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Akkipeddi SMK, Rahmani R, Ellens NR, Kohli GS, Houk C, Schartz DA, Chittaranjan S, Worley L, Gunturi A, Bhalla T, Mattingly TK, Welle K, Morrell CN, Bender MT. Histone content, and thus DNA content, is associated with differential in vitro lysis of acute ischemic stroke clots. J Thromb Haemost 2024; 22:1410-1420. [PMID: 38296159 DOI: 10.1016/j.jtha.2024.01.013] [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: 10/09/2023] [Revised: 12/15/2023] [Accepted: 01/09/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND Fibrin, von Willebrand factor, and extracellular DNA from neutrophil extracellular traps all contribute to acute ischemic stroke thrombus integrity. OBJECTIVES In this study, we explored how the proteomic composition of retrieved thromboemboli relates to susceptibility to lysis with distinct thrombolytics. METHODS Twenty-six retrieved stroke thromboemboli were portioned into 4 segments, with each subjected to 1 hour of in vitro lysis at 37 °C in 1 of 4 solutions: tissue plasminogen activator (tPA), tPA + von Willebrand factor-cleaving ADAMTS-13, tPA + DNA-cleaving deoxyribonuclease (DNase) I, and all 3 enzymes. Lysis, characterized by the percent change in prelysis and postlysis weight, was compared across the solutions and related to the corresponding abundance of proteins identified on mass spectrometry for each of the thromboemboli used in lysis. RESULTS Solutions containing DNase resulted in approximately 3-fold greater thrombolysis than that with the standard-of-care tPA solution (post hoc Tukey, P < .01 for all). DNA content was directly related to lysis in solutions containing DNase (Spearman's ρ > 0.39 and P < .05 for all significant histones) and inversely related to lysis in solutions without DNase (Spearman's ρ < -0.40 and P < .05 for all significant histones). Functional analysis suggests distinct pathways associated with susceptibility to thrombolysis with tPA (platelet-mediated) or DNase (innate immune system-mediated). CONCLUSION This study demonstrates synergy of DNase and tPA in thrombolysis of stroke emboli and points to DNase as a potential adjunct to our currently limited selection of thrombolytics in treating acute ischemic stroke.
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Affiliation(s)
- Sajal Medha K Akkipeddi
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA. https://twitter.com/SajalAkkipeddi
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Nathaniel R Ellens
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Gurkirat S Kohli
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Clifton Houk
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Derrek A Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA. https://twitter.com/D_SchartzMD
| | - Siddharth Chittaranjan
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Logan Worley
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Aditya Gunturi
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Thomas K Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Kevin Welle
- Mass Spectrometry Resource Laboratory, University of Rochester Medical Center, Rochester, New York, USA
| | - Craig N Morrell
- Aab Cardiovascular Research Institute, University of Rochester Medical Center, Rochester, New York, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA.
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Ellens NR, Albert GP, Bender MT, George BP, McHugh DC. Trends and Predictors of Decompressive Craniectomy in Acute Ischemic Stroke, 2011-2020. J Stroke Cerebrovasc Dis 2024; 33:107713. [PMID: 38583545 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107713] [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: 10/24/2023] [Revised: 03/29/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024] Open
Abstract
INTRODUCTION Rates of decompressive craniectomy (DC) in acute ischemic stroke (AIS) have been reported to decline over time, attributed to an increase in endovascular therapy (EVT) preventing the development of malignant cerebral edema. We sought to characterize trends in DC in AIS between 2011 and 2020. MATERIAL AND METHODS We performed a retrospective observational study of U.S. AIS hospitalizations using the National Inpatient Sample, 2011 to 2020. We calculated rates of DC per 10,000 AIS among all AIS hospitalizations, as well as AIS hospitalizations undergoing invasive mechanical ventilation (IMV). A logistic regression to determine predictors of DC was performed. RESULTS Of ∼4.4 million AIS hospitalizations, 0.5% underwent DC; of ∼300,000 AIS with IMV, 5.8% underwent DC. From 2011 to 2020, the rate of DC increased from 37.4 to 59.1 per 10,000 AIS (p<0.001). The rate of DC in patients undergoing IMV remained stable at ∼550 per 10,000 (p=0.088). The most important factors predicting DC were age (OR 4.88, 95% CI 4.53-5.25), hospital stroke volume (OR 2.61, 95% CI 2.17-3.14), hospital teaching status (OR 1.54, 95% CI 1.36-1.75), and transfer status (OR 1.53, 95% CI 1.41-1.66); EVT status did not predict DC. CONCLUSIONS The rate of DC in AIS has increased between 2011 and 2020. Our findings are contrary to prior reports of decreasing DC rates over time. Increasing EVT rates do not seem to be preventing the occurrence of DC. Future research should focus on the decision-making process for both clinicians and surrogates regarding DC with consideration of long-term outcomes.
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Affiliation(s)
- Nathaniel R Ellens
- University of Rochester Medical Center, Department of Neurological Surgery, Rochester, NY.
| | - George P Albert
- University of Rochester Medical Center, Department of Neurology, Rochester, NY.
| | - Matthew T Bender
- University of Rochester Medical Center, Department of Neurological Surgery, Rochester, NY.
| | - Benjamin P George
- University of Rochester Medical Center, Department of Neurology, Rochester, NY.
| | - Daryl C McHugh
- University of Rochester Medical Center, Department of Neurology, Rochester, NY.
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Rahmani R, Santangelo G, Jalal MI, Catanzaro M, Samodal J, Bender MT, Stone JJ. A Simple 3D Printed Model for Intracranial Vascular Anastomosis Practice and the Rochester Bypass Training Score. Oper Neurosurg (Hagerstown) 2024; 26:341-345. [PMID: 37815226 DOI: 10.1227/ons.0000000000000931] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 06/07/2023] [Accepted: 08/04/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Surgical simulation models in cranial neurosurgery are needed to allow affordable, accessible, and validated practice in resident education. Current bypass anastomosis practice models revolve around basic tube tying or complex animal and 3-dimensional models. This study sought to design and validate a 3-dimensional printed model for intracranial anastomosis training. METHODS A computer-aided design (CAD) generic skull was uploaded into Meshmixer (v.3.5), and a 55-mm opening was created on the right side, mimicking a standard orbitozygomatic craniotomy. The model was rotated 15° upward and 35° left, before a 10-mm square frame was added 80-mm deep to the right orbit. The CAD model was uploaded to GrabCAD and printed using a J750 PolyJet 3D printer before being paired with a vascular anastomosis kit. The model was validated with standardized assessments of residents and attendings by simulating an "M2 to P2" bypass. The Rochester Bypass Training Score (RBTS) was created to assess bypass patency, back wall suturing, and suture quality. Postsimulation survey data regarding the realism and usefulness of the simulation were collected. RESULTS Five junior residents (Postgraduate Year 1-4), 3 senior residents (Postgraduate Year 5-7), and 2 attendings were participated. The mean operative time in minutes was as follows: junior residents 78, senior residents 33, and attendings 50. The RBTS means were as follows: junior residents 2.4, senior residents 4.0, and attendings 5.0. Participants agreed that the model was realistic, useful for improving operative technique, and would increase comfort in bypass procedures. There are a few different printing options, varying in model infill and printing material used. For this experiment, a mix of Vero plastics were used totaling $309.09 per model; however, using the more common printing material polylactic acid brings the cost to $17.27 for a comparable model. CONCLUSION This study presents an affordable, realistic, and educational intracranial vascular anastomosis simulator and introduces the RBTS for assessment.
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Affiliation(s)
- Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester , New York, USA
| | - Gabrielle Santangelo
- Department of Neurosurgery, University of Rochester Medical Center, Rochester , New York, USA
| | - Muhammad I Jalal
- University of Rochester, School of Medicine and Dentistry, Rochester , New York, USA
| | - Michael Catanzaro
- Department of Plastic Surgery, University of Rochester Medical Center, Rochester , New York, USA
| | - Joshua Samodal
- Department of Neurosurgery, University of Rochester Medical Center, Rochester , New York, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester , New York, USA
| | - Jonathan J Stone
- Department of Neurosurgery, University of Rochester Medical Center, Rochester , New York, USA
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Ellens NR, Schartz D, Kohli G, Rahmani R, Akkipeddi SMK, Mattingly TK, Bhalla T, Bender MT. Safety and efficacy comparison of embolic agents for middle meningeal artery embolization for chronic subdural hematoma. J Cerebrovasc Endovasc Neurosurg 2024; 26:11-22. [PMID: 37828746 PMCID: PMC10995466 DOI: 10.7461/jcen.2023.e2023.04.002] [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: 04/14/2023] [Revised: 07/26/2023] [Accepted: 08/03/2023] [Indexed: 10/14/2023] Open
Abstract
OBJECTIVE To perform a systematic review and meta-analysis evaluating the efficacy of middle meningeal artery embolization in terms of both clinical and radiographic outcomes, when performed with different embolic agents. METHODS A systematic literature review and meta-analysis was performed to evaluate the impact of embolic agents on outcomes for middle meningeal artery (MMA) embolization. The use of polyvinyl alcohol (PVA) with or without (±) coils, N-butyl cyanoacrylate (n-BCA) ± coils, and Onyx alone were separately evaluated. Primary outcome measures were recurrence, the need for surgical rescue and in-hospital periprocedural complications. RESULTS Thirty-one studies were identified with a total of 1,134 patients, with 786 receiving PVA, 167 receiving n-BCA, and 181 patients receiving Onyx. There was no difference in the recurrence rate (5.5% for PVA, 4.5% for n-BCA, and 6.5% for Onyx, with P=0.71) or need for surgical rescue (5.0% for PVA, 4.0% for n-BCA, and 6.9% for Onyx, with P=0.89) based on the embolic agent. Procedural complications also did not differ between embolic agents (1.8% for PVA, 3.6% for n-BCA, and 1.6% for Onyx, with P=0.48). CONCLUSIONS Rates of recurrence, need for surgical rescue, and periprocedural complication following MMA embolization are not impacted by the type of embolic agent utilized. Ongoing clinical trials may be used to further investigate these findings.
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Affiliation(s)
- Nathaniel R. Ellens
- Department of Neurosurgery, University of Rochester Medical Center, New York, USA
| | - Derrek Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, New York, USA
| | - Gurkirat Kohli
- Department of Neurosurgery, University of Rochester Medical Center, New York, USA
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, New York, USA
| | | | - Thomas K. Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, New York, USA
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, New York, USA
| | - Matthew T. Bender
- Department of Neurosurgery, University of Rochester Medical Center, New York, USA
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Campos JK, Zarrin DA, Meyer BM, Khan MW, Laghari FJ, Collard de Beaufort JC, Amin G, Beaty NB, Bender MT, Suzuki S, Colby GP, Lin LM, Coon AL. Use of a large-bore 088 intracranial access support catheter for delivery of large intracranial devices: case series with the TracStar LDP in 125 cases. J Neurointerv Surg 2024:jnis-2023-021054. [PMID: 38418227 DOI: 10.1136/jnis-2023-021054] [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: 09/19/2023] [Accepted: 02/02/2024] [Indexed: 03/01/2024]
Abstract
BACKGROUND The delivery of neuroendovascular devices requires a robust proximal access platform. This demand has previously been met with a 6Fr long sheath (8Fr guide) that is placed in the proximal internal carotid artery (ICA) or vertebral artery segments. We share our experience with the first 0.088 inch 8Fr guide catheter designed for direct intracranial access. METHODS We retrospectively reviewed a prospectively maintained IRB-approved institutional database of the senior authors to identify all cases where the TracStar Large Distal Platform (LDP) was positioned within the intracranial vasculature, defined as within or distal to the petrous ICA, vertebral artery (V3) segments, or transverse sinus. Technical success was defined as safe placement of the TracStar LDP within or distal to the described distal vessel segments with subsequent complication-free device implantation. RESULTS Over the 41-month study period from January 2020 to June 2023, 125 consecutive cases were identified in whom the TracStar LDP was navigated into the intracranial vasculature for triaxial delivery of large devices, 0.027 inch microcatheter and greater, for aneurysm treatment (n=108, 86%), intracranial angioplasty/stenting (n=15, 12%), and venous sinus stenting (n=2, 1.6%). All cases used a direct select catheter technique for initial guide placement (no exchange). Posterior circulation treatments occurred in 14.4% (n=18) of cases. Technical success was achieved in 100% of cases. No vessel dissections occurred in any cases. CONCLUSION The TracStar LDP is an 0.088 inch 8Fr guide catheter that can establish direct intracranial access with an acceptable safety profile. This can be achieved in a wide range of neurointerventional cases with a high rate of technical success.
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Affiliation(s)
- Jessica K Campos
- Department of Neurosurgery, University of California Irvine, Orange, California, USA
| | - David A Zarrin
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Benjamen M Meyer
- College of Medicine Tucson, The University of Arizona, Tucson, Arizona, USA
| | - Muhammad Waqas Khan
- Carondelet Neurological Institute, Carondelet Saint Joseph's Hospital, Tucson, Arizona, USA
| | - Fahad J Laghari
- Carondelet Neurological Institute, Carondelet Saint Joseph's Hospital, Tucson, Arizona, USA
| | | | - Gizal Amin
- Carondelet Neurological Institute, Carondelet Saint Joseph's Hospital, Tucson, Arizona, USA
| | - Narlin B Beaty
- Department of Neurosurgery Tallahassee Memorial Hospital, Tallahassee Memorial Hospital Florida State University, Tallahassee, Florida, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Shuichi Suzuki
- Department of Neurosurgery, University of California Irvine, Orange, California, USA
| | - Geoffrey P Colby
- Department of Neurosurgery, University of California Los Angeles, Los Angeles, California, USA
| | - Li-Mei Lin
- Carondelet Neurological Institute, Carondelet Saint Joseph's Hospital, Tucson, Arizona, USA
| | - Alexander L Coon
- Carondelet Neurological Institute, Carondelet Saint Joseph's Hospital, Tucson, Arizona, USA
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Campos JK, Meyer BM, Khan MW, Laghari FJ, Zarrin DA, Collard de Beaufort J, Amin G, Golshani K, Bender MT, Colby GP, Lin LM, Coon AL. Feasibility of super-bore 0.088″ mechanical thrombectomy in M1 vessels smaller than 8 French: Experience in 20 consecutive cases. Interv Neuroradiol 2024:15910199241229198. [PMID: 38418397 DOI: 10.1177/15910199241229198] [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] [Indexed: 03/01/2024] Open
Abstract
INTRODUCTION Superbore 0.088″ catheters provide a platform for optimizing aspiration efficiency and flow control during stroke mechanical thrombectomy procedures. New superbore catheters have the distal flexibility necessary to navigate complex neurovascular anatomy while providing the proximal support of traditional 8F catheters. The safety and feasibility of Zoom 88™ superbore angled-tip catheters in the middle cerebral artery (MCA) segments smaller than the catheter diameter have not been previously described. METHODS Twenty consecutive cases of acute MCA mechanical thrombectomy were retrospectively identified from the senior authors' prospectively maintained Institutional Review Board-approved database, in which the Zoom 88 (Imperative Care, Campbell, CA) catheter was successfully navigated to at least the M1 segment. Patient demographics, procedural details, and periprocedural information were analyzed. Rates and averages (standard errors) are generally reported. RESULTS The average National Institutes of Health Stroke Scale at presentation and age were 15 ± 2 and 73 ± 3 years, respectively. The M1 and M2 occlusions were evenly distributed. The average M1 measurements before thrombectomy ranged from 2.36 ± 0.07 mm proximally to 2.00 ± 0.11 mm distally, and after thrombectomy, they ranged from 2.34 ± 0.07 mm proximally to 1.97 ± 0.10 mm distally. First-pass modified thrombolysis in cerebral infarction (mTICI) 2C/3 recanalization was achieved in 40% of cases, and final mTICI 2C/3 recanalization was achieved in 90% of cases. A single case of mild vasospasm was managed with verapamil. No hemorrhagic or periprocedural complications were noted. CONCLUSION Superbore 0.088″ catheters with flexible distal segments can be safely navigated to the MCA to augment mechanical thrombectomy even when the MCA segment is smaller than the catheter.
