetric bone mineral density at the thoracolumbar spine using opportunistic QCT. Front Endocrinol (Lausanne) 2024; 15:1352048. [PMID: 38440788 PMCID: PMC10911120 DOI: 10.3389/fendo.2024.1352048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 01/22/2024] [Indexed: 03/06/2024] Open
Abstract
Objectives To quantitatively investigate the age- and sex-related longitudinal changes in trabecular volumetric bone mineral density (vBMD) and vertebral body volume at the thoracolumbar spine in adults. Methods We retrospectively included 168 adults (mean age 58.7 ± 9.8 years, 51 women) who received ≥7 MDCT scans over a period of ≥6.5 years (mean follow-up 9.0 ± 2.1 years) for clinical reasons. Level-wise vBMD and vertebral body volume were extracted from 22720 thoracolumbar vertebrae using a convolutional neural network (CNN)-based framework with asynchronous calibration and correction of the contrast media phase. Human readers conducted semiquantitative assessment of fracture status and bony degenerations. Results In the 40-60 years age group, women had a significantly higher trabecular vBMD than men at all thoracolumbar levels (p<0.05 to p<0.001). Conversely, men, on average, had larger vertebrae with lower vBMD. This sex difference in vBMD did not persist in the 60-80 years age group. While the lumbar (T12-L5) vBMD slopes in women only showed a non-significant trend of accelerated decline with age, vertebrae T1-11 displayed a distinct pattern, with women demonstrating a significantly accelerated decline compared to men (p<0.01 to p<0.0001). Between baseline and last follow-up examinations, the vertebral body volume slightly increased in women (T1-12: 1.1 ± 1.0 cm3; L1-5: 1.0 ± 1.4 cm3) and men (T1-12: 1.2 ± 1.3 cm3; L1-5: 1.5 ± 1.6 cm3). After excluding vertebrae with bony degenerations, the residual increase was only small in women (T1-12: 0.6 ± 0.6 cm3; L1-5: 0.7 ± 0.7 cm3) and men (T1-12: 0.7 ± 0.6 cm3; L1-5: 1.2 ± 0.8 cm3). In non-degenerated vertebrae, the mean change in volume was <5% of the respective vertebral body volumes. Conclusion Sex differences in thoracolumbar vBMD were apparent before menopause, and disappeared after menopause, likely attributable to an accelerated and more profound vBMD decline in women at the thoracic spine. In patients without advanced spine degeneration, the overall volumetric changes in the vertebral body appeared subtle.
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Affiliation(s)
- Sebastian Rühling
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jonas Dittmann
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Tobias Müller
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Malek El Husseini
- Department of Informatics, TUM School of Computation, Information and Technology, Technical University of Munich, Munich, Germany
| | - Jannis Bodden
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Moritz R Hernandez Petzsche
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Maximilian T Löffler
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Freiburg im Breisgau, Germany
| | - Nico Sollmann
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- TUM-Neuroimaging Center, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Diagnostic and Interventional Radiology, University Hospital Ulm, Ulm, Germany
| | - Thomas Baum
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Vanadin Seifert-Klauss
- Department of Gynaecology, Interdisciplinary Osteoporosis Center, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Claus Zimmer
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jan S Kirschke
- Department of Diagnostic and Interventional Neuroradiology, TUM School of Medicine and Health, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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Drexler R, Sauvigny T, Pantel TF, Ricklefs FL, Catapano JS, Wanebo JE, Lawton MT, Sanchin A, Hecht N, Vajkoczy P, Raygor K, Tonetti D, Abla A, El Naamani K, Tjoumakaris SI, Jabbour P, Jankowitz BT, Salem MM, Burkhardt JK, Wagner A, Wostrack M, Gempt J, Meyer B, Gaub M, Mascitelli JR, Dodier P, Bavinzski G, Roessler K, Stroh N, Gmeiner M, Gruber A, Figueiredo EG, da Silva Coelho ACS, Bervitskiy AV, Anisimov ED, Rzaev JA, Krenzlin H, Keric N, Ringel F, Park D, Kim MC, Marcati E, Cenzato M, Westphal M, Dührsen L. Global Outcomes for Microsurgical Clipping of Unruptured Intracranial Aneurysms: A Benchmark Analysis of 2245 Cases. Neurosurgery 2024; 94:369-378. [PMID: 37732745 PMCID: PMC10766286 DOI: 10.1227/neu.0000000000002689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/27/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Benchmarks represent the best possible outcome and help to improve outcomes for surgical procedures. However, global thresholds mirroring an optimal and reachable outcome for microsurgical clipping of unruptured intracranial aneurysms (UIA) are not available. This study aimed to define standardized outcome benchmarks in patients who underwent clipping of UIA. METHODS A total of 2245 microsurgically treated UIA from 15 centers were analyzed. Patients were categorized into low- ("benchmark") and high-risk ("nonbenchmark") patients based on known factors affecting outcome. The benchmark was defined as the 75th percentile of all centers' median scores for a given outcome. Benchmark outcomes included intraoperative (eg, duration of surgery, blood transfusion), postoperative (eg, reoperation, neurological status), and aneurysm-related factors (eg, aneurysm occlusion). Benchmark cutoffs for aneurysms of the anterior communicating/anterior cerebral artery, middle cerebral artery, and posterior communicating artery were determined separately. RESULTS Of the 2245 cases, 852 (37.9%) patients formed the benchmark cohort. Most operations were performed for middle cerebral artery aneurysms (53.6%), followed by anterior communicating and anterior cerebral artery aneurysms (25.2%). Based on the results of the benchmark cohort, the following benchmark cutoffs were established: favorable neurological outcome (modified Rankin scale ≤2) ≥95.9%, postoperative complication rate ≤20.7%, length of postoperative stay ≤7.7 days, asymptomatic stroke ≤3.6%, surgical site infection ≤2.7%, cerebral vasospasm ≤2.5%, new motor deficit ≤5.9%, aneurysm closure rate ≥97.1%, and at 1-year follow-up: aneurysm closure rate ≥98.0%. At 24 months, benchmark patients had a better score on the modified Rankin scale than nonbenchmark patients. CONCLUSION This study presents internationally applicable benchmarks for clinically relevant outcomes after microsurgical clipping of UIA. These benchmark cutoffs can serve as reference values for other centers, patient registries, and for comparing the benefit of other interventions or novel surgical techniques.
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Affiliation(s)
- Richard Drexler
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas Sauvigny
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias F. Pantel
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Franz L. Ricklefs
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Joshua S. Catapano
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - John E. Wanebo
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Michael T. Lawton
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Aminaa Sanchin
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Nils Hecht
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Peter Vajkoczy
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Kunal Raygor
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Daniel Tonetti
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Adib Abla
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Kareem El Naamani
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Stavropoula I. Tjoumakaris
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Pascal Jabbour
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Brian T. Jankowitz
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Pennsylvania Medicine, Philadelphia, Pennsylvania, USA
| | - Mohamed M. Salem
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Pennsylvania Medicine, Philadelphia, Pennsylvania, USA
| | - Jan-Karl Burkhardt
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Pennsylvania Medicine, Philadelphia, Pennsylvania, USA
| | - Arthur Wagner
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Michael Gaub
- Department of Neurosurgery, University of Texas Health and Science Center at San Antonio, San Antonio, Texas, USA
| | - Justin R. Mascitelli
- Department of Neurosurgery, University of Texas Health and Science Center at San Antonio, San Antonio, Texas, USA
| | - Philippe Dodier
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Gerhard Bavinzski
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Karl Roessler
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Nico Stroh
- Department of Neurosurgery, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Matthias Gmeiner
- Department of Neurosurgery, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Andreas Gruber
- Department of Neurosurgery, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Eberval G. Figueiredo
- Division of Neurological Surgery, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | | | - Harald Krenzlin
- Department of Neurosurgery, University Hospital Mainz, Mainz, Germany
| | - Naureen Keric
- Department of Neurosurgery, University Hospital Mainz, Mainz, Germany
| | - Florian Ringel
- Department of Neurosurgery, University Hospital Mainz, Mainz, Germany
| | - Dougho Park
- Department of Neurosurgery, Pohang Stroke and Spine Hospital, Pohang, Korea
| | - Mun-Chul Kim
- Department of Neurosurgery, Pohang Stroke and Spine Hospital, Pohang, Korea
| | - Eleonora Marcati
- Department of Neurosurgery, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Marco Cenzato
- Department of Neurosurgery, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Manfred Westphal
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lasse Dührsen
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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3
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Sauvigny J, Drexler R, Pantel TF, Ricklefs FL, Catapano JS, Wanebo JE, Lawton MT, Sanchin A, Hecht N, Vajkoczy P, Raygor K, Tonetti D, Abla A, El Naamani K, Tjoumakaris SI, Jabbour P, Jankowitz BT, Salem MM, Burkhardt JK, Wagner A, Wostrack M, Gempt J, Meyer B, Gaub M, Mascitelli JR, Dodier P, Bavinzski G, Roessler K, Stroh N, Gmeiner M, Gruber A, Figueiredo EG, Coelho ACSDS, Bervitskiy AV, Anisimov ED, Rzaev JA, Krenzlin H, Keric N, Ringel F, Park D, Kim MC, Marcati E, Cenzato M, Krause L, Westphal M, Dührsen L, Sauvigny T. Microsurgical Clipping of Unruptured Anterior Circulation Aneurysms-A Global Multicenter Investigation of Perioperative Outcomes. Neurosurgery 2024:00006123-990000000-01023. [PMID: 38240568 DOI: 10.1227/neu.0000000000002829] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/13/2023] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Microsurgical aneurysm repair by clipping continues to be highly important despite increasing endovascular treatment options, especially because of inferior occlusion rates. This study aimed to present current global microsurgical treatment practices and to identify risk factors for complications and neurological deterioration after clipping of unruptured anterior circulation aneurysms. METHODS Fifteen centers from 4 continents participated in this retrospective cohort study. Consecutive patients who underwent elective microsurgical clipping of untreated unruptured intracranial aneurysm between January 2016 and December 2020 were included. Posterior circulation aneurysms were excluded. Outcome parameters were postsurgical complications and neurological deterioration (defined as decline on the modified Rankin Scale) at discharge and during follow-up. Multivariate regression analyses were performed adjusting for all described patient characteristics. RESULTS Among a total of 2192 patients with anterior circulation aneurysm, complete occlusion of the treated aneurysm was achieved in 2089 (95.3%) patients at discharge. The occlusion rate remained stable (94.7%) during follow-up. Regression analysis identified hypertension (P < .02), aneurysm diameter (P < .001), neck diameter (P < .05), calcification (P < .01), and morphology (P = .002) as preexisting risk factors for postsurgical complications and neurological deterioration at discharge. Furthermore, intraoperative aneurysm rupture (odds ratio 2.863 [CI 1.606-5.104]; P < .01) and simultaneous clipping of more than 1 aneurysm (odds ratio 1.738 [CI 1.186-2.545]; P < .01) were shown to be associated with an increased risk of postsurgical complications. Yet, none of the surgical-related parameters had an impact on neurological deterioration. Analyzing volume-outcome relationship revealed comparable complication rates (P = .61) among all 15 participating centers. CONCLUSION Our international, multicenter analysis presents current microsurgical treatment practices in patients with anterior circulation aneurysms and identifies preexisting and surgery-related risk factors for postoperative complications and neurological deterioration. These findings may assist in decision-making for the optimal therapeutic regimen of unruptured anterior circulation aneurysms.
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Affiliation(s)
- Jennifer Sauvigny
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Richard Drexler
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias F Pantel
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Franz L Ricklefs
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Joshua S Catapano
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - John E Wanebo
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Michael T Lawton
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | - Aminaa Sanchin
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Nils Hecht
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Peter Vajkoczy
- Department of Neurosurgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Kunal Raygor
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Daniel Tonetti
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Adib Abla
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Kareem El Naamani
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Stavropoula I Tjoumakaris
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Pascal Jabbour
- Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Brian T Jankowitz
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Mohamed M Salem
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Jan-Karl Burkhardt
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA
| | - Arthur Wagner
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Michael Gaub
- Department of Neurosurgery, University of Texas Health and Science Center at San Antonio, San Antonio, Texas, USA
| | - Justin R Mascitelli
- Department of Neurosurgery, University of Texas Health and Science Center at San Antonio, San Antonio, Texas, USA
| | - Philippe Dodier
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Gerhard Bavinzski
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Karl Roessler
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Nico Stroh
- Department of Neurosurgery, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Matthias Gmeiner
- Department of Neurosurgery, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Andreas Gruber
- Department of Neurosurgery, Kepler University Hospital, Johannes Kepler University, Linz, Austria
| | - Eberval G Figueiredo
- Division of Neurological Surgery, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | | | - Harald Krenzlin
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - Naureen Keric
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - Florian Ringel
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - Dougho Park
- Department of Neurosurgery, Pohang Stroke and Spine Hospital, Pohang, Korea
| | - Mun-Chul Kim
- Department of Neurosurgery, Pohang Stroke and Spine Hospital, Pohang, Korea
| | - Eleonora Marcati
- Department of Neurosurgery, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Marco Cenzato
- Department of Neurosurgery, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Linda Krause
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Manfred Westphal
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lasse Dührsen
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas Sauvigny
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Schwendner M, Ille S, Wostrack M, Meyer B. Evaluating a cutting-edge augmented reality-supported navigation system for spinal instrumentation. Eur Spine J 2024; 33:282-288. [PMID: 37962688 DOI: 10.1007/s00586-023-08011-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/27/2023] [Accepted: 10/16/2023] [Indexed: 11/15/2023]
Abstract
OBJECTIVE Dorsal instrumentation using pedicle screws is a standard treatment for multiple spinal pathologies, such as trauma, infection, or degenerative indications. Intraoperative three-dimensional (3D) imaging and navigated pedicle screw placement are used at multiple centers. For the present study, we evaluated a new navigation system enabling augmented reality (AR)-supported pedicle screw placement while integrating navigation cameras into the reference array and drill guide. The present study aimed to evaluate its clinical application regarding safety, efficacy, and accuracy. METHODS A total of 20 patients were operated on between 06/2021 and 01/2022 using the new technique for intraoperative navigation. Intraoperative data with a focus on accuracy and patient safety, including patient outcome, were analyzed. The accuracy of pedicle screw placement was evaluated by intraoperative CT imaging. RESULTS A median of 8 (4-18) pedicle screws were placed in each case. Percutaneous instrumentation was performed in 14 patients (70%). The duration of pedicle screw placement (duration scan-scan) was 56 ± 26 (30-107) min. Intraoperative screw revision was necessary for 3 of 180 pedicle screws (1.7%). Intraoperatively, no major complications occurred-one case of delay due to software issues and one case of difficult screw placement were reported. CONCLUSION The current study's results could confirm the use of the present AR-supported system for navigated pedicle screw placement for dorsal instrumentation in clinical routine. It provides a reliable and safe tool for 3D imaging-based pedicle screw placement, only requires a minimal intraoperative setup, and provides new opportunities by integrating AR.
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Affiliation(s)
- Maximilian Schwendner
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
- TUM Neuroimaging Center, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Sebastian Ille
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
- TUM Neuroimaging Center, School of Medicine, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany.
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
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5
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Joerger AK, Albrecht C, Rothhammer V, Neuhaus K, Wagner A, Meyer B, Wostrack M. The Role of Gut and Oral Microbiota in the Formation and Rupture of Intracranial Aneurysms: A Literature Review. Int J Mol Sci 2023; 25:48. [PMID: 38203219 PMCID: PMC10779325 DOI: 10.3390/ijms25010048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
In recent years, there has been a growing interest in the role of the microbiome in cardiovascular and cerebrovascular diseases. Emerging research highlights the potential role of the microbiome in intracranial aneurysm (IA) formation and rupture, particularly in relation to inflammation. In this review, we aim to explore the existing literature regarding the influence of the gut and oral microbiome on IA formation and rupture. In the first section, we provide background information, elucidating the connection between inflammation and aneurysm formation and presenting potential mechanisms of gut-brain interaction. Additionally, we explain the methods for microbiome analysis. The second section reviews existing studies that investigate the relationship between the gut and oral microbiome and IAs. We conclude with a prospective overview, highlighting the extent to which the microbiome is already therapeutically utilized in other fields. Furthermore, we address the challenges associated with the context of IAs that still need to be overcome.
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Affiliation(s)
- Ann-Kathrin Joerger
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University, 81675 Munich, Germany; (A.-K.J.); (B.M.)
| | - Carolin Albrecht
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University, 81675 Munich, Germany; (A.-K.J.); (B.M.)
| | - Veit Rothhammer
- Department of Neurology, University Hospital Erlangen, Friedrich-Alexander University Erlangen Nuremberg, 91054 Erlangen, Germany;
| | - Klaus Neuhaus
- Core Facility Microbiom, ZIEL Institute for Food & Health, Technical University of Munich, 85354 Freising, Germany;
| | - Arthur Wagner
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University, 81675 Munich, Germany; (A.-K.J.); (B.M.)
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University, 81675 Munich, Germany; (A.-K.J.); (B.M.)
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University, 81675 Munich, Germany; (A.-K.J.); (B.M.)
