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Kaufmann JE, Gensicke H, Schaedelin S, Luft AR, Goeggel-Simonetti B, Fischer U, Michel P, Strambo D, Kägi G, Vehoff J, Nedeltchev K, Kahles T, Kellert L, Rosenbaum S, von Rennenberg R, Riegler C, Seiffge D, Sarikaya H, Zietz A, Wischmann J, Polymeris AA, Hänsel M, Globas C, Bonati LH, Brehm A, De Marchis GM, Peters N, Nolte CH, Christensen H, Wegener S, Psychogios MN, Arnold M, Lyrer P, Traenka C, Engelter ST. Toward Individual Treatment in Cervical Artery Dissection: Subgroup Analysis of the TREAT-CAD Randomized Trial. Ann Neurol 2024; 95:886-897. [PMID: 38362818 DOI: 10.1002/ana.26886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/28/2023] [Accepted: 01/23/2024] [Indexed: 02/17/2024]
Abstract
OBJECTIVE Uncertainty remains regarding antithrombotic treatment in cervical artery dissection. This analysis aimed to explore whether certain patient profiles influence the effects of different types of antithrombotic treatment. METHODS This was a post hoc exploratory analysis based on the per-protocol dataset from TREAT-CAD (NCT02046460), a randomized controlled trial comparing aspirin to anticoagulation in patients with cervical artery dissection. We explored the potential effects of distinct patient profiles on outcomes in participants treated with either aspirin or anticoagulation. Profiles included (1) presenting with ischemia (no/yes), (2) occlusion of the dissected artery (no/yes), (3) early versus delayed treatment start (>median), and (4) intracranial extension of the dissection (no/yes). Outcomes included clinical (stroke, major hemorrhage, death) and magnetic resonance imaging outcomes (new ischemic or hemorrhagic brain lesions) and were assessed for each subgroup in separate logistic models without adjustment for multiple testing. RESULTS All 173 (100%) per-protocol participants were eligible for the analyses. Participants without occlusion had decreased odds of events when treated with anticoagulation (odds ratio [OR] = 0.28, 95% confidence interval [CI] = 0.07-0.86). This effect was more pronounced in participants presenting with cerebral ischemia (n = 118; OR = 0.16, 95% CI = 0.04-0.55). In the latter, those with early treatment (OR = 0.26, 95% CI = 0.07-0.85) or without intracranial extension of the dissection (OR = 0.34, 95% CI = 0.11-0.97) had decreased odds of events when treated with anticoagulation. INTERPRETATION Anticoagulation might be preferable in patients with cervical artery dissection presenting with ischemia and no occlusion or no intracranial extension of the dissection. These findings need confirmation. ANN NEUROL 2024;95:886-897.
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Affiliation(s)
- Josefin E Kaufmann
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland
| | - Henrik Gensicke
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland
| | - Sabine Schaedelin
- Department of Clinical Research, Clinical Trial Unit, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Andreas R Luft
- Division of Vascular Neurology and Neurorehabilitation, Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
- Center for Neurology and Rehabilitation, Cereneo, Vitznau, Switzerland
| | - Barbara Goeggel-Simonetti
- Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland
- Department of Neuropediatrics, Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital, Bellinzona, Switzerland
| | - Urs Fischer
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Patrik Michel
- Stroke Center and Neurology Service, Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Davide Strambo
- Stroke Center and Neurology Service, Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Georg Kägi
- Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland
- Department of Neurology and Stroke Center, Cantonal Hospital St Gallen, St Gallen, Switzerland
| | - Jochen Vehoff
- Department of Neurology and Stroke Center, Cantonal Hospital St Gallen, St Gallen, Switzerland
| | - Krassen Nedeltchev
- Department of Neurology and Stroke Center, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Timo Kahles
- Department of Neurology and Stroke Center, Cantonal Hospital Aarau, Aarau, Switzerland
- Medical Faculty, University of Basel, Basel, Switzerland
| | - Lars Kellert
- Department of Neurology, Ludwig Maximilian University, Munich, Germany
- Institute for Stroke and Dementia Research, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Sverre Rosenbaum
- Department of Neurology, Bispebjerg Hospital and University of Copenhagen, Copenhagen, Denmark
| | - Regina von Rennenberg
- Department of Neurology with Experimental Neurology, Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Christoph Riegler
- Department of Neurology with Experimental Neurology, Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - David Seiffge
- Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Hakan Sarikaya
- Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Annaelle Zietz
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland
| | | | - Alexandros A Polymeris
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Martin Hänsel
- Division of Vascular Neurology and Neurorehabilitation, Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
| | - Christoph Globas
- Division of Vascular Neurology and Neurorehabilitation, Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
| | - Leo H Bonati
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Research Department, Reha Rheinfelden, Rheinfelden, Switzerland
| | - Alex Brehm
- Department of Neuroradiology, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
- Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland
| | - Gian Marco De Marchis
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Neurology and Stroke Center, Cantonal Hospital St Gallen, St Gallen, Switzerland
| | - Nils Peters
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland
| | - Christian H Nolte
- Department of Neurology with Experimental Neurology, Center for Stroke Research Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Healths at Charité, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Hanne Christensen
- Department of Neurology, Bispebjerg Hospital and University of Copenhagen, Copenhagen, Denmark
| | - Susanne Wegener
- Division of Vascular Neurology and Neurorehabilitation, Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland
| | - Marios-Nikos Psychogios
- Department of Neuroradiology, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
- Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland
| | - Marcel Arnold
- Department of Neurology, University Hospital Bern, University of Bern, Bern, Switzerland
| | - Philippe Lyrer
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Christopher Traenka
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland
| | - Stefan T Engelter
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine FELIX PLATTER, University of Basel, Basel, Switzerland
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Dittrich TD, von Streng T, Toebak AM, Zietz A, Wagner B, Hänsel M, Sutter R, Katan M, Peters N, Michels L, Kulcsár Z, Karwacki GM, Pileggi M, Cereda CW, Wegener S, Bonati LH, Psychogios M, De Marchis GM. Absent leptomeningeal collateralization is associated with greatest benefit from mechanical thrombectomy in the 6-24 hour time window. Eur Stroke J 2024:23969873241239208. [PMID: 38497536 DOI: 10.1177/23969873241239208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024] Open