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Affiliation(s)
- Jessica K Campos
- Department of Neurological Surgery, University of California Irvine, Orange, CA, USA
| | | | | | - Fahad J Laghari
- Carondelet Neurological Institute, St. Joseph's Hospital, Tucson, AZ, USA
| | - David A Zarrin
- University of California Los Angeles, David Geffen School of Medicine, Los Angeles, CA, USA
| | | | - Gizal Amin
- Carondelet Neurological Institute, St. Joseph's Hospital, Tucson, AZ, USA
| | - Kiarash Golshani
- Department of Neurological Surgery, University of California Irvine, Orange, CA, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester, Rochester, NY, USA
| | - Geoffrey P Colby
- Department of Neurosurgery, University of California Los Angeles, Los Angeles, CA, USA
| | - Li-Mei Lin
- Carondelet Neurological Institute, St. Joseph's Hospital, Tucson, AZ, USA
| | - Alexander L Coon
- Carondelet Neurological Institute, St. Joseph's Hospital, Tucson, AZ, USA
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Schartz D, Finkelstein A, Hoang N, Bender MT, Schifitto G, Zhong J. Diffusion-Weighted Imaging Reveals Impaired Glymphatic Clearance in Idiopathic Intracranial Hypertension. AJNR Am J Neuroradiol 2024; 45:149-154. [PMID: 38238097 DOI: 10.3174/ajnr.a8088] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/14/2023] [Accepted: 11/02/2023] [Indexed: 02/09/2024]
Abstract
BACKGROUND AND PURPOSE The pathophysiology underlying idiopathic intracranial hypertension (IIH) remains incompletely understood. While one theory postulates impaired cerebral glymphatic clearance in IIH, there is a paucity of methods to quantify glymphatic activity in human brains. The purpose of this study was to use advanced diffusion-weighed imaging to evaluate the glymphatic clearance of IIH patients and how it may relate to clinical severity. MATERIALS AND METHODS DWI was used to separately evaluate the diffusivity along the cerebral perivascular spaces and lateral association and projection fibers, with the degree of diffusivity used as a surrogate for glymphatic function (diffusion tensor image analysis along the perivascular space. Patients with IIH were compared with normal controls. Glymphatic clearance was correlated with several clinical metrics, including lumbar puncture opening pressure and Frisen papilledema grade (low grade: 0-2; high grade: 3-5). RESULTS In total, 99 patients with IIH were identified and compared with 6 healthy controls. Overall, patients with IIH had significantly lower glymphatic clearance based on DWI-derived diffusivity compared with controls (P = .005). Additionally, in patients with IIH, there was a significant association between declining glymphatic clearance and increasing Frisen papilledema grade (P = .046) but no correlation between opening pressure and glymphatic clearance (P = .27). Furthermore, healthy controls had significantly higher glymphatic clearance compared with patients with IIH and low-grade papilledema (P = .015) and high-grade papilledema (P = .002). Lastly, patients with IIH and high-grade papilledema had lower glymphatic clearance compared with patients with IIH and low-grade papilledema (P = .005). CONCLUSIONS Patients with IIH possess impaired glymphatic clearance, which is directly related to the extent of clinical severity. The DWI-derived parameters can be used for clinical diagnosis or to assess response to treatment.
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Affiliation(s)
- Derrek Schartz
- From the Department of Imaging Sciences (D.S., A.F., N.H., G.S., J.Z.), University of Rochester Medical Center, Rochester, New York
| | - Alan Finkelstein
- From the Department of Imaging Sciences (D.S., A.F., N.H., G.S., J.Z.), University of Rochester Medical Center, Rochester, New York
| | - Nhat Hoang
- From the Department of Imaging Sciences (D.S., A.F., N.H., G.S., J.Z.), University of Rochester Medical Center, Rochester, New York
| | - Matthew T Bender
- Department of Neurosurgery (M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Giovanni Schifitto
- From the Department of Imaging Sciences (D.S., A.F., N.H., G.S., J.Z.), University of Rochester Medical Center, Rochester, New York
- Department of Neurology (G.S.), University of Rochester Medical Center, Rochester, New York
| | - Jianhui Zhong
- From the Department of Imaging Sciences (D.S., A.F., N.H., G.S., J.Z.), University of Rochester Medical Center, Rochester, New York
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Schartz DA, Ismail RF, Rahman AA, Bender MT, Westesson PL, Mesfin A, Kessler A. Management of postoperative cervical pseudomeningocele with percutaneous aspiration and epidural blood patch. Interv Neuroradiol 2024; 30:137-142. [PMID: 35818726 PMCID: PMC10956454 DOI: 10.1177/15910199221113714] [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: 05/12/2022] [Accepted: 06/27/2022] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION While epidural blood patch can be an effective management option in lumbar pseudomeningoceles in certain clinical settings, its utility in the cervical spine is unclear. The aim of this study was to evaluate the safety and effectiveness of percutaneous aspiration and autologous blood patch for post-operative durotomy related pseudomeningoceles within the cervical spine. METHODS A single institution retrospective review detailing 3 patients with durotomy related pseudomeningocele following posterior cervical spine surgery was completed. RESULTS In all three cases, aspiration with subsequent injection of autologous epidural blood patch successfully treated each pseudomeningocele. One patient required more than one intervention, while the other two were successfully treated after one procedure. All three patients improved clinically without need for additional surgery. CONCLUSION Percutaneous aspiration and epidural blood patch can be used to safely manage post-operative pseudomeningoceles within the posterior cervical spine.
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Affiliation(s)
- Derrek A Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Rahim F Ismail
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Akm A Rahman
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Per-Lennart Westesson
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Addisu Mesfin
- Department of Orthopedic Surgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Alex Kessler
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
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Akkipeddi SMK, Rahmani R, Schartz D, Chittaranjan S, Ellens NR, Kohli GS, Bhalla T, Mattingly TK, Welle K, Morrell CN, Bender MT. Stroke emboli from patients with atrial fibrillation enriched with neutrophil extracellular traps. Res Pract Thromb Haemost 2024; 8:102347. [PMID: 38496712 PMCID: PMC10943055 DOI: 10.1016/j.rpth.2024.102347] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/19/2024] [Accepted: 02/01/2024] [Indexed: 03/19/2024] Open
Abstract
Background Recent literature has demonstrated remarkable heterogeneity in the composition of acute ischemic stroke (AIS) emboli, which may impact susceptibility to therapy. Objectives In this study, we explored differences in proteomic composition of retrieved embolic material from patients with stroke with and without atrial fibrillation (AF) (AF+ and AF-, respectively). Methods The full proteome of retrieved thromboembolic material from 24 patients with AIS was obtained by mass spectrometry. Known marker proteins were assigned groups representing broad classes of embolus components: red blood cells, platelets, neutrophils, eosinophils, histones, complement, and other clotting-associated proteins (eg, fibrinogen). Relative protein abundances were compared between AF+ and AF- samples. Functional implications of differences were explored with gene set enrichment analysis and Gene Ontology enrichment analysis and visualization tool. Results One hundred sixty-six proteins were differentially expressed between AF+ and AF- specimens. Eight out of the 15 neutrophil proteins (P < .05; fold change, >2) and 4 of the 14 histone proteins were significantly enriched in AF+ emboli (P < .05; fold change, >2). Gene set enrichment analysis revealed a significant representation of proteins from published neutrophil extracellular trap (NET) proteomic gene sets. The most significantly represented functional Gene Ontology pathways in patients with AF involved neutrophil activation and degranulation (P < 1 × 10-7). Conclusion The present analysis suggests enrichment of NETs in emboli of patients with stroke and AF. NETs are a significant though understudied structural component of thrombi. This work suggests not only unique stroke biology in AF but also potential therapeutic targets for AIS in this population.
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Affiliation(s)
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Derrek Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
| | - Siddharth Chittaranjan
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Nathaniel R. Ellens
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Gurkirat S. Kohli
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Thomas K. Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Kevin Welle
- Mass Spectrometry Research Laboratory, University of Rochester Medical Center, Rochester, New York, USA
| | - Craig N. Morrell
- Aab Cardiovascular Research Institute, University of Rochester Medical Center, Rochester, New York, USA
| | - Matthew T. Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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Ellens N, Singh AP, Santangelo G, Bender MT. Dural arteriovenous fistula embolisation with venous remodelling following venous sinus stenting. BMJ Case Rep 2024; 17:e256869. [PMID: 38191222 PMCID: PMC10806990 DOI: 10.1136/bcr-2023-256869] [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] [Indexed: 01/10/2024] Open
Abstract
We report a case of the formation of a dural arteriovenous fistula (dAVF) of the transverse-sigmoid sinus following venous sinus stenting (VSS), treated with trans-arterial embolisation and venous remodelling. An obese woman in her 30s presented with persistent daily headaches after undergoing endoscopic repair of a skull base cerebrospinal fluid leak. Angiography demonstrated a focal right transverse-sigmoid sinus stenosis, and she underwent VSS of the right transverse sinus. She developed progressive pulsatile tinnitus within 3 months, and angiography demonstrated the formation of a Borden type 1 dAVF along the stent. Trans-arterial embolisation of the dAVF was performed with venous remodelling using a Copernic RC balloon. While VSS has become a promising treatment for venous sinus stenosis and idiopathic intracranial hypertension, dAVF formation is a rare but significant potential complication. Embolisation with venous remodelling can be performed to treat these lesions.
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Affiliation(s)
- Nathaniel Ellens
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Aman Preet Singh
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | | | - Matthew T Bender
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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Campos JK, Meyer BM, Zarrin DA, Khan MW, Collard de Beaufort JC, Amin G, Avery MB, Golshani K, Beaty NB, Bender MT, Colby GP, Lin LM, Coon AL. Immediate procedural safety of adjunctive proximal coil occlusion in middle meningeal artery embolization for chronic subdural hematomas: Experience in 137 cases. Interv Neuroradiol 2024:15910199231224003. [PMID: 38166510 DOI: 10.1177/15910199231224003] [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] [Indexed: 01/04/2024] Open
Abstract
BACKGROUND Endovascular embolization of the middle meningeal artery (MMA) has emerged as an adjunctive and stand-alone modality for the management of chronic subdural hematomas (cSDH). We report our experience utilizing proximal MMA coil embolization to augment cSDH devascularization in MMA embolization. METHODS MMA embolization cases with adjunctive proximal MMA coiling were retrospectively identified from a prospectively maintained IRB-approved database of the senior authors. RESULTS Of the 137 cases, all patients (n = 89, 100%) were symptomatic and underwent an MMA embolization procedure for cSDH. 50 of the patients underwent bilateral embolizations, with 53% (n = 72) for left-sided and 47% (n = 65) for right-sided cSDH. The anterior MMA branch was embolized in 19 (14%), posterior in 16 (12%), and both in 102 (74.5%) cases. Penetration of the liquid embolic to the contralateral MMA or into the falx was present in 38 (28%) and 31 (23%) cases, respectively, and 46 (34%) cases had ophthalmic or petrous collateral (n = 41, 30%) branches. MMA branches coiled include the primary trunk (25.5%, n = 35), primary and anterior or posterior MMA trunks (20%, n = 28), or primary with the anterior and posterior trunks (54%, n = 74). A mild ipsilateral facial nerve palsy was reported, which remained stable at discharge and follow-up. Absence of anterograde flow in the MMA occurred in 137 (100%) cases, and no cases required periprocedural rescue surgery for cSDH evacuation. The average follow-up length was 170 ± 17.9 days, cSDH was reduced by 4.24 ± 0.5(mm) and the midline shift by 1.46 ± 0.27(mm). Complete resolution was achieved in 63 (46.0%) cases. CONCLUSION Proximal MMA coil embolization is a safe technique for providing additional embolization/occlusion of the MMA in cSDH embolization procedures. Further studies are needed to evaluate the potential added efficacy of this technique.
