1
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Baden D, Zukunft S, Hernandez G, Wolgast N, Steinhauser S, Pohlmann A, Schliemann C, Mikesch JH, Steffen B, Sauer T, Hanoun M, Schafer-Eckart K, Krause SW, Hanel M, Einsele H, Jost E, Brummendorf TH, Scholl S, Hochhaus A, Neubauer A, Burchert A, Kaufmann M, Niemann D, Schaich M, Blau W, Kiani A, Gorner M, Kaiser U, Kullmer J, Weber T, Berdel WE, Ehninger G, Muller-Tidow C, Platzbecker U, Serve H, Bornhauser M, Rollig C, Baldus CD, Fransecky L. Time from diagnosis to treatment has no impact on survival in newly diagnosed acute myeloid leukemia treated with venetoclax-based regimens. Haematologica 2024. [PMID: 38654660 DOI: 10.3324/haematol.2024.285225] [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: 02/06/2024] [Indexed: 04/26/2024] Open
Abstract
In newly diagnosed acute myeloid leukemia, immediate initiation of treatment is standard of care. However, deferral of antileukemic therapy may be indicated to assess comorbidities or pre-therapeutic risk factors. We explored the impact of time from diagnosis to treatment on outcomes in newly diagnosed acute myeloid leukemia undergoing venetoclax-based therapy in two distinct cohorts. By querying the Study Alliance Leukemia database and the global health network TriNetX, we identified 138 and 717 patients respectively with an average age of 76 and 72 years who received venetoclax-based firstline therapy. When comparing patients who started treatment earlier or later than 10 days after initial diagnosis, no significant difference in median overall survival was observed - neither in the SAL cohort (7.7 vs. 9.6 months, p=.42) nor in the TriNetX cohort (7.5 vs. 7.2 months, p=.41). Similarly, severe infections, bleeding, and thromboembolic events were equally observed between early and later treatments, both in the overall patient groups and specific subgroups (age ≥75 years or leukocytes ≥20x109/L). This retrospective analysis indicates that delaying the start of venetoclax-based therapy in newly diagnosed acute myeloid leukemia might be a safe option for selected patients, provided that close clinical monitoring is performed.
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Affiliation(s)
- David Baden
- Department of Internal Medicine II, University Hospital Schleswig-Holstein, Kiel, Germany; University Cancer Center Schleswig-Holstein, University Hospital Schleswig-Holstein, Kiel.
| | - Sven Zukunft
- Medical Department I, University Hospital of TU Dresden, Dresden
| | | | - Nadine Wolgast
- Department of Internal Medicine II, University Hospital Schleswig-Holstein, Kiel, Germany; University Cancer Center Schleswig-Holstein, University Hospital Schleswig-Holstein, Kiel
| | - Sophie Steinhauser
- Department of Internal Medicine II, University Hospital Schleswig-Holstein, Kiel, Germany; University Cancer Center Schleswig-Holstein, University Hospital Schleswig-Holstein, Kiel
| | | | | | | | - Bjorn Steffen
- Medical Department II, J.-W.-Goethe University Hospital Frankfurt
| | - Tim Sauer
- Medical Department V, Heidelberg University Hospital
| | - Maher Hanoun
- Department of Hematology, Essen University Hospital
| | | | | | - Mathias Hanel
- Department for Internal Medicine III, Klinikum Chemnitz
| | | | - Edgar Jost
- Department of Oncology, Hematology, Hemostaseology and Stem Cell Transplantation, University Hospital RWTH Aachen, Aachen, Germany and Center for Integrated Oncology (CIO), Aachen, Bonn, Cologne, Dusseldorf (ABCD), Aachen
| | - Tim H Brummendorf
- Department of Oncology, Hematology, Hemostaseology and Stem Cell Transplantation, University Hospital RWTH Aachen, Aachen, Germany and Center for Integrated Oncology (CIO), Aachen, Bonn, Cologne, Dusseldorf (ABCD), Aachen
| | | | | | - Andreas Neubauer
- Department of Internal Medicine, Hematology, Oncology and Immunology, University Hospital Marburg
| | - Andreas Burchert
- Department of Internal Medicine, Hematology, Oncology and Immunology, University Hospital Marburg
| | - Martin Kaufmann
- Department of Hematology, Oncology and Palliative Medicine, Robert-Bosch-Hospital Stuttgart
| | - Dirk Niemann
- Internal Medicine, Hematology/Oncology, Palliative Medicine, Gemeinschaftsklinikum Mittelrhein, Koblenz
| | - Markus Schaich
- Department for Hematology, Oncology and Palliative Medicine, Rems-Murr-Klinikum, Winnenden
| | - Wolfgang Blau
- Department for Internal Medicine III, Helios Dr Schmidt Hospital Wiesbaden
| | - Alexander Kiani
- Department for Oncology and Hematology, Klinikum Bayreuth, and Comprehensive Cancer Center Erlangen-EMN
| | - Martin Gorner
- Department for Hematology, Oncology and Palliative Medicine, Klinikum Bielefeld, Bielefeld
| | - Ulrich Kaiser
- Medical Department II, St. Bernward Hospital, Hildesheim
| | | | - Thomas Weber
- Department for Internal Medicine IV, University Hospital Halle (Saale)
| | | | - Gerhard Ehninger
- Medical Department I, University Hospital of TU Dresden, Dresden
| | | | - Uwe Platzbecker
- Medical Department I, Hematology and Cell Therapy, University Hospital Leipzig
| | - Hubert Serve
- Medical Department II, J.-W.-Goethe University Hospital Frankfurt
| | | | - Christoph Rollig
- Medical Department I, University Hospital of TU Dresden, Dresden
| | - Claudia D Baldus
- Department of Internal Medicine II, University Hospital Schleswig-Holstein, Kiel, Germany; University Cancer Center Schleswig-Holstein, University Hospital Schleswig-Holstein, Kiel
| | - Lars Fransecky
- Department of Internal Medicine II, University Hospital Schleswig-Holstein, Kiel, Germany; University Cancer Center Schleswig-Holstein, University Hospital Schleswig-Holstein, Kiel
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2
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Enßle JC, Wolf S, Scheich S, Weber S, Kramer M, Ruhnke L, Schliemann C, Mikesch JH, Krause S, Sauer T, Hanoun M, Reinhardt HC, Kraus S, Kaufmann M, Hänel M, Fransecky L, Burchert A, Neubauer A, Crysandt M, Jost E, Niemann D, Schäfer-Eckart K, Held G, Kaiser U, Wass M, Schaich M, Müller-Tidow C, Platzbecker U, Baldus CD, Bornhäuser M, Röllig C, Serve H, Steffen B. Impact of BMI on patient outcome in acute myeloid leukaemia patients receiving intensive induction therapy: a real-world registry experience. Br J Cancer 2023; 129:1126-1133. [PMID: 37542108 PMCID: PMC10539505 DOI: 10.1038/s41416-023-02362-3] [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: 01/05/2023] [Revised: 06/06/2023] [Accepted: 07/05/2023] [Indexed: 08/06/2023] Open
Abstract
BACKGROUND Acute myeloid leukaemia (AML) is treated with intensive induction chemotherapy (IT) in medically fit patients. In general, obesity was identified as a risk factor for all-cause mortality, and there is an ongoing debate on its impact on outcome and optimal dosing strategy in obese AML patients. METHODS We conducted a registry study screening 7632 patients and assessed the impact of obesity in 1677 equally IT treated, newly diagnosed AML patients on the outcome (OS, EFS, CR1), comorbidities, toxicities and used dosing strategies. RESULTS Obese patients (BMI ≥ 30) displayed a significant inferior median OS (29.44 vs. 47.94 months, P = 0.015) and CR1 rate (78.7% vs. 84.3%, P = 0.015) without differences in median EFS (7.8 vs. 9.89 months, P = 0.3) compared to non-obese patients (BMI < 30). The effect was predominantly observed in older (≥60 years) patients. Obesity was identified as an independent risk factor for death, and obese patients demonstrated higher rates of cardiovascular or metabolic comorbidities. No differences for OS, EFS, CR1 or treatment-related toxicities were observed by stratification according to used dosing strategy or dose reduction. CONCLUSIONS In conclusion, this study identifies obesity as an independent risk factor for worse OS in older AML patients undergoing curative IT most likely due to obesity-related comorbidities and not to dosing strategy.