Abstract
INTRODUCTION The impact of leptomeningeal collateralization on the efficacy of mechanical thrombectomy (MT) in patients with anterior circulation large vessel occlusion (aLVO) presenting in the 6-24 h time window remains poorly elucidated. PATIENTS AND METHODS Retrospective multicenter study of aLVO patients presenting between 6 and 24 h after stroke onset who received MT plus Best Medical Treatment (BMT) or BMT alone. Leptomeningeal collateralization was assessed using single-phase computed tomography angiography (grade 0: no filling; grade 1: filling ⩽50%; grade 2: filling >50% but <100%; grade 3: filling 100% of the occluded territory). Inverse probability of treatment weighted ordinal regression was performed to assess the association between treatment and shift of the modified Rankin Scale (mRS) score toward lower categories at 3 months. We used interaction analysis to explore differential treatment effects on functional outcomes (probabilities for each mRS subcategory at 3 months) at different collateral grades. RESULTS Among 363 included patients, 62% received MT + BMT. Better collateralization was associated with better functional outcomes at 3 months in the BMT alone group (collateral grade 1 vs 0: acOR 5.06, 95% CI 2.33-10.99). MT + BMT was associated with higher odds of favorable functional outcome at 3 months (acOR 1.70, 95% CI 1.11-2.62) which was consistent after adjustment for collateral status (acOR 1.54, 95% CI 1.01-2.35). Regarding treatment effect modification, patients with absent collateralization had higher probabilities for a mRS of 0-4 and a lower mortality at 3 months for the MT + BMT group. DISCUSSION AND CONCLUSION In the 6-to-24-h time window, aLVO patients with absent leptomeningeal collateralization benefit most from MT + BMT, indicating potential advantages for this group despite their poorer baseline prognosis.
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Affiliation(s)
- Tolga D Dittrich
- Department of Neurology and Stroke Center, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Tennessee von Streng
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Anna M Toebak
- Department of Neurology and Stroke Center, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Annaelle Zietz
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Benjamin Wagner
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Martin Hänsel
- Department of Neurology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Raoul Sutter
- Department of Clinical Research, University of Basel, Basel, Switzerland
- Department of Intensive Care Medicine, University Hospital Basel and University of Basel, Basel, Switzerland
- Medical Faculty, University Hospital Basel, Basel, Switzerland
| | - Mira Katan
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
- Medical Faculty, University Hospital Basel, Basel, Switzerland
| | - Nils Peters
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
- Department of Neurology and Stroke Center, Hirslanden Hospital Zurich, Zurich, Switzerland
| | - Lars Michels
- Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland
- Neuroscience Center Zurich, University of Zurich and Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
| | - Zsolt Kulcsár
- Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland
| | - Grzegorz M Karwacki
- Department of Radiology and Nuclear Medicine, Cantonal Hospital Lucerne, Lucerne, Switzerland
| | - Marco Pileggi
- Department of Neuroradiology EOC, Neurocenter of Southern Switzerland, Lugano, Switzerland
| | - Carlo W Cereda
- Department of Neurology and Stroke Center EOC, Neurocenter of Southern Switzerland, Lugano, Switzerland
| | - Susanne Wegener
- Department of Neurology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Leo H Bonati
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
- Rheinfelden Rehabilitation Clinic, Rheinfelden, Switzerland
| | - Marios Psychogios
- Department of Clinical Research, University of Basel, Basel, Switzerland
- Medical Faculty, University Hospital Basel, Basel, Switzerland
- Department of Neuroradiology, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Gian Marco De Marchis
- Department of Neurology and Stroke Center, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
- Department of Neurology and Stroke Center, University Hospital Basel and University of Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
- Medical Faculty, University Hospital Basel, Basel, Switzerland
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Müller MP, Metelmann C, Thies KC, Greif R, Scquizzato T, Deakin CD, Auricchio A, Barry T, Berglund E, Böttiger BW, Burkart R, Busch HJ, Caputo ML, Cheskes S, Cresta R, Damjanovic D, Degraeuwe E, Ekkel MM, Elschenbroich D, Fredman D, Ganter J, Gregers MCT, Gronewald J, Hänsel M, Henriksen FL, Herzberg L, Jonsson M, Joos J, Kooy TA, Krammel M, Marks T, Monsieurs K, Ng WM, Osche S, Salcido DD, Scapigliati A, Schwietring J, Semeraro F, Snobelen P, Sowa J, Stieglis R, Tan HL, Trummer G, Unterrainer J, Vercammen S, Wetsch WA, Metelmann B. Reporting standard for describing first responder systems, smartphone alerting systems, and AED networks. Resuscitation 2024; 195:110087. [PMID: 38097108 DOI: 10.1016/j.resuscitation.2023.110087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/15/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023]
Abstract
Standardized reporting of data is crucial for out-of-hospital cardiac arrest (OHCA) research. While the implementation of first responder systems dispatching volunteers to OHCA is encouraged, there is currently no uniform reporting standard for describing these systems. A steering committee established a literature search to identify experts in smartphone alerting systems. These international experts were invited to a conference held in Hinterzarten, Germany, with 40 researchers from 13 countries in attendance. Prior to the conference, participants submitted proposals for parameters to be included in the reporting standard. The conference comprised five workshops covering different aspects of smartphone alerting systems. Proposed parameters were discussed, clarified, and consensus was achieved using the Nominal Group Technique. Participants voted in a modified Delphi approach on including each category as a core or supplementary element in the reporting standard. Results were presented, and a writing group developed definitions for all categories and items, which were sent to participants for revision and final voting using LimeSurvey web-based software. The resulting reporting standard consists of 68 core items and 21 supplementary items grouped into five topics (first responder system, first responder network, technology/algorithm/strategies, reporting data, and automated external defibrillators (AED)). This proposed reporting standard generated by an expert opinion group fills the gap in describing first responder systems. Its adoption in future research will facilitate comparison of systems and research outcomes, enhancing the transfer of scientific findings to clinical practice.