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Affiliation(s)
- Jessica K Campos
- Department of Neurological Surgery, University of California Irvine, Orange, CA, USA
| | | | - David A Zarrin
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | | | | | - Gizal Amin
- Carondelet Neurological Institute, St Joseph's Hospital, Tucson, AZ, USA
| | - Michael B Avery
- Department of Neurosurgery, Banner University Medical Center / The University of Arizona, Tucson, AZ, USA
| | - Kiarash Golshani
- Department of Neurological Surgery, University of California Irvine, Orange, CA, USA
| | - Narlin B Beaty
- Department of Neurosurgery, Florida State University, Tallahassee Memorial Hospital, Tallahassee, FL, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester, Rochester, NY, USA
| | - Geoffrey P Colby
- Department of Neurosurgery, University of California Los Angeles, Los Angeles, CA, USA
| | - Li-Mei Lin
- Carondelet Neurological Institute, St Joseph's Hospital, Tucson, AZ, USA
| | - Alexander L Coon
- Carondelet Neurological Institute, St Joseph's Hospital, Tucson, AZ, USA
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12
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Ellens NR, Susa S, Hoang R, Love T, Jones J, Santangelo G, Bender MT, Mattingly TK. Comparing Outcomes for Emergent Cranial Neurosurgical Procedures Performed "During Hours" and "After Hours". World Neurosurg 2024; 181:e703-e712. [PMID: 37898280 DOI: 10.1016/j.wneu.2023.10.116] [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: 06/19/2023] [Revised: 10/21/2023] [Accepted: 10/22/2023] [Indexed: 10/30/2023]
Abstract
OBJECTIVE Surgery performed at night and on weekends is thought to be associated with increased complications. However, the impact of time of day on outcomes has not been studied within cranial neurosurgery. We aim to determine if there are differences in outcomes for cranial neurosurgery performed after hours (AH) compared with during hours (DH). METHODS We performed a single-center retrospective study of cranial neurosurgery patients who underwent emergent surgery from January 2015 through December 2019. Surgery was considered DH if the incision occurred between 8 am and 5 pm Monday through Friday. We assessed outcome measures for differences between operations performed DH or AH. RESULTS Three-hundred and ninety-three patients (114 DH, 279 AH) underwent surgery. There was a lower rate of return to the operating room within 30 days for AH (8.6%) compared with DH (14.0%), P = 0.03, on multivariate analysis. There were no significant differences in length of operation, estimated blood loss, improvement in Glasgow Coma Scale, intensive care unit and total hospital length of stay, 30-day readmission, 30-day mortality, and in-hospital mortality for cases performed DH compared with AH. Further subgroup analyses were performed for patients who underwent immediate surgery for subdural hematomas, with no differences noted in outcomes on multivariate analysis. CONCLUSIONS This study suggests that operating AH does not appear to negatively impact outcomes when compared with operating DH, in cases of cranial neurosurgical emergencies. Further study assessing the impact on elective neurosurgical cases is required.
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Affiliation(s)
- Nathaniel R Ellens
- Department of Neurosurgery, University of Rochester, Rochester, New York, USA.
| | - Stephen Susa
- University of Rochester School of Medicine & Dentistry, Rochester, New York, USA
| | - Ricky Hoang
- Department of Anesthesiology and Perioperative Medicine, University of Rochester, Rochester, New York, USA
| | - Tanzy Love
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester, New York, USA
| | - Jeremiah Jones
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester, New York, USA
| | | | - Matthew T Bender
- Department of Neurosurgery, University of Rochester, Rochester, New York, USA
| | - Thomas K Mattingly
- Department of Neurosurgery, University of Rochester, Rochester, New York, USA
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Schartz D, Akkipeddi SMK, Rahmani R, Ellens N, Houk C, Kohli GS, Worley L, Welle K, Bhalla T, Mattingly T, Morrell C, Bender MT. Ischemic Stroke Thrombus Perviousness Is Associated with Distinguishable Proteomic Features and Susceptibility to ADAMTS13-Augmented Thrombolysis. AJNR Am J Neuroradiol 2023; 45:22-29. [PMID: 38123915 PMCID: PMC10756583 DOI: 10.3174/ajnr.a8069] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 07/13/2023] [Accepted: 10/20/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND AND PURPOSE Perviousness is the differential attenuation on CT of an intracranial arterial occlusive thrombus before and after IV contrast administration. While perviousness/permeability has been shown to be related to various clinical outcomes and reflects histopathologic composition, it remains unclear whether perviousness is also associated with differences in proteomic composition. MATERIALS AND METHODS Retrieved clots from 59 patients were evaluated with quantitative mass spectrometry. Proteomic differences between high-perviousness (≥11 HU) and low-perviousness (<11 HU) clots were investigated. Perviousness as a continuous variable was also correlated with protein abundance. Last, an ex vivo lysis assay was performed to investigate the differential susceptibility to tPA, deoxyribonuclease, and ADAMTS13 thrombolysis as a function of perviousness. RESULTS In total, 2790 distinct proteins were identified. Thrombus perviousness was associated with distinct proteomic features, including depletion of the macrophage marker CD14 (P = .039, z = 1.176) and hemoglobin subunit ζ (P = .046, z = 1.68) in pervious clots. Additionally, proteins involved in platelet cytoskeleton remodeling (tropomyosin α-3-chain) and granule secretion/aggregation (synaptotagmin-like protein 4/FC region receptor II-a) were associated with increasing perviousness (P < .006), among numerous other proteins. Monocyte/macrophage-associated proteins (apoptosis-associated specklike protein containing a CARD/SAMHD1) were also depleted in pervious emboli (P < .002). Ex vivo lysis indicated that pervious clots were more susceptible to ADAMTS13-augmented tPA thrombolysis compared with impervious clots (P < .05), though without differences in deoxyribonuclease digestion. CONCLUSIONS Thrombus perviousness is associated with complex proteomic features, including differential abundance of platelet-related proteins in highly permeable clots with monocyte/macrophage depletion. This association may help to explain why highly pervious thrombi were also found more susceptible to ADAMTS13-augmented thrombolysis.
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Affiliation(s)
- Derrek Schartz
- From the Department of Imaging Sciences (D.S., L.W.), University of Rochester Medical Center, Rochester, New York
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Sajal Medha K Akkipeddi
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Redi Rahmani
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Nathaniel Ellens
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Clifton Houk
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Gurkirat Singh Kohli
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Logan Worley
- From the Department of Imaging Sciences (D.S., L.W.), University of Rochester Medical Center, Rochester, New York
| | - Kevin Welle
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Tarun Bhalla
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Thomas Mattingly
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - Craig Morrell
- Aab Cardiovascular Research Institute (C.M.), University of Rochester Medical Center, Rochester, New York
| | - Matthew T Bender
- Department of Neurosurgery (D.S., S.M.K.A., R.R., N.E., C.H., G.S.K., K.W., T.B., T.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
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Ellens NR, Schartz D, Ismail R, Kessler A, Ellika S, Akkipeddi SMK, Rahmani R, Bender MT. Efficacy of transvenous embolization of CSF-venous fistula in spontaneous intracranial hypotension: Case-series. Interv Neuroradiol 2023:15910199231221449. [PMID: 38130106 DOI: 10.1177/15910199231221449] [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] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Spontaneous intracranial hypotension is a debilitating neurological condition which can be caused by a cerebrospinal fluid-venous fistula. Transvenous embolization is a promising technique to provide minimally invasive yet durable treatment. METHODS A retrospective single-center case series was performed on all patients who underwent transvenous embolization of a cerebrospinal fluid (CSF)-venous fistula. Clinical and radiographic parameters, including Bern score, were reported preoperatively and at 3-month follow-up. RESULTS Six patients underwent embolization of a CSF-venous fistula. All fistulae were located in the thoracic spine and technical success was achieved in all cases. Three patients had symptom resolution, two had significant improvement, and one had stable symptoms on follow-up. The mean Bern score was 6.83 (SD = 1.47) preoperatively and 1.83 (SD = 1.64) postoperatively with a mean improvement in Bern score of 5.0 (SD = 1.9, p = 0.0013). CONCLUSIONS CSF-venous fistulas are an increasingly recognized clinical entity which may be treated with transvenous embolization. This case series serves to further validate this technique and suggests it can be performed with similar outcomes in lower volume centers.
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Affiliation(s)
- Nathaniel R Ellens
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Derrek Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Rahim Ismail
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Alex Kessler
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Shehenaz Ellika
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | | | - Redi Rahmani
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, AZ, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
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15
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Zhang L, Albert GP, Pieters TA, McHugh DC, Asemota AO, Roberts DE, Hwang DY, Bender MT, George BP. Association of Do-Not-Resuscitate orders and in-hospital mortality among patients undergoing cranial neurosurgery. J Clin Neurosci 2023; 118:26-33. [PMID: 37857061 DOI: 10.1016/j.jocn.2023.10.006] [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: 08/13/2023] [Revised: 09/21/2023] [Accepted: 10/10/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Previous studies identified pre-existing DNR orders as a predictor of mortality after surgery. We sought to evaluate mortality of patients receiving cranial neurosurgery with DNR orders placed at the time of, or within 24 h of admission. METHODS We performed a retrospective cohort study using the California State Inpatient Database, January 2018 to December 2020. We used International Classification of Diseases, 10th Revision (ICD-10) codes to identify emergent hospitalizations with principal diagnosis of brain injury, including traumatic brain injury [TBI], ischemic stroke [IS], intracerebral hemorrhage [ICH], subarachnoid hemorrhage [SAH], or malignant brain tumor [mBT]. We used procedure and Diagnosis Related Group codes to identify cranial neurosurgery. Patients with DNR were one-to-one matched to non-DNR controls based on diagnosis (exact matching), age, sex, Elixhauser comorbidity index, and organ failure (coarsened matching). The primary outcome was inpatient mortality. RESULTS In California, 30,384 patients underwent cranial neurosurgery, 2018-2020 (n = 3,112, 10% DNR). DNR patients were older, more often female, more often White, with greater comorbidity and organ system dysfunction. There were 2,505 patients with DNR orders 1:1 matched to controls. Patients with DNR had greater inpatient mortality (56% vs. 23%, p < 0.001; Hazard Ratio 3.11, 95% CI 2.50-3.86), received tracheostomy (Odds Ratio [OR] 0.37, 95% CI 0.24-0.57) and gastrostomy less (OR 0.48, 95% CI 0.39-0.58) compared to controls. Multivariable analysis of the unmatched cohort demonstrated similar results. CONCLUSION Patients undergoing cranial neurosurgery with early or pre-existing DNR have high inpatient mortality compared to clinically similar non-DNR patients; 1 in 2 died during their hospitalization.
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Affiliation(s)
- Lan Zhang
- University of Rochester Medical Center, Departments of Neurology and Neurosurgery, Rochester, NY, United States
| | - George P Albert
- University of Rochester Medical Center, Departments of Neurology and Neurosurgery, Rochester, NY, United States
| | - Thomas A Pieters
- University of Massachusetts Memorial Health, Department of Neurosurgery, Worcester, MA, United States
| | - Daryl C McHugh
- University of Rochester Medical Center, Departments of Neurology and Neurosurgery, Rochester, NY, United States
| | - Anthony O Asemota
- University of Texas Southwestern Medical Center, Department of Neurosurgery, Dallas, TX, United States
| | - Debra E Roberts
- University of Rochester Medical Center, Departments of Neurology and Neurosurgery, Rochester, NY, United States
| | - David Y Hwang
- University of North Carolina School of Medicine, Department of Neurology, Chapel Hill, NC, United States
| | - Matthew T Bender
- University of Rochester Medical Center, Departments of Neurology and Neurosurgery, Rochester, NY, United States
| | - Benjamin P George
- University of Rochester Medical Center, Departments of Neurology and Neurosurgery, Rochester, NY, United States.
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Schartz D, Akkipeddi SMK, Chittaranjan S, Rahmani R, Gunturi A, Ellens N, Kohli GS, Kessler A, Mattingly T, Morrell C, Bhalla T, Bender MT. CT hyperdense cerebral artery sign reflects distinct proteomic composition in acute ischemic stroke thrombus. J Neurointerv Surg 2023; 15:1264-1268. [PMID: 36878687 DOI: 10.1136/jnis-2022-019937] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/17/2023] [Indexed: 03/08/2023]
Abstract
BACKGROUND Hyperdense cerebral artery sign (HCAS) is an imaging biomarker in acute ischemic stroke (AIS) that has been shown to be associated with various clinical outcomes and stroke etiology. While prior studies have correlated HCAS with histopathological composition of cerebral thrombus, it is unknown whether and to what extent HCAS is also associated with distinct clot protein composition. METHODS Thromboembolic material from 24 patients with AIS were retrieved via mechanical thrombectomy and evaluated with mass spectrometry in order to characterize their proteomic composition. Presence (+) or absence (-) of HCAS on preintervention non-contrast head CT was then determined and correlated with thrombus protein signature with abundance of individual proteins calculated as a function HCAS status. RESULTS 24 clots with 1797 distinct proteins in total were identified. 14 patients were HCAS(+) and 10 were HCAS(-). HCAS(+) were most significantly differentially abundant in actin cytoskeletal protein (P=0.002, Z=2.82), bleomycin hydrolase (P=0.007, Z=2.44), arachidonate 12-lipoxygenase (P=0.004, Z=2.60), and lysophospholipase D (P=0.007, Z=2.44), among other proteins; HCAS(-) clots were differentially enriched in soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein (P=0.0009, Z=3.11), tyrosine-protein kinase Fyn (P=0.002, Z=2.84), and several complement proteins (P<0.05, Z>1.71 for all), among numerous other proteins. Additionally, HCAS(-) thrombi were enriched in biological processes involved with plasma lipoprotein and protein-lipid remodeling/assembling, and lipoprotein metabolic processes (P<0.001), as well as cellular components including mitochondria (P<0.001). CONCLUSIONS HCAS is reflective of distinct proteomic composition in AIS thrombus. These findings suggest that imaging can be used to identify mechanisms of clot formation or maintenance at the protein level, and might inform future research on thrombus biology and imaging characterization.
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Affiliation(s)
- Derrek Schartz
- Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Sajal Medha K Akkipeddi
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Siddharth Chittaranjan
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Aditya Gunturi
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Nathaniel Ellens
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Gurkirat Singh Kohli
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Alex Kessler
- Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
| | - Thomas Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Craig Morrell
- Aab Cardiovascular Research Institute, University of Rochester Medical Center, Rochester, New York, USA
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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Schartz D, Ellens N, Ismail R, Houk C, Kessler A, Ellika S, Bender MT. Prevalence of SLEC-negative spontaneous intracranial hypotension in patients with spinal nerve root sleeve diverticula on MRI. Neuroradiol J 2023; 36:736-739. [PMID: 37589060 PMCID: PMC10649535 DOI: 10.1177/19714009231196467] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023] Open
Abstract
PURPOSE While there is thought to be an association between spinal nerve root diverticula (NRD) and spontaneous intracranial hypotension (SIH) without a spinal longitudinal epidural collection (SLEC), it remains unclear what the overall prevalence of SLEC-negative SIH is in patients with NRD on MRI. METHODS Spine MRI imaging reports from our single institution were electronically screened for instances of NRD over a 9-year period (2016-2023). From these cases, patients with brain MRIs consistent with SIH were also identified. Subsequently, the overall proportion of SLEC-negative SIH was determined as a function of total cases with NRD based on spinal level. RESULTS In total, 83,843 patients with spinal MRIs were screened which identified 4174 (4.97%) with NRD. From these, there were 1203 cervical, 622 thoracic, and 2979 lumbosacral spine MRIs. In total, 16 patients (0.38%; Standard Error [SE]: 0.48%-0.28%) had a brain MRI compatible with SLEC-negative SIH and met ICHD-3 criteria. Patients with cervical NRD had SIH in 2 cases (0.16%; SE: 0.27%-0.05%). SLEC-negative SIH was present in 11 patients with lumbosacral NRD (0.34%; SE: 0.44%-0.24%). In patients with diverticula in the thoracic spine, 14 (2.3%; SE: 2.8%-1.8%) had SLEC-negative SIH. SLEC-negative SIH was significantly more prevalent in patients with thoracic diverticula compared to those with cervical (p<.0001) or lumbosacral NRD (p<.0001). CONCLUSION In patients with spinal NRD, concurrent SLEC-negative SIH is present in approximately 0.38% of patients, suggesting that in the vast majority of cases, they are an incidental finding. However, SIH is present in approximately 2.3% of patients with thoracic NRD and may be more specific for leak localization.