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Affiliation(s)
- Julius C Enßle
- Department of Medicine II, Hematology and Oncology, University Hospital Frankfurt, Goethe-University, Frankfurt am Main, Germany
| | - Sebastian Wolf
- Department of Medicine II, Hematology and Oncology, University Hospital Frankfurt, Goethe-University, Frankfurt am Main, Germany
| | - Sebastian Scheich
- Department of Medicine II, Hematology and Oncology, University Hospital Frankfurt, Goethe-University, Frankfurt am Main, Germany
| | - Sarah Weber
- Department of Medicine II, Hematology and Oncology, University Hospital Frankfurt, Goethe-University, Frankfurt am Main, Germany
| | - Michael Kramer
- Department of Internal Medicine I, University Hospital Dresden, Dresden, Germany
| | - Leo Ruhnke
- Department of Internal Medicine I, University Hospital Dresden, Dresden, Germany
| | | | | | - Stefan Krause
- Department of Hematology and Medical Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Tim Sauer
- Department of Medicine V, Hematology, Oncology and Rheumatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Maher Hanoun
- Department of Hematology and Stem Cell Transplantation, University Hospital Essen, Essen, Germany
| | - Hans Christian Reinhardt
- Department of Hematology and Stem Cell Transplantation, University Hospital Essen, Essen, Germany
| | - Sabrina Kraus
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Martin Kaufmann
- Department of Hematology, Oncology and Palliative Medicine, Robert-Bosch-Hospital, Stuttgart, Germany
| | - Mathias Hänel
- Department of Internal Medicine III, Chemnitz Hospital, Chemnitz, Germany
| | - Lars Fransecky
- Department of Internal Medicine II, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Andreas Burchert
- Department of Hematology, Oncology and Immunology, University Hospital Marburg, Marburg, Germany
| | - Andreas Neubauer
- Department of Hematology, Oncology and Immunology, University Hospital Marburg, Marburg, Germany
| | - Martina Crysandt
- Department of Internal Medicine IV, University Hospital RWTH Aachen, Aachen, Germany
| | - Edgar Jost
- Department of Internal Medicine IV, University Hospital RWTH Aachen, Aachen, Germany
| | - Dirk Niemann
- Department of Hematology/Oncology and Palliative Medicine, Ev. Stift St. Martin, Koblenz, Germany
| | - Kerstin Schäfer-Eckart
- Department of Internal Medicine 5, Hospital Nürnberg, Paracelsus Medizinische Privatuniversität, Nürnberg, Germany
| | - Gerhard Held
- Department of Internal Medicine I, Westpfalz Klinik, Kaiserslautern, Germany
| | - Ulrich Kaiser
- Department of Hematology and Oncology, St. Bernward Hospital, Hildesheim, Germany
| | - Maxi Wass
- Department of Internal Medicine IV, University Hospital Halle (Saale), Halle (Saale), Germany
| | - Markus Schaich
- Department of Hematology, Oncology and Palliative Medicine, Rems-Murr-Kliniken, Winnenden, Germany
| | - Carsten Müller-Tidow
- Department of Medicine V, Hematology, Oncology and Rheumatology, University Hospital Heidelberg, Heidelberg, Germany
| | - Uwe Platzbecker
- Department for Internal Medicine I, University Hospital Leipzig, Leipzig, Germany
| | - Claudia D Baldus
- Department of Internal Medicine II, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Martin Bornhäuser
- Department of Internal Medicine I, University Hospital Dresden, Dresden, Germany
| | - Christoph Röllig
- Department of Internal Medicine I, University Hospital Dresden, Dresden, Germany
| | - Hubert Serve
- Department of Medicine II, Hematology and Oncology, University Hospital Frankfurt, Goethe-University, Frankfurt am Main, Germany
| | - Björn Steffen
- Department of Medicine II, Hematology and Oncology, University Hospital Frankfurt, Goethe-University, Frankfurt am Main, Germany.
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3
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Kayser S, Martínez-Cuadrón D, Hanoun M, Stölzel F, Gil C, Reinhardt HC, Aguiar E, Schäfer-Eckart K, Burgues JMB, Steffen B, Bernal T, Krause SW, Riaza R, Schliemann C, Cervera J, Kaufmann M, Torres-Miñana L, Hänel M, Acuña-Cruz E, Jost E, Algarra JL, Crysandt M, Fransecky L, Cornago-Navascues J, Kraus S, Martinez-Lopez J, Einsele H, Niemann D, Neubauer A, Seggewiss-Bernhardt R, Scholl S, Klein SA, Schmid C, Schaich M, Schmidt-Hieber M, Zukunft S, Ho AD, Platzbecker U, Baldus CD, Müller-Tidow C, Thiede C, Bornhäuser M, Serve H, Levis MJ, Montesinos P, Röllig C, Schlenk RF. Characteristics and outcome of patients with acute myeloid leukemia and trisomy 4. Haematologica 2022; 108:34-41. [PMID: 35678031 PMCID: PMC9827151 DOI: 10.3324/haematol.2022.281137] [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: 03/28/2022] [Indexed: 02/04/2023] Open
Abstract
We retrospectively studied 125 patients with acute myeloid leukemia and trisomy 4 (median age at diagnosis, 58 years; range, 16-77 years) treated between 2000 and 2019 within a multicenter study. Trisomy 4 was the sole abnormality in 28 (22%) patients and additional abnormalities were present in 97 (78%) patients. Twenty-two (22%) and 15 (15%) of 101 tested patients harbored NPM1 and FLT3-ITD mutations. Two (3%) of 72 tested patients had double CEBPA mutations. Data on response to intensive anthracycline-based induction therapy were available for 119 patients. Complete remission was achieved in 67% (n=80) and the early death rate was 5% (n=6). Notably, patients with trisomy 4 as sole abnormality had a complete remission rate of 89%. Allogeneic hematopoietic cell transplantation was performed in 40 (34%) patients, of whom 19 were transplanted in first complete remission. The median follow-up of the intensively treated cohort was 5.76 years (95% confidence interval [95% CI]: 2.99-7.61 years). The 5-year overall survival and relapse-free survival rates were 30% (95% CI: 22-41%) and 27% (95% CI: 18-41%), respectively. An Andersen-Gill regression model on overall survival revealed that favorable-risk according to the European LeukemiaNet classification (hazard ratio [HR]=0.34; P=0.006) and trisomy 4 as sole abnormality (HR=0.41; P=0.01) were favorable factors, whereas age with a difference of 10 years (HR=1.15; P=0.11), female gender (HR=0.74; P=0.20) and allogeneic hematopoietic cell transplantation (HR=0.64; P=0.14) did not have an significant impact. In our cohort, patients with trisomy 4 as their sole abnormality had a high complete remission rate and favorable clinical outcome. Allogeneic hematopoietic cell transplantation did not seem to improve overall survival.
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Affiliation(s)
- Sabine Kayser
- Medical Clinic and Policlinic I, Hematology and Cellular Therapy, University Hospital Leipzig, Leipzig, Germany,NCT Trial Center, National Center of Tumor Diseases, German Cancer Research Center (DKFZ), Heidelberg, Germany,S. Kayser
| | - David Martínez-Cuadrón
- Hematology Department, Hospital Universitari i Politècnic, La Fe, València, Spain,CIBERONC, Instituto Carlos III, Madrid, Spain
| | - Maher Hanoun
- Department of Hematology and Stem Cell Transplantation, University Hospital Essen, Essen, Germany
| | - Friedrich Stölzel
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, Dresden, Germany
| | | | - H. Christian Reinhardt
- Department of Hematology and Stem Cell Transplantation, University Hospital Essen, Essen, Germany
| | - Eliana Aguiar
- Clinical Haematology Department, Centro Hospitalar São João, Oporto, Portugal
| | - Kerstin Schäfer-Eckart
- Department of Internal Medicine 5, Paracelsus Medical Private University Nürnberg, Nürnberg, Germany
| | | | - Björn Steffen
- Department of Internal Medicine II, University Hospital of Frankfurt Main, Frankfurt Main, Germany
| | | | - Stefan W. Krause
- Department of Internal Medicine 5 – Hematology/Oncology, University Hospital of Erlangen, Erlangen, Germany
| | - Rosalía Riaza
- Hematology Department, Hospital Universitario Severo Ochoa, Madrid, Spain
| | | | - Jose Cervera
- Hematology Department, Hospital Universitari i Politècnic, La Fe, València, Spain,CIBERONC, Instituto Carlos III, Madrid, Spain
| | | | - Laura Torres-Miñana
- Hematology Department, Hospital Universitari i Politècnic, La Fe, València, Spain,CIBERONC, Instituto Carlos III, Madrid, Spain
| | | | - Evelyn Acuña-Cruz
- Hematology Department, Hospital Universitari i Politècnic, La Fe, València, Spain,CIBERONC, Instituto Carlos III, Madrid, Spain
| | - Edgar Jost
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | | | - Martina Crysandt
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, University Hospital RWTH Aachen, Aachen, Germany
| | - Lars Fransecky
- Department of Internal Medicine II, University Hospital of Kiel, Kiel, Germany
| | | | | | | | | | - Dirk Niemann
- Gemeinschaftsklinikum Mittelrhein gGmbH, Koblenz, Germany
| | - Andreas Neubauer
- Philipps University Marburg, and University Hospital Giessen and Marburg, Marburg, Germany
| | | | - Sebastian Scholl
- Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
| | - Stefan A. Klein
- Department of Hematology and Oncology, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
| | - Christoph Schmid
- Department of Hematology and Oncology, Augsburg University Hospital, Augsburg, Germany
| | - Markus Schaich
- Department of Hematology, Oncology and Palliative Care, Rems-Murr-Hospital Winnenden, Winnenden, Germany
| | | | - Sven Zukunft
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, Dresden, Germany
| | - Anthony D. Ho
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Uwe Platzbecker
- Medical Clinic and Policlinic I, Hematology and Cellular Therapy, University Hospital Leipzig, Leipzig, Germany
| | - Claudia D. Baldus
- Department of Internal Medicine II, University Hospital of Kiel, Kiel, Germany
| | - Carsten Müller-Tidow
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Christian Thiede
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, Dresden, Germany
| | - Martin Bornhäuser
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, Dresden, Germany
| | - Hubert Serve
- Department of Internal Medicine II, University Hospital of Frankfurt Main, Frankfurt Main, Germany
| | - Mark J. Levis
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
| | - Pau Montesinos
- Hematology Department, Hospital Universitari i Politècnic, La Fe, València, Spain,CIBERONC, Instituto Carlos III, Madrid, Spain
| | - Christoph Röllig
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, Dresden, Germany
| | - Richard F. Schlenk
- NCT Trial Center, National Center of Tumor Diseases, German Cancer Research Center (DKFZ), Heidelberg, Germany,Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany,Department of Medical Oncology, National Center for Tumor Diseases (NCT), Heidelberg University Hospital, Heidelberg, Germany
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4
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Jaramillo S, Krisam J, Le Cornet L, Kratzmann M, Baumann L, Sauer T, Crysandt M, Rank A, Behringer D, Teichmann L, Görner M, Trappe RU, Röllig C, Krause S, Hanoun M, Hopfer O, Held G, Buske S, Fransecky L, Kayser S, Schliemann C, Schaefer-Eckart K, Al-Fareh Y, Schubert J, Geer T, Kaufmann M, Brecht A, Niemann D, Kieser M, Bornhäuser M, Platzbecker U, Serve H, Baldus CD, Müller-Tidow C, Schlenk RF. Rationale and design of the 2 by 2 factorial design GnG-trial: a randomized phase-III study to compare two schedules of gemtuzumab ozogamicin as adjunct to intensive induction therapy and to compare double-blinded intensive postremission therapy with or without glasdegib in older patients with newly diagnosed AML. Trials 2021; 22:765. [PMID: 34732236 PMCID: PMC8564967 DOI: 10.1186/s13063-021-05703-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 10/01/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Overall survival remains poor in older patients with acute myeloid leukemia (AML) with less than 10% being alive after 5 years. In recent studies, a significant improvement in event-free, relapse-free and overall survival was shown by adding gemtuzumab ozogamicin (GO), a humanized antibody-drug conjugate directed against CD33, to intensive induction therapy once or in a sequential dosing schedule. Glasdegib, the small-molecule inhibitor of smoothened (SMO), also showed improved overall survival in patients not eligible for intensive chemotherapy when combined with low-dose cytarabine compared to low-dose cytarabine alone. These findings warrant further investigations in the phase III GnG trial. METHODS/DESIGN This is a randomized phase III trial with measurable residual disease (MRD) after induction therapy and event-free survival (EFS) as primary endpoints. The two research questions are addressed in a 2 by 2 factorial design. Patients age 60 years and older are upfront randomized 1:1 in one of the two induction arms: GO administered to intensive induction therapy on days 1,4, and 7 versus GO administered once on day 1 (GO-147 versus GO-1), and double-blinded 1:1 in one of the subsequent treatment arms glasdegib vs. placebo as adjunct to consolidation therapy and as single-agent maintenance therapy for six months. Chemotherapy backbone for induction therapy consists of standard 7 + 3 schedule with cytarabine 200 mg/m2 continuously days 1 to 7, daunorubicin 60 mg/m2 days 1, 2, and 3 and high-dose cytarabine (1 g/m2, bi-daily, days 1, 2, and 3) for consolidation therapy. Addressing two primary endpoints, MRD-negativity after induction therapy and event-free survival (EFS), 252 evaluable patients are needed to reject each of the two null hypotheses at a two-sided significance level of 2.5% with a power of at least 85%. ETHICS AND DISSEMINATION Ethical approval and approvals from the local and federal competent authorities were granted. Trial results will be reported via peer-reviewed journals and presented at conferences and scientific meetings. TRIAL STATUS Protocol version: 1st version 20.10.2020, no amendments yet. Study initiation on February 16, 2021. First patient was recruited on April 1st. TRIAL REGISTRATION ClinicalTrials.gov NCT04093505 ; EudraCT 2019-003913-32. Registered on October 30, 2018.