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Affiliation(s)
- M P Müller
- Department of Anaesthesiology, Intensive Care and Emergency Medicine, St. Josefs Hospital, Freiburg, Germany; Region of Lifesavers, Freiburg, Germany; German Resuscitation Council (GRC), Ulm, Germany.
| | - C Metelmann
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Medicine Greifswald, Greifswald, Germany; German Resuscitation Council (GRC), Ulm, Germany
| | - K C Thies
- Department of Anaesthesiology and Critical Care, EvKB, Bielefeld University Hospitals, Campus Bethel, Bielefeld, Germany
| | - R Greif
- University of Bern, Bern, Switzerland; School of Medicine, Sigmund Freud University Vienna, Vienna, Austria; European Resuscitation Council, Niel, Belgium
| | - T Scquizzato
- Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy; Italian Resuscitation Council (IRC), Bologna, Italy
| | - C D Deakin
- Department of Anaesthesia, University Hospital Southampton, Southampton, UK, South Central Ambulance Service NHS Foundation Trust, Otterbourne, UK
| | - A Auricchio
- Division of Cardiology, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland; Fondazione Ticino Cuore, Lugano, Switzerland
| | - T Barry
- Department of General Practice, School of Medicine, University College Dublin, Dublin, Ireland
| | - E Berglund
- Center for Resuscitation Science, Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - B W Böttiger
- University of Cologne, Faculty of Medicine, and University Hospital of Cologne, Department of Anaesthesiology and Intensive Care Medicine, Cologne, Germany; German Resuscitation Council (GRC), Ulm, Germany; European Resuscitation Council, Niel, Belgium
| | - R Burkart
- Interverband für Rettungswesen IVR-IAS, Aarau, Switzerland; Swiss Resuscitation Council, Bern, Switzerland
| | - H J Busch
- Department of Emergency Medicine, Faculty of Medicine, University Hospital of Freiburg, University of Freiburg, Freiburg, Germany; Region of Lifesavers, Freiburg, Germany; German Resuscitation Council (GRC), Ulm, Germany
| | - M L Caputo
- Division of Cardiology, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland; Fondazione Ticino Cuore, Lugano, Switzerland
| | - S Cheskes
- Department of Family and Community Medicine, Division of Emergency Medicine, University of Toronto, Canada
| | - R Cresta
- Fondazione Ticino Cuore, Lugano, Switzerland; Federazione Cantonale Ticinese Servizi Autoambulanze (FCTSA), Bellinzona, Switzerland
| | - D Damjanovic
- Department of Cardiovascular Surgery, Faculty of Medicine, University Hospital of Freiburg, University of Freiburg, Germany
| | - E Degraeuwe
- Department of Internal Medicine and Pediatrics (GE35), Gent University, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Gent University Hospital, Ghent, Belgium; Belgian First Responder Network EVapp, Belgium
| | - M M Ekkel
- Amsterdam University Medical Center, Location AMC, Department of Cardiology, Amsterdam, the Netherlands
| | - D Elschenbroich
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - D Fredman
- Heartrunner Citizen Responder System, Heartrunner Sweden AB, Solna, Sweden
| | - J Ganter
- Department of Anesthesiology and Critical Care, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - M C T Gregers
- Emergency Medical Services, Capital Region of Denmark, Copenhagen, Denmark
| | - J Gronewald
- Department of Cardiovascular Surgery, Faculty of Medicine, University Hospital of Freiburg, University of Freiburg, Germany
| | - M Hänsel
- Carl Gustav Carus Faculty of Medicine, Carus Teaching Center, Technische Universität Dresden, Dresden, Germany
| | - F L Henriksen
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | - L Herzberg
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Medicine Greifswald, Greifswald, Germany
| | - M Jonsson
- Center for Resuscitation Science, Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - J Joos
- Region of Lifesavers, Freiburg, Germany
| | - T A Kooy
- Stan, Citizen Responder Network HartslagNu, Netherlands
| | - M Krammel
- Emergency Medical Service Vienna, Vienna, Austria; PULS Austrian Cardiac Arrest Awareness Association, Vienna, Austria
| | - T Marks
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Medicine Greifswald, Greifswald, Germany; Department of Surgery, Kreiskrankenhaus Demmin, Demmin, Germany
| | - K Monsieurs
- Antwerp University Hospital and University of Antwerp, Belgium; European Resuscitation Council, Niel, Belgium
| | - W M Ng
- Department of Emergency Medicine, Ng Teng Fong General Hospital, Singapore
| | - S Osche
- German Red Cross, Berlin, Germany; German Resuscitation Council (GRC), Ulm, Germany
| | - D D Salcido
- Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - A Scapigliati
- Insitute of Anesthesia and Intensive Care, Catholic University of the Sacred Heart, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Roma, Italy; Italian Resuscitation Council (IRC), Bologna, Italy
| | - J Schwietring
- ADAC Air Ambulance, Dept. of Medicine, Munich, Germany
| | - F Semeraro
- Department of Anaesthesia, Intensive Care and EMS, Maggiore Hospital, Bologna, Italy; European Resuscitation Council, Niel, Belgium
| | - P Snobelen
- Peel Regional Paramedic Services, Ontario, Canada
| | - J Sowa
- Department of Cardiovascular Surgery, Faculty of Medicine, University Hospital of Freiburg, University of Freiburg, Germany
| | - R Stieglis
- Amsterdam University Medical Center, Location AMC, Department of Cardiology, Amsterdam, the Netherlands
| | - H L Tan
- Department of Clinical and Experimental Cardiology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands; Netherlands Heart Institute, Utrecht, the Netherlands
| | - G Trummer