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Affiliation(s)
- Derrek Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, USA
- Department of Neurosurgery, University of Rochester Medical Center, USA
| | - Nathaniel Ellens
- Department of Neurosurgery, University of Rochester Medical Center, USA
| | - Rahim Ismail
- Department of Imaging Sciences, University of Rochester Medical Center, USA
| | - Clifton Houk
- Department of Neurosurgery, University of Rochester Medical Center, USA
| | - Alex Kessler
- Department of Imaging Sciences, University of Rochester Medical Center, USA
| | - Shehanaz Ellika
- Department of Imaging Sciences, University of Rochester Medical Center, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, USA
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18
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Schartz D, Susa S, Ellens N, Akkipeddi SMK, Houk C, Bhalla T, Mattingly T, Hasan D, Bender MT. Symptomatic carotid artery intraluminal thrombus: risk of medical management failure and distal embolization. J Neurointerv Surg 2023:jnis-2023-021044. [PMID: 38041660 DOI: 10.1136/jnis-2023-021044] [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: 09/18/2023] [Accepted: 11/11/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Carotid artery intraluminal thrombus (ILT), or free-floating thrombus, is an uncommon cerebrovascular entity with considerable equipoise regarding its clinical management. Likewise, in patients treated with medical management (MM), distal embolization and/or intracranial hemorrhage (ICH) may still occur. METHODS All patients with symptomatic ILT from 2016 to 2023 were identified from our tertiary care institution. Patients with MM failure (recurrent cerebral ischemia and/or symptomatic ICH) were compared with patients with MM non-failure. Differences in ILT volume and length were calculated. Receiver operator characteristic (ROC) curve analysis was used to identify the cut-off volume and length for risk of MM failure. RESULTS In total, 45 patients with ILT were identified with 41 treated with frontline MM. Of these 41 patients treated with MM, seven (17%) had MM failure with six (14.6%) having new embolic stroke and one (2.3%) with symptomatic ICH. Patients with MM failure had a significantly higher mean thrombus volume than MM non-failure patients (257 mm3 vs 59.6 mm3, P=0.0006). Likewise, patients with MM failure had significantly longer thrombus on average (21 mm vs 6.6 mm, P=0.0009). ROC curve analysis showed that an ILT volume of 90 mm3 resulted in a sensitivity of 71.4% and specificity of 85.3% for MM failure (AUC 0.775; CI 0.55 to 1.0, P=0.023). CONCLUSIONS Carotid ILTs that fail MM are significantly larger and longer. These findings suggest that a thrombus volume of 90 mm3 may serve as a guide for intervention with good sensitivity and specificity for risk of MM failure.
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Affiliation(s)
- Derrek Schartz
- Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Stephen Susa
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Nathaniel Ellens
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | | | - Clifton Houk
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Tarun Bhalla
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Thomas Mattingly
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - David Hasan
- Neurosurgery, Duke University, Durham, North Carolina, USA
| | - Matthew T Bender
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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Glance LG, Benesch CG, Joynt Maddox KE, Bender MT, Shang J, Stone PW, Lustik SJ, Nadler JW, Galton C, Dick AW. Was COVID-19 Associated With Worsening Inequities in Stroke Treatment and Outcomes? J Am Heart Assoc 2023; 12:e031221. [PMID: 37750574 PMCID: PMC10727248 DOI: 10.1161/jaha.123.031221] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/18/2023] [Indexed: 09/27/2023]
Abstract
Background COVID-19 stressed hospitals and may have disproportionately affected the stroke outcomes and treatment of Black and Hispanic individuals. Methods and Results This retrospective study used 100% Medicare Provider Analysis and Review file data from between 2016 and 2020. We used interrupted time series analyses to examine whether the COVID-19 pandemic exacerbated disparities in stroke outcomes and reperfusion therapy. Among 1 142 560 hospitalizations for acute ischemic strokes, 90 912 (8.0%) were Hispanic individuals; 162 752 (14.2%) were non-Hispanic Black individuals; and 888 896 (77.8%) were non-Hispanic White individuals. The adjusted odds of mortality increased by 51% (adjusted odds ratio [aOR], 1.51 [95% CI, 1.34-1.69]; P<0.001), whereas the rates of nonhome discharges decreased by 11% (aOR, 0.89 [95% CI, 0.82-0.96]; P=0.003) for patients hospitalized during weeks when the hospital's proportion of patients with COVID-19 was >30%. The overall rates of motor deficits (P=0.25) did not increase, and the rates of reperfusion therapy did not decrease as the weekly COVID-19 burden increased. Black patients had lower 30-day mortality (aOR, 0.70 [95% CI, 0.69-0.72]; P<0.001) but higher rates of motor deficits (aOR, 1.14 [95% CI, 1.12-1.16]; P<0.001) than White individuals. Hispanic patients had lower 30-day mortality and similar rates of motor deficits compared with White individuals. There was no differential increase in adverse outcomes or reduction in reperfusion therapy among Black and Hispanic individuals compared with White individuals as the weekly COVID-19 burden increased. Conclusions This national study of Medicare patients found no evidence that the hospital COVID-19 burden exacerbated disparities in treatment and outcomes for Black and Hispanic individuals admitted with an acute ischemic stroke.
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Affiliation(s)
- Laurent G. Glance
- Department of Anesthesiology and Perioperative MedicineUniversity of Rochester School of MedicineRochesterNY
- Department of Public Health SciencesUniversity of Rochester School of MedicineRochesterNY
- RAND Health, RANDBostonMA
| | - Curtis G. Benesch
- Department of NeurologyUniversity of Rochester School of MedicineRochesterNY
| | - Karen E. Joynt Maddox
- Department of MedicineWashington University in St. LouisSt. LouisMO
- Center for Health Economics and Policy at the Institute for Public HealthWashington University in St. LouisSt. LouisMO
| | - Matthew T. Bender
- Department of NeurosurgeryUniversity of Rochester School of MedicineRochesterNY
| | - Jingjing Shang
- Columbia School of Nursing, Center for Health PolicyNew YorkNY
| | | | - Stewart J. Lustik
- Department of Anesthesiology and Perioperative MedicineUniversity of Rochester School of MedicineRochesterNY
| | - Jacob W. Nadler
- Department of Anesthesiology and Perioperative MedicineUniversity of Rochester School of MedicineRochesterNY
| | - Christopher Galton
- Department of Anesthesiology and Perioperative MedicineUniversity of Rochester School of MedicineRochesterNY
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Schartz D, Ellens N, Kohli GS, Rahmani R, Akkipeddi SMK, Colby GP, Hui F, Bhalla T, Mattingly T, Bender MT. Impact of aspiration catheter size on clinical outcomes in aspiration thrombectomy. J Neurointerv Surg 2023; 15:e111-e116. [PMID: 35918126 DOI: 10.1136/jnis-2022-019246] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/19/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Direct aspiration thrombectomy is a well-established method for mechanical thrombectomy in acute ischemic stroke. Yet, the influence of aspiration catheter internal diameter (ID) on aspiration thrombectomy efficacy is incompletely understood. METHODS A systematic literature review and meta-regression analysis was completed to evaluate the impact of primary aspiration thrombectomy outcomes based on the ID of the aspiration catheter. Primary outcome measures were: final recanalization of modified Thrombolysis In Cerebral Ischemia (mTICI) 2b-3 with aspiration only and with rescue modalities, first pass effect (FPE), need for rescue modalities, intracranial hemorrhagic complication rates, and functional outcomes of 90-day modified Rankin Scale (mRS) of 0-2. RESULTS 30 studies were identified with 3228 patients. Meta-regression analysis revealed a significant association between increasing aspiration catheter ID and FPE (p=0.032), between ID and final recanalization with aspiration only (p=0.05), and between ID size and recanalization including cases with rescue modalities (p=0.002). Further, subgroup analysis indicated that catheters with an ID ≥0.064 inch had a lower rate of need for rescue than smaller catheters (p=0.013). Additionally, catheters with an ID ≥0.068 inch had a higher rate of intracranial bleeding complications (p=0.025). Lastly, no significant association was found in functional outcomes overall. CONCLUSIONS Larger aspiration catheters are associated with a higher rate of FPE, final recanalization with only an aspiration catheter, and in cases with rescue modalities, though with a higher rate of hemorrhagic complications. These findings confirm that aspiration catheter size functions as a variable in aspiration thrombectomy, which should be considered in future study and trial design.
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Affiliation(s)
- Derrek Schartz
- Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
| | - Nathaniel Ellens
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | | | - Redi Rahmani
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | | | - Geoffrey P Colby
- Neurosurgery, University of California Los Angeles, Los Angeles, California, USA
| | - Ferdinand Hui
- Neuroscience Institute, Division of Neurointerventional Surgery, Queen's Medical Center, Honolulu, Hawaii, USA
| | - Tarun Bhalla
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Thomas Mattingly
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Matthew T Bender
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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21
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Schartz D, Furst T, Ellens N, Kohli GS, Rahmani R, Akkipeddi SMK, Schmidt T, Bhalla T, Mattingly T, Bender MT. Preoperative Embolization of Meningiomas Facilitates Reduced Surgical Complications and Improved Clinical Outcomes : A Meta-analysis of Matched Cohort Studies. Clin Neuroradiol 2023; 33:755-762. [PMID: 36854814 DOI: 10.1007/s00062-023-01272-4] [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: 11/07/2022] [Accepted: 01/24/2023] [Indexed: 03/02/2023]
Abstract
PURPOSE The utility of preoperative embolization (PE) of intracranial meningiomas is unclear and controversial. The aim of this study was to investigate the effect of PE on meningioma surgical resection by completing a meta-analysis of matched cohort studies. METHODS A systematic review and meta-analysis of matched cohort studies was completed to evaluate the effect of PE on meningioma resection and outcomes. Outcome measures included: intraoperative blood loss, major surgical complications, total surgical complications including minor ones, total major complications including major surgical and embolization complications, total overall complications, and postoperative functional independence defined as modified Rankin Score (mRS) of 0-2. Pooled odds ratios (OR) were determined via a fixed effects model. RESULTS A total of 6 matched cohort studies were identified with 219 embolized and 215 non-embolized meningiomas. There was no significant difference in intraoperative blood loss between the two groups (P = 0.87); however, the embolization group had a significantly lower odds ratio of major surgically related complications (OR: 0.37, 95% confidence interval, CI: 0.21-0.67, P = 0.0009, I2 = 0%), but no difference in minor surgical complications (P = 0.86). While there was a significantly lower odds ratio of total overall surgical and PE-related complications in PE cases (OR: 0.64, CI: 0.41-1.0, P = 0.05, I2 = 66%), there was no difference in total combined major complications between the groups (OR: 0.57, CI: 0.27-1.18, P = 0.13, I2 = 33%). Lastly, PE was associated with a higher odds ratio of functional independence on postoperative follow-up (OR: 2.3, CI: 1.06-5.02, P = 0.04, I2 = 0%). CONCLUSION For certain meningiomas, PE facilitates lower overall complications, lower major surgical complications, and improved functional independence. Further research is required to identify the particular subset of meningiomas that benefit from PE.
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Affiliation(s)
- Derrek Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA.
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA.
| | - Taylor Furst
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Nathaniel Ellens
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Gurkirat Singh Kohli
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | | | - Tyler Schmidt
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Thomas Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
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22
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Schartz D, Manganaro M, Szekeres D, Ismail R, Hoang T, Worley L, Finkelstein A, Schartz C, Akkipeddi SMK, Bender MT, Kessler A. Direct percutaneous puncture versus transarterial embolization for head and neck paragangliomas: A systematic review and meta-analysis. Interv Neuroradiol 2023:15910199231188859. [PMID: 37455341 DOI: 10.1177/15910199231188859] [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] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
INTRODUCTION Embolization of head and neck paragangliomas (HNPs) is a well-established treatment strategy and adjunctive therapy. However, the optimal mode of intervention, whether by direct percutaneous puncture (DP) or via transarterial embolization (TAE), remains unclear. METHODS The aim of this study was to complete a systematic literature review and meta-analysis to compare the safety and efficacy of DP versus TAE for HNP embolization. The Cochrane Library and MEDLINE databases were used to identify studies describing the clinical outcomes of either DP or TAE for HNP embolization. Outcome measures included: complete angiographic devascularization, major complications, and minor complications. Pooled rates were calculated for each variable which were then compared with meta-regression using a random effects model. RESULTS Thirty-one retrospective studies met inclusion criteria, detailing 394 patients with 411 HNPs. Overall, DP was associated with a higher rate of complete devascularization (91.5%, 95% confidence interval [CI]: 85.6% to 97.4%; I2 = 0%) when compared to TAE technique (40.1%, CI: 27.2% to 58.9%; I2 = 93%). However, there was no difference regarding major complication rates between DP (6%, CI:1.3% to 10.8%; I2 = 0%) and TAE for HNP embolization (3.3%, CI: 1.4% to 5.3%; I2 = 0%) (p = 0.370), nor in minor complications between the techniques (p = 0.211). Subgroup analysis of TAE embolic agents revealed that particle embolics were associated with a significantly lower rate of major complications (2.5%; 0.4% to 4.6%; I2 = 0%) when compared to liquid embolics (10.6%, CI:4% to 17.3%; I2 = 48%; p = 0.022). CONCLUSIONS A DP approach for HNP embolization results in a higher rate of complete devascularization and with a similar complication profile when compared to TAE. These findings also suggest that particle embolics are associated with fewer major complications compared to liquid embolics when TAE is utilized.