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6
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Schwarting J, Trost D, Albrecht C, Jörger AK, Zimmer C, Wostrack M, Meyer B, Bodden J, Boeckh-Behrens T. Risk identification for the development of large-artery vasospasm after aneurysmatic subarachnoid hemorrhage - a multivariate, risk-, and location-adjusted prediction model. J Neurointerv Surg 2023:jnis-2023-020649. [PMID: 37914393 DOI: 10.1136/jnis-2023-020649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 10/19/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Vasospasm of the large cerebral arteries (CVS) after aneurysmatic subarachnoid hemorrhage (aSAH) reduces cerebral perfusion and causes delayed cerebral ischemia. Although endovascular spasmolysis shows convincing angiographic results, patients often do not improve in outcome. Delayed recognition of CVS contributes substantially to this effect. Therefore, this study aimed to confirm established and to identify unknown risk factors for CVS, which can be used for risk stratification. METHODS In this monocentric, retrospective cohort study of 853 patients with aSAH, we compared demographics, clinical, and radiographic parameters at the time of aneurysm occlusion between patients who developed CVS and those who did not. Significant cohort differences were included as predictors in a multivariate analysis to address confounding. Logistic regression models were used to determine odds ratios (ORs) for the presence of CVS for each predictor. RESULTS Of the 853 patients treated with aSAH, 304 (32%) developed CVS. In the univariable analysis, CVS was significantly associated with young age, female sex, aneurysm location, modified Fisher score, Barrow Neurological Institute (BNI) score, and surgical interventions. In the multivariable regression analysis, we identified BNI score (OR 1.33, 95% CI 1.11 to 1.58, p=0.002), decompressive craniectomy (OR 1.93, 95% CI 1.22 to 3.04, p=0.005), and aneurysm clipping (OR 2.22, 95% CI 1.50 to 3.29, p<0.001), as independent risk factors. CONCLUSIONS Young female patients with high BNI scores who undergo surgical interventions are more likely to develop CVS and should therefore be monitored most intensively after aneurysm occlusion.
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Affiliation(s)
- Julian Schwarting
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Radiology/Neuroradiology, BGU, Berufsgenossenschaftliche Unfallklinik, Murnau, Germany
- Institute for Stroke and Dementia Research (ISD), University Hospital, LMU Munich, Munich, Germany
| | - Dominik Trost
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Carolin Albrecht
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Ann-Kathrin Jörger
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Claus Zimmer
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jannis Bodden
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Tobias Boeckh-Behrens
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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Liang R, Schwendner M, Grziwotz M, Wiestler B, Wostrack M, Meyer B, Krieg SM, Ille S. Improving tractography in brainstem cavernoma patients by distortion correction. Brain Spine 2023; 3:102685. [PMID: 38021010 PMCID: PMC10668098 DOI: 10.1016/j.bas.2023.102685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/16/2023] [Accepted: 10/04/2023] [Indexed: 12/01/2023]
Abstract
Introduction The resection of brainstem cerebral cavernous malformations (CCM) harbors the risk of damaging the corticospinal tract (CST) and other major tracts. Hence, visualization of eloquent fiber tracts supports pre- and intraoperative planning. However, diffusion tensor imaging fiber tracking at brainstem level suffers from distortion due to field inhomogeneities and eddy currents by steep diffusion gradients. Research question This study aims to analyze the effect of distortion correction for CST tractography in brainstem CCM patients. Material and methods 25 patients who underwent resection of brainstem CCM were enrolled, 24 suffered from hemorrhage. We performed an anatomically based tractography of the CST with a mean minimal fractional anisotropy of 0.22 ± 0.04 before and after cranial distortion correction (CDC). Accuracy was measured by anatomical plausibility and aberrant fibers. Results CDC led to a more precise CST tractography, further approximating its assumed anatomical localization in all cases. CDC resulted in a significantly more ventral location of the CST of 1.5 ± 0.6 mm (6.1 ± 2.7 mm before CDC vs. 4.6 ± 2.1 mm after CDC; p < .0001) as measured by the distance to the basilar artery and of 1.7 ± 0.6 mm (8.9 ± 2.7 mm vs. 7.2 ± 2.1 mm; p < .0001) in relation to the clivus. Aberrant fibers were reduced by CDC in 44% of cases. We found a mean difference in CST volume of 0.6 ± 0.8 ccm. We could not detect motor deficits after resection of irregular fibers. Discussion and conclusion CDC effectively corrects tractography for distortion at brainstem level, especially in patients suffering from brainstem CCM, further approximating its actual anatomical localization.
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Affiliation(s)
- Raimunde Liang
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
| | - Maximilian Schwendner
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
| | - Marc Grziwotz
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
| | - Benedikt Wiestler
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, School of Medicine, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sandro M. Krieg
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
| | - Sebastian Ille
- Department of Neurosurgery, Klinikum Rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany
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Goloshchapova K, Goldberg M, Meyer B, Wostrack M, Butenschoen VM. Neurological Outcome and Respiratory Insufficiency in Intramedullary Tumors of the Upper Cervical Spine. Medicina (Kaunas) 2023; 59:1754. [PMID: 37893472 PMCID: PMC10608265 DOI: 10.3390/medicina59101754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: Intramedullary spinal cord tumors (IMSCT) are rare entities. A location in the upper cervical spine as a highly eloquent region carries the risk of postoperative neurological deficits, such as tetraparesis or respiratory dysfunction. Evidence for respiratory dysfunction is scarce. This study aimed to describe these highly eloquent tumors' early and late postoperative clinical course. Materials and Methods: This is a single-center retrospective cohort study. We included 35 patients with IMSCT at levels of the craniocervical junction to C4 who underwent surgical treatment between 2008 and 2022. The authors analyzed the patients' preoperative status, tumor- and surgery-specific characteristics, and follow-up functional status. Results: The study cohort included twenty-two patients with grade II ependymoma (62.9%), two low-grade astrocytomas (5.7%), two glioblastomas (5.7%), six hemangioblastomas (17.1%), two metastases (5.7%), and one patient with partially intramedullary schwannoma (2.9%). Gross total resection was achieved in 76% of patients. Early dorsal column-related symptoms (gait ataxia and sensory loss) and motor deterioration occurred in 64% and 44% of patients. At a follow-up of 3.27 ± 3.83 years, 43% and 33% of patients still exhibited postoperative sensory and motor deterioration, respectively. The median McCormick Scale grade was 2 in the preoperative and late postoperative periods, respectively. Only three patients (8.6%) developed respiratory dysfunction, of whom, two patients, both with malignant IMSCT, required prolonged invasive ventilation. Conclusions: More than 60% of the patients with IMSCT in the upper cervical cord developed new neurological deficits in the immediate postoperative period, and more than 40% are permanent. However, these deficits are not disabling in most cases since most patients maintain functional independence as observed by unchanged low McCormick scores. The rate of respiratory insufficiency is relatively low and seems to be influenced by the rapid neurological deterioration in high-grade tumors.
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Affiliation(s)
- Kateryna Goloshchapova
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, Germany (V.M.B.)
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Kerschbaumer J, Freyschlag CF, Petr O, Adage T, Breitenbach J J, Wessels L, Wolf S, Hecht N, Gempt J, Wostrack M, Gmeiner M, Gollwitzer M, Stefanits H, Bendszus M M, Gruber A, Meyer B, Vajkoczy P, Thomé C. A randomized, single ascending dose safety, tolerability and pharmacokinetics study of NicaPlant® in aneurysmal subarachnoid hemorrhage patients undergoing clipping. Brain Spine 2023; 3:102673. [PMID: 38021019 PMCID: PMC10668089 DOI: 10.1016/j.bas.2023.102673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 09/15/2023] [Accepted: 09/17/2023] [Indexed: 12/01/2023]
Abstract
Introduction Aneurysmal subarachnoid hemorrhage (aSAH) is associated with high morbidity and mortality. Post-hemorrhagic vasospasm with neurological deterioration is a major concern in this context. NicaPlant®, a modified release formulation of the calcium channel blocker nicardipine, has shown vasodilator efficacy preclinically and a similar formulation known as NPRI has shown anti-vasospasm activity in aSAH patients under compassionate use. Research question The study aimed to assess pharmacokinetics and pharmacodynamics of NicaPlant® pellets to prevent vasospasm after clip ligation in aSAH. Material and methods In this multicenter, controlled, randomized, dose escalation trial we assessed the safety and tolerability of NicaPlant®. aSAH patients treated by clipping were randomized to receive up to 13 NicaPlant® implants, similarly to the dose of NPRIs previous used, or standard of care treatment. Results Ten patients across four dose groups were treated with NicaPlant® (3-13 implants) while four patients received standard of care. 45 non-serious and 13 serious adverse events were reported, 4 non-serious adverse events and 5 serious adverse events assessed a probable or possible causal relationship to the investigational medical product. Across the NicaPlant® groups there was 1 case of moderate vasospasm, while in the standard of care group there were 2 cases of severe vasospasm. Discussion and conclusion The placement of NicaPlant® during clip ligation of a ruptured cerebral aneurysm raised no safety concern. The dose of 10 NicaPlant® implants was selected for further clinical studies.
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Affiliation(s)
| | | | - Ondra Petr
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | | | | | - Lars Wessels
- Department of Neurosurgery, Charité Berlin, Berlin, Germany
| | - Stefan Wolf
- Department of Neurosurgery, Charité Berlin, Berlin, Germany
| | - Nils Hecht
- Department of Neurosurgery, Charité Berlin, Berlin, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum Rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | - Matthias Gmeiner
- Department of Neurosurgery, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - Maria Gollwitzer
- Department of Neurosurgery, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - Harald Stefanits
- Department of Neurosurgery, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - Martin Bendszus M
- Department of Neuroradiology, University of Heidelberg, Heidelberg, Germany
| | - Andreas Gruber
- Department of Neurosurgery, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | | | - Claudius Thomé
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
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Janssen IK, Ryang YM, Wostrack M, Shiban E, Meyer B. Incidence and outcome of patients suffering from meningitis due to spondylodiscitis. Brain Spine 2023; 3:101781. [PMID: 38020984 PMCID: PMC10668068 DOI: 10.1016/j.bas.2023.101781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 05/23/2023] [Accepted: 07/10/2023] [Indexed: 12/01/2023]
Abstract
Introduction Meningitis is a rare but severe complication in patients with spondylodiscitis. Data about the incidence and clinical management are rare. Research question Aim of this study was to assess the incidence, clinical course and outcome of patients suffering from meningitis due to spondylodiscitis. Material and methods We performed a retrospective analysis of our prospective clinical database that included all patients suffering from spondylodiscitis between January 2010 and December 2019 were included. We assessed clinical findings, laboratory tests, treatment and outcome comparing patients with and without meningitis. Results Out of 469 patients suffering from spondylodiscitis, 30 patients (14 female) were diagnosed with an associated meningitis (6.4%). The mean CSF cell count was 3375.85 ± 8486.78/μl (range 32-41500/μl). The mean age at presentation was 70.87 ± 8.84 yrs (range 48-88 yrs). Mean C-reactive protein (CRP) and white blood cell (WBC) counts at time of admission were statistically higher in patients with associated meningitis (CRP: 19.81 ± 12.56 mg/dl vs. 11.63 ± 11.08 mg/dl, p = 0.001; WBC: 14.67 ± 7.76 g/l vs. 10.88 ± 05.11 g/l, p = 0.005. Mortality was also higher, as 13.3% and 7.1% of patients with and without concomitant meningitis died, respectively. Conclusion Bacterial meningitis due to spondylodiscitis is a rare but severe condition and is associated with higher morbidity and mortality rates. In patients with spondylodiscitis presenting with an altered state of consciousness an associated meningitis should be ruled out.
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Affiliation(s)
- Insa K. Janssen
- Department of Neurosurgery, Hôpitaux Universitaires Genève, Rue Gabrielle-Perret Gentil 4, 1205, Geneva, Switzerland
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Yu-Mi Ryang
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
- Department of Neurosurgery, Helios Klinikum Berlin-Buch, Schwanebecker Chaussee 50, 13125, Berlin, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Ehab Shiban
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
- Department of Neurosurgery, Universitätsklinikum Augsburg, Stenglinstr. 2, 86156, Augsburg, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
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Wolf S, Mielke D, Barner C, Malinova V, Kerz T, Wostrack M, Czorlich P, Salih F, Engel DC, Ehlert A, Staykov D, Alturki AY, Sure U, Bardutzky J, Schroeder HWS, Schürer L, Beck J, Juratli TA, Fritsch M, Lemcke J, Pohrt A, Meyer B, Schwab S, Rohde V, Vajkoczy P. Effectiveness of Lumbar Cerebrospinal Fluid Drain Among Patients With Aneurysmal Subarachnoid Hemorrhage: A Randomized Clinical Trial. JAMA Neurol 2023; 80:833-842. [PMID: 37330974 PMCID: PMC10277935 DOI: 10.1001/jamaneurol.2023.1792] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/31/2023] [Indexed: 06/20/2023]
Abstract
Importance After aneurysmal subarachnoid hemorrhage, the use of lumbar drains has been suggested to decrease the incidence of delayed cerebral ischemia and improve long-term outcome. Objective To determine the effectiveness of early lumbar cerebrospinal fluid drainage added to standard of care in patients after aneurysmal subarachnoid hemorrhage. Design, Setting, and Participants The EARLYDRAIN trial was a pragmatic, multicenter, parallel-group, open-label randomized clinical trial with blinded end point evaluation conducted at 19 centers in Germany, Switzerland, and Canada. The first patient entered January 31, 2011, and the last on January 24, 2016, after 307 randomizations. Follow-up was completed July 2016. Query and retrieval of data on missing items in the case report forms was completed in September 2020. A total of 20 randomizations were invalid, the main reason being lack of informed consent. No participants meeting all inclusion and exclusion criteria were excluded from the intention-to-treat analysis. Exclusion of patients was only performed in per-protocol sensitivity analysis. A total of 287 adult patients with acute aneurysmal subarachnoid hemorrhage of all clinical grades were analyzable. Aneurysm treatment with clipping or coiling was performed within 48 hours. Intervention A total of 144 patients were randomized to receive an additional lumbar drain after aneurysm treatment and 143 patients to standard of care only. Early lumbar drainage with 5 mL per hour was started within 72 hours of the subarachnoid hemorrhage. Main Outcomes and Measures Primary outcome was the rate of unfavorable outcome, defined as modified Rankin Scale score of 3 to 6 (range, 0 to 6), obtained by masked assessors 6 months after hemorrhage. Results Of 287 included patients, 197 (68.6%) were female, and the median (IQR) age was 55 (48-63) years. Lumbar drainage started at a median (IQR) of day 2 (1-2) after aneurysmal subarachnoid hemorrhage. At 6 months, 47 patients (32.6%) in the lumbar drain group and 64 patients (44.8%) in the standard of care group had an unfavorable neurological outcome (risk ratio, 0.73; 95% CI, 0.52 to 0.98; absolute risk difference, -0.12; 95% CI, -0.23 to -0.01; P = .04). Patients treated with a lumbar drain had fewer secondary infarctions at discharge (41 patients [28.5%] vs 57 patients [39.9%]; risk ratio, 0.71; 95% CI, 0.49 to 0.99; absolute risk difference, -0.11; 95% CI, -0.22 to 0; P = .04). Conclusion and Relevance In this trial, prophylactic lumbar drainage after aneurysmal subarachnoid hemorrhage lessened the burden of secondary infarction and decreased the rate of unfavorable outcome at 6 months. These findings support the use of lumbar drains after aneurysmal subarachnoid hemorrhage. Trial Registration ClinicalTrials.gov Identifier: NCT01258257.