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Affiliation(s)
- Sonia Jaramillo
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany.
| | - Johannes Krisam
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Lucian Le Cornet
- NCT-Trial Center, National Center of Tumor Diseases, Heidelberg University Hospital and German Cancer Research Center, Heidelberg, Germany
| | - Markus Kratzmann
- NCT-Trial Center, National Center of Tumor Diseases, Heidelberg University Hospital and German Cancer Research Center, Heidelberg, Germany
| | - Lukas Baumann
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Tim Sauer
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Martina Crysandt
- Department of Medicine IV, Aachen University Hospital, Aachen, Germany
| | - Andreas Rank
- Department of Medicine II, Augsburg University Hospital, Augsburg, Germany
| | - Dirk Behringer
- Department of Hematology, Oncology and Palliative Medicine, Augusta Hospital Bochum, Bochum, Germany
| | - Lino Teichmann
- Department of Medicine and Polyclinic III, Bonn University Hospital, Bonn, Germany
| | - Martin Görner
- Department of Hematology, Oncology and Palliative Medicine, Community Hospital Bielefeld, Bielefeld, Germany
| | - Ralf-Ulrich Trappe
- Department of Medicine II, Prot. Diaconal Hospital Bremen, Bremen, Germany
| | - Christoph Röllig
- Department of Internal Medicine I, TU Dresden University Hospital, Dresden, Germany
| | - Stefan Krause
- Department of Medicine V, Erlangen University Hospital, Erlangen, Germany
| | - Maher Hanoun
- Department of Hematology, Essen University Hospital, Essen, Germany
| | - Olaf Hopfer
- Department of Medicine I, Hospital Frankfurt (Oder), Frankfurt (Oder), Germany
| | - Gerhard Held
- Department of Internal Medicine I, Westpfalz Hospital Kaiserslautern, Kaiserslautern, Germany
| | - Sebastian Buske
- Department of Medicine II, Community Hospital Kiel, Kiel, Germany
| | - Lars Fransecky
- Department of Internal Medicine II, Schleswig-Holstein University Hospital Kiel, Kiel, Germany
| | - Sabine Kayser
- NCT-Trial Center, National Center of Tumor Diseases, Heidelberg University Hospital and German Cancer Research Center, Heidelberg, Germany.,Department of Medicine I - Hematology and Cell Therapy, Leipzig University Hospital, Leipzig, Germany
| | | | | | - Yousef Al-Fareh
- Department of Hematology and Oncology, St. Josef Brothers' Hospital Paderborn, Paderborn, Germany
| | - Jörg Schubert
- Department of Internal Medicine II, Elbland Hospital Riesa, Riesa, Germany
| | - Thomas Geer
- Department of Medicine II, Diaconal Hospital Schwäbisch-Hall, Schwäbisch Hall, Germany
| | - Martin Kaufmann
- Department of Hematology, Oncology and Palliative Medicine, Robert-Bosch Hospital Stuttgart, Stuttgart, Germany
| | - Arne Brecht
- Department of Internal Medicine II, Helios Dr. Horst Schmidt Hospital Wiesbaden, Wiesbaden, Germany
| | - Dirk Niemann
- Department of Internal Medicine, Hematology, Oncology and Palliative Medicine, Prot. Monastery Hospital St. Jakob Koblenz, Koblenz, Germany
| | - Meinhard Kieser
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Martin Bornhäuser
- Department of Internal Medicine I, TU Dresden University Hospital, Dresden, Germany
| | - Uwe Platzbecker
- Department of Medicine I - Hematology and Cell Therapy, Leipzig University Hospital, Leipzig, Germany
| | - Hubert Serve
- Department of Hematology/Oncology, Johann Wolfgang Goethe University, Frankfurt, Germany
| | - Claudia D Baldus
- Department of Internal Medicine II, Schleswig-Holstein University Hospital Kiel, Kiel, Germany
| | - Carsten Müller-Tidow
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany
| | - Richard F Schlenk
- Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg, Germany.,NCT-Trial Center, National Center of Tumor Diseases, Heidelberg University Hospital and German Cancer Research Center, Heidelberg, Germany
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5
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Kayser S, Schlenk RF, Lebon D, Carre M, Götze KS, Stölzel F, Berceanu A, Schäfer-Eckart K, Peterlin P, Hicheri Y, Rahme R, Raffoux E, Chermat F, Krause SW, Aulitzky WE, Rigaudeau S, Noppeney R, Berthon C, Görner M, Jost E, Carassou P, Keller U, Orvain C, Braun T, Saillard C, Arar A, Kunzmann V, Wemeau M, De Wit M, Niemann D, Bonmati C, Schwänen C, Abraham J, Aljijakli A, Haiat S, Krämer A, Reichle A, Gnadler M, Willekens C, Spiekermann K, Hiddemann W, Müller-Tidow C, Thiede C, Röllig C, Serve H, Bornhäuser M, Baldus CD, Lengfelder E, Fenaux P, Platzbecker U, Adès L. Characteristics and outcome of patients with low-/intermediate-risk acute promyelocytic leukemia treated with arsenic trioxide - an international collaborative study. Haematologica 2021; 106:3100-3106. [PMID: 34047178 PMCID: PMC8634174 DOI: 10.3324/haematol.2021.278722] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Indexed: 12/02/2022] Open
Abstract
The aim of this study was to characterize a large series of 154 patients with acute promyelocytic leukemia (median age, 53 years; range, 18-90 years) and evaluate real-life outcome after up-front treatment with arsenic trioxide and all-trans retinoic acid. All patients were included in the prospective NAPOLEON registry (NCT02192619) between 2013 and 2019. The acute promyelocytic leukemia was de novo in 91% (n=140) and therapy-related in 9% (n=14); 13% (n=20) of the patients were older than 70 years. At diagnosis bleeding/hemorrhage was present in 38% and thrombosis in 3%. Complete remission was achieved in 152 patients (99%), whereas two patients (1%) experienced induction death within 18 days after starting therapy. With a median follow-up of 1.99 years (95% confidence interval: 1.61-2.30 years) 1-year and 2-year overall survival rates were 97% (95% confidence interval: 94-100%) and 95% (95% confidence interval: 91-99%), respectively. Age above 70 years was associated with a significantly shorter overall survival (P<0.001) compared to that of younger patients. So far no relapses have been observed. Six patients (4%) died in complete remission at a median of 0.95 years after diagnosis (range, 0.18-2.38 years). Our data confirm the efficiency and durability of arsenic trioxide and all-trans retinoic acid therapy in the primary management of adults with low-/intermediate-risk acute promyelocytic leukemia in the real-life setting, irrespective of age.
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Affiliation(s)
- Sabine Kayser
- Medical Clinic and Policlinic I, Hematology and Cellular Therapy, University Hospital Leipzig, Leipzig, Germany; NCT Trial Center, National Center of Tumor Diseases, German Cancer Research Center (DKFZ), Heidelberg.