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Affiliation(s)
- Derrek Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Mark Manganaro
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Denes Szekeres
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Rahim Ismail
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Timothy Hoang
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Logan Worley
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Alan Finkelstein
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
| | - Chelsey Schartz
- University of Kansas School of Medicine, Kansas City, KS, USA
| | | | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Alex Kessler
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, USA
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23
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Akkipeddi SM, Rahmani R, Schartz D, Chittaranjan S, Gunturi A, Bhalla T, Mattingly T, Morrell C, Bender MT. 312 Neutrophil Extracellular Trap (NET) Proteins Enriched in Emboli Retrieved from Stroke Patients with Atrial Fibrillation. Neurosurgery 2023. [DOI: 10.1227/neu.0000000000002375_312] [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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24
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Lee RP, Bhimreddy M, Kim JE, Wicks RT, Xu R, Bender MT, Jackson CM, Gonzalez LF, Tamargo RJ, Caplan JM. 565 Delayed Rupture Risk of Persistently Filling Saccular ICA Aneurysms Following Flow Diversion with the Pipeline Embolization Device. Neurosurgery 2023. [DOI: 10.1227/neu.0000000000002375_565] [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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25
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Ellens NR, Schartz D, Kohli GS, Rahmani R, Medha Akkipeddi S, Mattingly T, Bhalla T, Bender MT. 551 Middle Meningeal Artery Embolization Embolic Agents – A Systematic Review & Meta-Analysis. Neurosurgery 2023. [DOI: 10.1227/neu.0000000000002375_551] [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: 03/17/2023] Open
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26
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Furst T, Ellens NR, Bender MT, Mattingly TK. Ischemic stroke caused by spontaneous anterior circulation intracranial arterial dissections: patient series. J Neurosurg Case Lessons 2023; 5:CASE22564. [PMID: 36880515 PMCID: PMC10550662 DOI: 10.3171/case22564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/03/2023] [Indexed: 03/08/2023]
Abstract
BACKGROUND Intracranial arterial dissections (IADs) are classically associated with the vertebrobasilar system, yet are a devastating cause of ischemic stroke within the anterior circulation. Current literature regarding the surgical management of anterior circulation IAD is lacking. As a result, data on 9 patients presenting with ischemic stroke due to spontaneous anterior circulation IAD between 2019 and 2021 were collected in a retrospective manner. Symptoms, diagnostic modalities, treatment, and outcomes are presented for each case. Patients who underwent endovascular procedures had 10-minute follow-up angiography performed to identify signs of reocclusion, which prompted initiation of glycoprotein IIb/IIIa therapy and stent placement. OBSERVATIONS Seven patients underwent emergent endovascular intervention (stenting: n = 5; thrombectomy alone: n = 2). The remaining 2 were managed medically. Two patients developed progressive flow limiting stenosis requiring further intervention, 2 developed asymptomatic progressive stenosis/occlusion with robust collateral formation and the remainder have patent vasculature upon follow up imaging at 6 to 12 months. Seven patients had a modified Rankin Scale score of 1 or less at the 3-month follow-up. LESSONS IAD is a devastating yet rare cause of anterior circulation ischemic stroke. The treatment algorithm proposed resulted in positive clinical and angiographic outcomes warranting future consideration and study in the emergent management of spontaneous anterior circulation IAD.
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Jay CRG, Duncan AN, Ellika SK, Bender MT. Stents for progressively symptomatic paediatric intracranial arterial dissection. J Neurointerv Surg 2023; 15:e3. [PMID: 34103356 DOI: 10.1136/neurintsurg-2021-017464.rep] [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: 03/02/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 11/04/2022]
Abstract
Arterial dissection is an uncommon cause of paediatric stroke. Medical therapy remains first-line for treatment. There are few reports of neurovascular stents for paediatric intracranial arterial dissection. Two adolescents presented with neurological deficits and CT angiography concerning for supraclinoid internal carotid artery stenosis. The diagnosis of dissection was secured through a combination of vessel wall MRI and digital subtraction angiography. The patients experienced progressive ischaemic symptoms, despite medical management including anticoagulation, and required stenting. The stents used were a Neuroform EZ and an Atlas. Both patients recovered to Modified Rankin Scale (mRS) 0 and had restored vessel calibre on 6-month follow-up digital subtraction angiography. Neurovascular stents can be used to treat progressively symptomatic intracranial arterial dissections in the paediatric population if medical therapy fails.
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Affiliation(s)
- Catherine R G Jay
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Aubrey N Duncan
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - Shehanaz K Ellika
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
| | - Matthew T Bender
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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28
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Johnson MD, Rogers EJ, Khan MW, McMullen PD, Akkipeddi SMK, Mattingly T, Benesch CG, Bender MT. Carotid Intimal Sarcoma Presenting as Large Vessel Occlusion and Diagnosed by Embolus Histopathology: Case Report. Neurol Clin Pract 2023; 13:e200129. [PMID: 36865638 PMCID: PMC9973323 DOI: 10.1212/cpj.0000000000200129] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 11/10/2022] [Indexed: 01/20/2023]
Abstract
Objective The objective of this study was to present the clinical, histopathologic, and radiographic findings of a unique case of intimal sarcoma (IS) embolus presenting as a large vessel occlusion causing an ischemic stroke without a detectable primary tumor site. Methods Extensive examinations, multimodal imaging, laboratory testing, and histopathologic analysis were used in evaluation. Results We report the case of a patient who presented with acute embolic ischemic stroke and was found to have IS based on a histopathologic evaluation of his embolectomy specimen. Subsequent comprehensive imaging studies failed to detect a primary tumor site. Multidisciplinary interventions including a course of radiotherapy were performed. The patient died of recurrent multifocal strokes 92 days after diagnosis. Discussion Meticulous histopathologic analysis should be conducted on cerebral embolectomy specimens. Histopathology may be useful in diagnosing IS.
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Affiliation(s)
- Mahlon D Johnson
- Departments of Pathology (MDJ, PDM), Neurology (EJR, MWK, SMKA, CGB), and Neurosurgery (TM, MTB), University of Rochester Medical Center, NY
| | - Eli J Rogers
- Departments of Pathology (MDJ, PDM), Neurology (EJR, MWK, SMKA, CGB), and Neurosurgery (TM, MTB), University of Rochester Medical Center, NY
| | - Muhammad Waqas Khan
- Departments of Pathology (MDJ, PDM), Neurology (EJR, MWK, SMKA, CGB), and Neurosurgery (TM, MTB), University of Rochester Medical Center, NY
| | - Phillip D McMullen
- Departments of Pathology (MDJ, PDM), Neurology (EJR, MWK, SMKA, CGB), and Neurosurgery (TM, MTB), University of Rochester Medical Center, NY
| | - Sajal Medha K Akkipeddi
- Departments of Pathology (MDJ, PDM), Neurology (EJR, MWK, SMKA, CGB), and Neurosurgery (TM, MTB), University of Rochester Medical Center, NY
| | - Thomas Mattingly
- Departments of Pathology (MDJ, PDM), Neurology (EJR, MWK, SMKA, CGB), and Neurosurgery (TM, MTB), University of Rochester Medical Center, NY
| | - Curtis G Benesch
- Departments of Pathology (MDJ, PDM), Neurology (EJR, MWK, SMKA, CGB), and Neurosurgery (TM, MTB), University of Rochester Medical Center, NY
| | - Matthew T Bender
- Departments of Pathology (MDJ, PDM), Neurology (EJR, MWK, SMKA, CGB), and Neurosurgery (TM, MTB), University of Rochester Medical Center, NY
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29
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Kohli G, George DD, Grenga A, Santangelo G, Gosev I, Schartz D, Kessler A, Khan I, Barrus B, Gu Y, Bhalla T, Mattingly TK, Bender MT. Mechanical Thrombectomy for Ischemic Stroke Secondary to Large Vessel Occlusions in Patients on Extracorporeal Membrane Oxygenation. Cerebrovasc Dis 2023; 52:532-538. [PMID: 36716722 DOI: 10.1159/000528218] [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: 07/03/2022] [Accepted: 10/20/2022] [Indexed: 02/01/2023] Open
Abstract
INTRODUCTION The use of short-term mechanical circulatory support (MCS) devices and procedures for function- and life-sustaining therapy is becoming a routine practice at many centers. Concomitant with the increasing use of MCS is the increasing recognition of acute brain injuries, including acute ischemic stroke, which may be caused by a myriad of MCS-driven factors. The aim of this case series was to document our experience with mechanical thrombectomy (MT) for ischemic stroke in extracorporeal membrane oxygenation (ECMO) patients. METHODS We retrospectively reviewed a prospectively maintained database of patients undergoing endovascular thrombectomy for large vessel occlusion at our institution. We identified patients that were on ECMO and underwent thrombectomy. Baseline demographics and procedural and functional outcomes were collected. RESULTS Three patients on ECMO were identified to have a large vessel occlusion and underwent thrombectomy. Two patients had an internal carotid artery terminus occlusion and one had a basilar artery occlusion. An mTICI 3 recanalization was achieved in all patients without postoperative hemorrhagic complications. Two patients achieved a 3-month mRS of 1, while one had mRS 4. CONCLUSION Ischemic stroke can be associated with significant morbidity in MCS patients. We demonstrate that MT can be safely performed in this patient population with good outcomes.
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Affiliation(s)
- Gurkirat Kohli
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Derek D George
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Audrey Grenga
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Gabrielle Santangelo
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Igor Gosev
- Division of Cardiac Surgery, Department of Surgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Derrek Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
| | - Alex Kessler
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
| | - Imad Khan
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Bryan Barrus
- Baptist Health Cardiothoracic Surgery Clinic, Little Rock, Arkansas, USA
| | - Yang Gu
- Department of Anesthesiology and Perioperative Medicine, University of Rochester Medical Center, Rochester, New York, USA
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Thomas K Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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30
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Kohli GS, Schartz D, Whyte R, Akkipeddi SM, Ellens NR, Bhalla T, Mattingly TK, Bender MT. Endovascular thrombectomy with or without intravenous thrombolysis in acute basilar artery occlusion ischemic stroke: A meta-analysis. J Stroke Cerebrovasc Dis 2022; 31:106847. [DOI: 10.1016/j.jstrokecerebrovasdis.2022.106847] [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] [Received: 06/21/2022] [Revised: 10/16/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
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31
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McHugh DC, George BP, Bender MT, Horowitz RK, Kaufman DC, Holloway RG, Roberts DE. Reversal of Advanced Directives in Neurologic Emergencies. Neurohospitalist 2022; 12:651-658. [PMID: 36147771 PMCID: PMC9485691 DOI: 10.1177/19418744221097348] [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] [Indexed: 10/03/2023] Open
Abstract
Objective Patients with advanced directives or Medical Orders for Life-Sustaining Treatment (MOLST), including "Do Not Resuscitate" (DNR) and/or "Do Not Intubate" (DNI), may be candidates for procedural interventions when presenting with acute neurologic emergencies. Such interventions may limit morbidity and mortality, but typically they require MOLST reversal. We investigated outcomes of patients with MOLST reversal for treatment of neurologic emergencies. Methods We conducted a retrospective chart review from July 1, 2019 to April 30, 2021 of patients with MOLST reversal treated in our NeuroMedicine Intensive Care Unit. Variables collected include neurologic disease, MOLST reversal decision maker, procedural interventions, and outcomes. Results Twenty-seven patients (18 female, median age 78 years (IQR 73-85 years), median baseline modified Rankin score 1 [IQR 0-2.5] were identified with MOLST reversal. The most common pre-procedural MOLST was DNR/DNI (n=22, 81%), and 93% (n=25) pre-procedural MOLSTs were completed by the patient. MOLSTs were reversed by surrogates in n=23 cases (85%). The median time from MOLST completion to MOLST reversal was 603 days (IQR 45 days to 4 years). The most common neurologic emergency was ischemic stroke (n=14, 52%). Most patients died (n=14, 52%), 26% (n=7) were discharged to skilled nursing, and 22% (n=6) returned to home or assisted living. Conclusions In neurologic emergencies, urgent shared decision making is needed to ensure goal-concordant care, which may result in reversal of existing advanced directives. Outcomes of patients with MOLST reversal were heterogeneous, emphasizing the importance of deliberate patient-centered care weighing the risks and benefits of each intervention.
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Affiliation(s)
- Daryl C. McHugh
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Benjamin P. George
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Matthew T. Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Robert K. Horowitz
- Department of Medicine, Division of Palliative Care, University of Rochester Medical Center, Rochester, NY, USA
| | - David C. Kaufman
- Critical Care Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Robert G. Holloway
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
| | - Debra E. Roberts
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
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Schartz D, Rahmani R, Gunturi A, Kohli GS, Akkipeddi SMK, Ellens NR, Romiyo P, Kessler A, Bhalla T, Mattingly TK, Bender MT. Observation versus intervention for Borden type I intracranial dural arteriovenous fistula: A pooled analysis of 469 patients. Interv Neuroradiol 2022:15910199221127070. [PMID: 36113111 DOI: 10.1177/15910199221127070] [Citation(s) in RCA: 1] [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] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND While it is thought that Borden Type I intracranial dural arteriovenous fistula (dAVF) have a benign clinical course, their management remains controversial. METHODS A comparative meta-analysis was completed to evaluate the outcomes of intervention verses observation of Borden Type I intracranial dAVF. Outcome measures included: grade progression, worsening symptoms, death due to dAVF, permanent complications other than death, functional independence (mRS 0-2), and rate of death combined with permanent complication, were evaluated. Risk differences (RD) were determined using a random effects model. RESULTS Three comparative studies combined with the authors' institutional experience resulted in a total of 469 patients, with 279 patients who underwent intervention and 190 who were observed. There was no significant difference in dAVF grade progression between the intervention and observation arms, 1.8% vs. 0.7%, respectively (RD: 0.01, 95% CI: -0.02 to 0.04, P = 0.49), or in symptom progression occurring in 31/279 (11.1%) intervention patients and 11/190 (5.8%) observation patients (RD: 0.03, CI: -0.02 to 0.09, P = 0.28). There was also no significant difference in functional independence on follow up. However, there was a significantly higher risk of dAVF related death, permanent complication from either intervention or dAVF related ICH or stroke in the intervention group (11/279, 3.9%) compared to the observation group (0/190, 0%) (RD: 0.04, CI: 0.1 to 0.06, P = 0.007). CONCLUSION Intervention of Borden Type I dAVF results in a higher risk of death or permanent complication, which should be strongly considered when deciding on management of these lesions.