- Department of Cardiovascular Surgery, Faculty of Medicine, University Hospital of Freiburg, University of Freiburg, Germany; Region of Lifesavers, Freiburg, Germany; German Resuscitation Council (GRC), Ulm, Germany
| | - J Unterrainer
- Institute of Medical Psychology and Medical Sociology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - S Vercammen
- Department of Internal Medicine and Pediatrics, Gent University Hospital, Ghent, Belgium
| | - W A Wetsch
- University of Cologne, Faculty of Medicine, and University Hospital of Cologne, Department of Anaesthesiology and Intensive Care Medicine, Cologne, Germany; German Resuscitation Council (GRC), Ulm, Germany
| | - B Metelmann
- Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Medicine Greifswald, Greifswald, Germany; German Resuscitation Council (GRC), Ulm, Germany
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Pohl H, Neumeier MS, Hänsel M, Wegener S. The prevalence of head and face pain decreased from 1997 to 2017 in Switzerland. Pain Pract 2024. [PMID: 38251757 DOI: 10.1111/papr.13346] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
BACKGROUND Pain in the head and the face is highly prevalent but may have changed during the past years. This study aimed to analyze changes in the prevalence of pain in the head and the face in Switzerland from 1997 to 2017. METHODS This is a secondary analysis of data collected in the Swiss Health Surveys of 1997-2017. Included persons were 15 years and older. Besides studying demographic data, we analyze the item assessing the presence of "headache, pressure in the head, or facial pain" during the past 4 weeks. Percentages with their Wilson confidence intervals are reported for each response option of categorical variables. Moreover, we calculate the age-standardized number of persons affected by the pain. RESULTS While 41% reported head and face pain in 1997, the proportion dropped to 31% in 2017. There was a decrease of 19.5% in women and 29.4% in men; after age standardization, the decrease was 16.5% in women and 25.4% in men. The most considerable numerical changes in the percentages of women with pain occurred in those aged 55-69 and 85 and above. In men, the changes were not limited to specific age groups. CONCLUSIONS The proportion of people reporting headaches, pressure in the head, or facial pain has dropped in Switzerland from 1997 to 2017. However, in women, the prevalence diminished more strongly and consistently in the middle-aged and the elderly than in the young.
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Affiliation(s)
- Heiko Pohl
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | | | - Martin Hänsel
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
| | - Susanne Wegener
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland
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Pelliccia F, Hänsel M, Wegener S, Camici PG. Concomitant Takotsubo Syndrome and stroke: Two separate disorders or do they share a common etiology? Eur J Prev Cardiol 2023:zwad323. [PMID: 37811669 DOI: 10.1093/eurjpc/zwad323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 09/21/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Affiliation(s)
| | - Martin Hänsel
- Department of Neurology and Clinical Neuroscience Center, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Susanne Wegener
- Department of Neurology and Clinical Neuroscience Center, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Paolo G Camici
- Vita-Salute University and IRCCS San Raffaele Hospital, Milan, Italy
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Hänsel M, Schmitz-Peiffer H, Hähner A, Reichmann H, Schneider H. Olfactory dysfunction after autoimmune encephalitis depending on the antibody type and limbic MRI pathologies. Front Neurol 2023; 14:1225975. [PMID: 37693764 PMCID: PMC10486887 DOI: 10.3389/fneur.2023.1225975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 08/01/2023] [Indexed: 09/12/2023] Open
Abstract
Objective Patients' olfactory function after autoimmune encephalitis (AE) involving limbic structures may be impaired. This study aimed to characterize olfactory function in patients after autoimmune encephalitides. Methods A case-control study was performed including 11 AE patients with antibodies against NMDAR (n = 4), GAD (n = 3), VGKC (n = 3) and antibody-negative AE (n = 1) and a control group of 12 patients with pneumococcal meningo-encephalitis (PC). In subgroup analyses, AE patients with and without NMDAR-antibodies were compared. Olfactory function was assessed using the Sniffin Sticks test and the resulting TDI-score (threshold, discrimination, identification). Involvement of limbic structures was evaluated on imaging data (MRI). Statistical analyses were performed to test for correlations of TDI-score and MRI results. Results The overall olfactory function of the AE-group and the PC-group was comparable (mean TDI 32.0 [CI 27.3-36.7], 32.3 [CI 28.5-36.0)]. The proportions of hyposmic patients were similar compared to the general population. However, AE patients of the non-NMDAR group had significantly lower TDI-scores (28.9 ± 6,8) than NMDAR patients (37.4 ± 3.5) (p = 0.046) and a significantly lower discrimination capability than the NMDAR patients (9.9 ± 2.0 vs. 14.5 ± 0.6) (p = 0.002). The non-NMDAR patients had significantly more limbic MRI pathologies (6/7) compared to the NMDAR patients (0/4) (p = 0.015). Furthermore, a correlation between limbic MRI pathologies and worse capability of smelling discrimination was found (p = 0.016, r = -0.704, n = 11). Conclusion Our results indicate that patients with NMDAR autoimmune encephalitis have normal long term olfactory function. However, patients with non-NMDAR autoimmune encephalitis appear to have a persistently impaired olfactory function, probably mediated by encephalitic damage to limbic structures.