| | - Richard F Schlenk
- NCT Trial Center, National Center of Tumor Diseases, German Cancer Research Center (DKFZ), Heidelberg; Department of Internal Medicine V, Heidelberg University Hospital, Heidelberg
| | | | - Martin Carre
- 5HCE Grenoble, Service d'Oncologie et Hématologie Pédiatrique, Grenoble
| | | | - Friedrich Stölzel
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, TU Dresden
| | - Ana Berceanu
- Service d'Hématologie du Pr. Cahn Hopital Jean Minjoz, Besancon
| | | | | | - Yosr Hicheri
- Département d'Hématologie Clinique du Chu Saint Eloi Montpellier
| | - Ramy Rahme
- Hôpital Saint Louis, Université Paris Diderot, Paris
| | | | | | - Stefan W Krause
- Department of Internal Medicine 5 - Hematology/Oncology, University Hospital of Erlangen
| | | | - Sophie Rigaudeau
- Service d'Hémato-Oncologie du Pr. Castaigne Hopital Andre Mignot le Chesnay
| | | | - Celine Berthon
- Service des Maladies du Sang Chru, Hopital Claude Huriez, Lille
| | - Martin Görner
- Klinik für Hämatologie, Onkologie und Palliativmedizin, Klinikum Bielefeld Mitte
| | | | - Philippe Carassou
- Service de Médecine interne, Hématologie du Pr. Christian Chr Metz Thionville, Hopital de Marcy, Metz
| | - Ulrich Keller
- Department of Hematology, Oncology and Tumor Immunology, Charité-University Medical Center, Campus Benjamin Franklin, Berlin
| | - Corentin Orvain
- Angers University Hospital, Maladies du Sang, Angers; Fédération Hospitalo-Universitaire Grand-Ouest Acute Leukemia, FHU-GOAL, France; Université d'Angers, Inserm, CRCINA, Angers
| | - Thorsten Braun
- Hôpital Avicenne, Assistance Publique - Hôpitaux de Paris, Université Paris
| | | | - Ali Arar
- Service d' Oncologie Médicale Hopital de la Source, Orleans
| | | | | | | | - Dirk Niemann
- Gemeinschaftsklinikum Mittelrhein gGmbH, Koblenz
| | - Caroline Bonmati
- Division of Hematology, Hôpital de Brabois, Centre Hospitalier Universitaire de Nancy, Nancy
| | | | - Julie Abraham
- Service d' Hématologie, Thérapie Cellulaire du Pr. Bordessoule, Hopital Universitaire Dupuytren, Limoges
| | - Ahmad Aljijakli
- Service d'Hématologie du Dr. Sutton Centre Hospitalier v. Dupouy, Argenteuil
| | - Stephanie Haiat
- Service d'Hematologie Clinique, CH Sud Francilien, Corbeil Essonnes
| | - Alwin Krämer
- Department of Internal Medicine V, University Hospital of Heidelberg, Heidelberg; German Cancer Research Center (DKFZ) and Department of Internal Medicine V, University of Heidelberg, Heidelberg
| | - Albrecht Reichle
- Department of Medicine III - Hematology and Internal Oncology, University Hospital Regensburg, Regensburg
| | - Martina Gnadler
- St. Vincentius Kliniken, Abteilung für Hämatologie, Onkologie, Immunologie und Palliativmedizin, Karlsruhe
| | - Christophe Willekens
- Département d'Hématologie, Gustave Roussy, Université Paris-Saclay, Villejuif; INSERM Unit 1170, Gustave Roussy Cancer Campus, Paris-Saclay University, Villejuif
| | - Karsten Spiekermann
- Department of Medicine III, University Hospital, Ludwig-Maximilians University (LMU) Munich, Munich
| | - Wolfgang Hiddemann
- Department of Medicine III, University Hospital, Ludwig-Maximilians University (LMU) Munich, Munich
| | - Carsten Müller-Tidow
- Department of Internal Medicine V, University Hospital of Heidelberg, Heidelberg
| | - Christian Thiede
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, TU Dresden
| | - Christoph Röllig
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, TU Dresden
| | - Hubert Serve
- Department of Internal Medicine II, University Hospital of Frankfurt Main
| | - Martin Bornhäuser
- Department of Medicine I, University Hospital Carl-Gustav-Carus, Dresden, TU Dresden
| | | | - Eva Lengfelder
- Department of Hematology and Oncology, University Hospital Mannheim, Mannheim
| | - Pierre Fenaux
- Hôpital Saint Louis, Université Paris Diderot, Paris
| | - Uwe Platzbecker
- Medical Clinic and Policlinic I, Hematology and Cellular Therapy, University Hospital Leipzig, Leipzig
| | - Lionel Adès
- Hôpital Saint Louis, Université Paris Diderot, Paris
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Lohr B, Niemann D, Verheyen J. Bamlanivimab treatment leads to rapid selection of immune escape variant carrying E484K mutation in a B.1.1.7 infected and immunosuppressed patient. Clin Infect Dis 2021; 73:2144-2145. [PMID: 34009286 DOI: 10.1093/cid/ciab392] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Dirk Niemann
- Gemeinschaftsklinikum Mittelrhein - Ev. Stift St. Martin, 56068 Koblenz, Germany
| | - Jens Verheyen
- Institute of Immunology and Genetics, 67655 Kaiserslautern, Germany
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Yang P, Ahmed A, Schafer S, Niemann D, Aagaard-Kienitz B, Royalty K, Strother C. Low-Dose Volume-of-Interest C-Arm CT Imaging of Intracranial Stents and Flow Diverters. AJNR Am J Neuroradiol 2016; 37:648-54. [PMID: 26494692 DOI: 10.3174/ajnr.a4590] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 05/26/2015] [Accepted: 08/18/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Volume-of-interest C-arm CT is a novel technique for imaging of intracranial high-contrast objects. We performed this study to evaluate the potential diagnostic value and radiation dose reduction of this technique for imaging of intracranial stents and flow diverters. MATERIALS AND METHODS Twenty-seven patients were imaged with a VOI C-arm CT scan following treatment with a flow diverter or stent-assisted coiling. The radiation dose-area product was recorded for VOI scans. For comparison, the dose-area product from 30 previously acquired consecutive full-view DynaCTs was used. Thermoluminescence dosimetry by using 35 evenly distributed thermoluminescence dosimeters in an anthropomorphic head phantom was also performed by using both conventional full field and VOI acquisitions. Three observers were presented with VOI images for assessment of the potential diagnostic value. RESULTS The dose-area product measurements showed an exposure reduction of 85% compared with the full field acquisitions used for comparison. The thermoluminescence dosimetry evaluations also showed a considerable dose reduction of 79.8% throughout the volume. For most of the evaluated cases, the observers thought that diagnostically useful information was provided by the VOI images (α = .810). Visualization of device details, such as the extent of opening, positioning, wall apposition, and aneurysm coverage, was judged of good diagnostic quality for most cases (88.9%-92.6%). CONCLUSIONS In this study, VOI C-arm CT provided high-quality diagnostic images of intracranial stents and flow diverters at a dramatic reduction of radiation exposure. Image content was thought to add useful information. It is a promising method to assess device status during procedures and at follow-up.
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Affiliation(s)
- P Yang
- From the Department of Neurosurgery (P.Y.), Changhai Hospital, Second Military Medical University, Shanghai, China Departments of Radiology (P.Y., C.S.)
| | - A Ahmed
- Neurological Surgery (A.A., D.N., B.A.-K.), University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - S Schafer
- Siemens Medical Solutions USA (S.S., K.R.), Hoffman Estates, Illinois
| | - D Niemann
- Neurological Surgery (A.A., D.N., B.A.-K.), University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - B Aagaard-Kienitz
- Neurological Surgery (A.A., D.N., B.A.-K.), University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | - K Royalty
- Siemens Medical Solutions USA (S.S., K.R.), Hoffman Estates, Illinois
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Chang W, Wu Y, Johnson K, Loecher M, Wieben O, Edjlali M, Oppenheim C, Roca P, Hald J, Aagaard-Kienitz B, Niemann D, Mistretta C, Turski P. Fast contrast-enhanced 4D MRA and 4D flow MRI using constrained reconstruction (HYPRFlow): potential applications for brain arteriovenous malformations. AJNR Am J Neuroradiol 2015; 36:1049-55. [PMID: 25698624 DOI: 10.3174/ajnr.a4245] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 09/29/2014] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE HYPRFlow is a novel imaging strategy that provides fast, high-resolution contrast-enhanced time-resolved images and measurement of the velocity of the entire cerebrovascular system. Our hypothesis was that the images obtained with this strategy are of adequate diagnostic image quality to delineate the major components of AVMs. MATERIALS AND METHODS HYPRFlow and 3D TOF scans were obtained in 21 patients with AVMs with correlative DSA examinations in 14 patients. The examinations were scored for image quality and graded by using the Spetzler-Martin criteria. Mean arterial transit time and overlap integrals were calculated from the dynamic image data. Volume flow rates in normal arteries and AVM feeding arteries were measured from the phase contrast data. RESULTS HYPRFlow was equivalent to 3D-TOF in delineating normal arterial anatomy, arterial feeders, and nidus size and was concordant with DSA for AVM grading and venous drainage in 13 of the 14 examinations. Mean arterial transit time on the AVM side was 0.49 seconds, and on the normal contralateral side, 2.53 seconds with P < .001. Across all 21 subjects, the mean arterial volume flow rate in the M1 segment ipsilateral to the AVM was 4.07 ± 3.04 mL/s; on the contralateral M1 segment, it was 2.09 ± 0.64 mL/s. The mean volume flow rate in the largest feeding artery to the AVM was 3.86 ± 2.74 mL/s. CONCLUSIONS HYPRFlow provides an alternative approach to the MRA evaluation of AVMs, with the advantages of increased coverage, 0.75-second temporal resolution, 0.68-mm isotropic spatial resolution, and quantitative measurement of flow in 6 minutes.
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Affiliation(s)
- W Chang
- From the Department of Radiology (W.C.), University of California, Los Angeles, Los Angeles, California
| | - Y Wu
- Medical Physics (Y.W., K.J., M.L., O.W., C.M.), University of Wisconsin School of Medicine, Madison, Wisconsin
| | - K Johnson
- Medical Physics (Y.W., K.J., M.L., O.W., C.M.), University of Wisconsin School of Medicine, Madison, Wisconsin
| | - M Loecher
- Medical Physics (Y.W., K.J., M.L., O.W., C.M.), University of Wisconsin School of Medicine, Madison, Wisconsin
| | - O Wieben
- Medical Physics (Y.W., K.J., M.L., O.W., C.M.), University of Wisconsin School of Medicine, Madison, Wisconsin
| | - M Edjlali
- Department of Radiology (M.E., C.O., P.R.), Université Paris-Descartes, Paris, France
| | - C Oppenheim
- Department of Radiology (M.E., C.O., P.R.), Université Paris-Descartes, Paris, France
| | - P Roca
- Department of Radiology (M.E., C.O., P.R.), Université Paris-Descartes, Paris, France
| | - J Hald
- Department of Radiology (J.H.), Rikshospitalet, Oslo, Norway
| | | | | | - C Mistretta
- Medical Physics (Y.W., K.J., M.L., O.W., C.M.), University of Wisconsin School of Medicine, Madison, Wisconsin
| | - P Turski
- Departments of Radiology (B.A.-K., P.T.)