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Affiliation(s)
- Derrek Schartz
- Department of Imaging Sciences, 6923University of Rochester Medical Center, Rochester, NY, USA
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Aditya Gunturi
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Gurkirat Singh Kohli
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | | | - Nathaniel R Ellens
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Prasanth Romiyo
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Alex Kessler
- Department of Imaging Sciences, 6923University of Rochester Medical Center, Rochester, NY, USA
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Thomas K Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA
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Kohli GS, Whyte R, Schartz D, Rahmani R, Ellens NR, Susa ST, Bhalla T, Mattingly TK, Bender MT. Approaches to and outcomes of intra-arterial tPA in embolectomy for large vessel occlusion. J Stroke Cerebrovasc Dis 2022; 31:106717. [PMID: 35994881 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106717] [Citation(s) in RCA: 1] [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: 03/16/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022] Open
Abstract
INTRODUCTION Intra-arterial tissue plasminogen activator (IA tPA) is sometimes used in conjunction with aspiration catheters and stentrievers to achieve recanalization in endovascular thrombectomy (ET) for large vessel occlusion (LVO). Reports of safety and efficacy of this approach are limited by technical heterogeneity and sample size. METHODS We retrospectively reviewed a data set of patients undergoing ET for LVO between August 2017 and September 2020 to identify those that received IA tPA. IA tPA usage, timing and dosage was at the discretion of the operative neurosurgeon. We identified three broad categories of IA tPA administration: (1) adjunctive with the first pass; (2) salvage with subsequent passes after first pass achieved incomplete revascularization; and (3) post-thrombectomy residual distal occlusions. Univariate and multivariate logistic regression were performed to test associations with recanalization, hemorrhage, and functional independence. RESULTS Among 271 patients, 158 (58%) patients had IA tPA, of which 83 received adjuvant IA tPA, 60 received salvage IA tPA, and 15 received post-thrombectomy IA tPA for distal occlusions. There were no differences in demographics, stroke etiology and premorbid medications between these groups. Patients receiving salvage IA tPA had longer times from groin access to recanalization and more passes, as expected. On multivariate analysis neither adjunctive nor salvage IA tPA was significantly associated with recanalization, post-operative hemorrhage, or functional outcomes. On univariate analysis, patients receiving salvage IA tPA had lower rates of TICI 3 or 2b revascularization (80% vs. 89% adjunctive and 92% no IA tPA, p = 0.003) and higher rates of any postoperative hemorrhage (33% vs. 22% adjunctive and 19% no IA tPA, p = 0.003). CONCLUSIONS In this retrospective, single-institution series, IA tPA used adjunctively or as salvage therapy in ET for LVO was not associated with recanalization, post-operative hemorrhage, or functional outcomes, suggesting IA tPA is an available modality that can be utilized in cases of recalcitrant clots.
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Affiliation(s)
- Gurkirat Singh Kohli
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States.
| | - Racquel Whyte
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Derrek Schartz
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Nathaniel R Ellens
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Stephen T Susa
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Thomas K Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
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Ellens NR, Schartz D, Rahmani R, Akkipeddi SMK, Kelly AG, Benesch CG, Parker SA, Burgett JL, Proper D, Pilcher WH, Mattingly TK, Grotta JC, Bhalla T, Bender MT. Mobile Stroke Unit Operational Metrics: Institutional Experience, Systematic Review and Meta-Analysis. Front Neurol 2022; 13:868051. [PMID: 35614916 PMCID: PMC9124821 DOI: 10.3389/fneur.2022.868051] [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: 02/02/2022] [Accepted: 04/19/2022] [Indexed: 11/26/2022] Open
Abstract
Background The available literature on mobile stroke units (MSU) has focused on clinical outcomes, rather than operational performance. Our objective was to establish normalized metrics and to conduct a meta-analysis of the current literature on MSU performance. Methods Our MSU in upstate New York serves 741,000 people. We present prospectively collected, retrospectively analyzed data from the inception of our MSU in October of 2018, through March of 2021. Rates of transportation/dispatch and MSU utilization were reported. We also performed a meta-analysis using MEDLINE, SCOPUS, and Cochrane Library databases, calculating rates of tPA/dispatch, tPA-per-24-operational-hours (“per day”), mechanical thrombectomy (MT)/dispatch and MT/day. Results Our MSU was dispatched 1,719 times in 606 days (8.5 dispatches/24-operational-hours) and transported 324 patients (18.8%) to the hospital. Intravenous tPA was administered in 64 patients (3.7% of dispatches) and the rate of tPA/day was 0.317 (95% CI 0.150–0.567). MT was performed in 24 patients (1.4% of dispatches) for a MT/day rate of 0.119 (95% CI 0.074–0.163). The MSU was in use for 38,742 minutes out of 290,760 total available minutes (13.3% utilization rate). Our meta-analysis included 14 articles. Eight studies were included in the analysis of tPA/dispatch (342/5,862) for a rate of 7.2% (95% CI 4.8–9.5%, I2 = 92%) and 11 were included in the analysis of tPA/day (1,858/4,961) for a rate of 0.358 (95% CI 0.215–0.502, I2 = 99%). Seven studies were included for MT/dispatch (102/5,335) for a rate of 2.0% (95% CI 1.2–2.8%, I2 = 67%) and MT/day (103/1,249) for a rate of 0.092 (95% CI 0.046–0.138, I2 = 91%). Conclusions In this single institution retrospective study and meta-analysis, we outline the following operational metrics: tPA/dispatch, tPA/day, MT/dispatch, MT/day, and utilization rate. These metrics are useful for internal and external comparison for institutions with or considering developing mobile stroke programs.
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Affiliation(s)
- Nathaniel R. Ellens
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Derrek Schartz
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, NY, United States
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Sajal Medha K. Akkipeddi
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Adam G. Kelly
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, United States
| | - Curtis G. Benesch
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, United States
| | - Stephanie A. Parker
- Department of Neurology, University of Texas McGovern Medical School, Houston, TX, United States
| | - Jason L. Burgett
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Diana Proper
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Webster H. Pilcher
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Thomas K. Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - James C. Grotta
- Mobile Stroke Unit, Memorial Hermann Hospital—Texas Medical Center, Houston, TX, United States
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Matthew T. Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
- *Correspondence: Matthew T. Bender
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Schartz DA, Ellens NR, Kohli GS, Akkipeddi SMK, Colby GP, Bhalla T, Mattingly TK, Bender MT. A Meta-analysis of Combined Aspiration Catheter and Stent Retriever versus Stent Retriever Alone for Large-Vessel Occlusion Ischemic Stroke. AJNR Am J Neuroradiol 2022; 43:568-574. [PMID: 35301225 PMCID: PMC8993196 DOI: 10.3174/ajnr.a7459] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 11/09/2021] [Accepted: 01/11/2022] [Indexed: 01/14/2023]
Abstract
BACKGROUND The efficacy of combined aspiration catheter and stent retriever compared with stent retriever alone for the treatment of large-vessel occlusion acute ischemic stroke is unclear. PURPOSE Our aim was to conduct a systematic literature review and meta-analysis on several metrics of efficacy comparing aspiration catheter and stent retriever with stent retriever alone. DATA SOURCES MEDLINE and the Cochrane Library Databases were searched. Randomized controlled trials and case-control and cohort studies were included. STUDY SELECTION Ten comparative studies were included detailing a combined 1495 patients with aspiration catheter and stent retriever and 1864 with stent retrievers alone. DATA ANALYSIS Data on first pass effect (TICI 2b/2c/3 after first pass), final successful reperfusion (modified TICI ≥2b), and 90-day functional independence (mRS ≤ 2) were collected. Meta-analysis was performed using a random-effects model. DATA SYNTHESIS There was a pooled composite first pass effect of 40.8% (611/1495) versus 32.6% (608/1864) for aspiration catheter and stent retriever and stent retriever alone, respectively (P < .0001). Similarly, on a meta-analysis, aspiration catheter and stent retriever were associated with a higher first pass effect compared with stent retriever alone (OR = 1.63; 95% CI, 1.20-2.21; P = .002; I2 = 72%). There was no significant difference in composite rates of successful reperfusion between aspiration catheter and stent retriever (72.8%, 867/1190) and stent retriever alone (70.8%, 931/1314) (P = .27) or on meta-analysis (OR = 1.31; CI, 0.81-2.12; P = .27; I2 = 82%). No difference was found between aspiration catheter and stent retriever and stent retriever alone on 90-day functional independence (OR = 1.02; 95% CI, 0.77-1.36; P = .88; I2 = 40%). LIMITATIONS This study is limited by high interstudy heterogeneity. CONCLUSIONS On meta-analysis, aspiration catheter and stent retriever are associated with a superior first pass effect compared with stent retriever alone, but they are not associated with statistically different final reperfusion or functional independence.
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Affiliation(s)
- D A Schartz
- From the Departments of Imaging Sciences (D.A.S.)
| | - N R Ellens
- Neurosurgery (N.R.E., G.S.K., S.M.K.A., T.B., T.K.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - G S Kohli
- Neurosurgery (N.R.E., G.S.K., S.M.K.A., T.B., T.K.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - S M K Akkipeddi
- Neurosurgery (N.R.E., G.S.K., S.M.K.A., T.B., T.K.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - G P Colby
- Department of Neurological Surgery (G.P.C.), University of California Los Angeles, Los Angeles, California
| | - T Bhalla
- Neurosurgery (N.R.E., G.S.K., S.M.K.A., T.B., T.K.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - T K Mattingly
- Neurosurgery (N.R.E., G.S.K., S.M.K.A., T.B., T.K.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
| | - M T Bender
- Neurosurgery (N.R.E., G.S.K., S.M.K.A., T.B., T.K.M., M.T.B.), University of Rochester Medical Center, Rochester, New York
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Mattingly TK, Risco JE, Burch JE, Whyte R, Kohli GS, Susa S, Bhalla T, Bender MT. Endovascular Therapy is Effective for Large Vessel Occlusion Despite Concurrent Cancer. J Stroke Cerebrovasc Dis 2022; 31:106439. [PMID: 35313233 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106439] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 10/26/2021] [Revised: 02/19/2022] [Accepted: 02/23/2022] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Ischemic stroke and concurrent cancer is increasingly recognized. However, optimal management is uncertain. As mechanical thrombectomy has become the standard of care for large vessel occlusion, more patients with cancer are presenting for embolectomy. However, it is unknown whether this subgroup has the same benefit profile described in multiple randomized trials for thrombectomy for large vessel occlusion. Our objective was to retrospectively evaluate a North American embolectomy database for safety and outcomes in patients with active cancer. MATERIALS AND METHODS A case series of 284 embolectomies over 30 months at a single North American stroke center were divided into thrombectomy patients with active cancer(n=25) and those without active cancer (n=259). We compared patient characteristics, procedural characteristics, and procedural outcomes between patients with and without active cancer. Univariate and multivariate analysis of angiographic outcomes, postoperative hemorrhage, and functional outcome was performed. RESULTS Of the 284 thrombectomy cases, 9% were performed on patients with active cancer. Active cancer patients had a similar recanalization grade and post-operative hemorrhage rate, compared to patients without cancer. Active cancer patients had a significantly higher 90 day mortality (40% vs 20%, p=0.018). On multivariate analysis, good functional outcome (mRS 0-2) was not impacted by active cancer. However, when mRS was evaluated as an ordinal shift analysis, worse functional outcome was associated with active cancer (OR 2.98; 95% CI, 1.29 to 6.59), greater age, NIHSS> 10, and ASPECTS<9. CONCLUSIONS This single center retrospective series of active cancer patients undergoing thrombectomy for large vessel occlusion demonstrates similar rates of recanalization, post-operative hemorrhage, and good outcomes. While the active cancer group has a high short-term mortality, the potential to maintain quality of life in the survivors makes thrombectomy reasonable in this patient population. Awareness of ischemic stroke as a complication of cancer and the safety of thrombectomy in this population are important as this population subtype is expected to grow with improved oncology and stroke care.
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Affiliation(s)
- Thomas K Mattingly
- Dept of Neurosurgery, University of Rochester, Rochester, NY. 585-273-1900, United States.
| | - Jorge E Risco
- Dept of Neurology, University of Rochester, Rochester, NY. 585-275-2776, United States
| | - Jaclyn E Burch
- Dept of Neurology, University of Rochester, Rochester, NY. 585-275-2776, United States
| | - Raquel Whyte
- Dept of Neurosurgery, University of Rochester, Rochester, NY. 585-273-1900, United States
| | - Gurkirat S Kohli
- Dept of Neurosurgery, University of Rochester, Rochester, NY. 585-273-1900, United States
| | - Stephen Susa
- Dept of Neurosurgery, University of Rochester, Rochester, NY. 585-273-1900, United States
| | - Tarun Bhalla
- Dept of Neurosurgery, University of Rochester, Rochester, NY. 585-273-1900, United States
| | - Matthew T Bender
- Dept of Neurosurgery, University of Rochester, Rochester, NY. 585-273-1900, United States
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Akkipeddi SMK, Ellens NR, Schartz D, Rahmani R, Kelly AG, Benesch CG, Burgett JL, Lesperance J, Proper D, Mattingly TK, Pilcher WH, Bhalla T, Bender MT. Abstract TMP28: Decision For Tpa Administration, Not Drive Time, Contributes Most To Variance In Thrombolysis Times Onboard Mobile Stroke Unit. Stroke 2022. [DOI: 10.1161/str.53.suppl_1.tmp28] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction:
Hospitals have improved stroke thrombolysis times through rigorous assessment of care delays. While mobile stroke units (MSU) expedite intravenous thrombolysis for acute ischemic stroke, the same rigor has not been applied to this novel setting.
Methods:
We reviewed all cases of intravenous tissue plasminogen activator (tPA) administration onboard our mobile stroke unit in Rochester, NY since its inception in 2019. The dispatch timeline was divided into six intervals: (1) drive time, (2) onboarding time, (3) HCT collection, (4) HCT reading, (5) decision time, and (6) tPA administration. Cases in which tPA was delayed due to medical contraindications or inability to obtain consent were not included in the analysis.