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Affiliation(s)
- Stefan Wolf
- Department of Neurosurgery, Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Dorothee Mielke
- Department of Neurosurgery, University Medical Center Göttingen, Göttingen, Germany
| | - Christoph Barner
- Department of Anesthesiology, Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Vesna Malinova
- Department of Neurosurgery, University Medical Center Göttingen, Göttingen, Germany
| | - Thomas Kerz
- Department of Neurosurgery, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Technical University Munich, Munich, Germany
| | - Patrick Czorlich
- Department of Neurosurgery, Hamburg University Medical Center, Hamburg, Germany
| | - Farid Salih
- Department of Neurology, Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Doortje C. Engel
- Department of Neurosurgery, Cantonal Hospital St Gallen, St Gallen, Switzerland
| | - Angelika Ehlert
- Department of Neurosurgery, Asklepios Hospital St Georg, Hamburg, Germany
| | - Dimitre Staykov
- Department of Neurology, University Medical Center Erlangen-Nuremberg, Erlangen, Germany
- Department of Neurology, Hospital of the Brothers of St John, Eisenstadt, Austria
| | - Abdulrahman Y. Alturki
- Department of Neurology and Neurosurgery, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada
- Neurovascular Surgery Section, Adult Neurosurgery Department, National Neuroscience Institute, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Ulrich Sure
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Jürgen Bardutzky
- Department of Neurology, University Medical Center Erlangen-Nuremberg, Erlangen, Germany
- Department of Neurology, University of Freiburg, Freiburg, Germany
| | | | - Ludwig Schürer
- Department of Neurosurgery, Klinikum Bogenhausen, Technical University Munich, Munich, Germany
| | - Jürgen Beck
- Department of Neurosurgery, University of Freiburg, Freiburg, Germany
- Department of Neurosurgery, Inselspital, University of Bern, Switzerland
| | - Tareq A. Juratli
- Department of Neurosurgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Michael Fritsch
- Department of Neurosurgery, Dietrich Bonhoeffer Klinikum, Neubrandenburg, Germany
| | - Johannes Lemcke
- Department of Neurosurgery, Unfallkrankenhaus Berlin, Berlin, Germany
| | - Anne Pohrt
- Department of Medical Biometrics, Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Technical University Munich, Munich, Germany
| | - Stefan Schwab
- Department of Neurology, University Medical Center Erlangen-Nuremberg, Erlangen, Germany
| | - Veit Rohde
- Department of Neurosurgery, University Medical Center Göttingen, Göttingen, Germany
| | - Peter Vajkoczy
- Department of Neurosurgery, Charité–Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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Rühling S, Schwarting J, Froelich MF, Löffler MT, Bodden J, Hernandez Petzsche MR, Baum T, Wostrack M, Aftahy AK, Seifert-Klauss V, Sollmann N, Zimmer C, Kirschke JS, Tollens F. Cost-effectiveness of opportunistic QCT-based osteoporosis screening for the prediction of incident vertebral fractures. Front Endocrinol (Lausanne) 2023; 14:1222041. [PMID: 37576975 PMCID: PMC10422975 DOI: 10.3389/fendo.2023.1222041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023] Open
Abstract
Objectives Opportunistic quantitative computed tomography (oQCT) derived from non-dedicated routine CT has demonstrated high accuracy in diagnosing osteoporosis and predicting incident vertebral fractures (VFs). We aimed to investigate the cost-effectiveness of oQCT screening compared to dual-energy X-ray absorptiometry (DXA) as the standard of care for osteoporosis screening. Methods Three screening strategies ("no osteoporosis screening", "oQCT screening", and "DXA screening") after routine CT were simulated in a state-transition model for hypothetical cohorts of 1,000 patients (women and men aged 65 years) over a follow-up period of 5 years (base case). The primary outcomes were the cumulative costs and the quality-adjusted life years (QALYs) estimated from a U.S. health care perspective for the year 2022. Cost-effectiveness was assessed based on a willingness-to-pay (WTP) threshold of $70,249 per QALY. The secondary outcome was the number of prevented VFs. Deterministic and probabilistic sensitivity analyses were conducted to test the models' robustness. Results Compared to DXA screening, oQCT screening increased QALYs in both sexes (additional 2.40 per 1,000 women and 1.44 per 1,000 men) and resulted in total costs of $3,199,016 and $950,359 vs. $3,262,934 and $933,077 for women and men, respectively. As a secondary outcome, oQCT screening prevented 2.6 and 2.0 additional VFs per 1,000 women and men, respectively. In the probabilistic sensitivity analysis, oQCT screening remained cost-effective in 88.3% (women) and 90.0% (men) of iterations. Conclusion oQCT screening is a cost-effective ancillary approach for osteoporosis screening and has the potential to prevent a substantial number of VFs if considered in daily clinical practice.
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Affiliation(s)
- Sebastian Rühling
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Julian Schwarting
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Matthias F. Froelich
- Department of Radiology and Nuclear Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim-University of Heidelberg, Mannheim, Germany
| | - Maximilian T. Löffler
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Freiburg im Breisgau, Germany
| | - Jannis Bodden
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Moritz R. Hernandez Petzsche
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Thomas Baum
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - A. Kaywan Aftahy
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Vanadin Seifert-Klauss
- Department of Gynecology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Nico Sollmann
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- TUM-Neuroimaging Center, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Diagnostic and Interventional Radiology, University Hospital Ulm, Ulm, Germany
| | - Claus Zimmer
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jan S. Kirschke
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Fabian Tollens
- Department of Radiology and Nuclear Medicine, University Medical Centre Mannheim, Medical Faculty Mannheim-University of Heidelberg, Mannheim, Germany
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Baumgart L, Wagner A, Dorier AS, Droese D, Aftahy AK, Wostrack M, Ille S, Meyer B, Krieg SM. Predictive value of IOM in clipping of unruptured intracranial aneurysms - A prospective study from the surgeon's point of view. Brain Spine 2023; 3:101759. [PMID: 37383469 PMCID: PMC10293320 DOI: 10.1016/j.bas.2023.101759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 06/30/2023]
Abstract
Introduction Intraoperative neuromonitoring (IOM) of motor/somatosensory evoked potentials is a well-established approach for reducing ischemic complications after aneurysm clipping. Research question To determine the predictive validity of IOM for postoperative functional outcome and its perceived added value for intraoperative real-time feedback of functional impairment in the surgical treatment of unruptured intracranial aneurysms (UIAs). Material and methods Prospective study of patients scheduled for elective clipping of UIAs between 02/2019-02/2021. Transcranial motor evoked potentials (tcMEP) were used in all cases, a significant decline was defined as loss of ≥50% in amplitude or 50% latency increase. Clinical data were correlated to postoperative deficits. A surgeon's questionnaire was conceived. Results 47 patients were included, median age 57 years (range 26-76). IOM was successful in all cases. In 87.2%, IOM was stable throughout surgery, although 1 patient (2.4%) demonstrated a permanent postoperative neurological deficit. All patients with an intraoperatively reversible tcMEP-decline (12.7%) showed no surgery-related deficit, regardless of the decline duration (range 0.5-40.0 min; mean: 13.8). Temporary clipping (TC) was performed in 12 cases (25.5%), with a decline in amplitude in 4 patients. After clip-removal, all amplitudes returned to baseline. IOM provided the surgeon with a higher sense of security in 63.8%. Discussion and conclusion IOM remains invaluable during elective microsurgical clipping, particularly during TC of MCA and AcomA-aneurysms. It alerts the surgeon of impending ischemic injury and offers a way of maximizing the time frame for TC. IOM has highly increased surgeons' subjective feeling of security during the procedure.
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Affiliation(s)
- Lea Baumgart
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Arthur Wagner
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Anne-Sophie Dorier
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Doris Droese
- Department of Anaesthesiology, Technical University Munich School of Medicine, Munich, Germany
| | - Amir K. Aftahy
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Sebastian Ille
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Sandro M. Krieg
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
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Wagner A, Wostrack M, Hartz F, Heim J, Hameister E, Hildebrandt M, Meyer B, Winter C. The role of extended coagulation screening in adult cranial neurosurgery. Brain Spine 2023; 3:101756. [PMID: 37383462 PMCID: PMC10293229 DOI: 10.1016/j.bas.2023.101756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 04/23/2023] [Accepted: 05/10/2023] [Indexed: 06/30/2023]
Abstract
Introduction Postoperative hemorrhage after adult cranial neurosurgery is a serious complication with substantial morbidity and mortality. Research question We investigated if an extended preoperative screening and an early treatment of previously undetected coagulopathies may decrease the risk of postoperative hemorrhage. Methods A prospective study cohort of patients undergoing elective cranial surgery and receiving the extended coagulatory work-up were compared to a propensity matched historical control cohort. The extended work-up included a standardized questionnaire on the patient's bleeding history as well as coagulatory tests of Factor XIII, von-Willebrand-Factor and PFA-100®. Deficiencies were substituted perioperatively. The primary outcome was determined as the surgical revision rate due to postoperative hemorrhage. Results The study cohort and the control cohort included 197 cases each, without any significant difference in the preoperative intake of anticoagulant medication (p = .546). Most common interventions were resections of malignant tumors (41%), benign tumors (27%) and neurovascular surgeries (9%) in both cohorts. Imaging revealed postoperative hemorrhage in 7 cases (3.6%) in the study cohort and 18 cases (9.1%) in the control cohort (p = .023). Of these, revision surgeries were significantly more common in the control cohort with 14 cases (9.1%) compared to 5 cases (2.5%) in the study cohort (p = .034). Differences in mean intraoperative blood loss were not significant with 528 ml in the study cohort and 486 ml in the control cohort (p = .376). Conclusion Preoperative extended coagulatory screening may allow for revealing previously undiagnosed coagulopathies with subsequent preoperative substitution and thereby reduction of risk for postoperative hemorrhage in adult cranial neurosurgery.
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Affiliation(s)
- Arthur Wagner
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Frederik Hartz
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Johannes Heim
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Erik Hameister
- Institute of Clinical Chemistry and Pathobiochemistry, Technical University Munich School of Medicine, Munich, Germany
| | - Martin Hildebrandt
- Institute of Clinical Chemistry and Pathobiochemistry, Technical University Munich School of Medicine, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Christof Winter
- Institute of Clinical Chemistry and Pathobiochemistry, Technical University Munich School of Medicine, Munich, Germany
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Vajkoczy P, Thomé C, Kerschbaumer J, Meyer B, Wostrack M, Adage T, Breitenbach J, Bavinzski G, Hirschmann D, Bendszus M, Rohde V, Mielke D, Wessels L. 104 A Safety and Efficacy Study of NicaPlant® in Aneurysmal Subarachnoid Haemorrhage Patients Undergoing Aneurysm Clipping. Neurosurgery 2023. [DOI: 10.1227/neu.0000000000002375_104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
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Hostettler IC, Lange N, Schwendinger N, Ambler G, Hirle T, Frangoulis S, Trost D, Gempt J, Kreiser K, Meyer B, Winter C, Wostrack M. VPS dependency after aneurysmal subarachnoid haemorrhage and influence of admission hyperglycaemia. Eur Stroke J 2023; 8:301-308. [PMID: 37021154 PMCID: PMC10069185 DOI: 10.1177/23969873221147087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 12/05/2022] [Indexed: 12/31/2022] Open
Abstract
Introduction Hydrocephalus after aneurysmal subarachnoid haemorrhage (aSAH) is a common complication which may lead to insertion of a ventriculoperitoneal shunt (VPS). Our aim is to evaluate a possible influence of specific clinical and biochemical factors on VPS dependency with special emphasis on hyperglycaemia on admission. Patients and methods Retrospective analysis of a monocentric database of aSAH patients. Using univariable and multivariable logistic regression analysis we evaluated factors influencing VPS dependency, with a special focus on hyperglycaemia on blood sample within 24 h of admission, dichotomised at 126 mg/dl. Factors evaluated in the univariable analysis were age, sex, known diabetes, Hunt and Hess grade, Barrow Neurological Institute scale, treatment modality, extra-ventricular drain (EVD) insertion, complications (rebleeding, vasospasm, infarction, decompressive craniectomy, ventriculitis), outcome variables and laboratory parameters (glucose, C-reactive protein, procalcitonin). Results We included 510 consecutive patients treated with acute aSAH requiring a VPS (mean age 58.2 years, 66% were female). An EVD was inserted in 387 (75.9%) patients. In the univariable analysis, VPS dependency was associated with hyperglycaemia on admission (OR 2.56, 95%CI 1.58-4.14, p < 0.001). In the multivariable regression analysis after stepwise backward regression, factors associated with VPS dependency were hyperglycaemia >126 mg/dl on admission (OR 1.93, 95%CI 1.13-3.30, p = 0.02), ventriculitis (OR 2.33, 95%CI 1.33-4.04, p = 0.003), Hunt and Hess grade (overall p-value 0.02) and decompressive craniectomy (OR 2.68, 95%CI 1.55-4.64, p < 0.001). Conclusion Hyperglycaemia on admission was associated with an increased probability of VPS placement. If confirmed, this finding might facilitate treatment of these patients by accelerating insertion of a permanent draining system.
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Affiliation(s)
- Isabel Charlotte Hostettler
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Neurosurgery, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Nicole Lange
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Nina Schwendinger
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Gareth Ambler
- Department of Statistical Science, University College London, London, UK
| | - Theresa Hirle
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Samira Frangoulis
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Dominik Trost
- Department of Neuroradiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Kornelia Kreiser
- Department of Neuroradiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Christof Winter
- Institute of Clinical Chemistry and Pathobiochemistry, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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Güresir E, Lampmann T, Bele S, Czabanka M, Czorlich P, Gempt J, Goldbrunner R, Hurth H, Hermann E, Jabbarli R, Krauthausen M, König R, Lindner D, Malinova V, Meixensberger J, Mielke D, Németh R, Darkwah Oppong M, Pala A, Prinz V, Rashidi A, Roder C, Sandalcioglu IE, Sauvigny T, Schebesch KM, Timmer M, Vajkoczy P, Wessels L, Wild F, Wilhelm C, Wostrack M, Vatter H, Coch C. Fight INflammation to Improve outcome after aneurysmal Subarachnoid HEmorRhage (FINISHER) trial: Study protocol for a randomized controlled trial. Int J Stroke 2023; 18:242-247. [PMID: 35361026 DOI: 10.1177/17474930221093501] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
RATIONALE Aneurysmal subarachnoid hemorrhage (SAH) has high morbidity and mortality. While the primary injury results from the initial bleeding cannot currently be influenced, secondary injury through vasospasm and delayed cerebral ischemia worsens outcome and might be a target for interventions to improve outcome. To date, beside the aneurysm treatment to prevent re-bleeding and the administration of oral nimodipine, there is no therapy available, so novel treatment concepts are needed. Evidence suggests that inflammation contributes to delayed cerebral ischemia and poor outcome in SAH. Some studies suggest a beneficial effect of anti-inflammatory glucocorticoids, but there are no data from randomized controlled trials examining the efficacy of glucocorticoids. Therefore, current guidelines do not recommend the use of glucocorticoids in SAH. AIM The Fight INflammation to Improve outcome after aneurysmal Subarachnoid HEmorRhage (FINISHER) trial aims to determine whether dexamethasone improves outcome in a clinically relevant endpoint in SAH patients. METHODS AND DESIGN FINISHER is a multicenter, prospective, randomized, double-blinded, placebo-controlled clinical phase III trial which is testing the outcome and safety of anti-inflammatory treatment with dexamethasone in SAH patients. SAMPLE SIZE ESTIMATES In all, 334 patients will be randomized to either dexamethasone or placebo within 48 h after SAH. The dexamethasone dose is 8 mg tds for days 1-7 and then 8 mg od for days 8-21. STUDY OUTCOME The primary outcome is the modified Rankin Scale (mRS) at 6 months, which is dichotomized to favorable (mRS 0-3) versus unfavorable (mRS 4-6). DISCUSSION The results of this study will provide the first phase III evidence as to whether dexamethasone improves outcome in SAH.
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Affiliation(s)
- Erdem Güresir
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | - Tim Lampmann
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | - Sylvia Bele
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Marcus Czabanka
- Department of Neurosurgery, Johann Wolfgang Goethe-Universität Frankfurt am Main, Frankfurt, Germany
| | - Patrick Czorlich
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Roland Goldbrunner
- Department of General Neurosurgery, Center for Neurosurgery, University of Cologne, Cologne, Germany
| | - Helene Hurth
- Department of Neurosurgery, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Elvis Hermann
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
| | - Ramazan Jabbarli
- Department of Neurosurgery and Spine Surgery, University Hospital of Essen, Essen, Germany
| | - Marius Krauthausen
- Clinical Study Core Unit, Study Center Bonn (SZB), University Hospital Bonn, Bonn, Germany
| | - Ralph König
- Department of Neurosurgery, University of Ulm/BKH Günzburg, Günzburg, Germany
| | - Dirk Lindner
- Department of Neurosurgery, University Hospital Leipzig, Leipzig, Germany
| | - Vesna Malinova
- Department of Neurosurgery, Georg-August-Universität Göttingen, Göttingen, Germany
| | | | - Dorothee Mielke
- Department of Neurosurgery, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Robert Németh
- Institute of Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany
| | - Marvin Darkwah Oppong
- Department of Neurosurgery and Spine Surgery, University Hospital of Essen, Essen, Germany
| | - Andrej Pala
- Department of Neurosurgery, University of Ulm/BKH Günzburg, Günzburg, Germany
| | - Vincent Prinz
- Department of Neurosurgery, Johann Wolfgang Goethe-Universität Frankfurt am Main, Frankfurt, Germany
| | - Ali Rashidi
- Department of Neurosurgery, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - Constantin Roder
- Department of Neurosurgery, Eberhard Karls University of Tübingen, Tübingen, Germany
| | | | - Thomas Sauvigny
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Marco Timmer
- Department of General Neurosurgery, Center for Neurosurgery, University of Cologne, Cologne, Germany
| | - Peter Vajkoczy
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Lars Wessels
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Florian Wild
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
| | - Christoph Wilhelm
- Immunopathology Unit, Institute of Clinical Chemistry and Clinical Pharmacology, Medical Faculty, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Hartmut Vatter
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | - Christoph Coch
- Clinical Study Core Unit, Study Center Bonn (SZB), University Hospital Bonn, Bonn, Germany
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18
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Butenschoen VM, Schwendner M, Hubertus V, Onken J, Koegl N, Mohme T, Maurer S, Boeckh-Behrens T, Eicker SO, Thomé C, Vajkoczy P, Czabanka M, Meyer B, Wostrack M. Preoperative angiographic considerations and neurological outcome after surgical treatment of intradural spinal hemangioblastoma: a multicenter retrospective case series. J Neurooncol 2023; 161:107-115. [PMID: 36566460 PMCID: PMC9886638 DOI: 10.1007/s11060-022-04213-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/07/2022] [Indexed: 12/26/2022]
Abstract
PURPOSE Intradural spinal hemangioblastomas are rare highly hypervascularized benign neoplasms. Surgical resection remains the treatment of choice, with a significant risk of postoperative neurological deterioration. Due to the tumor infrequency, scientific evidence is scarce and limited to case reports and small case series. METHODS We performed a retrospective multicenter study including five high-volume neurosurgical centers analyzing patients surgically treated for spinal hemangioblastomas between 2006 and 2021. We assessed clinical status, surgical data, preoperative angiograms, and embolization when available. Follow-up records were analyzed, and logistic regression performed to assess possible risk factors for neurological deterioration. RESULTS We included 60 patients in Germany and Austria. Preoperative angiography was performed in 30% of the cases; 10% of the patients underwent preoperative embolization. Posterior tumor location and presence of a syrinx favored gross total tumor resection (93.8% vs. 83.3% and 97.1% vs. 84%). Preoperative embolization was not associated with postoperative worsening. The clinical outcome revealed a transient postoperative neurological deterioration in 38.3%, depending on symptom duration and preoperative modified McCormick grading, but patients recovered in most cases until follow-up. CONCLUSION Spinal hemangioblastoma patients significantly benefit from early surgical treatment with only transient postoperative deterioration and complete recovery until follow-up. The performance of preoperative angiograms remains subject to center disparities.