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Niemann D, Bertsche A, Meyrath D, Oelsner S, Ewen AL, Pickardt B, Henhapl T, Hoffmann G, Meyburg J, Bertsche T. Drug handling in a paediatric intensive care unit--can errors be prevented by a three-step intervention? Klin Padiatr 2014; 226:62-7. [PMID: 24687610 DOI: 10.1055/s-0033-1364030] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND Drug handling in paediatric intensive care units (PICU) is prone to medication errors. We aimed to identify type and prevalence of those errors and to assess preventative interventions. METHODS Prospective intervention study investigating a 3-step intervention for preventing errors in drug handling in a 10-bed PICU of a university hospital. Nurses' drug handling was monitored in daily routine to identify the number of patients affected by errors and overall prevalence and types of errors in drug handling. We implemented a comprehensive intervention consisting of an information handout, a training course, and a 76-page reference book tailored to reduce the prevalence. RESULTS The prevalence of errors in drug handling decreased from 83 % (555 errors/668 processes)to 63 % (554/883; p < 0.001) after the intervention. The number of affected patients remained unchanged (95 % vs. 89 %, p = 0.370).Peroral (PO) drugs (1.33 errors/process) were more error-prone than intravenous (IV) drugs(0.64), despite being used less frequently (27 % vs.73 % of all processes, p < 0.001). The interventions decreased the prevalence to 0.77 errors/process(p < 0.001) in PO and to 0.52 in IV drugs (p = 0.025). CONCLUSION Errors in drug handling were alarmingly frequent. PO drugs were frequently subject to errors, even though being used less frequently. The implementation of a comprehensive intervention succeeded in reducing the prevalence of errors. Yet further refinements are necessary to decrease also the number of affected patients.
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Affiliation(s)
- D Niemann
- Department of Clinical Pharmacy, University of Leipzig, Leipzig, Germany
| | - A Bertsche
- Hospital for Children and Adolescents, Centre for Pediatric Research, -University of Leipzig, Leipzig, Germany
| | - D Meyrath
- Department of Clinical Pharmacology and Pharmacoepidemiology, -University of Heidelberg, Heidelberg, Germany
| | - S Oelsner
- Department of Clinical Pharmacology and Pharmacoepidemiology, -University of Heidelberg, Heidelberg, Germany
| | - A L Ewen
- Department of Clinical Pharmacology and Pharmacoepidemiology, -University of Heidelberg, Heidelberg, Germany
| | - B Pickardt
- Department of Clinical Pharmacology and Pharmacoepidemiology, -University of Heidelberg, Heidelberg, Germany
| | - T Henhapl
- University Children's Hospital, University of Heidelberg, Heidelberg, -Germany
| | - G Hoffmann
- University Children's Hospital, University of Heidelberg, Heidelberg, -Germany
| | - J Meyburg
- University Children's Hospital, University of Heidelberg, Heidelberg, -Germany
| | - T Bertsche
- Department of Clinical Pharmacy, University of Leipzig, Leipzig, Germany
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Davis B, Royalty K, Kowarschik M, Rohkohl C, Oberstar E, Aagaard-Kienitz B, Niemann D, Ozkan O, Strother C, Mistretta C. 4D digital subtraction angiography: implementation and demonstration of feasibility. AJNR Am J Neuroradiol 2013; 34:1914-21. [PMID: 23620072 DOI: 10.3174/ajnr.a3529] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Conventional 3D-DSA volumes are reconstructed from a series of projections containing temporal information. It was our purpose to develop a technique which would generate fully time-resolved 3D-DSA vascular volumes having better spatial and temporal resolution than that which is available with CT or MR angiography. MATERIALS AND METHODS After a single contrast injection, projections from the mask and fill rotation are subtracted to create a series of vascular projections. With the use of these projections, a conventional conebeam CT reconstruction is generated (conventional 3D-DSA). This is used to constrain the reconstruction of individual 3D temporal volumes, which incorporate temporal information from the acquired projections (4D-DSA). RESULTS Typically, 30 temporal volumes per second are generated with the use of currently available flat detector systems, a factor of ∼200 increase over that achievable with the use of multiple gantry rotations. Dynamic displays of the reconstructed volumes are viewable from any angle. Good results have been obtained by using both intra-arterial and intravenous injections. CONCLUSIONS It is feasible to generate time-resolved 3D-DSA vascular volumes with the use of commercially available flat detector angiographic systems and clinically practical injection protocols. The spatial resolution and signal-to-noise ratio of the time frames are largely determined by that of the conventional 3D-DSA constraining image and not by that of the projections used to generate the 3D reconstruction. The spatial resolution and temporal resolution exceed that of CTA and MRA, and the small vessel contrast is increased relative to that of conventional 2D-DSA due to the use of maximum intensity projections.
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Affiliation(s)
- B Davis
- University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
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Tateshima S, Niemann D, Moskowitz S, Baxter B, Frei D. O-031 Preliminary Experience with the MVP™ Device, a New Microcatheter-Deliverable Vascular Plug for Rapid Endovascular Vessel Occlusion and Flow Control. J Neurointerv Surg 2013. [DOI: 10.1136/neurintsurg-2013-010870.31] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Tateshima S, Niemann D, Moskowitz S, Baxter B, Frei D. O-017 Preliminary Experience with a New Barrel Shaped Bifurcation Aneurysm Bridging Device. J Neurointerv Surg 2013. [DOI: 10.1136/neurintsurg-2013-010870.17] [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: 11/04/2022]
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13
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Rolfs A, Fazekas F, Grittner U, Dichgans M, Martus P, Holzhausen M, Böttcher T, Heuschmann PU, Tatlisumak T, Tanislav C, Jungehulsing GJ, Giese AK, Putaala J, Huber R, Bodechtel U, Lichy C, Enzinger C, Schmidt R, Hennerici MG, Kaps M, Kessler C, Lackner K, Paschke E, Meyer W, Mascher H, Riess O, Kolodny E, Norrving B, Rolfs A, Ginsberg M, Hennerici MG, Kessler C, Kolodny E, Martus P, Norrving B, Ringelstein EB, Rothwell PM, Venables G, Bornstein N, deDeyn P, Dichgans M, Fazekas F, Markus H, Rieß O, Biedermann C, Böttcher T, Brüderlein K, Burmeister J, Federow I, König F, Makowei G, Niemann D, Rolfs A, Rösner S, Zielke S, Grittner U, Martus P, Holzhausen M, Fazekas F, Enzinger C, Schmidt R, Ropele S, Windisch M, Sterner E, Bodamer O, Fellgiebel A, Hillen U, Jonas L, Kampmann C, Kropp P, Lackner K, Laue M, Mascher H, Meyer W, Paschke E, Weidemann F, Berrouschot J, Stoll A, Rokicha A, Sternitzky C, Thomä M, DeDeyn PP, Sheorajpanday R, De Brabander I, Yperzeele L, Brouns R, Oschmann P, Pott M, Schultes K, Schultze C, Hirsekorn J, Jungehulsing GJ, Villringer A, Schmidt W, Liman T, Nowe T, Ebinger M, Wille A, Loui H, Objartel A, übelacker A, Mette R, Jegzentis K, Nabavi DG, Crome O, Bahr D, Ebke M, Platte B, Kleinen C, Mermolja Gunther K, Heide W, Pape O, Hanssen JR, Stangenberg D, Klingelhofer J, Schmidt B, Schwarz S, Schwarze J, Frandlih L, Iwanow J, Steinbach I, Krieger D, Boysen G, Leth Jeppesen L, Petersen A, Reichmann H, Becker U, Dzialkowski I, Hentschel H, Lautenschlager C, Hanso H, Gahn G, Ziemssen T, Fleischer K, Sehr B, McCabe DJH, Tobin O, Kinsella J, Murphy RP, Jander S, Hartung HP, Siebler M, Bottcher C, Kohne A, Platzen J, Brosig TC, Rothhammer V, Henseler C, Neumann-Haefelin T, Singer OC, Ermis U, dos Santos IMRM, Schuhmann C, van de Loo S, Kaps M, Allendorfer J, Tanislav C, Brandtner M, Muir K, Dani K, MacDougall N, Smith W, Rowe A, Welch A, Fazekas F, Schrotter G, Krenn U, Horner S, Pendl B, Pluta-Fuerst A, Trummer U, Kessler C, Chatzopoulos M, v Sarnowski B, Schminke U, Link T, Khaw A, Nieber E, Zierz S, Muller T, Wegener N, Wartenberg K, Gaul C, Richter D, Rosenkranz M, Krützelmann AC, Hoppe J, Choe CU, Narr S, Magnus TU, Thomalla G, Leypoldt F, Otto D, Lichy C, Hacke W, Barrows RJ, Tatlisumak T, Putaala J, Curtze S, Metso M, Willeit J, Furtner M, Spiegel M, Knoflach MH, Prantl B, Witte OW, Brämer D, Günther A, Prell T, Herzau C, Aurich K, Deuschl G, Wodarg F, Zimmermann P, Eschenfelder CC, Levsen M, Weber JR, Marecek SM, Schneider D, Michalski D, Kloppig W, Küppers-Tiedt L, Schneider M, Schulz A, Matzen P, Weise C, Hobohm C, Meier H, Langos R, Urban D, Gerhardt I, Thijs V, Lemmens R, Marcelis E, Hulsbosch C, Aichner F, Haring HP, Bach E, Machado Candido J, e Silva AA, Lourenco M, de Sousa AIM, Derex L, Cho TH, Díez-Tejedor E, Fuentes B, Martínez-Sanchez P, Pérez-Guevara MI, Hamer H, Metz A, Hallenberger K, Müller P, Baron P, Bersano A, Gattinoni M, Vella N, Mallia M, Jauss M, Adam L, Heidler F, Gube C, Kiszka M, Dichgans M, Karpinska A, Mewald Y, Straub V, Dörr A, Zollver A, Ringelstein EB, Schilling M, Borchert A, Preuth N, Duning T, Kuhlenbäumer G, Schulte D, Rothwell PM, Marquardt L, Schlachetzki F, Boy S, Mädl J, Ertl GM, Fehm NPR, Stadler C, Benecke R, Dudesek A, Kolbaske S, Lardurner G, Sulzer C, Zerbs A, Lilek S, Walleczek AM, Sinadinowska D, Janelidze M, Beridze M, Lobjanidze N, Dzagnidze A, Melms A, Horber K, Fink I, Liske B, Ludolph AC, Huber R, Knauer K, Hendrich C, Raubold S, Czlonkowska A, Baranowska A, Blazejewska-Hyzorek B, Lang W, Kristoferitsch W, Ferrari J, Ulrich E, Flamm-Horak A, Lischka-Lindner A, Schreiber W, Demarin V, Tranjec Z, Bosner-Puretic M, Jurašić MJ, Basic Kes V, Budisic M, Kopacevic L. Acute Cerebrovascular Disease in the Young. Stroke 2013; 44:340-9. [PMID: 23306324 DOI: 10.1161/strokeaha.112.663708] [Citation(s) in RCA: 150] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose—
Strokes have especially devastating implications if they occur early in life; however, only limited information exists on the characteristics of acute cerebrovascular disease in young adults. Although risk factors and manifestation of atherosclerosis are commonly associated with stroke in the elderly, recent data suggests different causes for stroke in the young. We initiated the prospective, multinational European study Stroke in Young Fabry Patients (sifap) to characterize a cohort of young stroke patients.