Results:
The mean ± SD total time between MSU dispatch and tPA was 42 ± 8.4 min (range: 26-60 min; N = 53). The longest interval was (1) drive time (between dispatch and arrival, 12.0 ± 4.7 min). However, the inter-case variation was greatest in (5) decision time (between HCT reading and treatment decision, 6.3 ± 6.2 min). After ranking cases by total time, the interval that had the widest variance between the first and fourth quartiles was decision time (2.45x). The other intervals varied by a factor of 1.50x for (6) tPA administration and less than 1.00x for the other four intervals. Decision time was the interval most closely correlated with total time (Spearman’s ρ = 0.46; p = 0.00051), which was reduced in our second year of operation (38.8 from 44.6 minutes; Mann-Whitney, Z = 2.38, p = 0.02). Decision time was negatively correlated with time since inception of the MSU (Spearman’s ρ = -0.29, p = 0.037), suggesting that improvements in decision time drove improvements in overall thrombolysis time.
Conclusion:
The largest driver of variation in total time from emergency alert to tPA administration is provider decision time in our MSU program. This observation should be investigated in other settings but may ultimately inform MSU training and staffing.
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Affiliation(s)
| | | | - Derrek Schartz
- Dept of Imaging Sciences, Univ of Rochester Med Cntr, Rochester, NY
| | - Redi Rahmani
- Dept of Neurosurgery, Univ of Rochester Med Cntr, Rochester, NY
| | - Adam G Kelly
- Dept of Neurology, Univ of Rochester Med Cntr, Rochester, NY
| | | | - Jason L Burgett
- Dept of Neurosurgery, Univ of Rochester Med Cntr, Rochester, NY
| | | | - Diana Proper
- Dept of Neurosurgery, Univ of Rochester Med Cntr, Rochester, NY
| | | | | | - Tarun Bhalla
- Dept of Neurosurgery, Univ of Rochester Med Cntr, Rochester, NY
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Bender MT, Mattingly TK, Rahmani R, Proper D, Burnett WA, Burgett JL, LEsperance J, Cushman JT, Pilcher WH, Benesch CG, Kelly AG, Bhalla T. Mobile stroke care expedites intravenous thrombolysis and endovascular thrombectomy. Stroke Vasc Neurol 2021; 7:209-214. [PMID: 34952889 PMCID: PMC9240459 DOI: 10.1136/svn-2021-001119] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 08/16/2021] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND The number of mobile stroke programmes has increased with evidence, showing they expedite intravenous thrombolysis. Outstanding questions include whether time savings extend to patients eligible for endovascular therapy and impact clinical outcomes. OBJECTIVE Our mobile stroke unit (MSU), based at an academic medical centre in upstate New York, launched in October 2018. We reviewed prospective observational data sets over 26 months to identify MSU and non-MSU emergency medical service (EMS) patients who underwent intravenous thrombolysis or endovascular thrombectomy for comparison of angiographic and clinical outcomes. RESULTS Over 568 days in service, the MSU was dispatched 1489 times (2.6/day) and transported 300 patients (20% of dispatches). Intravenous tissue plasminogen activator (tPA) was administered to 57 MSU patients and the average time from 911 call-to-tPA was 42.5 min (±9.2), while EMS transported 73 patients who received tPA at 99.4 min (±35.7) (p<0.001). Seven MSU patients (12%) received tPA from 3.5 hours to 4.5 hours since last known well and would likely have been outside the window with EMS care. Endovascular thrombectomy was performed on 21 MSU patients with an average 911 call-to-groin puncture time of 99.9 min (±18.1), while EMS transported 54 patients who underwent endovascular thrombectomy (ET) at 133.0 min (±37.0) (p=0.0002). There was no difference between MSU and traditional EMS in modified Rankin score at 90-day clinic follow-up for patients undergoing intravenous thrombolysis or endovascular thrombectomy, whether assessed as a dichotomous or ordinal variable. CONCLUSIONS Mobile stroke care expedited both intravenous thrombolysis and endovascular thrombectomy. There is an ongoing need to show improved functional outcomes with MSU care.
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Affiliation(s)
- Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Thomas K Mattingly
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Diana Proper
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Walter A Burnett
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Jason L Burgett
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Joshua LEsperance
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Jeremy T Cushman
- Department of Emergency Medicine, University of Rochester Medical Center, Rochester, New York, USA
| | - Webster H Pilcher
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Curtis G Benesch
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - Adam G Kelly
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - Tarun Bhalla
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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Liu A, Rincon-Torroella J, Bender MT, McDougall CG, Tufaro AP, London NR, Coon AL, Reh DD, Gallia GL. Combined Pipeline Embolization Device with Endoscopic Endonasal Fascia Lata/Muscle Graft Repair as a Salvage Technique for Treatment of Iatrogenic Carotid Artery Pseudoaneurysm. J Neurol Surg Rep 2021; 82:e43-e48. [PMID: 34877246 PMCID: PMC8635816 DOI: 10.1055/s-0041-1735284] [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: 09/15/2020] [Accepted: 01/14/2021] [Indexed: 11/16/2022] Open
Abstract
The incidence of internal carotid artery (ICA) injury associated with endoscopic endonasal approaches to the pituitary is less than 1%. While parent vessel sacrifice has historically been the choice of treatment, vessel-preserving endovascular techniques have been reported. Although flow diversion offers endoluminal reconstruction, its major limitation is the delay in obtaining complete occlusion. We describe the use of a combined Pipeline embolization device (PED) with endoscopic endonasal repair using a fascia lata/muscle graft to treat an iatrogenic ICA pseudoaneurysm and report long-term radiographic follow-up. Further investigation into the utility of directed endoscopic endonasal repair of iatrogenic pseudoaneurysms initially treated with PED is necessary, especially given the need of post-PED anticoagulation and the rate of permanent neurological deficit after ICA sacrifice.
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Affiliation(s)
- Ann Liu
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, United States
| | | | - Matthew T Bender
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, United States.,Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, United States
| | - Cameron G McDougall
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, United States
| | - Anthony P Tufaro
- Department of Plastic and Reconstructive Surgery, Johns Hopkins Hospital, Baltimore, Maryland, United States.,Division of Plastic Surgery, Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States
| | - Nyall R London
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, Maryland, United States
| | - Alexander L Coon
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, United States.,Department of Neurosurgery, Carondelet Neurological Institute, Tucson, Arizona, United States
| | - Douglas D Reh
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, Maryland, United States.,Department of Otolaryngology-Head and Neck Surgery, Greater Baltimore Medical Center, Baltimore, Maryland, United States
| | - Gary L Gallia
- Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland, United States.,Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, Maryland, United States
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Schartz D, Mattingly TK, Rahmani R, Ellens N, Akkipeddi SMK, Bhalla T, Bender MT. Noncurative microsurgery for cerebral aneurysms: a systematic review and meta-analysis of wrapping, residual, and recurrence rates. J Neurosurg 2021; 137:1-11. [PMID: 34798602 DOI: 10.3171/2021.9.jns211698] [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: 07/10/2021] [Accepted: 09/03/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Microsurgery for cerebral aneurysms is called definitive, yet some patients undergo a craniotomy that results in noncurative treatment. Furthermore, the overall rate of noncurative microsurgery for cerebral aneurysms is unclear. The objective of this study was to complete a systematic review and meta-analysis to quantify three scenarios of noncurative treatment: aneurysm wrapping, postclipping remnants, and late regrowth of completely obliterated aneurysms. METHODS A PRISMA-guided systematic literature review of the MEDLINE and Cochrane Library databases and meta-analysis was completed. Studies were included that detailed rates of aneurysm wrapping, residua confirmed with imaging, and regrowth after confirmed total occlusion. Pooled rates were subsequently calculated using a random-effects model. An assessment of statistical heterogeneity and publication bias among the included studies was also completed for each analysis, with resultant I2 values and p values determined with Egger's test. RESULTS Sixty-four studies met the inclusion criteria for final analysis. In 41 studies, 573/15,715 aneurysms were wrapped, for a rate of 3.5% (95% CI 2.7%-4.2%, I2 = 88%). In 43 studies, 906/13,902 aneurysms had residual neck or dome filling, for a rate of 6.4% (95% CI 5.2%-7.6%, I2 = 93%). In 15 studies, 71/2568 originally fully occluded aneurysms showed regrowth, for a rate of 2.1% (95% CI 1.2%-3.1%, I2 = 58%). Together, there was a total rate of noncurative surgery of 12.0% (95% CI 11.5%-12.5%). Egger's test suggested no significant publication bias among the studies. Meta-regression analysis revealed that the reported rate of aneurysm wrapping has significantly declined over time, whereas the rates of aneurysm residua and recurrence have not significantly changed. CONCLUSIONS Open microsurgery for cerebral aneurysm results in noncurative treatment approximately 12% of the time. This metric may be used to counsel patients and as a benchmark for other treatment modalities. This investigation is limited by the high degree of heterogeneity among the included studies.
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Affiliation(s)
- Derrek Schartz
- 1Department of Imaging Sciences, University of Rochester Medical Center, Rochester, New York; and
- 2Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York
| | - Thomas K Mattingly
- 2Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York
| | - Redi Rahmani
- 2Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York
| | - Nathaniel Ellens
- 2Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York
| | | | - Tarun Bhalla
- 2Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York
| | - Matthew T Bender
- 2Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York
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Bender MT, Young RW, Zarrin DA, Campos JK, Caplan JM, Huang J, Tamargo RJ, Lin LM, Colby GP, Coon AL. Twisting: Incidence and Risk Factors of an Intraprocedural Challenge Associated With Pipeline Flow Diversion of Cerebral Aneurysms. Neurosurgery 2021. [DOI: 10.1093/neuros/nyaa309_s059] [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: 11/13/2022] Open
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42
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Schartz D, Akkipeddi SMK, Ellens N, Rahmani R, Kohli GS, Bruckel J, Caplan JM, Mattingly TK, Bhalla T, Bender MT. Complications of transradial versus transfemoral access for neuroendovascular procedures: a meta-analysis. J Neurointerv Surg 2021; 14:820-825. [PMID: 34479985 DOI: 10.1136/neurintsurg-2021-018032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 07/14/2021] [Accepted: 08/23/2021] [Indexed: 11/04/2022]
Abstract
BACKGROUND Transradial access (TRA) has gained increased usage among neurointerventionalists. However, the overall safety profile of access site complications (ASCs) and non-access site complications (NASCs) of TRA versus transfemoral access (TFA) for neuroendovascular procedures remains unclear. METHODS A systematic literature review and meta-analysis using a random effects model was conducted to investigate the pooled odds ratios (OR) of ASCs and NASCs. Randomized, case-control, and cohort studies comparing access-related complications were analyzed. An assessment of study heterogeneity and publication bias was also completed. RESULTS Seventeen comparative studies met the inclusion criteria for final analysis. Overall, there was a composite ASC rate of 1.8% (49/2767) versus 3.2% (168/5222) for TRA and TFA, respectively (P<0.001). TRA was associated with a lower odds of ASC compared with TFA (OR 0.42; 95% CI 0.25 to 0.68, P<0.001, I2=31%). There was significantly lower odds of complications within the intervention and diagnostic subgroups. For NASC, TRA had a lower composite incidence of complications than TFA at 1.2% (31/2586) versus 4.2% (207/4909), P<0.001). However, on meta-analysis, we found no significant difference overall between TRA and TFA for NASCs (OR 0.79; 95% CI 0.51 to 1.22, P=0.28, I2=0%), which was also the case on subgroup analysis. CONCLUSION On meta-analysis, the current literature indicates that TRA is associated with a lower incidence of ASCs compared with TFA, but is not associated with a lower rate of NASCs.
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Affiliation(s)
- Derrek Schartz
- Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
| | | | - Nathaniel Ellens
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Redi Rahmani
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | | | - Jeffrey Bruckel
- Cardiology, University of Rochester Medical Center, Rochester, New York, USA
| | - Justin M Caplan
- Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Thomas K Mattingly
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Tarun Bhalla
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Matthew T Bender
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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43
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Xia Y, Kim TY, Mashouf LA, Patel KK, Xu R, Casaos J, Choi J, Kim ES, Hung AL, Wu A, Garzon-Muvdi T, Bender MT, Jackson CM, Bettegowda C, Lim M. Absence of Ischemic Injury after Sacrificing the Superior Petrosal Vein during Microvascular Decompression. Oper Neurosurg (Hagerstown) 2021; 18:316-320. [PMID: 31214696 DOI: 10.1093/ons/opz163] [Citation(s) in RCA: 9] [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] [Received: 11/13/2018] [Accepted: 03/25/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Sacrificing the superior petrosal vein (SPV) is controversial during a microvascular decompression (MVD). There have been multiple reports of complications including life-threatening brainstem infarction and cerebellar edema. OBJECTIVE To analyze the potential for vascular complications when the SPV is sacrificed during an MVD. METHODS Retrospective chart review was performed to identify all MVDs for trigeminal neuralgia and hemifacial spasm from 2007 to 2018 at 1 institution. Cases with ≥1 mo of follow-up were included and SPV sacrifice was noted. The primary outcome was complications related to SPV sacrifice including sinus thrombosis, cerebellar edema, and midbrain or pontine infarction. Imaging was used to confirm all potential vascular complications noted in medical records. Fisher's exact test and unpaired t-tests were used to compare between groups. RESULTS A total of 732 MVD cases were identified and 592 met inclusion criteria with an average follow-up of 11.8 ± 16.4 mo and a male-to-female ratio of 1:2.2. The SPV was sacrificed in 217 cases and retained in 375 cases. No SPV-related vascular complications were found in this study. Two unrelated cases of vascular complications were identified and both were in the nonsacrificed group. One case involved cerebellar bleeding while the other was an ipsilateral transverse sinus thrombosis that was present preoperatively. CONCLUSION In MVDs, there is no difference in the rate of vascular complications when the SPV is sacrificed compared to preserved. To best visualize a cranial nerve and optimize safe decompression, surgeons should feel free to sacrifice the SPV.