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Affiliation(s)
- Vicki M. Butenschoen
- Department of Neurosurgery, School of Medicine, Technical University Munich, Klinikum Rechts der Isar, Ismaningerstr. 22, 81675 Munich, Germany
| | - Maximilian Schwendner
- Department of Neurosurgery, School of Medicine, Technical University Munich, Klinikum Rechts der Isar, Ismaningerstr. 22, 81675 Munich, Germany
| | - Vanessa Hubertus
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Julia Onken
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany ,Berlin Institute of Health, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Nikolaus Koegl
- Department of Neurosurgery, Medical University of Innsbruck, Anichstr. 35, 6020 Innsbruck, Austria
| | - Theresa Mohme
- Department of Neurosurgery, University Medical Center Hamburg Eppendorf, Martinistraße 52, 20251 Hamburg, Germany
| | - Stefanie Maurer
- Department of Neurosurgery, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Tobias Boeckh-Behrens
- Department of Neuroradiology, School of Medicine, Technical University Munich, Ismaningerstr. 22, 81675 Munich, Germany
| | - Sven O. Eicker
- Department of Neurosurgery, University Medical Center Hamburg Eppendorf, Martinistraße 52, 20251 Hamburg, Germany
| | - Claudius Thomé
- Department of Neurosurgery, Medical University of Innsbruck, Anichstr. 35, 6020 Innsbruck, Austria
| | - Peter Vajkoczy
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany ,Berlin Institute of Health, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Marcus Czabanka
- Department of Neurosurgery, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, School of Medicine, Technical University Munich, Klinikum Rechts der Isar, Ismaningerstr. 22, 81675 Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, School of Medicine, Technical University Munich, Klinikum Rechts der Isar, Ismaningerstr. 22, 81675 Munich, Germany
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19
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Hostettler IC, Kreiser K, Lange N, Schwendinger N, Trost D, Frangoulis S, Hirle T, Gempt J, Wostrack M, Meyer B. Treatment during cerebral vasospasm phase-complication association and outcome in aneurysmal subarachnoid haemorrhage. J Neurol 2022; 269:5553-5560. [PMID: 35729347 PMCID: PMC9468043 DOI: 10.1007/s00415-022-11212-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/27/2022] [Accepted: 06/01/2022] [Indexed: 11/28/2022]
Abstract
Background Aneurysm treatment during cerebral vasospasm (CVS) phase is frequently considered as particularly dangerous, mainly because of the risk of cerebral infarct. Objective We aimed to evaluate the risk of aneurysmal subarachnoid haemorrhage (aSAH)-specific complications and functional outcome in patients treated during CVS phase. Methods We retrospectively analysed a large, retro- and prospectively collected database of aSAH patients admitted to our department between March 2006 and March 2020. We conducted a uni- and multivariable logistic regression analysis to evaluate influencing factors on rebleeding, cerebral infarct, Glasgow Outcome Score (GOS) at discharge and mortality and assessed the rate of angiographic vasospasm on admission. Results We included 853 patients. The majority of patients were female (66.6%), mean age was 57.3 years. Out of 853 included patients, 92 (10.8%) were treated during CVS phase, 312 (36.6%) underwent clipping and 541 (63.4%) endovascular treatment. Treatment during CVS phase was significantly associated with cerebral infarct in the multivariable logistic regression analysis, unrelated to the nature of intervention (OR 2.42, 1.29–4.54 95% CI p-value = 0.006). However, patients treated during CVS phase did not have increased risk of unfavourable outcome by GOS on discharge. In addition, they did not have a higher rate of rebleeding or mortality. Conclusions Treatment during CVS phase was significantly associated with a higher rate of cerebral infarct as confirmed by imaging. This did not reflect on GOS on discharge, rebleeding, or mortality. Aneurysm treatment during CVS phase is relatively safe and should not be postponed due to the risk of rebleeding and subsequent devastating deterioration. Supplementary Information The online version contains supplementary material available at 10.1007/s00415-022-11212-w.
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Affiliation(s)
- Isabel C Hostettler
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstrasse 22, 81675, Munich, Germany. .,Department of Neurosurgery, Cantonal Hospital St. Gallen, St. Gallen, Switzerland.
| | - Kornelia Kreiser
- Department of Neuroradiology, Klinikum Rechts Der Isar, Technical University Munich, Munich, Germany
| | - Nicole Lange
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstrasse 22, 81675, Munich, Germany
| | - Nina Schwendinger
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstrasse 22, 81675, Munich, Germany
| | - Dominik Trost
- Department of Neuroradiology, Klinikum Rechts Der Isar, Technical University Munich, Munich, Germany
| | - Samira Frangoulis
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstrasse 22, 81675, Munich, Germany
| | - Theresa Hirle
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstrasse 22, 81675, Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstrasse 22, 81675, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstrasse 22, 81675, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstrasse 22, 81675, Munich, Germany
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20
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Butenschoen VM, Gloßner T, Hostettler IC, Meyer B, Wostrack M. Quality of life and return to work and sports after spinal ependymoma resection. Sci Rep 2022; 12:4926. [PMID: 35322104 PMCID: PMC8943200 DOI: 10.1038/s41598-022-09036-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/14/2022] [Indexed: 11/30/2022] Open
Abstract
Adult spinal ependymoma presents a rare low-grade tumor entity. Due to its incidence peak in the fourth decade of life, it mostly affects patients during a professionally and physically active time of life. We performed a retrospective monocentric study, including all patients operated upon for spinal ependymoma between 2009 and 2020. We prospectively collected data on professional reintegration, physical activities and quality-of-life parameters using EQ-5D and SF-36. Issues encountered were assessed using existing spinal-cord-specific questionnaires and free-text questions. In total, 65 of 114 patients agreed to participate. Most patients suffered from only mild pre- and postoperative impairment on the modified McCormick scale, but 67% confirmed difficulties performing physical activities in which they previously engaged due to pain, coordination problems and fear of injuries after a median follow-up of 5.4 years. We observed a shift from full- to part-time employment and patients unable to work, independently from tumor dignity, age and neurological function. Despite its benign nature and occurrence of formal only mild neurological deficits, patients described severe difficulties returning to their preoperative physical activity and profession. Clinical scores such as the McCormick grade and muscle strength may not reflect the entire self-perceived impairment appropriately.
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Affiliation(s)
- Vicki M Butenschoen
- Department of Neurosurgery, School of Medicine, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.
| | - Till Gloßner
- Department of Neurosurgery, School of Medicine, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - Isabel C Hostettler
- Department of Neurosurgery, Kantonspital St. Gallen, Rorschacher Strasse 95, 9007, St. Gallen, Switzerland
| | - Bernhard Meyer
- Department of Neurosurgery, School of Medicine, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, School of Medicine, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
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21
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Meyer HS, Wagner A, Obermueller T, Negwer C, Wostrack M, Krieg S, Gempt J, Meyer B. Assessment of the incidence and nature of adverse events and their association with human error in neurosurgery. A prospective observation. Brain and Spine 2022; 2:100853. [PMID: 36248119 PMCID: PMC9560675 DOI: 10.1016/j.bas.2021.100853] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/10/2021] [Accepted: 12/16/2021] [Indexed: 12/25/2022]
Abstract
Introduction Adverse events in surgery are a relevant cause of costs, disability, or death, and their incidence is a key quality indicator that plays an important role in the future of health care. In neurosurgery, little is known about the frequency of adverse events and the contribution of human error. Research question To determine the incidence, nature and severity of adverse events in neurosurgery, and to investigate the contribution of human error. Material and methods Prospective observation of all adverse events occurring at an academic neurosurgery referral center focusing on neuro-oncology, cerebrovascular and spinal surgery. All 4176 inpatients treated between September 2019 and September 2020 were included. Adverse events were recorded daily and their nature, severity and a potential contribution of human error were evaluated weekly by all senior neurosurgeons of the department. Results 25.0% of patients had at least one adverse event. In 25.9% of these cases, the major adverse event was associated with human error, mostly with execution (18.3%) or planning (5.6%) deficiencies. 48.8% of cases with adverse events were severe (≥SAVES-v2 grade 3). Patients with multiple adverse events (8.6%) had more severe adverse events (67.6%). Adverse events were more severe in cranial than in spinal neurosurgery (57.6 vs. 39.4%). Discussion and conclusion Adverse events occur frequently in neurosurgery. These data can serve as benchmarks when discussing quality-based accreditation and reimbursement in upcoming health care reforms. The high frequency of human performance deficiencies contributing to adverse events shows that there is potential to further eliminate avoidable patient harm. Prospective observation of all patients treated at an academic neurosurgical center. Investigation of the incidence and severity of adverse events and their relation to human error. 25.0% of patients had at least one adverse event. Human error was involved in 25.9% of cases with adverse events. These data provide benchmarks for tertiary care neurosurgery and health care reform.
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22
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Dieckmeyer M, Löffler MT, El Husseini M, Sekuboyina A, Menze B, Sollmann N, Wostrack M, Zimmer C, Baum T, Kirschke JS. Level-Specific Volumetric BMD Threshold Values for the Prediction of Incident Vertebral Fractures Using Opportunistic QCT: A Case-Control Study. Front Endocrinol (Lausanne) 2022; 13:882163. [PMID: 35669688 PMCID: PMC9165054 DOI: 10.3389/fendo.2022.882163] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/08/2022] [Indexed: 11/13/2022] Open
Abstract
PURPOSE To establish and evaluate the diagnostic accuracy of volumetric bone mineral density (vBMD) threshold values at different spinal levels, derived from opportunistic quantitative computed tomography (QCT), for the prediction of incident vertebral fractures (VF). MATERIALS AND METHODS In this case-control study, 35 incident VF cases (23 women, 12 men; mean age: 67 years) and 70 sex- and age-matched controls were included, based on routine multi detector CT (MDCT) scans of the thoracolumbar spine. Trabecular vBMD was measured from routine baseline CT scans of the thoracolumbar spine using an automated pipeline including vertebral segmentation, asynchronous calibration for HU-to-vBMD conversion, and correction of intravenous contrast medium (https://anduin.bonescreen.de). Threshold values at T1-L5 were calculated for the optimal operating point according to the Youden index and for fixed sensitivities (60 - 85%) in receiver operating characteristic (ROC) curves. RESULTS vBMD at each single level of the thoracolumbar spine was significantly associated with incident VFs (odds ratio per SD decrease [OR], 95% confidence interval [CI] at T1-T4: 3.28, 1.66-6.49; at T5-T8: 3.28, 1.72-6.26; at T9-T12: 3.37, 1.78-6.36; and at L1-L4: 3.98, 1.97-8.06), independent of adjustment for age, sex, and prevalent VF. AUC showed no significant difference between vertebral levels and was highest at the thoracolumbar junction (AUC = 0.75, 95%-CI = 0.63 - 0.85 for T11-L2). Optimal threshold values increased from lumbar (L1-L4: 52.0 mg/cm³) to upper thoracic spine (T1-T4: 69.3 mg/cm³). At T11-L2, T12-L3 and L1-L4, a threshold of 80.0 mg/cm³ showed sensitivities of 85 - 88%, and specificities of 41 - 49%. To achieve comparable sensitivity (85%) at more superior spinal levels, resulting thresholds were higher: 114.1 mg/cm³ (T1-T4), 92.0 mg/cm³ (T5-T8), 88.2 mg/cm³ (T9-T12). CONCLUSIONS At all levels of the thoracolumbar spine, lower vBMD was associated with incident VFs in an elderly, predominantly oncologic patient population. Automated opportunistic osteoporosis screening of vBMD along the entire thoracolumbar spine allows for risk assessment of imminent VFs. We propose level-specific vBMD threshold at the thoracolumbar spine to identify individuals at high fracture risk.
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Affiliation(s)
- Michael Dieckmeyer
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- *Correspondence: Michael Dieckmeyer,
| | - Maximilian Thomas Löffler
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Radiology, University Medical Center, Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Malek El Husseini
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Anjany Sekuboyina
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Bjoern Menze
- Image-Based Biomedical Modeling, Department of Computer Science, Technical University of Munich, Munich, Germany
- Department of Quantitative Biomedicine, Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Nico Sollmann
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- TUM-Neuroimaging Center, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Diagnostic and Interventional Radiology, University Hospital Ulm, Ulm, Germany
| | - Maria Wostrack
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Neurosurgery, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Claus Zimmer
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Thomas Baum
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jan Stefan Kirschke
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- TUM-Neuroimaging Center, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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23
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Ille S, Schroeder A, Hostettler IC, Wostrack M, Meyer B, Krieg SM. Impacting the Treatment of Highly Eloquent Supratentorial Cerebral Cavernous Malformations by Noninvasive Functional Mapping-An Observational Cohort Study. Oper Neurosurg (Hagerstown) 2021; 21:467-477. [PMID: 34624894 DOI: 10.1093/ons/opab318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 07/18/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Cerebral cavernous malformations (CCM) may cause cavernoma-related epilepsy (CRE) and intracranial hemorrhage (ICH). Functional mapping has shown its usefulness during the resection of eloquent lesions including the treatment of brain arteriovenous malformations. OBJECTIVE To evaluate the impact of noninvasive functional mapping on decision-making and resection of eloquently located CCM. METHODS Of 126 patients with intracranial cavernomas, we prospectively included 40 consecutive patients (31.7%) with highly eloquent CCM between 2012 and 2020. We performed functional mapping via navigated transcranial magnetic stimulation (nTMS) motor mapping in 30 cases and nTMS language mapping in 20 cases. Twenty patients suffered from CRE. CCM caused ICH in 18 cases. RESULTS We used functional mapping data including function-based tractography in all cases. Indication toward (31 cases) or against (9 cases) CCM resection was influenced by noninvasive functional mapping in 36 cases (90%). We resected CCMs in 24 cases, and 7 patients refused the recommendation for surgery. In 19 and 4 cases, we used additional intraoperative neuromonitoring and awake craniotomy, respectively. Patients suffered from transient postoperative motor or language deficits in 2 and 2 cases, respectively. No patient suffered from permanent deficits. After 1 yr of follow-up, anti-epileptic drugs could be discontinued in all patients who underwent surgery but 1 patient. CONCLUSION Surgery-related deficit rates are low even for highly eloquent CCM and seizure outcome is excellent. The present results show that noninvasive functional mapping and function-based tractography is a useful tool for the decision-making process and during microsurgical resection of eloquently located CCM.
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Affiliation(s)
- Sebastian Ille
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Axel Schroeder
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Isabel C Hostettler
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Sandro M Krieg
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
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24
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Anetsberger A, Jungwirth B, Blobner M, Ringel F, Bernlochner I, Heim M, Bogdanski R, Wostrack M, Schneider G, Meyer B, Graeßner M, Baumgart L, Gempt J. Association of Troponin T levels and functional outcome 3 months after subarachnoid hemorrhage. Sci Rep 2021; 11:16154. [PMID: 34373566 PMCID: PMC8352969 DOI: 10.1038/s41598-021-95717-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 07/23/2021] [Indexed: 12/19/2022] Open
Abstract
TroponinT levels are frequently elevated after subarachnoid hemorrhage (SAH). However, their clinical impact on long term outcomes still remains unclear. This study evaluates the association of TroponinT and functional outcomes 3 months after SAH. Data were obtained in the frame of a randomized controlled trial exploring the association of Goal-directed hemodynamic therapy and outcomes after SAH (NCT01832389). TroponinT was measured daily for the first 14 days after admission or until discharge from the ICU. Outcome was assessed using Glasgow Outcome Scale (GOS) 3 months after discharge. Logistic regression was used to explore the association between initial TroponinT values stratified by tertiles and admission as well as outcome parameters. TroponinT measurements were analyzed in 105 patients. TroponinT values at admission were associated with outcome assessed by GOS in a univariate analysis. TroponinT was not predictive of vasospasm or delayed cerebral ischemia, but an association with pulmonary and cardiac complications was observed. After adjustment for age, history of arterial hypertension and World Federation of Neurosurgical Societies (WFNS) grade, TroponinT levels at admission were not independently associated with worse outcome (GOS 1–3) or death at 3 months. In summary, TroponinT levels at admission are associated with 3 months-GOS but have limited ability to independently predict outcome after SAH.
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Affiliation(s)
- Aida Anetsberger
- Department of Anesthesiology, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Bettina Jungwirth
- Department of Anesthesiology, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany.,Department of Anesthesiology, Universitätsklinikum Ulm, Ulm, Germany
| | - Manfred Blobner
- Department of Anesthesiology, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Florian Ringel
- Department of Neurosurgery, Universitätsmedizin Mainz, Langenbeckstr.1, 55131, Mainz, Germany.,Department of Neurosurgery, Klinikum Rechts der Isar, Technical University Munich, Ismaninger Str.22, 81675, Munich, Germany
| | - Isabell Bernlochner
- I. Medizinische Klinik und Poliklinik, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Markus Heim
- Department of Anesthesiology, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Ralph Bogdanski
- Department of Anesthesiology, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University Munich, Ismaninger Str.22, 81675, Munich, Germany
| | - Gerhard Schneider
- Department of Anesthesiology, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University Munich, Ismaninger Str.22, 81675, Munich, Germany
| | - Martin Graeßner
- Department of Anesthesiology, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany.,Department of Anesthesiology, Universitätsklinikum Ulm, Ulm, Germany
| | - Lea Baumgart
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University Munich, Ismaninger Str.22, 81675, Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University Munich, Ismaninger Str.22, 81675, Munich, Germany.