Methods—
Overall, 5023 patients aged 18 to 55 years with the diagnosis of ischemic stroke (3396), hemorrhagic stroke (271), transient ischemic attack (1071) were enrolled in 15 European countries and 47 centers between April 2007 and January 2010 undergoing a detailed, standardized, clinical, laboratory, and radiological protocol.
Results—
Median age in the overall cohort was 46 years. Definite Fabry disease was diagnosed in 0.5% (95% confidence interval, 0.4%–0.8%; n=27) of all patients; and probable Fabry disease in additional 18 patients. Males dominated the study population (2962/59%) whereas females outnumbered men (65.3%) among the youngest patients (18–24 years). About 80.5% of the patients had a first stroke. Silent infarcts on magnetic resonance imaging were seen in 20% of patients with a first-ever stroke, and in 11.4% of patients with transient ischemic attack and no history of a previous cerebrovascular event. The most common causes of ischemic stroke were large artery atherosclerosis (18.6%) and dissection (9.9%).
Conclusions—
Definite Fabry disease occurs in 0.5% and probable Fabry disease in further 0.4% of young stroke patients. Silent infarcts, white matter intensities, and classical risk factors were highly prevalent, emphasizing the need for new early preventive strategies.
Clinical Trial Registration Information—
URL:
http://www.clinicaltrials.gov
.Unique identifier: NCT00414583
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Affiliation(s)
- Arndt Rolfs
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Franz Fazekas
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Ulrike Grittner
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Martin Dichgans
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Peter Martus
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Martin Holzhausen
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Tobias Böttcher
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Peter U. Heuschmann
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Turgut Tatlisumak
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Christian Tanislav
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Gerhard J. Jungehulsing
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Anne-Katrin Giese
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Jukaa Putaala
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Roman Huber
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Ulf Bodechtel
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Christoph Lichy
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Christian Enzinger
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Reinhold Schmidt
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Michael G. Hennerici
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Manfred Kaps
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Christof Kessler
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Karl Lackner
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Eduard Paschke
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Wolfgang Meyer
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Hermann Mascher
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Olaf Riess
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Edwin Kolodny
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - Bo Norrving
- From the Albrecht-Kossel-Institute for Neuroregeneration, University of Rostock, Rostock, Germany (A.R., T.B., A.K.G.); Department of Neurology, University of Graz, Graz, Austria (F.F., C.E., R.S.); Institute for Biostatistics and Clinical Epidemiology, Charite-University Medicine, Berlin, Germany (U.G., P.M., M.H.); Institute for Stroke and Dementia Research and Department of Neurology, Ludwig-Maximillians University, Munich, Germany (M.D.); Center for Stroke Research Berlin,
| | - A Rolfs
- University of Rostock, Rostock, Germany
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- University of Rostock, Rostock, Germany
| | - F König
- University of Rostock, Rostock, Germany
| | - G Makowei
- University of Rostock, Rostock, Germany
| | - D Niemann
- University of Rostock, Rostock, Germany
| | - A Rolfs
- University of Rostock, Rostock, Germany
| | - S Rösner
- University of Rostock, Rostock, Germany
| | - S Zielke
- University of Rostock, Rostock, Germany
| | - U Grittner
- Department of Biostatistics and Clinical Epidemiology, Charité - Universitätsmedizin Berlin, Germany
| | - P Martus
- Department of Biostatistics and Clinical Epidemiology, Charité - Universitätsmedizin Berlin, Germany
| | - M Holzhausen
- Department of Biostatistics and Clinical Epidemiology, Charité - Universitätsmedizin Berlin, Germany
| | - F Fazekas
- Dept of Neurology, Medical University of Graz, Graz, Austria
| | - C Enzinger
- Dept of Neurology, Medical University of Graz, Graz, Austria
| | - R Schmidt
- Dept of Neurology, Medical University of Graz, Graz, Austria
| | - S Ropele
- Dept of Neurology, Medical University of Graz, Graz, Austria
| | | | | | | | | | - U Hillen
- (Essen, Germany) immunohistochemistry
| | - L Jonas
- (Rostock, Germany) electron-microscopy
| | | | - P Kropp
- (Rostock, Germany) headache and pain
| | | | - M Laue
- (Rostock, Germany) electron-microscopy
| | | | - W Meyer
- (London) epidemiology and neuropsychiatry
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- Berlin – Charite/Germany, University
| | - T Liman
- Berlin – Charite/Germany, University
| | - T Nowe
- Berlin – Charite/Germany, University
| | - M Ebinger
- Berlin – Charite/Germany, University
| | - A Wille
- Berlin – Charite/Germany, University
| | - H Loui
- Berlin – Charite/Germany, University
| | | | | | - R Mette
- Berlin – Charite/Germany, University
| | | | | | | | - D Bahr
- Berlin – Neukolln/Germany
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- Dresden/Germany, University
| | | | | | - B Sehr
- Dresden/Germany, University
| | | | | | | | | | | | | | | | | | - A Kohne
- Dusseldorf/Germany, University
| | | | | | | | | | | | - OC Singer
- Frankfurt am Main/Germany, University
| | - U Ermis
- Frankfurt am Main/Germany, University
| | | | | | | | - M Kaps
- Giessen/Germany, University
| | | | | | | | - K Muir
- Glasgow/United Kingdom, University
| | - K Dani
- Glasgow/United Kingdom, University
| | | | - W Smith
- Glasgow/United Kingdom, University
| | - A Rowe
- Glasgow/United Kingdom, University
| | - A Welch
- Glasgow/United Kingdom, University
| | | | | | - U Krenn
- Graz/Austria, Medical University
| | - S Horner
- Graz/Austria, Medical University
| | - B Pendl
- Graz/Austria, Medical University
| | | | | | | | | | | | | | - T Link
- Greifswald/Germany, University
| | - A Khaw
- Greifswald/Germany, University
| | | | | | | | | | | | - C Gaul
- Halle/Germany, University
| | | | | | | | | | | | - S Narr
- Hamburg/Germany, University
| | | | | | | | - D Otto
- Hamburg/Germany, University
| | - C Lichy
- Heidelberg/Germany, University
| | - W Hacke
- Heidelberg/Germany, University
| | | | | | | | | | - M Metso
- Helsinki/Finland, University
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - A Metz
- Marburg/Germany, University
| | | | | | | | | | | | | | | | - M Jauss
- Muhlhausen/Thuringen/Germany
| | - L Adam
- Muhlhausen/Thuringen/Germany
| | | | - C Gube
- Muhlhausen/Thuringen/Germany
| | | | | | | | | | | | - A Dörr
- Munich/Germany, University
| | | | | | | | | | | | | | | | | | | | | | | | - S Boy
- Regensburg/Germany, University
| | - J Mädl
- Regensburg/Germany, University
| | - GM Ertl
- Regensburg/Germany, University
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - A Melms
- Tubingen/Germany, University
| | | | - I Fink
- Tubingen/Germany, University
| | - B Liske
- Tubingen/Germany, University
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14
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Schorb E, Kasenda B, Atta J, Kaun S, Morgner A, Hess G, Elter T, von Bubnoff N, Dreyling M, Ringhoffer M, Krause SW, Derigs G, Klimm B, Niemann D, Fritsch K, Finke J, Illerhaus G. Prognosis of patients with primary central nervous system lymphoma after high-dose chemotherapy followed by autologous stem cell transplantation. Haematologica 2013; 98:765-70. [PMID: 23300179 DOI: 10.3324/haematol.2012.076075] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
High-dose chemotherapy followed by autologous stem cell transplantation has been shown to be feasible and highly effective in newly diagnosed primary central nervous system lymphoma. In this retrospective multicenter study, we investigated prognosis and baseline risk factors in patients with primary central nervous system lymphoma who underwent this treatment approach. We retrospectively analyzed 105 immunocompetent patients with primary central nervous system lymphoma who underwent high-dose chemotherapy followed by autologous stem cell transplantation with or without whole brain radiotherapy as first-line consolidation treated at 12 German centers between 1997 and 2011. We estimated survival rates and investigated the impact of age, performance status, serum lactate dehydrogenase level, and deep brain involvement on overall and progression-free survival. Patients were additionally categorized into three prognostic groups according to the Memorial Sloan Kettering Cancer Center prognostic model. After a median follow up of 47 months, median progression-free survival and overall survival was reached after 85 and 121 months; 2- and 5-year survival rates were 82% and 79%, respectively. The Memorial Sloan Kettering Cancer Center prognostic model did not predict survival. Only age revealed some evidence of prognostic relevance. Overall response rate was 95%; of those patients with progressive disease before high-dose chemotherapy, 7 of 20 achieved ongoing complete remission after therapy without whole brain radiation therapy. Transplantation-associated mortality was 2.8%. High-dose chemotherapy followed by autologous stem cell transplantation is a highly effective and safe treatment modality for selected primary central nervous system lymphoma patients. Superiority compared to standard chemotherapy still warrants further investigation.