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Affiliation(s)
- Yuanxuan Xia
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Timothy Y Kim
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Leila A Mashouf
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Kisha K Patel
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Risheng Xu
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Joshua Casaos
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - John Choi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Eileen S Kim
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alice L Hung
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Adela Wu
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Tomas Garzon-Muvdi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Matthew T Bender
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Christopher M Jackson
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Chetan Bettegowda
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Michael Lim
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Jay CRG, Duncan AN, Ellika SK, Bender MT. Stents for progressively symptomatic paediatric intracranial arterial dissection. BMJ Case Rep 2021; 14:14/5/e017464. [PMID: 34059529 DOI: 10.1136/bcr-2021-017464] [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] [Indexed: 11/04/2022] Open
Abstract
Arterial dissection is an uncommon cause of paediatric stroke. Medical therapy remains first-line for treatment. There are few reports of neurovascular stents for paediatric intracranial arterial dissection. Two adolescents presented with neurological deficits and CT angiography concerning for supraclinoid internal carotid artery stenosis. The diagnosis of dissection was secured through a combination of vessel wall MRI and digital subtraction angiography. The patients experienced progressive ischaemic symptoms, despite medical management including anticoagulation, and required stenting. The stents used were a Neuroform EZ and an Atlas. Both patients recovered to Modified Rankin Scale (mRS) 0 and had restored vessel calibre on 6-month follow-up digital subtraction angiography. Neurovascular stents can be used to treat progressively symptomatic intracranial arterial dissections in the paediatric population if medical therapy fails.
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Affiliation(s)
- Catherine R G Jay
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Aubrey N Duncan
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, USA
| | - Shehanaz K Ellika
- Department of Imaging Sciences, University of Rochester Medical Center, Rochester, New York, USA
| | - Matthew T Bender
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
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45
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Feghali J, Gami A, Rapaport S, Bender MT, Jackson CM, Caplan JM, McDougall CG, Huang J, Tamargo RJ. Aging Patient Population With Ruptured Aneurysms: Trend Over 28 Years. Neurosurgery 2021; 88:658-665. [PMID: 33370795 DOI: 10.1093/neuros/nyaa494] [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: 07/23/2020] [Accepted: 09/09/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Given increasing life expectancy in the United States and worldwide, the proportion of elderly patients affected by aneurysmal subarachnoid hemorrhage (aSAH) would be expected to increase. OBJECTIVE To determine whether an aging trend exists in the population of aSAH patients presenting to our institution over a 28-yr period. METHODS A prospectively maintained database of consecutive patients presenting to our institution with subarachnoid hemorrhage between January 1991 and December 2018 was utilized. The 28-yr period was categorized into 4 successive 7-yr quarter intervals. The age of patients was compared among these intervals, and yearly trends were derived using linear regression. RESULTS The cohort consisted of 1671 ruptured aneurysm patients with a mean age of 52.8 yr (standard deviation = 15.0 yr). Over the progressive 7-yr time intervals during the 28-yr period, there was an approximately 4-fold increase in the proportion of patients aged 80 yr or above (P < .001) and an increase in mean patient age from 51.2 to 54.6 yr (P = .002). Independent of this trend but along the same lines, there was a 29% decrease in the proportion of younger patients (<50 yr) from 49% to 35%. On linear regression, there was 1-yr increase in mean patient age per 5 calendar years (P < .001). CONCLUSION Analyses of aSAH patients demonstrate an increase in patient age over time with a considerable rise in the proportion of octogenarian patients and a decrease in patients younger than 50 yr. This aging phenomenon presents a challenge to the continued improvement in outcomes of aSAH patients.
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Affiliation(s)
- James Feghali
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Abhishek Gami
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Sarah Rapaport
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Matthew T Bender
- Department of Neurosurgery, University of Rochester School of Medicine and Dentistry, Rochester, New York
| | - Christopher M Jackson
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Justin M Caplan
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Cameron G McDougall
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Judy Huang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Rafael J Tamargo
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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46
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Townsend RK, Jost A, Amans MR, Hui F, Bender MT, Satti SR, Maurer R, Liu K, Brinjikji W, Fargen KM. Major complications of dural venous sinus stenting for idiopathic intracranial hypertension: case series and management considerations. J Neurointerv Surg 2021; 14:neurintsurg-2021-017361. [PMID: 33911014 DOI: 10.1136/neurintsurg-2021-017361] [Citation(s) in RCA: 9] [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] [Received: 01/27/2021] [Revised: 04/13/2021] [Accepted: 04/14/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Venous sinus stenting (VSS) is a safe, effective, and increasingly popular treatment option for selected patients with idiopathic intracranial hypertension (IIH). Serious complications associated with VSS are rarely reported. METHODS Serious complications after VSS were identified retrospectively from multicenter databases. The cases are presented and management strategies are discussed. RESULTS Six major acute and chronic complications after VSS were selected from a total of 811 VSS procedures and 1466 venograms for IIH. These included an acute subdural hematoma from venous extravasation, cases of both intraprocedural and delayed stent thrombosis, an ultimately fatal cerebellar hemorrhage resulting in acute obstructive hydrocephalus, venous microcatheter perforation during venography and manometry, and a patient who developed subarachnoid hemorrhage and subdural hematoma after cerebellar cortical vein perforation. The six cases are reviewed and learning points regarding complication avoidance and management are presented. CONCLUSION We report on six rare, major complications after VSS for IIH. Familiarity with these potential complications and appropriate timely management may allow for good clinical outcomes.
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Affiliation(s)
- Robert Kyle Townsend
- Neurological Surgery, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Alec Jost
- Wake Forest School of Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Matthew R Amans
- Radiology and Biomedical Imaging, UCSF, San Francisco, California, USA
| | - Ferdinand Hui
- Radiology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Matthew T Bender
- Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
| | | | - Robert Maurer
- Neurosurgery, Penn State Health Neurosurgery, Hershey, Pennsylvania, USA
| | - Kenneth Liu
- Neurosurgery, University of Southern California, Los Angeles, California, USA
| | | | - Kyle M Fargen
- Neurosurgery, Wake Forest University, Winston-Salem, North Carolina, USA
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47
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Bender MT, Young RW, Zarrin DA, Campos JK, Caplan JM, Huang J, Tamargo RJ, Lin LM, Colby GP, Coon AL. Twisting: Incidence and Risk Factors of an Intraprocedural Challenge Associated With Pipeline Flow Diversion of Cerebral Aneurysms. Neurosurgery 2020; 88:25-35. [PMID: 32658958 DOI: 10.1093/neuros/nyaa309] [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: 07/02/2019] [Accepted: 05/02/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Pipeline Embolization Device (PED; Medtronic) "twisting" manifests with the appearance of a "figure 8" in perpendicular planes on digital subtraction angiography. This phenomenon has received little attention in the literature, requires technical precision to remediate, and has potential to cause ischemic stroke if not properly remediated. OBJECTIVE To report incidence, risk factors, and sequelae of PED twisting and to discuss techniques to remediate a PED twist. METHODS Case images were reviewed for instances of twisting from a prospectively-maintained, Institutional Review Board-approved cohort of patients undergoing flow diversion for cerebral aneurysm. RESULTS From August 2011 to December 2017, 999 PED flow diverting stents were attempted in 782 cases for 653 patients. A total of 25 PED twists were observed while treating 20 patients (2.50%, 25/999). Multivariate analysis revealed predictors of twisting to be: Large and giant aneurysms (odds ratio (OR) = 9.66, P = .005; OR = 27.47, P < .001), increased PED length (OR = 1.14, P < .001), and advanced patient age (OR = 1.07, P = .002). Twisted PEDs were able to be remediated 75% of the time, and procedural success was achieved in 90% of cases. PED twisting was not found to be a significant cause of major or minor complications. However, at long-term follow-up, there was a trend towards poor occlusion outcomes for the cases that encountered twisting. CONCLUSION Twisting is a rare event during PED deployment that was more likely to occur while treating large aneurysms with long devices in older patients. While twisting did not lead to major complications in this study, remediation can be challenging and may be associated with inferior occlusion outcomes.
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Affiliation(s)
- Matthew T Bender
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York
| | - Robert W Young
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - David A Zarrin
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jessica K Campos
- Department of Neurosurgery, University of California Irvine, Orange, California
| | - Justin M Caplan
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Judy Huang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Rafael J Tamargo
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Li-Mei Lin
- Department of Neurosurgery, University of California Irvine, Orange, California
| | - Geoffrey P Colby
- Department of Neurosurgery, University of California Los Angeles, Los Angeles, California
| | - Alexander L Coon
- Department of Neurosurgery, Carondelet Neurological Institute, Tucson, Arizona
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48
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Bender MT, Colby GP, Jiang B, Lin LM, Campos JK, Xu R, Westbroek EM, Vo CD, Zarrin DA, Caplan JM, Huang J, Tamargo RJ, Coon AL. Flow Diversion of Posterior Circulation Cerebral Aneurysms: A Single-Institution Series of 59 Cases. Neurosurgery 2020; 84:206-216. [PMID: 29608702 DOI: 10.1093/neuros/nyy076] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 02/14/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Posterior circulation cerebral aneurysms are at higher risk of rupture and are more symptomatic than those in the anterior circulation. Existing treatments carry significant morbidity. Early reports of flow diversion for posterior circulation aneurysms have suggested high complication and low occlusion rates. OBJECTIVE To report safety and efficacy of flow diversion with the pipeline embolization device (ev3, Medtronic Inc, Dublin, Ireland) for aneurysms located throughout the posterior circulation. METHODS A prospective, institutional review board-approved database was analyzed for all patients with posterior circulation aneurysms treated by flow diversion at our institution. RESULTS Fifty-nine embolization procedures were performed on 55 patients. Average aneurysm size was 9.4 mm. Morphology was saccular (45%), fusiform (29%), or dissecting/pseudo-aneurysms (25%). Sixty-two percent of aneurysms arose along the vertebral artery. There were 7 mid-basilar (13%) and 7 basilar apex (13%) aneurysms. Procedural success was 98%; 1 Pipeline embolization device was placed in 85%; and coiling was performed in 17% of cases. There were 5 major complications (8%), all strokes. Patients with major stroke had modified Rankin Scale score at last follow-up of 1, 3, 4, 6, and 6 (2 mortalities). There were zero intracerebral or subarachnoid hemorrhages. No variable predicted complications on univariate or multivariate analysis. Follow-up digital subtraction angiography was performed for 43 patients (78%). Complete occlusion was 68% at 6 mo and 78% at 12 mo. Average follow-up was 11.8 mo. Fusiform or dissecting morphology and large or giant aneurysm size were predictors of aneurysm persistence at 6 mo on multivariate logistic regression. CONCLUSION This is a large single-institution series of Pipeline (Medtronic Inc) for posterior circulation aneurysms and demonstrates acceptable safety and effectiveness in these challenging cases.
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Affiliation(s)
- Matthew T Bender
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Geoffrey P Colby
- Department of Neurosurgery, University of California Los Angeles, Los Angeles, California
| | - Bowen Jiang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Li-Mei Lin
- Department of Neurosurgery, University of California Irvine, Orange, California
| | - Jessica K Campos
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Risheng Xu
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Erick M Westbroek
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Chau D Vo
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - David A Zarrin
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Justin M Caplan
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Judy Huang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Rafael J Tamargo
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alexander L Coon
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Bender MT, Colby GP, Lin LM, Jiang B, Westbroek EM, Xu R, Campos JK, Huang J, Tamargo RJ, Coon AL. Predictors of cerebral aneurysm persistence and occlusion after flow diversion: a single-institution series of 445 cases with angiographic follow-up. J Neurosurg 2019; 130:259-267. [PMID: 29600915 DOI: 10.3171/2017.11.jns171738] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [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: 07/16/2017] [Accepted: 11/10/2017] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Flow diversion requires neointimal stent overgrowth to deliver aneurysm occlusion. The existing literature on aneurysm occlusion is limited by heterogeneous follow-up, variable antiplatelet regimens, noninvasive imaging modalities, and nonstandard occlusion assessment. Using a large, single-center cohort with low attrition and standardized antiplatelet tapering, the authors evaluated outcomes after flow diversion of anterior circulation aneurysms to identify predictors of occlusion and aneurysm persistence. METHODS Data from a prospective, IRB-approved database was analyzed for all patients with anterior circulation aneurysms treated by flow diversion with the Pipeline embolization device (PED) at the authors' institution. Follow-up consisted of catheter cerebral angiography at 6 and 12 months postembolization. Clopidogrel was discontinued at 6 months and aspirin was reduced to 81 mg daily at 12 months. Occlusion was graded as complete, trace filling, entry remnant, or aneurysm filling. Multivariate logistic regression was performed to identify predictors of aneurysm persistence. RESULTS Follow-up catheter angiography studies were available for 445 (91%) of 491 PED procedures performed for anterior circulation aneurysms between August 2011 and August 2016. Three hundred eighty-seven patients accounted for these 445 lesions with follow-up angiography. The population was 84% female; mean age was 56 years and mean aneurysm size was 6.6 mm. Aneurysms arose from the internal carotid artery (83%), anterior cerebral artery (13%), and middle cerebral artery (4%). Morphology was saccular in 90% of the lesions, and 18% of the aneurysms has been previously treated. Overall, complete occlusion was achieved in 82% of cases at a mean follow-up of 14 months. Complete occlusion was achieved in 72%, 78%, and 87% at 6, 12, and 24 months, respectively. At 12 months, adjunctive coiling predicted occlusion (OR 0.260, p = 0.036), while male sex (OR 2.923, p = 0.032), aneurysm size (OR 3.584, p = 0.011), and incorporation of a branch vessel (OR 2.206, p = 0.035) predicted persistence. Notable variables that did not predict aneurysm occlusion were prior treatments, vessel of origin, fusiform morphology, and number of devices used. CONCLUSIONS This is the largest single-institution study showing high rates of anterior circulation aneurysm occlusion after Pipeline embolization. Predictors of persistence after flow diversion included increasing aneurysm size and incorporated branch vessel, whereas adjunctive coiling predicted occlusion.
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Affiliation(s)
- Matthew T Bender
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Geoffrey P Colby
- 2Department of Neurosurgery, University of California, Los Angeles; and
| | - Li-Mei Lin
- 3Department of Neurosurgery, University of California, Irvine, California
| | - Bowen Jiang
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Erick M Westbroek
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Risheng Xu
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jessica K Campos
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Judy Huang
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Rafael J Tamargo
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Alexander L Coon
- 1Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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50
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Bender MT, Colby GP, Coon AL. Commentary: Comparison of Pipeline Embolization Device and Flow Re-Direction Endoluminal Device Flow Diverters for Internal Carotid Artery Aneurysms: A Propensity-Score Matched Cohort Study. Neurosurgery 2019; 85:E256-E257. [PMID: 30544139 DOI: 10.1093/neuros/nyy613] [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] [Received: 10/18/2018] [Accepted: 11/23/2018] [Indexed: 11/14/2022] Open
Affiliation(s)
- Matthew T Bender
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Geoffrey P Colby
- Department of Neurosurgery, University of California Los Angeles, Los Angeles, California
| | - Alexander L Coon
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland
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