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25
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Wagner A, Haag E, Joerger AK, Gempt J, Krieg SM, Wostrack M, Meyer B. Cement-Augmented Carbon Fiber-Reinforced Pedicle Screw Instrumentation for Spinal Metastases: Safety and Efficacy. World Neurosurg 2021; 154:e536-e546. [PMID: 34339894 DOI: 10.1016/j.wneu.2021.07.092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To investigate the complication rates and long-term implant failure rates in a monocentric study of a consecutive cohort of patients with thoracolumbar spinal metastases after posterior instrumentation with a fenestrated carbon fiber-reinforced poly-ether-ether-ketone (CFRP) pedicle screw system. METHODS We retrospectively reviewed demographics, Karnofsky Performance Status Scale scores, complications, and implant failure rates. RESULTS Between June 2016 and November 2019, 51 consecutive patients underwent cement-augmented CFRP pedicle screw instrumentation at our institution. Mean age was 68 years (standard deviation 10.5), the median preoperative Karnofsky Performance Status Scale of 80 increased to 90 postoperatively (P = 0.471). Most common primary entities were breast (25.5%), lung (15.7%), and prostate (13.7%) cancers. Of 428 placed screws, 293 (68.5%) were augmented with polymethylmethacrylate, a mean 6 per patient (standard deviation ±2). Screws were inserted via a minimally invasive system technique in 54.9% of cases. In total, 11.8% of patients had immediate postoperative sequelae related to the cement. Pulmonary cement embolisms were noted in 3 patients, 2 had paravertebral extravasation, and 1 had an embolism into a segmental artery. Of these 6, 2 patients with pulmonary embolisms reported related symptoms. Follow-up was available for 80.4%. After a mean 9.8 months, screw loosening was noted in 11.8% of cases on computed tomography, although it was asymptomatic in all but 1 patient. Screw pull-out did not occur. Neither cement-related (P = 0.353) nor general complication rates (P = 0.507) differed significantly between open and minimally invasive system techniques. CONCLUSIONS Percutaneous cement-augmented CFRP pedicle screw instrumentation facilitates artifact-reduced postoperative imaging, while maintaining a risk profile and implant failure rates comparable to conventional metallic instrumentation.
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Affiliation(s)
- Arthur Wagner
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany.
| | - Elena Haag
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Ann-Kathrin Joerger
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Sandro M Krieg
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Technical University Munich School of Medicine, Munich, Germany
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26
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Butenschoen VM, Kögl N, Meyer B, Thomé C, Wostrack M. A Case Series of Surgically Treated Spinal Dumbbell Tumors of Critical Parent Nerve Roots: To Cut or Not to Cut? Oper Neurosurg (Hagerstown) 2021; 20:260-267. [PMID: 33372957 DOI: 10.1093/ons/opaa365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/06/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Dumbbell tumors present challenging cases, with either an incomplete tumor resection or a need to sacrifice nerve roots. Published literature suggests encouraging neurological outcomes after nerve root amputation. OBJECTIVE To determine the incidence of postoperative neurological deficits after amputating the parent nerve root. METHODS A retrospective consecutive analysis of all patients treated for dumbbell nerve sheet tumors with a reported amputation of the functional relevant parent nerve roots C5-Th1 and L3-S1. RESULTS Among 21 evaluated patients, minor postoperative neurological motor function deterioration occurred in 4 patients (19%). Most patients recovered to the preoperative level at the follow-up examination, and only one patient retained a new Medical Research Council (MRC) scale of 4/5 for deltoid weakness. The majority of tumors were resected at the lumbar level (nerve root L3: 28.6%, L5: 19%). Gross total resection was achieved in 90.5% of patients. Neuropathic pain was reported in one third of the patients during the long-term follow-up. CONCLUSION Amputating critical parent nerve roots during the dumbbell tumor resections seems to result in a low incidence of postoperative motor deficits and may offer an acceptable sacrifice in otherwise only incompletely resectable dumbbell tumors. The cross-innervation of neighboring nerve roots and its, probably, per-se-reduced functionality may be a possible mechanism for maintaining motor function.
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Affiliation(s)
- Vicki Marie Butenschoen
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Nikolaus Kögl
- Department of Neurosurgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Claudius Thomé
- Department of Neurosurgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
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27
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Janssen IK, Jörger AK, Barz M, Sarkar C, Wostrack M, Meyer B. Minimally invasive posterior pedicle screw fixation versus open instrumentation in patients with thoracolumbar spondylodiscitis. Acta Neurochir (Wien) 2021; 163:1553-1560. [PMID: 33655377 DOI: 10.1007/s00701-021-04744-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 01/27/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Due to the aging society, the incidence of pyogenic spondylodiscitis is still rising. Although surgical treatment for spondylodiscitis in general is increasingly accepted, an optimal surgical strategy for treatment of pyogenic spinal infection has not yet been established. The aim of this study was to investigate the suitability of percutaneous posterior pedicle screw fixation for surgical treatment in patients with spondylodiscitis of the thoracolumbar spine. METHODS We conducted a retrospective review of a consecutive cohort of patients undergoing surgical treatment for spondylodiscitis of the thoracolumbar spine between January 2017 and December 2019. We assessed intraoperative and clinical data, comparing for the classic open and the percutaneous approach. In total, we analyzed 125 cases (39 female, 86 male). The mean age was 69.49 years ± 12.63 years. RESULTS Forty-seven (37.6%) patients were operated on by a percutaneous approach for pedicle screw fixation, and 78 (62.4%) received open surgery. There was no significant difference in the mean age of patients between both groups (p= 0.57). The time of surgery for percutaneous fixation was statistically significantly shorter (p= 0.03). Furthermore, the estimated intraoperative blood loss was significantly lower in the minimally invasive group (p < 0.001). No significant difference could be observed regarding the recurrence rate of spondylodiscitis and the occurrence of surgical site infections (p= 0.2 and 0.5, respectively). CONCLUSION Percutaneous posterior pedicle screw fixation appears to be a feasible option for the surgical treatment of a selected patient group with spondylodiscitis of the thoracic and lumbar spine.
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Cheng S, Mao X, Lin X, Wehn A, Hu S, Mamrak U, Khalin I, Wostrack M, Ringel F, Plesnila N, Terpolilli NA. Acid-Ion Sensing Channel 1a Deletion Reduces Chronic Brain Damage and Neurological Deficits after Experimental Traumatic Brain Injury. J Neurotrauma 2021; 38:1572-1584. [PMID: 33779289 DOI: 10.1089/neu.2020.7568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Traumatic brain injury (TBI) causes long-lasting neurodegeneration and cognitive impairments; however, the underlying mechanisms of these processes are not fully understood. Acid-sensing ion channels 1a (ASIC1a) are voltage-gated Na+- and Ca2+-channels shown to be involved in neuronal cell death; however, their role for chronic post-traumatic brain damage is largely unknown. To address this issue, we used ASIC1a-deficient mice and investigated their outcome up to 6 months after TBI. ASIC1a-deficient mice and their wild-type (WT) littermates were subjected to controlled cortical impact (CCI) or sham surgery. Brain water content was analyzed 24 h and behavioral outcome up to 6 months after CCI. Lesion volume was assessed longitudinally by magnetic resonance imaging and 6 months after injury by histology. Brain water content was significantly reduced in ASIC1a-/- animals compared to WT controls. Over time, ASIC1a-/- mice showed significantly reduced lesion volume and reduced hippocampal damage. This translated into improved cognitive function and reduced depression-like behavior. Microglial activation was significantly reduced in ASIC1a-/- mice. In conclusion, ASIC1a deficiency resulted in reduced edema formation acutely after TBI and less brain damage, functional impairments, and neuroinflammation up to 6 months after injury. Hence, ASIC1a seems to be involved in chronic neurodegeneration after TBI.
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Affiliation(s)
- Shiqi Cheng
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Xiang Mao
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Xiangjiang Lin
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Antonia Wehn
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Senbin Hu
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Uta Mamrak
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Igor Khalin
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Technical University Munich, Munich, Germany
| | - Florian Ringel
- Department of Neurosurgery, University Medical Center Mainz, Mainz, Germany
| | - Nikolaus Plesnila
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Nicole A Terpolilli
- Institute for Stroke and Dementia Research, Munich University Hospital, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany.,Department of Neurosurgery, Munich University Hospital, Munich, Germany
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Wagner A, Haag E, Joerger AK, Jost P, Combs SE, Wostrack M, Gempt J, Meyer B. Comprehensive surgical treatment strategy for spinal metastases. Sci Rep 2021; 11:7988. [PMID: 33846484 PMCID: PMC8042046 DOI: 10.1038/s41598-021-87121-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 03/24/2021] [Indexed: 12/31/2022] Open
Abstract
The management of patients with spinal metastases (SM) requires a multidisciplinary team of specialists involved in oncological care. Surgical management has evolved significantly over the recent years, which warrants reevaluation of its role in the oncological treatment concept. Any patient with a SM was screened for study inclusion. We report baseline characteristics, surgical procedures, complication rates, functional status and outcome of a large consecutive cohort undergoing surgical treatment according to an algorithm. 667 patients underwent 989 surgeries with a mean age of 65 years (min/max 20–94) between 2007 and 2018. The primary cancers mostly originated from the prostate (21.7%), breast (15.9%) and lung (10.0%). Surgical treatment consisted of dorsoventral stabilization in 69.5%, decompression without instrumentation in 12.5% and kyphoplasty in 18.0%. Overall survival reached 18.4 months (95% CI 9.8–26.9) and the median KPS increased by 10 within hospital stay. Surgical management of SMs should generally represent the first step of a conclusive treatment algorithm. The need to preserve long-term symptom control and biomechanical stability requires a surgical strategy currently not supported by level I evidence.
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Affiliation(s)
- Arthur Wagner
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Elena Haag
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
| | - Ann-Kathrin Joerger
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
| | - Philipp Jost
- Department of Hematology and Oncology, Technical University Munich School of Medicine, Munich, Germany
| | - Stephanie E Combs
- Department of Radiation Oncology, Technical University Munich School of Medicine, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts Der Isar, Technical University Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
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Ille S, Wagner A, Joerger AK, Wostrack M, Meyer B, Shiban E. Predictive Value of Transcranial Evoked Potential Monitoring for Intramedullary Spinal Cord Tumors. J Neurol Surg A Cent Eur Neurosurg 2021; 82:325-332. [PMID: 33477187 DOI: 10.1055/s-0040-1710504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Intraoperative neurophysiologic monitoring (IONM) has increased patient safety and extent of resection in patients with eloquent brain tumors. Despite its comprehensive capability for the resection of intramedullary spinal cord tumors (ISCTs), the application during the resection of these tumors is controversial. METHODS We retrospectively analyzed the resection of ISCTs in 83 consecutive cases. IONM was performed in all cases. Each patient's motor status and the McCormick scale was determined preoperatively, directly after surgery, at the day of discharge, and at long-term follow-up. RESULTS IONM was feasible in 71 cases (85.5%). Gross total resection was performed in 75 cases (90.4%). Postoperatively, patients showed new transient deficits in 12 cases (14.5%) and new permanent deficits in 12 cases (14.5%). The mean McCormick variance between baseline and long-term follow-up was - 0.08 ± 0.54. IONM's sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for the patient's motor status at the day of discharge was 75.0%, 64.7%, 45.5%, and 86.8%. It was 88.9%, 59.7%, 24.2%, and 97.4% for the motor outcome at long-term follow-up. Patients experienced postoperative complications in 15 cases (18.1%). CONCLUSION IONM, as performed in the present study, shows a high sensitivity and NPV but low specificity and PPV, particularly for the patient's motor status at the long-term follow-up. As far as practicable by a retrospective study on IONM, our results confirm IONM's usefulness for its application during the resection of ISCTs. However, these results must be approved by a prospective study.
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Affiliation(s)
- Sebastian Ille
- Department of Neurosurgery, Technical University Munich Faculty of Medicine, München, Bayern, Germany
| | - Arthur Wagner
- Department of Neurosurgery, Technical University Munich Faculty of Medicine, München, Bayern, Germany
| | - Ann Kathrin Joerger
- Department of Neurosurgery, Technical University Munich Faculty of Medicine, München, Bayern, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Technical University Munich Faculty of Medicine, München, Bayern, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Technical University Munich Faculty of Medicine, München, Bayern, Germany
| | - Ehab Shiban
- Department of Neurosurgery, Technical University Munich Faculty of Medicine, München, Bayern, Germany.,Department of Neurosurgery, University of Augsburg, Augsburg, Bayern, Germany
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Obermueller K, Hostettler I, Wagner A, Boeckh-Behrens T, Zimmer C, Gempt J, Meyer B, Wostrack M. Frequency and risk factors for postoperative aneurysm residual after microsurgical clipping. Acta Neurochir (Wien) 2021; 163:131-138. [PMID: 33216209 PMCID: PMC7778624 DOI: 10.1007/s00701-020-04639-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 10/27/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Aneurysm residuals after clipping are a well-known problem, but the course of aneurysm remnants in follow-up is not well studied. No standards or follow-up guidelines exist for treatment of aneurysm remnants. The aim of this study was to evaluate the risk factors for postoperative aneurysm remnants and their changes during follow-up. METHODS We performed a retrospective analysis of 666 aneurysms treated via clipping in our hospital from 2006 to 2016. Postoperative and follow-up angiographic data were analyzed for aneurysm remnants and regrowth. Clinical parameters and aneurysm-specific characteristics were correlated with radiological results. RESULTS The frequency of aneurysm residuals was 12% (78/666). Aneurysms located in the middle cerebral artery (p = 0.02) showed a significantly lower risk for incomplete aneurysm occlusion. Larger aneurysms with a diameter of 11-25 mm (p = 0.005) showed a significantly higher risk for incomplete aneurysm occlusion. Five patients underwent re-clipping during the same hospital stay. Remnants were stratified based on morphological characteristics into "dog ears" (n = 60) and "broad based" (n = 13). The majority of the "dog ears" stayed stable, decreased in size, or vanished during follow-up. Broad-based remnants showed a higher risk of regrowth. CONCLUSIONS A middle cerebral artery location seems to lower the risk for the incomplete clip occlusion of an aneurysm. Greater aneurysm size (11-25 mm) is associated with a postoperative aneurysm remnant. The majority of "dog-ear" remnants appear to remain stable during follow-up. In these cases, unnecessarily frequent angiographic checks could be avoided. By contrast, broad-based residuals show a higher risk of regrowth that requires close imaging controls if retreatment cannot be performed immediately.
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Affiliation(s)
- Kathrin Obermueller
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany.
| | - Isabel Hostettler
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Arthur Wagner
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Tobias Boeckh-Behrens
- Department of Neuroradiology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Claus Zimmer
- Department of Neuroradiology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University Munich, Ismaninger Straße 22, 81675, Munich, Germany
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Hostettler IC, Butenschoen VM, Meyer B, Krieg SM, Wostrack M. Single-centre study comparing surgically and conservatively treated patients with spinal cord herniation and review of the literature. Brain and Spine 2021; 1:100305. [PMID: 36247388 PMCID: PMC9560695 DOI: 10.1016/j.bas.2021.100305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 10/09/2021] [Accepted: 10/17/2021] [Indexed: 11/21/2022]
Abstract
Introduction Spinal cord herniation (SCH) is a rare cause of progressive myelopathy and Brown-Séquard-Syndrome. Research question Evaluation of functional outcome after SCH treatment compared to conservatively treated patients. Material and methods We retrospectively analysed functional outcome in SCH patients treated between 2009 and 2020. We conducted a systematic search using PubMed, MEDLINE and EMBASE to perform a pooled analysis in SCH patients. Results Our hospital cohort included 17 patients of which 9 were treated surgically. Mean age was 51.9 years, 58.8% of the patients were female. In 4/9 patients (44.4%) the neurological state remained stable after surgery. Four patients improved (44.4%) and one deteriorated after surgery (11.1%). Conservatively treated patients had a higher deterioration rate on follow-up with 3/8 patients deteriorating (37.5%). In our pooled analysis, 109/145 (75.2%) of patients improved, 32/145 (22.1%) remained stable and 4/145 patients deteriorated (2.8%). Among the available data of nine cohorts, mean recovery rate measured by the JOA score was 36.6% (SD 14.4). In our pooled multivariable model lower preoperative JOA score was associated with worse functional outcome (OR 0.86, 95%CI 0.74–0.99, p = .04). Discussion and conclusion Our data shows that patients who are treated surgically have a higher improvement rate and acceptable perioperative morbidity compared to conservatively treated patients. Lower preoperative JOA score decreases chances of improved functional outcome on follow-up. We therefore advocate early surgery for symptomatic patients. Wait and see appears outdated due to progressive impairment and decreased chances of recovery. However, it is still an option in asymptomatic incidental SCH patients. Evaluation of 17 patients with myelon herniation, 9 undergoing surgical treatment, 8 choosing conservative treatment. In the surgically treated group, 44.4% improved after surgery compared to none in the conservative group. 11.1% deteriorated in the surgically treated compared to 37.5% in the conservatively treated group. Surgically treated patients have a higher improvement rate. Lower preoperative JOA score is associated with less improvement advocating early surgery in symptomatic patients.