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Affiliation(s)
- Elisabeth Schorb
- Department of Hematology/Oncology, Freiburg University Medical Center, Freiburg, Germany
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15
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Yasuda R, Arat A, Strother CM, Aagaard-Kienitz B, Niemann D, Mohamed A, Royalty K, Pulfer K, Taki W, Mawad ME. Aneurysm ostium angle: a predictor of the need for stent as assistance for endovascular aneurysm coiling in internal carotid artery sidewall aneurysms. AJNR Am J Neuroradiol 2011; 32:1216-20. [PMID: 21700791 DOI: 10.3174/ajnr.a2515] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE There is no satisfactory parameter that can predict the need for assistant devices for endovascular aneurysm coiling. Our aim was to evaluate the utility of MOA as a predictor of the need for stent-assisted coiling in ICA sidewall aneurysms. MATERIALS AND METHODS From a retrospective review of an internal data base, 55 consecutive ICA sidewall aneurysms were identified. Thirty-two of the aneurysms were treated by using endovascular techniques. Because 23 of the 55 aneurysms were either untreated or clipped, 3 experienced interventionalists reviewed the 3D images of these aneurysms and then made a decision as to whether stent-assisted coiling would have been required. Thirty-one of the 55 aneurysms would have required stent-assisted coiling, while 24 would not. Neck width, DNR, AR, and MOA were obtained from each aneurysm by using prototype software. These parameters were then correlated with the requirement of stent-assisted coiling. RESULTS MOA and neck width of aneurysms requiring stent-assisted coiling were significantly larger than those not requiring stent-assisted coiling (P < .001 and <0.001, respectively). Although the DNR and AR of aneurysms requiring stent-assisted coiling were smaller than those not requiring it, the difference was not significant (P = .22 and 0.12, respectively). ROC analysis revealed that MOA was the parameter that best correlated with the need for stent-assisted coiling. Inclusion of MOA with the rest of the parameters significantly increased the predictive performance regarding the need for stent-assisted coiling (P = .005). CONCLUSIONS In this small study, MOA was a useful parameter to predict the need for stent-assisted coiling in ICA sidewall aneurysms. Further prospective study of this parameter for aneurysms at multiple locations is required to determine its ultimate value.
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Affiliation(s)
- R Yasuda
- University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
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16
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Powers C, Aagaard-Kienitz B, Pulfer K, Royalty K, Arat A, Niemann D, Strother C. P-001 Quantification of parametric color coded digital subtraction angiography. J Neurointerv Surg 2010. [DOI: 10.1136/jnis.2010.003236.1] [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: 11/03/2022]
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17
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Turk A, Pulfer K, Turski P, Niemann D, Aagaard-Kienitz B, Rowley H. E-014 Effect of carotid artery stenting on cognitive function in patients with carotid artery stenosis: one year outcomes. J Neurointerv Surg 2010. [DOI: 10.1136/jnis.2010.003251.14] [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: 11/04/2022]
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18
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Bley T, Strother CM, Pulfer K, Royalty K, Zellerhoff M, Deuerling-Zheng Y, Bender F, Consigny D, Yasuda R, Niemann D. C-arm CT measurement of cerebral blood volume in ischemic stroke: an experimental study in canines. AJNR Am J Neuroradiol 2010; 31:536-40. [PMID: 20053809 DOI: 10.3174/ajnr.a1851] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE CBV is a key parameter in distinguishing penumbra from ischemic core. The purpose of this study was to compare CBV measurements acquired with standard PCT with ones obtained with C-arm CT in a canine stroke model. MATERIALS AND METHODS Under an institutionally approved protocol, unilateral MCA strokes were created in 10 canines. Four hours later, DWI was used to confirm the presence of an infarct. CBV maps acquired with PCT were compared with ones acquired by using C-arm CT. Three experienced observers, blinded to the technique used for acquisition, evaluated the CBV maps. RESULTS An ischemic stroke was achieved in 9 of the 10 animals. Areas of reduced CBV were detected in 70%-75% of the PCT studies and in 83%-87% of the C-arm CT examinations, with false-positives in 1.7% and 3.3%, respectively. False-negatives were found in 25% of the PCT and 12.2% of the C-arm CT studies. In all studies, there was a significant difference between the absolute CBV values in normal and abnormal tissue (P < .005) and no significant difference between PCT and C-arm CT CBV values in either the normal or the abnormal parenchyma (P > .05). CONCLUSIONS CBV measurements made with C-arm CT compare well with ones made with PCT. While further work is required both to fully validate the technique and to define its ultimate clinical value, it appears that it offers a feasible method for assessing CBV in the angiography suite.
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Affiliation(s)
- T Bley
- University of Wisconsin Hospitals and Clinics, Madison, Wisconsin, USA
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Mendling W, Niemann D, Tintelnot K. Die vaginale Kolonisation durch Candidaarten unter besonderer Berücksichtigung von Candida dubliniensis. Geburtshilfe Frauenheilkd 2007. [DOI: 10.1055/s-2007-965681] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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20
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Turk AS, Aagaard-Kienitz B, Niemann D, Consigny D, Rappe A, Grinde J, Strother CM. Natural history of the canine vein pouch aneurysm model. AJNR Am J Neuroradiol 2007; 28:531-2. [PMID: 17353330 PMCID: PMC7977830] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
BACKGROUND AND PURPOSE The canine vein pouch aneurysm model is widely used for testing and development of devices directed at the endovascular treatment of aneurysms. Our purpose was to determine the incidence of spontaneous thrombosis and rupture of these aneurysms. MATERIALS AND METHODS A retrospective review of laboratory records of canine vein pouch aneurysms made during a 6-year period was performed. The aneurysm and parent artery dimensions as well as incidences of spontaneous thrombosis and rupture were noted. RESULTS During the interval studied, 326 vein patch aneurysms were made in 310 canines. Of these, 102 were sidewall (lateral) and 224 were bifurcation aneurysms. Spontaneous occlusion occurred in 9 of the sidewall aneurysms and in only 1 of the bifurcation aneurysms. None of the aneurysms ruptured. CONCLUSION Spontaneous occlusion of the sidewall canine vein patch aneurysm occurred less than 10% of the time; in the bifurcation aneurysms, it almost never occurred. These characteristics enhance the value of this model for use in testing of devices intended for the endovascular treatment of aneurysms.
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Affiliation(s)
- A S Turk
- Departments of Radiology, University of Wisconsin Hospital and Clinics, Madison, WI 53792, USA.
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21
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Turk AS, Johnson KM, Lum D, Niemann D, Aagaard-Kienitz B, Consigny D, Grinde J, Turski P, Haughton V, Mistretta C. Physiologic and anatomic assessment of a canine carotid artery stenosis model utilizing phase contrast with vastly undersampled isotropic projection imaging. AJNR Am J Neuroradiol 2007; 28:111-5. [PMID: 17213435 PMCID: PMC8134124] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
BACKGROUND AND PURPOSE Noninvasive assessment of the hemodynamic significance of carotid stenosis is often performed with MR angiography and supplemented with carotid Doppler sonography. Phase contrast with vastly undersampled isotropic projection reconstruction (PC-VIPR), a novel MR imaging technique, accelerates phase-contrast MR flow imaging and provides both images of the vessels and measurements of blood-flow velocities. For this study, we determined the accuracy of PC-VIPR blood-flow velocity measurements to determine pressure gradients across an experimental carotid stenosis. MATERIALS AND METHODS A focal stenosis was surgically created in each common carotid artery of 6 canines. Digital subtraction angiography (DSA) was performed, and the degree of stenosis was determined using the North American Symptomatic Carotid Endarterectomy Trial methodology. A microcatheter was positioned in the carotid artery proximal and distal to the stenosis, and pressures were measured in the vessel through the catheter. PC-VIPR was then performed on a 1.5T MR imaging scanner with parameters producing 0.8-mm isotropic voxel resolution. From the velocity measurements, pressure gradients were calculated from the Navier-Stokes relationship to compare with the pressures measured by a catheter. RESULTS Carotid stenoses in the 50%-85% range were produced in the 12 arteries. Pressure gradients across the stenoses ranged from 6 to 26 mm Hg. The pressure gradient calculated from the PC-VIPR data correlated (r = 0.91, P < .0001) with the actual pressure measurements. CONCLUSION With PC-VIPR, a novel MR imaging technique, the hemodynamic effect of a stenosis on flow and pressure can be evaluated.
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Affiliation(s)
- A S Turk
- Department of Radiology, University of Wisconsin Hospital and Clinics, Madison, WI, USA.
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22
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Warakaulle DR, Aviv RI, Niemann D, Molyneux AJ, Byrne JV, Teddy P. Embolisation of spinal dural arteriovenous fistulae with Onyx. Neuroradiology 2003; 45:110-2. [PMID: 12592495 DOI: 10.1007/s00234-002-0936-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [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: 10/02/2002] [Accepted: 11/20/2002] [Indexed: 11/28/2022]
Abstract
Surgery is currently the standard treatment for spinal dural arteriovenous fistulae (DAVF). Endovascular embolisation of these lesions using N-butyl cyanoacrylate (NBCA) has a high success rate. Onyx is a new liquid embolic agent whose viscosity makes it suitable for treatment of spinal DAVF where penetration into the proximal radicular vein is required. It is delivered with greater control than NBCA without the necessity for rapid withdrawal of the catheter and may therefore overcome some of the drawbacks of NBCA. We report two patients who underwent Onyx embolisation of spinal DAVF; to our knowledge this is the first such report.