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Affiliation(s)
- Martin Hänsel
- Department of Neurology, University of Dresden, Dresden, Germany
- Department of Internal Medicine, GZO – Zurich Regional Health Center, Wetzikon, Switzerland
| | | | - Antje Hähner
- Smell and Taste Clinic, Department of Otorhinolaryngology, Medical Faculty Carl-Gustav Carus, Technical University of Dresden, Dresden, Germany
| | - Heinz Reichmann
- Department of Neurology, University of Dresden, Dresden, Germany
| | - Hauke Schneider
- Department of Neurology, University of Dresden, Dresden, Germany
- Department of Neurology, Augsburg University Hospital, Augsburg, Germany
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7
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Dittrich TD, Sporns PB, Kriemler LF, Rudin S, Nguyen A, Zietz A, Polymeris AA, Tränka C, Thilemann S, Wagner B, Altersberger VL, Piot I, Barinka F, Müller S, Hänsel M, Gensicke H, Engelter ST, Lyrer PA, Sutter R, Nickel CH, Katan M, Peters N, Kulcsár Z, Karwacki GM, Pileggi M, Cereda C, Wegener S, Bonati LH, Fischer U, Psychogios M, De Marchis GM. Mechanical Thrombectomy Versus Best Medical Treatment in the Late Time Window in Non-DEFUSE-Non-DAWN Patients: A Multicenter Cohort Study. Stroke 2023; 54:722-730. [PMID: 36718751 PMCID: PMC10561685 DOI: 10.1161/strokeaha.122.039793] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 10/21/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND We assessed the efficacy and safety of mechanical thrombectomy (MT) in adult stroke patients with anterior circulation large vessel occlusion presenting in the late time window not fulfilling the DEFUSE-3 (Thrombectomy for Stroke at 6 to 16 Hours With Selection by Perfusion Imaging trial) and DAWN (Thrombectomy 6 to 24 Hours After Stroke With a Mismatch Between Deficit and Infarct trial) inclusion criteria. METHODS Cohort study of adults with anterior circulation large vessel occlusion admitted between 6 and 24 hours after last-seen-well at 5 participating Swiss stroke centers between 2014 and 2021. Mismatch was assessed by computer tomography or magnetic resonance imaging perfusion with automated software (RAPID or OLEA). We excluded patients meeting DEFUSE-3 and DAWN inclusion criteria and compared those who underwent MT with those receiving best medical treatment alone by inverse probability of treatment weighting using the propensity score. The primary efficacy end point was a favorable functional outcome at 90 days, defined as a modified Rankin Scale score shift toward lower categories. The primary safety end point was symptomatic intracranial hemorrhage within 7 days of stroke onset; the secondary was all-cause mortality within 90 days. RESULTS Among 278 patients with anterior circulation large vessel occlusion presenting in the late time window, 190 (68%) did not meet the DEFUSE-3 and DAWN inclusion criteria and thus were included in the analyses. Of those, 102 (54%) received MT. In the inverse probability of treatment weighting analysis, patients in the MT group had higher odds of favorable outcomes compared with the best medical treatment alone group (modified Rankin Scale shift: acOR, 1.46 [1.02-2.10]; P=0.04) and lower odds of all-cause mortality within 90 days (aOR, 0.59 [0.37-0.93]; P=0.02). There were no significant differences in symptomatic intracranial hemorrhage (MT versus best medical treatment alone: 5% versus 2%, P=0.63). CONCLUSIONS Two out of 3 patients with anterior circulation large vessel occlusion presenting in the late time window did not meet the DEFUSE-3 and DAWN inclusion criteria. In these patients, MT was associated with higher odds of favorable functional outcomes without increased rates of symptomatic intracranial hemorrhage. These findings support the enrollment of patients into ongoing randomized trials on MT in the late window with more permissive inclusion criteria.
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Affiliation(s)
- Tolga D Dittrich
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Peter B Sporns
- Department of Neuroradiology, University Hospital Basel, Switzerland (P.B.S., A.N., M.P.)
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany (P.B.S.)
| | - Lilian F Kriemler
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
- Clinic for Internal Medicine, Cantonal Hospital Schaffhausen, Switzerland (L.F.K.)
| | - Salome Rudin
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Anh Nguyen
- Department of Neuroradiology, University Hospital Basel, Switzerland (P.B.S., A.N., M.P.)
| | - Annaelle Zietz
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Alexandros A Polymeris
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Christopher Tränka
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Sebastian Thilemann
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Benjamin Wagner
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Valerian L Altersberger
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Ines Piot
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Filip Barinka
- Department of Neurology and Stroke Center, Hirslanden Hospital Zurich, Switzerland (F.B., N.P.)
| | - Susanne Müller
- Department of Neuroradiology, University Hospital Zurich, Switzerland (S.M.)
| | - Martin Hänsel
- Department of Neurology, University Hospital Zurich and University of Zurich, Switzerland (M.H., S.W.)
| | - Henrik Gensicke
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine Felix Platter, Basel, Switzerland (H.G., S.T.E.)