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Affiliation(s)
- Isabel C. Hostettler
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
- Department of Neurosurgery, Cantonal Hospital St. Gallen, Switzerland
- Corresponding author. Klinikum rechts der Isar, Department of Neurosurgery, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Vicki M. Butenschoen
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | - Sandro M. Krieg
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany
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Butenschoen VM, Wostrack M, Meyer B, Gempt J. Endoscopic Transnasal Odontoidectomy for Ventral Decompression of the Craniovertebral Junction: Surgical Technique and Clinical Outcome in a Case Series of 19 Patients. Oper Neurosurg (Hagerstown) 2020; 20:24-31. [PMID: 33094804 DOI: 10.1093/ons/opaa331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 08/05/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Abnormalities and pathologies of the craniovertebral junction as well as space-occupying lesions of the odontoid process can result in myelopathy symptoms. A staged procedure with posterior stabilization and anterior transnasal endoscopic decompression is recently considered a less invasive alternative to the transoral approach. We present a considerably large case series focused on the operative technique and the long-term neurological clinical outcome. OBJECTIVE To determine the safety and efficacy of odontoidectomy performed via an endoscopic transnasal approach. METHODS We retrospectively reviewed all patients treated in our neurosurgical department from January 2009 to January 2020. Demographics, pre- and postoperative clinical status, and operative technique and complications were extracted and analyzed. RESULTS In total, 22 transnasal operations were performed in 19 patients from January 2009 to January 2020. All but one patient underwent posterior C1-C2 instrumentation prior to the anterior transnasal computed tomography (CT)-navigated full-endoscopic decompression. The median duration of symptoms before surgery was 3 mo. Complications occurred in 1 patient who died from septic organ failure because of his initial diagnosis of osteomyelitis. Postoperative CT imaging showed sufficient decompression in 16 patients, and 3 patients underwent a transnasal endoscopic re-decompression (16%). CONCLUSION Transnasal endoscopic odontoidectomy presents a safe procedure with a satisfying clinical and radiological postoperative outcome.
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Affiliation(s)
- Vicki M Butenschoen
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University of Munich, Munich, Germany
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Wessels L, Fekonja LS, Achberger J, Dengler J, Czabanka M, Hecht N, Schneider U, Tkatschenko D, Schebesch KM, Schmidt NO, Mielke D, Hosch H, Ganslandt O, Gräwe A, Hong B, Walter J, Güresir E, Bijlenga P, Haemmerli J, Maldaner N, Marbacher S, Nurminen V, Zitek H, Dammers R, Kato N, Linfante I, Pedro MT, Wrede K, Wang WT, Wostrack M, Vajkoczy P. Diagnostic reliability of the Berlin classification for complex MCA aneurysms-usability in a series of only giant aneurysms. Acta Neurochir (Wien) 2020; 162:2753-2758. [PMID: 32929543 PMCID: PMC7550378 DOI: 10.1007/s00701-020-04565-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 09/02/2020] [Indexed: 11/29/2022]
Abstract
Background and objective The main challenge of bypass surgery of complex MCA aneurysms is not the selection of the bypass type but the initial decision-making of how to exclude the affected vessel segment from circulation. To this end, we have previously proposed a classification for complex MCA aneurysms based on the preoperative angiography. The current study aimed to validate this new classification and assess its diagnostic reliability using the giant aneurysm registry as an independent data set. Methods We reviewed the pretreatment neuroimaging of 51 patients with giant (> 2.5 cm) MCA aneurysms from 18 centers, prospectively entered into the international giant aneurysm registry. We classified the aneurysms according to our previously proposed Berlin classification for complex MCA aneurysms. To test for interrater diagnostic reliability, the data set was reviewed by four independent observers. Results We were able to classify all 51 aneurysms according to the Berlin classification for complex MCA aneurysms. Eight percent of the aneurysm were classified as type 1a, 14% as type 1b, 14% as type 2a, 24% as type 2b, 33% as type 2c, and 8% as type 3. The interrater reliability was moderate with Fleiss’s Kappa of 0.419. Conclusion The recently published Berlin classification for complex MCA aneurysms showed diagnostic reliability, independent of the observer when applied to the MCA aneurysms of the international giant aneurysm registry.
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Affiliation(s)
- Lars Wessels
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Lucius Samo Fekonja
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Johannes Achberger
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Julius Dengler
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Department of Neurosurgery, Helios Clinic, Bad Saarow, Germany
- Brandenburg Medical School Theodor Fontane, Campus Bad Saarow, Germany
| | - Marcus Czabanka
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Nils Hecht
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Ulf Schneider
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Dimitri Tkatschenko
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | | | - Nils Ole Schmidt
- Department of Neurosurgery, University of Regensburg, Regensburg, Germany
- Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Dorothee Mielke
- Department of Neurosurgery, Georg-August-University Goettingen, Göttingen, Germany
| | - Henning Hosch
- Department of Neurosurgery, Vivantes Klinikum im Friedrichshain, Berlin, Germany
| | | | - Alexander Gräwe
- Department of Neurosurgery, Unfallkrankenhaus Berlin, Germany
| | - Bujung Hong
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
| | - Jan Walter
- Department of Neurosurgery, University Hospital Jena, Jena, Germany
- Department of Neurosurgery, Medical Center Saarbrücken, Saarbrücken, Germany
| | - Erdem Güresir
- Department of Neurosurgery, University Hospital Bonn, Bonn, Germany
| | - Philippe Bijlenga
- Service de Neurochirurgie, Faculté de Médecine de Genève and Hôpitaux Universitaire de Genève, Geneva, Switzerland
| | - Julien Haemmerli
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
- Service de Neurochirurgie, Faculté de Médecine de Genève and Hôpitaux Universitaire de Genève, Geneva, Switzerland
| | - Nicolai Maldaner
- Department of Neurosurgery, University Hospital of Zurich, Zürich, Switzerland
| | - Serge Marbacher
- Department of Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland
| | - Ville Nurminen
- Neurosurgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Hynek Zitek
- Department of Neurosurgery, J. E. Purkinje University, Masaryk Hospital, Ústí nad Labem, Czech Republic
| | - Ruben Dammers
- Erasmus Stroke Center, Erasmus MC University Hospital, Rotterdam, The Netherlands
| | - Naoki Kato
- Department of Neurosurgery, Jikei University School of Medicine, Tokyo, Japan
| | - Italo Linfante
- Interventional Neuroradiology and Endovascular Neurosurgery at Miami Cardiac and Vascular Institute and Baptist Neuroscience Institute, Miami, USA
| | | | - Karsten Wrede
- Department of Neurosurgery, University of Essen, Duisburg, Germany
| | - Wei-Te Wang
- Department of Neurosurgery, Medical University, Vienna, Austria
| | - Maria Wostrack
- Department of Neurosurgery, Technical University of Munich, Munich, Germany
| | - Peter Vajkoczy
- Department of Neurosurgery and Center for Stroke Research Berlin (CSB), Charité Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
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Meyer B, Wagner A, Grassner L, Kögl N, Hartmann S, Thomé C, Wostrack M. Chiari malformation type I and basilar invagination originating from atlantoaxial instability: a literature review and critical analysis. Acta Neurochir (Wien) 2020; 162:2925. [PMID: 32895771 PMCID: PMC7550282 DOI: 10.1007/s00701-020-04557-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Arthur Wagner
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
| | - Lukas Grassner
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | - Nikolaus Kögl
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | - Sebastian Hartmann
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | - Claudius Thomé
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich School of Medicine, Ismaninger Str. 22, 81675, Munich, Germany
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Butenschoen VM, Hubertus V, Janssen IK, Onken J, Wipplinger C, Mende KC, Eicker SO, Kehl V, Thomé C, Vajkoczy P, Schaller K, Gempt J, Meyer B, Wostrack M. Surgical treatment and neurological outcome of infiltrating intramedullary astrocytoma WHO II-IV: a multicenter retrospective case series. J Neurooncol 2020; 151:181-191. [PMID: 33094355 PMCID: PMC7875841 DOI: 10.1007/s11060-020-03647-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/09/2020] [Indexed: 01/19/2023]
Abstract
Introduction Primary malignant spinal astrocytomas present rare oncological entities with limited median survival and rapid neurological deterioration. Evidence on surgical therapy, adjuvant treatment, and neurological outcome is sparse. We aim to describe the treatment algorithm and clinical features on patients with infiltrating intramedullary astrocytomas graded WHO II–IV. Methods The following is a multicentered retrospective study of patients treated for spinal malignant glioma WHO II–IV in five high-volume neurosurgical departments from 2008 to 2019. Pilocytic astrocytomas were excluded. We assessed data on surgical technique, perioperative neurological status, adjuvant oncological therapy, and clinical outcome. Results 40 patients were included (diffuse astrocytoma WHO II n = 11, anaplastic astrocytoma WHO III n = 12, WHO IV n = 17). Only 40% were functionally independent before surgery, most patients presented with moderate disability (47.5%). Most patients underwent a biopsy (n = 18, 45%) or subtotal tumor resection (n = 15, 37.5%), and 49% of the patients deteriorated after surgery. Patients with WHO III and IV tumors were treated with combined radiochemotherapy. Median overall survival (OS) was 46.5 months in WHO II, 25.7 months in WHO III, and 7.4 months in WHO IV astrocytomas. Preoperative clinical status and WHO significantly influenced the OS, and the extent of resection did not. Conclusion Infiltrating intramedullary astrocytomas WHO II–IV present rare entities with dismal prognosis. Due to the high incidence of surgery-related neurological impairment, the aim of the surgical approach should be limited to obtaining the histological tissue via a biopsy or, tumor debulking in cases with rapidly progressive severe preoperative deficits.
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Affiliation(s)
- Vicki M Butenschoen
- Department of Neurosurgery, School of Medicine, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany.
| | - Vanessa Hubertus
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Insa K Janssen
- Department of Neurosurgery, University of Geneva, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland
| | - Julia Onken
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Christoph Wipplinger
- Department of Neurosurgery, University of Innsbruck, Anichstr. 35, 6020, Innsbruck, Austria
| | - Klaus C Mende
- Department of Neurosurgery, University Hospital Hamburg Eppendorf, Martinistraße 52, 20251, Hamburg, Germany
| | - Sven O Eicker
- Department of Neurosurgery, University Hospital Hamburg Eppendorf, Martinistraße 52, 20251, Hamburg, Germany
| | - Victoria Kehl
- School of Medicine, Institute of Medical Informatics, Statistics and Epidemiology, Technical University Munich, Grillparzerstr. 18, 81675, Munich, Germany
| | - Claudius Thomé
- Department of Neurosurgery, University of Innsbruck, Anichstr. 35, 6020, Innsbruck, Austria
| | - Peter Vajkoczy
- Department of Neurosurgery, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Karl Schaller
- Department of Neurosurgery, University of Geneva, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland
| | - Jens Gempt
- Department of Neurosurgery, School of Medicine, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, School of Medicine, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, School of Medicine, Klinikum Rechts Der Isar, Technical University Munich, Ismaningerstr. 22, 81675, Munich, Germany
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Dengler J, Rüfenacht D, Meyer B, Rohde V, Endres M, Lenga P, Uttinger K, Rücker V, Wostrack M, Kursumovic A, Hong B, Mielke D, Schmidt NO, Burkhardt JK, Bijlenga P, Boccardi E, Cognard C, Heuschmann PU, Vajkoczy P. Giant intracranial aneurysms: natural history and 1-year case fatality after endovascular or surgical treatment. J Neurosurg 2019; 134:49-57. [PMID: 31812141 DOI: 10.3171/2019.8.jns183078] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 08/21/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Clinical evidence on giant intracranial aneurysms (GIAs), intracranial aneurysms with a diameter of at least 25 mm, is limited. The authors aimed to investigate the natural history, case fatality, and treatment outcomes of ruptured and unruptured GIAs. METHODS In this international observational registry study, patients with a ruptured or unruptured GIA received conservative management (CM), surgical management (SM), or endovascular management (EM). The authors investigated rupture rates and case fatality. RESULTS The retrospective cohort comprised 219 patients with GIAs (21.9% ruptured GIAs and 78.1% unruptured GIAs) whose index hospitalization occurred between January 2006 and November 2016. The index hospitalization in the prospective cohort (362 patients with GIAs [17.1% ruptured and 82.9% unruptured]) occurred between December 2008 and February 2017. In the retrospective cohort, the risk ratio for death at a mean follow-up of 4.8 years (SD 2.2 years) after CM, compared with EM and SM, was 1.63 (95% CI 1.23-2.16) in ruptured GIAs and 3.96 (95% CI 2.57-6.11) in unruptured GIAs. In the prospective cohort, the 1-year case fatality in ruptured GIAs/unruptured GIAs was 100%/22.0% during CM, 36.0%/3.0% after SM, and 39.0%/12.0% after EM. Corresponding 1-year rupture rates in unruptured GIAs were 25.0% during CM, 1.2% after SM, and 2.5% after EM. In unruptured GIAs, the HR for death within the 1st year in patients with posterior circulation GIAs was 6.7 (95% CI 1.5-30.4, p < 0.01), with patients with a GIA at the supraclinoid internal carotid artery as reference. Different sizes of unruptured GIAs were not associated with 1-year case fatality. CONCLUSIONS Rupture rates for unruptured GIAs were high, and the natural history and treatment outcomes for ruptured GIAs were poor. Patients undergoing SM or EM showed lower case fatality and rupture rates than those undergoing CM. This difference in outcome may in part be influenced by patients in the CM group having been found poor candidates for SM or EM.Clinical trial registration no.: NCT02066493 (clinicaltrials.gov).
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Affiliation(s)
- Julius Dengler
- 1Department of Neurosurgery, Charité-Berlin.,2Department of Neurosurgery, Helios Clinic, Bad Saarow.,3Brandenburg Medical School Theodor Fontane, Campus Bad Saarow, Germany
| | - Daniel Rüfenacht
- 4Department of Neuroradiology, Clinic Hirslanden, Zurich, Switzerland
| | - Bernhard Meyer
- 5Department of Neurosurgery, Technical University of Munich
| | - Veit Rohde
- 6Department of Neurosurgery, Georg-August-University Goettingen
| | - Matthias Endres
- 7Department of Neurology, Charité-Berlin.,8Center for Stroke Research, Berlin
| | | | | | - Viktoria Rücker
- 9Institute of Clinical Epidemiology and Biometry, University of Würzburg
| | - Maria Wostrack
- 5Department of Neurosurgery, Technical University of Munich
| | | | - Bujung Hong
- 11Department of Neurosurgery, Hannover Medical School, Hannover
| | - Dorothee Mielke
- 6Department of Neurosurgery, Georg-August-University Goettingen
| | - Nils Ole Schmidt
- 12Department of Neurosurgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | | | - Philippe Bijlenga
- 14Department of Neurosurgery, University Hospital Geneva, Switzerland
| | - Edoardo Boccardi
- 15Department of Neuroradiology, Metropolitan Hospital Niguarda, Milan, Italy
| | | | - Peter U Heuschmann
- 9Institute of Clinical Epidemiology and Biometry, University of Würzburg.,17Comprehensive Heart Failure Center Würzburg, University of Würzburg; and.,18Clinical Trial Center Würzburg, University Hospital Würzburg, Germany
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Zanello M, Goodden JR, Colle H, Wager M, Hamer PCDW, Smits A, Bello L, Tate M, Spena G, Bresson D, Capelle L, Robles SG, Sarubbo S, Rydenhag B, Martino J, Meyer B, Fontaine D, Reyns N, Schichor C, Metellus P, Colle D, Robert E, Noens B, Muller P, Rossi M, Nibali MC, Papagno C, Galbarritu L, de Gopegui ER, Chioffi F, Bucheli C, Krieg SM, Wostrack M, Yusupov N, Visser V, Baaijen JC, Roux A, Dezamis E, Mandonnet E, Corns R, Duffau H, Pallud J. Predictors of Epileptic Seizures and Ability to Work in Supratentorial Cavernous Angioma Located Within Eloquent Brain Areas. Neurosurgery 2019; 85:E702-E713. [DOI: 10.1093/neuros/nyz063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 02/10/2019] [Indexed: 01/01/2023] Open
Abstract
Abstract
BACKGROUND
The postoperative outcomes and the predictors of seizure control are poorly studied for supratentorial cavernous angiomas (CA) within or close to the eloquent brain area.
OBJECTIVE
To assess the predictors of preoperative seizure control, postoperative seizure control, and postoperative ability to work, and the safety of the surgery.
METHODS
Multicenter international retrospective cohort analysis of adult patients benefitting from a functional-based surgical resection with intraoperative functional brain mapping for a supratentorial CA within or close to eloquent brain areas.