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Affiliation(s)
- D R Warakaulle
- Department of Radiology, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
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23
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Cotter RL, Zheng J, Che M, Niemann D, Liu Y, He J, Thomas E, Gendelman HE. Regulation of human immunodeficiency virus type 1 infection, beta-chemokine production, and CCR5 expression in CD40L-stimulated macrophages: immune control of viral entry. J Virol 2001; 75:4308-20. [PMID: 11287580 PMCID: PMC114176 DOI: 10.1128/jvi.75.9.4308-4320.2001] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2000] [Accepted: 01/19/2001] [Indexed: 01/31/2023] Open
Abstract
Mononuclear phagocytes (MP) and T lymphocytes play a pivotal role in the host immune response to human immunodeficiency virus type 1 (HIV-1) infection. Regulation of such immune responses can be mediated, in part, through the interaction of the T-lymphocyte-expressed molecule CD40 ligand (CD40L) with its receptor on MP, CD40. Upregulation of CD40L on CD4+ peripheral blood mononuclear cells during advanced HIV-1 disease has previously been reported. Based on this observation, we studied the influence of CD40L-CD40 interactions on MP effector function and viral regulation in vitro. We monitored productive viral infection, cytokine and beta-chemokine production, and beta-chemokine receptor expression in monocyte-derived macrophages (MDM) after treatment with soluble CD40L. Beginning 1 day after infection and continuing at 3-day intervals, treatment with CD40L inhibited productive HIV-1 infection in MDM in a dose-dependent manner. A concomitant and marked upregulation of beta-chemokines (macrophage inhibitory proteins 1alpha and 1beta and RANTES [regulated upon activation normal T-cell expressed and secreted]) and the proinflammatory cytokine tumor necrosis factor alpha (TNF-alpha) was observed in HIV-1-infected and CD40L-treated MDM relative to either infected or activated MDM alone. The addition of antibodies to RANTES or TNF-alpha led to a partial reversal of the CD40L-mediated inhibition of HIV-1 infection. Surface expression of CD4 and the beta-chemokine receptor CCR5 was reduced on MDM in response to treatment with CD40L. In addition, treatment of CCR5- and CD4-transfected 293T cells with secretory products from CD40L-stimulated MDM prior to infection with a CCR5-tropic HIV-1 reporter virus led to inhibition of viral entry. In conclusion, we demonstrate that CD40L-mediated inhibition of viral entry coincides with a broad range of MDM immune effector responses and the down-modulation of CCR5 and CD4 expression.
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Affiliation(s)
- R L Cotter
- Center for Neurovirology and Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, Nebraska 68198-5215, USA
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24
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Hayderer G, Cernusca S, Schmid M, Varga P, Winter H, Aumayr F, Niemann D, Hoffmann V, Stolterfoht N, Lemell C, Wirtz L, Burgdörfer J. Kinetically assisted potential sputtering of insulators by highly charged ions. Phys Rev Lett 2001; 86:3530-3533. [PMID: 11328015 DOI: 10.1103/physrevlett.86.3530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2000] [Indexed: 05/23/2023]
Abstract
A new form of potential sputtering has been found for impact of slow ( < or = 1500 eV) multiply charged Xe ions (charge states up to q = 25) on MgO(x). In contrast to alkali-halide or SiO2 surfaces this mechanism requires the simultaneous presence of electronic excitation of the target material and of a kinetically formed collision cascade within the target in order to initiate the sputtering process. This kinetically assisted potential sputtering mechanism has been identified to be present for other insulating surfaces as well.
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Affiliation(s)
- G Hayderer
- Institut für Allgemeine Physik, TU Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria
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Dunkelberg S, van den Bussche H, Verbeck A, Niemann D. [Comparison of two different educational concepts in general practice]. Z Arztl Fortbild Qualitatssich 2000; 94:765-72. [PMID: 11127785] [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] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
In a postgraduate training course in general practice in Hamburg two different educational concepts were used and compared with each other. One was oriented more towards problem-based learning, the other more towards lectures. The participants were asked to fill in a written questionnaire after each day (n = 970) and at the end of the course (n = 26). Both courses achieved good results. On a five point scale the median of the general satisfaction was 4. The problem oriented course, however, was judged better than the other in many respects.
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Affiliation(s)
- S Dunkelberg
- Allgemeinmedizin und Gesundheitssystemforschung, Universität Hamburg.
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26
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Niemann D, van den Bussche H, Dunkelberg S, Becker-Philipps K. [Problem-based learning in graduate general practice education: the why and how]. Z Arztl Fortbild Qualitatssich 2000; 94:143-7. [PMID: 10782511] [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] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
This paper describes the experiences with different concepts of problem oriented learning in a postgraduate training course in general practice in Hamburg. It is argued that for postgraduate training of general practitioners a four-step-model is more adequate than the "classical" seven-step-model.
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Affiliation(s)
- D Niemann
- Universitätskrankenhaus Eppendorf, Arbeitsschwerpunkt Allgemeinmedizin und Gesundheitssystemforschung, Hamburg
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27
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Zheng J, Ghorpade A, Niemann D, Cotter RL, Thylin MR, Epstein L, Swartz JM, Shepard RB, Liu X, Nukuna A, Gendelman HE. Lymphotropic virions affect chemokine receptor-mediated neural signaling and apoptosis: implications for human immunodeficiency virus type 1-associated dementia. J Virol 1999; 73:8256-67. [PMID: 10482576 PMCID: PMC112843 DOI: 10.1128/jvi.73.10.8256-8267.1999] [Citation(s) in RCA: 111] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/1998] [Accepted: 07/09/1999] [Indexed: 11/20/2022] Open
Abstract
Chemokine receptors pivotal for human immunodeficiency virus type 1 (HIV-1) infection in lymphocytes and macrophages (CCR3, CCR5, and CXCR4) are expressed on neural cells (microglia, astrocytes, and/or neurons). It is these cells which are damaged during progressive HIV-1 infection of the central nervous system. We theorize that viral coreceptors could effect neural cell damage during HIV-1-associated dementia (HAD) without simultaneously affecting viral replication. To these ends, we studied the ability of diverse viral strains to affect intracellular signaling and apoptosis of neurons, astrocytes, and monocyte-derived macrophages. Inhibition of cyclic AMP, activation of inositol 1,4,5-trisphosphate, and apoptosis were induced by diverse HIV-1 strains, principally in neurons. Virions from T-cell-tropic (T-tropic) strains (MN, IIIB, and Lai) produced the most significant alterations in signaling of neurons and astrocytes. The HIV-1 envelope glycoprotein, gp120, induced markedly less neural damage than purified virions. Macrophage-tropic (M-tropic) strains (ADA, JR-FL, Bal, MS-CSF, and DJV) produced the least neural damage, while 89.6, a dual-tropic HIV-1 strain, elicited intermediate neural cell damage. All T-tropic strain-mediated neuronal impairments were blocked by the CXCR4 antibody, 12G5. In contrast, the M-tropic strains were only partially blocked by 12G5. CXCR4-mediated neuronal apoptosis was confirmed in pure populations of rat cerebellar granule neurons and was blocked by HA1004, an inhibitor of calcium/calmodulin-dependent protein kinase II, protein kinase A, and protein kinase C. Taken together, these results suggest that progeny HIV-1 virions can influence neuronal signal transduction and apoptosis. This process occurs, in part, through CXCR4 and is independent of CD4 binding. T-tropic viruses that traffic in and out of the brain during progressive HIV-1 disease may play an important role in HAD neuropathogenesis.
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Affiliation(s)
- J Zheng
- Center for Neurovirology and Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, Nebraska 68198-5215, USA
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28
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Zheng J, Thylin MR, Ghorpade A, Xiong H, Persidsky Y, Cotter R, Niemann D, Che M, Zeng YC, Gelbard HA, Shepard RB, Swartz JM, Gendelman HE. Intracellular CXCR4 signaling, neuronal apoptosis and neuropathogenic mechanisms of HIV-1-associated dementia. J Neuroimmunol 1999; 98:185-200. [PMID: 10430052 DOI: 10.1016/s0165-5728(99)00049-1] [Citation(s) in RCA: 258] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The mechanism(s) by which HIV-1 affects neural injury in HIV-1-associated dementia (HAD) remains unknown. To ascertain the role that cellular and viral macrophage products play in HAD neurotoxicity, we explored one potential route for neuronal demise, CXCR4. CXCR4, expressed on lymphocytes and neurons, is both a part of neural development and a co-receptor for HIV-1. Its ligand, stromal cell-derived factor-1alpha (SDF-1alpha), affects neuronal viability. GTP binding protein (G-protein) linked signaling after neuronal exposure to SDF-1alpha, virus-infected monocyte-derived macrophage (MDM) secretory products, and virus was determined. In both human and rat neurons, CXCR4 was expressed at high levels. SDF-1alpha/beta was detected predominantly in astrocytes and at low levels in MDM. SDF-1beta/beta was expressed in HAD brain tissue and upregulated in astrocytes exposed to virus infected and/or immune activated MDM conditioned media (fluids). HIV-1-infected MDM secretions, virus and SDF-1beta induced a G inhibitory (Gi) protein-linked decrease in cyclic AMP (cAMP) and increase inositol 1,4, 5-trisphosphate (IP3) and intracellular calcium. Such effects were partially blocked by antibodies to CXCR4 or removal of virus from MDM fluids. Changes in G-protein-coupled signaling correlated, but were not directly linked, to increased neuronal synaptic transmission, Caspase 3 activation and apoptosis. These data, taken together, suggest that CXCR4-mediated signal transduction may be a potential mechanism for neuronal dysfunction during HAD.
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Affiliation(s)
- J Zheng
- Department of Pathology, University of Nebraska Medical Center, Omaha 68198-5215, USA
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Steinkohl M, Niemann D. [General practice quality circles in the large city. Participation by Hamburg general physicians]. Z Arztl Fortbild (Jena) 1997; 90:747-51. [PMID: 9133116] [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] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Quality circles (peer review) will play an increasing and important role in ambulatory care when they are based on voluntary participation and in a setting of open discussion. Goal is the further qualification of physicians by critical reflections on their practice based on learning processes and the experiences of the participants. Reported are experiences from the unit for primary care and health service research of the Hamburg University on implementing quality circles. Engagement in quality assurance may be helpful in the shaping and professionalisation of general practice.
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Affiliation(s)
- M Steinkohl
- Arbeitsschwerpunkt Allgemeinmedizin und Gesundheitssystemforschung, Universität Hamburg
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Van Wyk AJ, Bekker P, Niemann D, Roesch H, Fourie PJ, Haasbroek FJ, Venter SS. Development and bioevaluation of (o)-82Br[77Br]-bromohippuran. Int J Appl Radiat Isot 1983; 34:1019-21. [PMID: 6618696 DOI: 10.1016/0020-708x(83)90085-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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