| | - Stefan T Engelter
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine Felix Platter, Basel, Switzerland (H.G., S.T.E.)
| | - Philippe A Lyrer
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Raoul Sutter
- Department of Intensive Care Medicine, University Hospital Basel, Switzerland (R.S.)
| | - Christian H Nickel
- Emergency Department University Hospital Basel and University of Basel, Switzerland (C.H.N.)
| | - Mira Katan
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Nils Peters
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
- Department of Neurology and Stroke Center, Hirslanden Hospital Zurich, Switzerland (F.B., N.P.)
| | - Zsolt Kulcsár
- Department of Neuroradiology, University Hospital Zurich, Switzerland (Z.K.)
| | - Grzegorz M Karwacki
- Department of Radiology and Nuclear Medicine, Cantonal Hospital of Lucerne, Switzerland (G.M.K.)
| | - Marco Pileggi
- Department of Neuroradiology, University Hospital Basel, Switzerland (P.B.S., A.N., M.P.)
| | - Carlo Cereda
- Department of Neurology and Stroke Center, EOC Neurocenter of Southern Switzerland, Lugano, Switzerland (C.C.)
| | - Susanne Wegener
- Department of Neurology, University Hospital Zurich and University of Zurich, Switzerland (M.H., S.W.)
| | - Leo H Bonati
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
- Rheinfelden Rehabilitation Clinic, Switzerland (L.H.B.)
| | - Urs Fischer
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
| | - Marios Psychogios
- Department of Neuroradiology, EOC Neurocenter of Southern Switzerland, Lugano, Switzerland (M.P.)
| | - Gian Marco De Marchis
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland (T.D.D., L.F.K., S.R., A.Z., A.A.P., C.T., S.T., B.W., V.L.A., I.P., H.G., S.T.E., P.A.L., M.K., N.P., L.H.B., U.F., G.M.D.M.)
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8
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Herzog L, Kook L, Götschi A, Petermann K, Hänsel M, Hamann J, Dürr O, Wegener S, Sick B. Deep transformation models for functional outcome prediction after acute ischemic stroke. Biom J 2022. [PMID: 36494091 DOI: 10.1002/bimj.202100379] [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: 11/30/2021] [Revised: 09/13/2022] [Accepted: 10/20/2022] [Indexed: 12/14/2022]
Abstract
In many medical applications, interpretable models with high prediction performance are sought. Often, those models are required to handle semistructured data like tabular and image data. We show how to apply deep transformation models (DTMs) for distributional regression that fulfill these requirements. DTMs allow the data analyst to specify (deep) neural networks for different input modalities making them applicable to various research questions. Like statistical models, DTMs can provide interpretable effect estimates while achieving the state-of-the-art prediction performance of deep neural networks. In addition, the construction of ensembles of DTMs that retain model structure and interpretability allows quantifying epistemic and aleatoric uncertainty. In this study, we compare several DTMs, including baseline-adjusted models, trained on a semistructured data set of 407 stroke patients with the aim to predict ordinal functional outcome three months after stroke. We follow statistical principles of model-building to achieve an adequate trade-off between interpretability and flexibility while assessing the relative importance of the involved data modalities. We evaluate the models for an ordinal and dichotomized version of the outcome as used in clinical practice. We show that both tabular clinical and brain imaging data are useful for functional outcome prediction, whereas models based on tabular data only outperform those based on imaging data only. There is no substantial evidence for improved prediction when combining both data modalities. Overall, we highlight that DTMs provide a powerful, interpretable approach to analyzing semistructured data and that they have the potential to support clinical decision-making.
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Affiliation(s)
- Lisa Herzog
- Epidemiology, Biostatistics & Prevention Institute University of Zürich Zürich Switzerland
- Institute for Data Analysis and Process Design Zurich University of Applied Sciences Winterthur Switzerland
- Department of Neurology University Hospital Zurich Zürich Switzerland
| | - Lucas Kook
- Epidemiology, Biostatistics & Prevention Institute University of Zürich Zürich Switzerland
- Institute for Data Analysis and Process Design Zurich University of Applied Sciences Winterthur Switzerland
| | - Andrea Götschi
- Epidemiology, Biostatistics & Prevention Institute University of Zürich Zürich Switzerland
| | - Katrin Petermann
- Epidemiology, Biostatistics & Prevention Institute University of Zürich Zürich Switzerland
| | - Martin Hänsel
- Department of Neurology University Hospital Zurich Zürich Switzerland
| | - Janne Hamann
- Department of Neurology University Hospital Zurich Zürich Switzerland
| | - Oliver Dürr
- Institute for Optical Systems Konstanz University of Applied Sciences Konstanz Germany
| | - Susanne Wegener
- Department of Neurology University Hospital Zurich Zürich Switzerland
| | - Beate Sick
- Epidemiology, Biostatistics & Prevention Institute University of Zürich Zürich Switzerland
- Institute for Data Analysis and Process Design Zurich University of Applied Sciences Winterthur Switzerland
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9
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Dittrich TD, Sporns P, Kriemler L, Rudin S, Nguyen A, Zietz A, Polymeris AA, Tränka C, Thilemann S, Wagner B, Altersberger V, Piot I, Barinka F, Hänsel M, Gensicke H, Engelter S, Lyrer PA, Sutter R, Nickel C, Katan M, Peter N, Michels L, Kulcsar Z, Karwacki G, Pileggi M, Cereda CW, Wegener S, Bonati L, Fischer U, Psychogios M, De Marchis GM. Mechanical Thrombectomy For Large Vessel Occlusion Between 6 And 24 Hours: Outcome Comparison Of Defuse-3/Dawn Eligible Versus Non-Eligible Patients. Int J Stroke 2022:17474930221140793. [DOI: 10.1177/17474930221140793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Background: The DEFUSE-3 and DAWN trials showed that mechanical thrombectomy (MT) improves the outcome of selected patients with large vessel occlusions in the anterior circulation (LVO) up to 24 hours of stroke onset. However, it is unknown whether only those patients fulfilling the trial inclusion criteria benefit, or whether benefit is seen in a broader range of patients presenting between 6 and 24 hours. Aims: We determined whether fulfilling the DEFUSE-3 and DAWN selection criteria affects outcomes in MT patients in clinical practice. Methods: We reviewed adult patients with