RESULTS
A total of 109 patients (66.1% women; mean age 38.4 ± 12.5 yr), were studied. Age >38 yr (odds ratio [OR], 7.33; 95% confidence interval [CI], 1.53-35.19; P = .013) and time to surgery > 12 mo (OR, 18.21; 95% CI, 1.11-296.55; P = .042) are independent predictors of uncontrolled seizures at the time of surgery. Focal deficit (OR, 10.25; 95% CI, 3.16-33.28; P < .001) is an independent predictor of inability to work at the time of surgery. History of epileptic seizures at the time of surgery (OR, 7.61; 95% CI, 1.67-85.42; P = .003) and partial resection of the CA and/or of the hemosiderin rim (OR, 12.02; 95% CI, 3.01-48.13; P < .001) are independent predictors of uncontrolled seizures postoperatively. Inability to work at the time of surgery (OR, 19.54; 95% CI, 1.90-425.48; P = .050), Karnofsky Performance Status ≤ 70 (OR, 51.20; 95% CI, 1.20-2175.37; P = .039), uncontrolled seizures postoperatively (OR, 105.33; 95% CI, 4.32-2566.27; P = .004), and worsening of cognitive functions postoperatively (OR, 13.71; 95% CI, 1.06-176.66; P = .045) are independent predictors of inability to work postoperatively.
CONCLUSION
The functional-based resection using intraoperative functional brain mapping allows safe resection of CA and the peripheral hemosiderin rim located within or close to eloquent brain areas.
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Affiliation(s)
- Marc Zanello
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France
- Sorbonne Paris Cité, Paris Descartes University, Paris, France
- Inserm, U894, IMA-Brain, Centre de Psychiatrie et Neurosciences, Paris, France
| | - John R Goodden
- Department of Neurosurgery, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Henry Colle
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Michel Wager
- Department of Neurosurgery, La Milétrie University Hospital, Poitiers, France
| | | | - Anja Smits
- Institute of Neuroscience and Physiology, Department of Clinical Neuroscience, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Neuroscience, Neurology, Uppsala University, University Hospital, Uppsala, Sweden
| | - Lorenzo Bello
- NeuroOncological Surgery Unit, Humanitas Research Hospital, Milano, Italy
| | - Matthew Tate
- Departments of Neurological Surgery and Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | | | - Damien Bresson
- Department of Neurosurgery, Lariboisière Hospital, Paris, France
| | - Laurent Capelle
- Department of Neurosurgery, Pitié-Salpêtrière University Hospital, Paris, France
| | - Santiago Gil Robles
- Department of Neurosurgery, Hospital Universitario Quironsalud, Madrid, Spain
| | - Silvio Sarubbo
- Division of Neurosurgery, Structural and Functional Connectivity Lab Project, “S. Chiara” Hospital, APSS Trento, Italy
| | - Bertil Rydenhag
- Institute of Neuroscience and Physiology, Department of Clinical Neuroscience, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Juan Martino
- Department of Neurological Surgery, Hospital Universitario Marqués de Valdecilla (HUMV) and Fundación Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Denys Fontaine
- Department of Neurosurgery, Nice University Hospital, Nice, France
| | - Nicolas Reyns
- Department of Neurosurgery, Roger-Salengro University Hospital, Lille, France
| | - Christian Schichor
- Neurosurgical Clinic, University of Munich - Campus Grosshadern, Munich, Germany
| | - Philippe Metellus
- Department of Neurosurgery, Clairval Private Hospital, Marseille, France
| | - David Colle
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Erik Robert
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Bonny Noens
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Peter Muller
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Marco Rossi
- NeuroOncological Surgery Unit, Humanitas Research Hospital, Milano, Italy
| | - Marco Conti Nibali
- NeuroOncological Surgery Unit, Humanitas Research Hospital, Milano, Italy
| | - Costanza Papagno
- Center for Neurocognitive Rehabilitation (CeRiN), CIMeC, University of Trento, Trento, Italy
| | - Lara Galbarritu
- Neurosurgery, Cruces University Hospital, Barakaldo, Basque Country, Spain
| | | | - Franco Chioffi
- Division of Neurosurgery, Structural and Functional Connectivity Lab Project, “S. Chiara” Hospital, APSS Trento, Italy
| | - Carlos Bucheli
- Department of Neurological Surgery, Hospital Universitario Marqués de Valdecilla (HUMV) and Fundación Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Sandro M Krieg
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Natan Yusupov
- Neurosurgical Clinic, University of Munich - Campus Grosshadern, Munich, Germany
| | - Victoria Visser
- Neurosurgical Center Amsterdam, VU University Medical Center, Amsterdam, Netherlands
| | - Johannes C Baaijen
- Neurosurgical Center Amsterdam, VU University Medical Center, Amsterdam, Netherlands
| | - Alexandre Roux
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France
- Sorbonne Paris Cité, Paris Descartes University, Paris, France
- Inserm, U894, IMA-Brain, Centre de Psychiatrie et Neurosciences, Paris, France
| | - Edouard Dezamis
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France
- Sorbonne Paris Cité, Paris Descartes University, Paris, France
- Inserm, U894, IMA-Brain, Centre de Psychiatrie et Neurosciences, Paris, France
| | - Emmanuel Mandonnet
- Institute of Neuroscience and Physiology, Department of Clinical Neuroscience, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Robert Corns
- Department of Neurosurgery, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Hugues Duffau
- Neurosurgery Department, Hôpital Gui-de-Chauliac, Montpellier University Medical Center, Montpellier, France
| | - Johan Pallud
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France
- Sorbonne Paris Cité, Paris Descartes University, Paris, France
- Inserm, U894, IMA-Brain, Centre de Psychiatrie et Neurosciences, Paris, France
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Zanello M, Meyer B, Still M, Goodden JR, Colle H, Schichor C, Bello L, Wager M, Smits A, Rydenhag B, Tate M, Metellus P, Hamer PDW, Spena G, Capelle L, Mandonnet E, Robles SG, Sarubbo S, Martino González J, Fontaine D, Reyns N, Krieg SM, Huberfeld G, Wostrack M, Colle D, Robert E, Noens B, Muller P, Yusupov N, Rossi M, Conti Nibali M, Papagno C, Visser V, Baaijen H, Galbarritu L, Chioffi F, Bucheli C, Roux A, Dezamis E, Duffau H, Pallud J. Surgical resection of cavernous angioma located within eloquent brain areas: International survey of the practical management among 19 specialized centers. Seizure 2019; 69:31-40. [PMID: 30959423 DOI: 10.1016/j.seizure.2019.03.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/02/2019] [Accepted: 03/27/2019] [Indexed: 10/27/2022] Open
Abstract
PURPOSE The practical management of cavernous angioma located within eloquent brain area before, during and after surgical resection is poorly documented. We assessed the practical pre-operative, intra-operative, and post-operative management of cavernous angioma located within eloquent brain area. METHOD An online survey composed of 61 items was sent to 26 centers to establish a multicenter international retrospective cohort of adult patients who underwent a surgical resection as the first-line treatment of a supratentorial cavernous angioma located within or close to eloquent brain area. RESULTS 272 patients from 19 centers (mean 13.6 ± 16.7 per center) from eight countries were included. The pre-operative management varied significantly between centers and countries regarding the pre-operative functional assessment, the pre-operative epileptological assessment, the first given antiepileptic drug, and the time to surgery. The intra-operative environment varied significantly between centers and countries regarding the use of imaging systems, the use of functional mapping with direct electrostimulations, the extent of resection of the hemosiderin rim, the realization of a post-operative functional assessment, and the time to post-operative functional assessment. The present survey found a post-operative improvement, as compared to pre-operative evaluations, of the functional status, the ability to work, and the seizure control. CONCLUSIONS We observed a variety of practice between centers and countries regarding the management of cavernous angioma located within eloquent regions. Multicentric prospective studies are required to solve relevant questions regarding the management of cavernous angioma-related seizures, the timing of surgery, and the optimal extent of hemosiderin rim resection.
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Affiliation(s)
- Marc Zanello
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France; Paris Descartes University, Sorbonne Paris Cité, Paris, France; UMR 1266 INSERM, IMA-BRAIN, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Bernhard Meyer
- Department of Neurosurgery, Technical University of Munich School of Medicine, Munich, Germany
| | - Megan Still
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France; Paris Descartes University, Sorbonne Paris Cité, Paris, France; UMR 1266 INSERM, IMA-BRAIN, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - John R Goodden
- Department of Neurosurgery, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Henry Colle
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Christian Schichor
- Neurosurgical Clinic, University of Munich - Campus Grosshadern, Munich, Germany
| | - Lorenzo Bello
- Department of Neurosurgery, Humanitas Hospital, Milan, Italy
| | - Michel Wager
- Department of Neurosurgery, La Milétrie University Hospital, 86021 Poitiers, France
| | - Anja Smits
- Department of Clinical Neuroscience, Sahlgrenska Academy, Gothenburg, Sweden
| | - Bertil Rydenhag
- Department of Clinical Neuroscience, Sahlgrenska Academy, Gothenburg, Sweden
| | - Matthew Tate
- Department of Neurosurgery, Northwestern Memorial Hospital, Chicago, USA
| | - Philippe Metellus
- Department of Neurosurgery, Clairval Private Hospital, Marseille, France
| | - Philip De Witt Hamer
- Department of Neurosurgery, VU University Medical Center, Amsterdam, Netherlands
| | | | - Laurent Capelle
- Department of Neurosurgery, Pitié-Salpêtrière University Hospital, Paris, France
| | | | - Santiago Gil Robles
- Department of Neurosurgery, Hospital Universitario Quironsalud, Madrid, Spain
| | - Silvio Sarubbo
- Department of Neurosurgery, Azienda Provinciale per i Servizi Sanitari, Trento, Italy
| | - Juan Martino González
- Department of Neurosurgery, Marqués de Valdecilla University Hospital, Santander, Spain
| | - Denys Fontaine
- Department of Neurosurgery, Nice University Hospital, Nice, France
| | - Nicolas Reyns
- Department of Neurosurgery, Roger-Salengro University Hospital, Lille, France
| | - Sandro M Krieg
- Department of Neurosurgery, Technical University of Munich School of Medicine, Munich, Germany
| | - Gilles Huberfeld
- Department of Neurophysiology, Pitié-Salpêtrière Hospital, UPMC, Sorbonne Université, Paris, France; Infantile Epilepsy and Brain Plasticity, INSERM U1129 Paris Descartes University, PRES Sorbonne, Paris, France; Neuroglial Interactions in Cerebral Physiopathology, Center for Interdisciplinary Research in Biology, Collège de France, CNRS UMR 7241, INSERM U1050, Labex Memolife, PSL Research University, Paris, France
| | - Maria Wostrack
- Department of Neurosurgery, Technical University of Munich School of Medicine, Munich, Germany
| | - David Colle
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Erik Robert
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Bonny Noens
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Peter Muller
- Department of Neurosurgery, St Lucas Hospital, Gand, Belgium
| | - Natan Yusupov
- Neurosurgical Clinic, University of Munich - Campus Grosshadern, Munich, Germany
| | - Marco Rossi
- Department of Neurosurgery, Humanitas Hospital, Milan, Italy
| | | | | | - Victoria Visser
- Department of Neurosurgery, VU University Medical Center, Amsterdam, Netherlands
| | - Hans Baaijen
- Department of Neurosurgery, VU University Medical Center, Amsterdam, Netherlands
| | - Lara Galbarritu
- Department of Neurosurgery, Hospital Universitario Quironsalud, Madrid, Spain
| | - Franco Chioffi
- Department of Neurosurgery, Azienda Provinciale per i Servizi Sanitari, Trento, Italy
| | - Carlos Bucheli
- Department of Neurosurgery, Marqués de Valdecilla University Hospital, Santander, Spain
| | - Alexandre Roux
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France; Paris Descartes University, Sorbonne Paris Cité, Paris, France; UMR 1266 INSERM, IMA-BRAIN, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Edouard Dezamis
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France; Paris Descartes University, Sorbonne Paris Cité, Paris, France; UMR 1266 INSERM, IMA-BRAIN, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Hugues Duffau
- Neurosurgery Department, Hôpital Gui-de-Chauliac, Montpellier University Medical Center, 34000 Montpellier, France
| | - Johan Pallud
- Department of Neurosurgery, Sainte-Anne Hospital, Paris, France; Paris Descartes University, Sorbonne Paris Cité, Paris, France; UMR 1266 INSERM, IMA-BRAIN, Institute of Psychiatry and Neurosciences of Paris, Paris, France.
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Hedderich DM, Reess TJ, Thaler M, Berndt MT, Moench S, Lehm M, Andrisan T, Maegerlein C, Meyer B, Ryang YM, Zimmer C, Wostrack M, Friedrich B. Hippocampus subfield volumetry after microsurgical or endovascular treatment of intracranial aneurysms-an explorative study. Eur Radiol Exp 2019; 3:13. [PMID: 30900111 PMCID: PMC6428873 DOI: 10.1186/s41747-019-0092-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 02/13/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To study hippocampus subfield volumes in patients after microsurgical clipping (MC) and/or endovascular coiling (EC) of intracranial aneurysms. METHODS Hippocampus subfield volumetry was performed using FreeSurfer v6.0 in 51 patients (35 females, mean age 54.9 ± 11.9 years, range 24-78 years). Visual inspection of image and segmentation quality was performed prior to statistical analyses. Multiple regression analysis, controlled for age, sex, and side of treatment, was used to assess the impact of prior MC and history of subarachnoid haemorrhage (SAH) on hippocampus subfield volumes (cornu ammonis (CA)-2/3, CA-4, subiculum). Partial correlation analyses were used to assess effect of multiple treatments on hippocampus subfield volumes. RESULTS Prior MC was significantly associated with lower hippocampal subfield volumes in MC patients for right and left CA-2/3 (β = -22.32 [-40.18, -4.45]; p = 0.016 and β = -20.03 [-39.38, -0.68]; p = 0.043) and right CA-4 (β = -17.00 [-33.86, 0.12]; p = 0.048). History of SAH was not significantly associated with hippocampal subfield volumes. We observed a higher disease burden in the MC cohort. The number of aneurysms correlated with right-sided hippocampal subfield volumes while the number of treatment interventions did not. CONCLUSION In this explorative study, we found that history of MC was significantly associated with lower volumes in distinct hippocampal subfields, which may be a consequence of a more extensive treatment. This could indicate specific atrophy of CA-2/3 after MC and should motivate hippocampal subfield assessment in larger cohorts.
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Affiliation(s)
- Dennis M Hedderich
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany.
| | - Tim J Reess
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany.,TUM-Neuroimaging Center, Technical University of Munich, Munich, Germany
| | - Matthias Thaler
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Maria T Berndt
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Sebastian Moench
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Manuel Lehm
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Tiberiu Andrisan
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Christian Maegerlein
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Yu-Mi Ryang
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Claus Zimmer
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Benjamin Friedrich
- Department of Diagnostic and Interventional Neuroradiology, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
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41
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Onken J, Obermüller K, Staub-Bartelt F, Meyer B, Vajkoczy P, Wostrack M. Surgical management of spinal meningiomas: focus on unilateral posterior approach and anterior localization. J Neurosurg Spine 2019; 30:308-313. [DOI: 10.3171/2018.8.spine18198] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 08/06/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVESpinal meningiomas (sMNGs) are relatively rare in comparison to intracranial MNGs. sMNGs localized anterior to the denticulate ligament (aMNGs) represent a surgically challenging subgroup. A high perioperative complication rate due to the need for complex surgical approaches has been described. In the present study, the authors report on their surgical experience that involves two institutions in which 207 patients underwent surgery for sMNGs. Special focus was placed on patients with aMNGs that were treated via a unilateral posterior approach (ULPA).METHODSBetween 2005 and 2017, 207 patients underwent resection of sMNGs at one of two institutions. The following characteristics were assessed: tumor size and localization, surgical approach, duration of surgery, grade of resection, peri- and postoperative complication rates, and neurological outcome. Data were compared between the subgroups of patients according to the lesion’s relationship to the denticulate ligament and to surgical approach.RESULTSThe authors identified 48 patients with aMNGs, 86 patients with lateral MNGs, and 76 patients with posterior MNGs (pMNGs). Overall, 66.6% of aMNGs and 64% of pMNGs were reached via a ULPA. aMNGs that were approached via a ULPA showed reduced duration of surgery (131 vs 224 minutes, p < 0.0001) and had surgical complication rates and neurological outcomes comparable to those of lesions that were approached via a bilateral approach. No significant differences in complication rate, outcomes, and extent of resection were seen between aMNGs and pMNGs.CONCLUSIONSThe duration of surgery, extent of resection, and outcomes are comparable between aMNGs and pMNGs when removed via a ULPA. Thus, ULPA represents a safe route to achieve a gross-total resection, even in cases of aMNG.