LVO treated with MT between 6 and 24 hours after stroke onset at five Swiss stroke centers between 2014 and 2021. We compared two groups: (1) patients who satisfied neither DEFUSE-3 nor DAWN criteria (NDND); and (2) those who satisfied DEFUSE-3 or DAWN criteria (DOD). We used logistic regression to examine the impact of trial eligibility on two safety outcomes (symptomatic intracranial hemorrhage [sICH] and all-cause mortality at three months) and two efficacy outcomes (modified Rankin Score [mRS] shift toward lower categories and mRS of 0-2 at three months). Results: Of 174 patients who received MT, 102 (59%) belonged to the NDND group. Rates of sICH were similar between the NDND group and the DOD group (3% vs. 4%, p=1.00). Multivariable regression revealed no differences in 3-month all-cause mortality (aOR 2.07, 95%CI 0.64-6.84, p=0.23) or functional outcomes (mRS shift: acOR 0.81, 95%CI 0.37-1.79, p=0.60; mRS 0-2: aOR 0.91, 95%CI 0.31-2.57, p=0.85). Conclusion: Among adult patients with LVO treated with MT between 6 and 24 hours, safety and efficacy outcomes were similar between DEFUSE-3/DAWN eligible vs. ineligible patients. Our data provide a compelling rationale for randomized trials with broader inclusion criteria for MT.
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Affiliation(s)
- Tolga Daniel Dittrich
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Peter Sporns
- Department of Neuroradiology, University Hospital Basel, Switzerland
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany
| | - Lilian Kriemler
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
- Clinic for Internal Medicine, Cantonal Hospital Schaffhausen, Switzerland
| | - Salome Rudin
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Anh Nguyen
- Department of Neuroradiology, University Hospital Basel, Switzerland
| | - Annaelle Zietz
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | | | - Christopher Tränka
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Sebastian Thilemann
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Benjamin Wagner
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Valerian Altersberger
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Ines Piot
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Filip Barinka
- Department of Neurology and Stroke Center, Hirslanden Hospital Zurich, Switzerland
| | - Martin Hänsel
- Department of Neurology, University Hospital and University of Zurich, Switzerland
| | - Henrik Gensicke
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine Felix Platter, Switzerland
| | - Stefan Engelter
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
- Neurology and Neurorehabilitation, University Department of Geriatric Medicine Felix Platter, Switzerland
| | - Philippe A Lyrer
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Raoul Sutter
- Department of Intensive Care Medicine, University Hospital Basel and University of Basel, Switzerland
| | - Christian Nickel
- Emergency Department, University Hospital Basel and University of Basel, Switzerland
| | - Mira Katan
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
- Department of Neurology, University Hospital and University of Zurich, Switzerland
| | - Nils Peter
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
- Department of Neurology and Stroke Center, Hirslanden Hospital Zurich, Switzerland
| | - Lars Michels
- Department of Neuroradiology, University Hospital Zurich, Switzerland
- Neuroscience Center Zurich, University of Zurich and Swiss Federal Institute of Technology Zurich, Switzerland
| | - Zsolt Kulcsar
- Department of Neuroradiology, University Hospital Zurich, Switzerland
| | - Grzegorz Karwacki
- Department of Radiology and Nuclear Medicine, Cantonal Hospital of Lucerne, Switzerland
| | - Marco Pileggi
- Department of Neuroradiology, EOC Neurocenter of Southern Switzerland, Switzerland
| | - Carlo W. Cereda
- Department of Neurology and Stroke Center, EOC Neurocenter of Southern Switzerland, Switzerland
| | - Susanne Wegener
- Department of Neurology, University Hospital and University of Zurich, Switzerland
| | - Leo Bonati
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
- Rheinfelden Rehabilitation Clinic, Switzerland
| | - Urs Fischer
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
| | - Marios Psychogios
- Department of Neuroradiology, University Hospital Basel, Switzerland
| | - Gian Marco De Marchis
- Department of Neurology, University Hospital Basel and University of Basel, Switzerland
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10
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Hänsel M, Steigmiller K, Luft AR, Gebhard C, Held U, Wegener S. Neurovascular disease in Switzerland: 10-year trends show non-traditional risk factors on the rise and higher exposure in women. Eur J Neurol 2022; 29:2851-2860. [PMID: 35661347 PMCID: PMC9541902 DOI: 10.1111/ene.15434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 05/30/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Effective risk factor modification is the prerequisite to prevent neurovascular disease such as stroke or vascular dementia. Non-traditional vascular risk factors (nt-vrf) including stress significantly add to risk of neurovascular disease arising from traditional vascular risk factors (t-vrf). In order to discover sex-specific changes that may underlie previously reported inclines in the prevalence of neuro- and cardiovascular disease in women, we assessed 10-year trends in the prevalence of vrf in Switzerland. METHODS We obtained anonymized data from 22'134 participants (51% women) of the governmental Swiss Health Survey, performed every five years (2007, 2012, and 2017). Epidemiological parameters, t-vrf and nt-vrf were analyzed in a cross-sectional study design. RESULTS Over the observation period, the number of women having full-time jobs increased considerably (2007: 38%, 2012: 39%, 2017: 44%). This was accompanied by a substantial rise in the prevalence of nt-vrf in women and men (w/m) including stress at work (2007: not available, 2012: 58%/60%, 2017: 66%/65%), low locus of control (w/m: 2007: 21%/19%, 2012: 22%/19%, 2017: 25%/22%), and sleep disorders (w/m: 2007: 30%/22%, 2012: 28%/20%, 2017: 32%/26%). Amongst t-vrf, only the prevalence of obesity and hypercholesterolemia increased over time in both sexes, while other t-vrf remained stable (hypertension [27%], diabetes [5%]) or decreased (smoking [9.4 cigarettes/day]). CONCLUSIONS A rise in women's economic participation alongside a higher affection with nt-vrf in the female Swiss population emphasizes the need to improve vascular risk stratification and implement effective preventive measures for neuro- and cardiovascular disease.