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Affiliation(s)
- Julia Onken
- 1Department of Neurosurgery, Charité—Universitätsmedizin Berlin
- 2Berlin School of Integrative Oncology (BSIO), Berlin; and
| | - Kathrin Obermüller
- 3Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Germany
| | | | - Bernhard Meyer
- 3Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Germany
| | - Peter Vajkoczy
- 1Department of Neurosurgery, Charité—Universitätsmedizin Berlin
| | - Maria Wostrack
- 3Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Germany
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42
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Wostrack M, Ringel F, Eicker SO, Jägersberg M, Schaller K, Kerschbaumer J, Thomé C, Shiban E, Stoffel M, Friedrich B, Kehl V, Vajkoczy P, Meyer B, Onken J. Spinal ependymoma in adults: a multicenter investigation of surgical outcome and progression-free survival. J Neurosurg Spine 2018. [PMID: 29521579 DOI: 10.3171/2017.9.spine17494] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Spinal ependymomas are rare glial neoplasms. Because their incidence is low, only a few larger studies have investigated this condition. There are no clear data concerning prognosis and therapy. The aim of the study was to describe the natural history, perioperative clinical course, and local tumor control of adult patients with spinal ependymomas who were surgically treated under modern treatment standards. METHODS The authors performed a multicenter retrospective study. They identified 158 adult patients with spinal ependymomas who had received surgical treatment between January 2006 and June 2013. The authors analyzed the clinical and histological aspects of these cases to identify the predictive factors for postoperative morbidity, tumor resectability, and recurrence. RESULTS Gross-total resection (GTR) was achieved in 80% of cases. At discharge, 37% of the patients showed a neurological decline. During follow-up the majority recovered, whereas 76% showed at least preoperative status. Permanent functional deterioration remained in 2% of the patients. Transient deficits were more frequent in patients with cervically located ependymomas (p = 0.004) and in older patients (p = 0.002). Permanent deficits were independently predicted only by older age (p = 0.026). Tumor progression was observed in 15 cases. The 5-year progression-free survival (PFS) rate was 80%, and GTR (p = 0.037), WHO grade II (p = 0.009), and low Ki-67 index (p = 0.005) were independent prognostic factors for PFS. Adjuvant radiation therapy was performed in 15 cases. No statistically relevant effects of radiation therapy were observed among patients with incompletely resected ependymomas (p = 0.079). CONCLUSIONS Due to its beneficial value for PFS, GTR is important in the treatment of spinal ependymoma. Gross-total resection is feasible in the majority of cases, with acceptable rates of permanent deficits. Also, Ki-67 appears to be an important prognostic factor and should be included in a grading scheme for spinal ependymomas.
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Affiliation(s)
- Maria Wostrack
- 1Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich
| | - Florian Ringel
- 1Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich.,8Department of Neurosurgery, University Clinic Johannes Gutenberg-University Mainz
| | - Sven O Eicker
- 4Department of Neurosurgery, University Medical Center Hamburg-Eppendorf
| | - Max Jägersberg
- 3Department of Neurosurgery, University of Geneva Medical Center, Geneva, Switzerland; and
| | - Karl Schaller
- 3Department of Neurosurgery, University of Geneva Medical Center, Geneva, Switzerland; and
| | | | - Claudius Thomé
- 5Department of Neurosurgery, Medical University Innsbruck, Austria
| | - Ehab Shiban
- 1Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich
| | - Michael Stoffel
- 1Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich.,9Department of Neurosurgery, Helios Clinic, Krefeld, Germany
| | - Benjamin Friedrich
- 7Department of Neuroradiology, Klinikum rechts der Isar, Technical University of Munich
| | - Victoria Kehl
- 6Institute for Medical Statistics and Epidemiology, Technical University of Munich
| | | | - Bernhard Meyer
- 1Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich
| | - Julia Onken
- 2Department of Neurosurgery, Charité University, Berlin
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43
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Lehmberg J, Shiban E, Wostrack M, Prothmann S, Bernhard M. Surgical Flow Diversion for Complex Posterior Circulation Aneurysms. Skull Base Surg 2017. [DOI: 10.1055/s-0037-1600799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jens Lehmberg
- Department of Neurosurgery, Technical University of Munich, Munich, Germany
| | - Ehab Shiban
- Department of Neurosurgery, Technical University of Munich, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Technical University of Munich, Munich, Germany
| | - Sacha Prothmann
- Division of Neuroradiology, Department of Radiology, Technical University of Munich, Munich, Germany
| | - Meyer Bernhard
- Department of Neurosurgery, Technical University of Munich, Munich, Germany
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44
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Lehmberg J, Wostrack M, Prothmann S, Meyer B. Surgical Flow Diversion for Complex Posterior Circulation Aneurysms. Skull Base Surg 2016. [DOI: 10.1055/s-0036-1592586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Shiban E, Török E, Wostrack M, Meyer B, Lehmberg J. The far-lateral approach: destruction of the condyle does not necessarily result in clinically evident craniovertebral junction instability. J Neurosurg 2016; 125:196-201. [DOI: 10.3171/2015.5.jns15176] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT
Far-lateral or extreme-lateral approaches to the skull base allow access to the lateral and anterior portion of the lower posterior fossa and foramen magnum. These approaches include a certain extent of resection of the condyle, which potentially results in craniocervical junction instability. However, it is debated what extent of condyle resection is safe and at what extent of condyle resection an occipitocervical fusion should be recommended. The authors reviewed cases of condyle resection/destruction with regard to necessity of occipitocervical fusion.
METHODS
The authors conducted a retrospective analysis of all patients in whom a far- or extreme-lateral approach including condyle resection of various extents was performed between January 2007 and December 2014.
RESULTS
Twenty-one consecutive patients who had undergone a unilateral far- or extreme-lateral approach including condyle resection were identified. There were 10 male and 11 female patients with a median age of 61 years (range 22–83 years). The extent of condyle resection was 25% or less in 15 cases, 50% in 1 case, and greater than 75% in 5 cases. None of the patients who underwent condyle resection of 50% or less was placed in a collar postoperatively or developed neck pain. Two of the patients with condyle resection of greater than 75% were placed in a semirigid collar for a period of 3 months postoperatively and remained free of pain after this period. At last follow-up none of the cases showed any clear sign of radiological or clinical instability.
CONCLUSIONS
The unilateral resection or destruction of the condyle does not necessarily result in craniocervical instability. No evident instability was encountered even in the 5 patients who underwent removal of more than 75% of the condyle. The far- or extreme-lateral approach may be safer than generally accepted with regard to craniocervical instability as generally considered and may not compel fusion in all cases with condylar resection of more than 75%.
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Shiban E, Gapon K, Wostrack M, Meyer B, Lehmberg J. Clinical and radiological outcome after anterior cervical discectomy and fusion with stand-alone empty polyetheretherketone (PEEK) cages. Acta Neurochir (Wien) 2016; 158:349-55. [PMID: 26620448 DOI: 10.1007/s00701-015-2630-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 10/28/2015] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate long-term results after one-, two-, and three-level anterior cervical discectomy and fusion (ACDF) with stand-alone empty polyetheretherketone (PEEK) cages. METHODS We performed a retrospective review of a consecutive patient cohort that underwent ACDF with stand-alone empty PEEK cages between 2007 and 2010 with a minimum follow-up of 12 months. Radiographic follow-up included static and flexion/extension radiographs. Changes in the operated segments were measured and compared to radiographs directly after surgery. Clinical outcome was evaluated by a physical examination, pain visual analog scale (VAS), and health-related quality of life (HRQL) using the EuroQOL questionnaire (EQ-5D). Analysis of associations between fusion, subsidence, cervical alignment, and clinical outcome parameters were performed. RESULTS Of 407 consecutive cases, 318 met all inclusion criteria. Follow-up data were obtained from 265 (83 %) cases. The mean age at presentation was 55 years and 139 patients were male (52 %). In the sample, 127, 125, and 13 patients had one-, two-, and three-level surgeries, respectively; 132 (49 %) presented with spondylotic cervical myelopathy and 133 (50 %) with cervical radiculopathy. Fusion was achieved in 85, 95, and 94 % of segments in one-, two-, and three-level surgeries, respectively. Non-fusion was associated with higher VAS pain levels. Radiographic adjacent segment disease (ASD) was observed in 20, 29, and 15 % in one-, two-, and three-level surgeries, respectively. ASD was associated with lower HRQL. Subsidence was observed in 25, 27, and 15 % of segments in one-, two-, and three-level surgeries, respectively. However, this had no influence on clinical outcome. Follow-up operations for symptomatic adjacent disc disease and implant failure at index level were needed in 16 (6 %) and four (1.5 %) cases, respectively. Younger age was associated with better clinical outcome. Multilevel surgery favored better myelopathy outcomes and fusion reduced overall pain. ASD worsened EuroQOL-Index values. Worsening of the cervical alignment induced arm pain. CONCLUSIONS One- and two-level ACDF with stand-alone empty PEEK cages achieved very high fusion rates and a low rate of follow-up operations. The rate of good clinical outcome is highly satisfactory. Younger age was the single most influential factor associated with better clinical outcome.
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Affiliation(s)
- Ehab Shiban
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Karina Gapon
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Jens Lehmberg
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
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Obermüller T, Wostrack M, Shiban E, Pape H, Harmening K, Friedrich B, Prothmann S, Meyer B, Ringel F. Vertebral artery injury during foraminal decompression in "low-risk" cervical spine surgery: incidence and management. Acta Neurochir (Wien) 2015; 157:1941-5. [PMID: 26416610 DOI: 10.1007/s00701-015-2594-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 09/15/2015] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Vertebral artery injury (VAI) during foraminal decompression in cervical spine surgery in the absence of repositioning or screw stabilization is rare. Without immediate recognition and treatment, it may have disastrous consequences. We aimed to describe the incidence and management of iatrogenic VAI in low-risk cervical spine surgery. MATERIALS AND METHODS The records of all patients who underwent surgical procedures of the cervical spine between January 2007 and May 2012 were retrospectively consecutively evaluated. Anterior cervical discectomy and fusion or arthroplasty as well as dorsal foraminal decompression through the Frykholm approach in degenerative diseases were defined as low-risk surgeries (n = 992). RESULTS VAI occurred in 0.3 % (n = 3) of 992 procedures: in one case during a dorsal foraminal decompression, and in two cases during the anterior cervical discectomy and fusion (ACDF) of two or four levels, respectively. In the first case, the VAI was intraoperatively misdiagnosed. Despite an initially uneventful course, the patient suffered hemorrhage from a pseudoaneurysm of the injured VA 1 month after surgery. The aneurysm was successfully occluded by endovascular coiling. In both ACDF cases, angiography and endovascular stenting of the lacerated segment proceeded immediately after the surgery. All three patients suffered no permanent deterioration. CONCLUSIONS In a high-volume surgical center, the incidence of VAI during low-risk cervical spine surgery is extremely low, comprising 0.3 % of all cases. The major risks are delayed sequels of the vessel wall laceration. In cases of VAI, immediate angiographic diagnostics and generous indications for endovascular treatment are obligatory.
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Affiliation(s)
- Thomas Obermüller
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Ehab Shiban
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Haiko Pape
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Kathrin Harmening
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Benjamin Friedrich
- Department of Neuroradiology, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Sascha Prothmann
- Department of Neuroradiology, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Florian Ringel
- Department of Neurosurgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, Germany.
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Shiban E, Zerr M, Huber T, Boeck-Behrends T, Wostrack M, Ringel F, Meyer B, Lehmberg J. Poor diagnostic accuracy of transcranial motor and somatosensory evoked potential monitoring during brainstem cavernoma resection. Acta Neurochir (Wien) 2015; 157:1963-9; discussion 1969. [PMID: 26347046 DOI: 10.1007/s00701-015-2573-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 08/27/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Microsurgical resection of brainstem cavernomas carries a high risk of new postoperative morbidity such as cranial nerve, motor and sensory deficits as well as functional deterioration. Intraoperative monitoring is used to avoid impending damage to these highly eloquent tracts. However, data on neurophysiological monitoring during resection of brainstem cavernomas are lacking. METHODS Consecutive patients with brainstem cavernomas who underwent surgical removal from June 2007 to December 2014 were retrospectively analysed. Transcranial motor-evoked potential (MEP) and somatosensory-evoked potential (SSEP) monitorings were performed in all cases. The evoked potential (EP) monitoring data were reviewed and related to new postoperative motor and sensory deficits and postoperative imaging. Clinical outcomes were assessed during follow-up. RESULTS Twenty-six consecutive patients with brainstem cavernoma underwent 27 surgical resections within this study. MEP and SSEP monitoring was technically feasible in 26 and 27 cases, respectively. MEP sensitivity and specificity were 33 and 88 %, respectively. MEP positive and negative predictive values were 28 and 78 %, respectively. SSEP sensitivity and specificity were 20 and 81 %, respectively. SSEP positive and negative predictive values were 20 and 81 %, respectively. CONCLUSION In continuous MEP and SSEP monitoring during brainstem cavernoma microsurgery, high rates of false-positive and -negative results are encountered, resulting in low positive and relatively high negative predictive values. Careful interpretation of the intraoperative monitoring results is essential in order to avoid potentially unjustified termination of brainstem cavernoma resection.
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Affiliation(s)
- Ehab Shiban
- Department of Neurosurgery, Technische Universität München, Munich, Germany.
| | - Marina Zerr
- Department of Neurosurgery, Technische Universität München, Munich, Germany.
| | - Thomas Huber
- Department of Radiology, Division of Neuroradiology, Technische Universität München, Munich, Germany.
| | - Tobias Boeck-Behrends
- Department of Radiology, Division of Neuroradiology, Technische Universität München, Munich, Germany.
| | - Maria Wostrack
- Department of Neurosurgery, Technische Universität München, Munich, Germany.
| | - Florian Ringel
- Department of Neurosurgery, Technische Universität München, Munich, Germany.
| | - Bernhard Meyer
- Department of Neurosurgery, Technische Universität München, Munich, Germany.
| | - Jens Lehmberg
- Department of Neurosurgery, Technische Universität München, Munich, Germany.
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Shiban E, Krieg SM, Haller B, Buchmann N, Obermueller T, Boeckh-Behrens T, Wostrack M, Meyer B, Ringel F. Intraoperative subcortical motor evoked potential stimulation: how close is the corticospinal tract? J Neurosurg 2015; 123:711-20. [DOI: 10.3171/2014.10.jns141289] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT
Subcortical stimulation is a method used to evaluate the distance from the stimulation site to the corticospinal tract (CST) and to decide whether the resection of an adjacent lesion should be terminated to prevent damage to the CST. However, the correlation between stimulation intensity and distance to the CST has not yet been clearly assessed. The objective of this study was to investigate the appropriate correlation between the subcortical stimulation pattern and the distance to the CST.
METHODS
Monopolar subcortical motor evoked potential (MEP) mapping was performed in addition to continuous MEP monitoring in 37 consecutive patients with lesions located in motor-eloquent locations. The proximity of the resection cavity to the CST was identified by subcortical MEP mapping. At the end of resection, the point at which an MEP response was still measurable with minimal subcortical MEP intensity was marked with a titanium clip. At this location, different stimulation paradigms were executed with cathodal or anodal stimulation at 0.3-, 0.5-, and 0.7-msec pulse durations. Postoperatively, the distance between the CST as defined by postoperative diffusion tensor imaging fiber tracking and the titanium clip was measured. The correlation between this distance and the subcortical MEP electrical charge was calculated.
RESULTS
Subcortical MEP mapping was successful in all patients. There were no new permanent motor deficits. Transient new postoperative motor deficits were observed in 14% (5/36) of cases. Gross-total resection was achieved in 75% (27/36) and subtotal resection (> 80% of tumor mass) in 25% (9/36) of cases. Stimulation intensity with various pulse durations as well as current intensity was plotted against the measured distance between the CST and the titanium clip on postoperative MRI using diffusion-weighted imaging fiberitracking tractography. Correlational and regression analyses showed a nonlinear correlation between stimulation intensity and the distance to the CST. Cathodal stimulation appeared better suited for subcortical stimulation.
CONCLUSIONS
Subcortical MEP mapping is an excellent intraoperative method to determine the distance to the CST during resection of motor-eloquent lesions and is highly capable of further reducing the risk of a new neurological deficit.
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Affiliation(s)
| | | | - Bernhard Haller
- 3Institute for Medical Statistics and Epidemiology, Technische Universität München, Munich, Germany
| | | | | | - Tobias Boeckh-Behrens
- 2Section of Neuroradiology, Department of Radiology, Klinikum rechts der Isar, Technische Universität München; and
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Shiban E, Krieg SM, Obermueller T, Wostrack M, Meyer B, Ringel F. Continuous subcortical motor evoked potential stimulation using the tip of an ultrasonic aspirator for the resection of motor eloquent lesions. J Neurosurg 2015; 123:301-6. [DOI: 10.3171/2014.11.jns141555] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT
Resection of a motor eloquent lesion has become safer because of intraoperative neurophysiological monitoring (IOM). Stimulation of subcortical motor evoked potentials (scMEPs) is increasingly used to optimize patient safety. So far, scMEP stimulation has been performed intermittently during resection of eloquently located lesions. Authors of the present study assessed the possibility of using a resection instrument for continuous stimulation of scMEPs.
METHODS
An ultrasonic surgical aspirator was attached to an IOM stimulator and was used as a monopolar subcortical stimulation probe. The effect of the aspirator’s use at different ultrasound power levels (0%, 25%, 50%, 75%, and 100%) on stimulation intensity was examined in a saline bath. Afterward monopolar stimulation with the surgical aspirator was used during the resection of subcortical lesions in the vicinity of the corticospinal tract in 14 patients in comparison with scMEP stimulation via a standard stimulation electrode. During resection, the stimulation current at which an MEP response was still measurable with subcortical stimulation using the surgical aspirator was compared with the corresponding stimulation current needed using a standard monopolar subcortical stimulation probe at the same location.
RESULTS
The use of ultrasound at different energy levels did result in a slight but irrelevant increase in stimulation energy via the tip of the surgical aspirator in the saline bath. Stimulation of scMEPs using the surgical aspirator or monopolar probe was successful and almost identical in all patients. One patient developed a new permanent neurological deficit. Transient new postoperative paresis was observed in 28% (4 of 14) of cases. Gross-total resection was achieved in 64% (9 of 14) cases and subtotal resection (> 80% of tumor mass) in 35% (5 of 14).
CONCLUSIONS
Continuous motor mapping using subcortical stimulation via a surgical aspirator, in comparison with the sequential use of a standard monopolar stimulation probe, is a feasible and safe method without any disadvantages. Compared with the standard probe, the aspirator offers continuous information on the distance to the corticospinal tract.
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