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Affiliation(s)
- Martin Hänsel
- Department of Neurology and Clinical Neuroscience Center, University Hospital Zurich and University of Zurich, Switzerland
| | - Klaus Steigmiller
- Department of Biostatistics at Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Switzerland
| | - Andreas R Luft
- Department of Neurology and Clinical Neuroscience Center, University Hospital Zurich and University of Zurich, Switzerland
| | - Catherine Gebhard
- Department of Nuclear Medicine, University Hospital Zurich and University of Zurich, Switzerland
| | - Ulrike Held
- Department of Biostatistics at Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Switzerland
| | - Susanne Wegener
- Department of Neurology and Clinical Neuroscience Center, University Hospital Zurich and University of Zurich, Switzerland
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11
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Wolpert F, Kulcsár Z, Hänsel M, Rushing E, Seystahl K, Schweizer J, Roth P, Luft AR, Wegener S, Weller M. Embolization of tumor cells is rare in patients with systemic cancer and cerebral large vessel occlusion. Eur J Neurol 2020; 27:2041-2046. [PMID: 32492228 DOI: 10.1111/ene.14372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Stroke is a dreaded complication in patients with cancer. Besides paraneoplastic coagulopathy, chemotherapy, radiotherapy and tumor-directed invasive procedures, circulating cancer cells may contribute to thrombus formation and embolic stroke. However, the incidence of tumor cells within the blood clots of cancer patients with stroke is unknown and the role of circulating tumor cells in the formation of cerebrovascular thrombi remains unclear. METHODS All patients who had undergone cerebrovascular thrombectomy at the University Hospital Zurich between 2014 and 2017 were screened for history of cancer. Clinical information was retrieved from the local stroke registry and the electronic charts and thrombi underwent a thorough histopathological re-review. RESULTS Thirty-two of 182 patients (18%) with thrombectomy had a history of cancer. The majority of patients had advanced stage cancer. However, even after extensive histopathological re-review, only one specimen revealed tumor cells in the thrombus: a 75-year-old patient with acute occlusion of the middle cerebral artery who had been diagnosed with non-small-cell lung cancer 8.1 months prior to stroke. CONCLUSIONS The presence of cancer cells in clots from cerebrovascular thrombectomy, indicative of a direct involvement of circulating tumor cells in the causation of stroke, is rare.
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Affiliation(s)
- F Wolpert
- Department of Neurology and Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - Z Kulcsár
- Department of Neuroradiology, University Hospital Zurich, Zurich, Switzerland
| | - M Hänsel
- Department of Neurology and Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - E Rushing
- Department of Neuropathology, University Hospital Zurich, Zurich, Switzerland
| | - K Seystahl
- Department of Neurology and Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - J Schweizer
- Department of Neurology and Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - P Roth
- Department of Neurology and Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - A R Luft
- Department of Neurology and Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland.,Cereneo Center for Neurology and Rehabilitation, Vitznau, Switzerland
| | - S Wegener
- Department of Neurology and Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland
| | - M Weller
- Department of Neurology and Clinical Neuroscience Center, University Hospital and University of Zurich, Zurich, Switzerland
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12
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Voss R, Quaas MF, Stiasny MH, Hänsel M, Stecher Justiniano Pinto GA, Lehmann A, Reusch TBH, Schmidt JO. Ecological-economic sustainability of the Baltic cod fisheries under ocean warming and acidification. J Environ Manage 2019; 238:110-118. [PMID: 30849595 DOI: 10.1016/j.jenvman.2019.02.105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 02/18/2019] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
Human-induced climate change such as ocean warming and acidification, threatens marine ecosystems and associated fisheries. In the Western Baltic cod stock socio-ecological links are particularly important, with many relying on cod for their livelihoods. A series of recent experiments revealed that cod populations are negatively affected by climate change, but an ecological-economic assessment of the combined effects, and advice on optimal adaptive management are still missing. For Western Baltic cod, the increase in larval mortality due to ocean acidification has experimentally been quantified. Time-series analysis allows calculating the temperature effect on recruitment. Here, we include both processes in a stock-recruitment relationship, which is part of an ecological-economic optimization model. The goal was to quantify the effects of climate change on the triple bottom line (ecological, economic, social) of the Western Baltic cod fishery. Ocean warming has an overall negative effect on cod recruitment in the Baltic. Optimal management would react by lowering fishing mortality with increasing temperature, to create a buffer against climate change impacts. The negative effects cannot be fully compensated, but even at 3 °C warming above the 2014 level, a reduced but viable fishery would be possible. However, when accounting for combined effects of ocean warming and acidification, even optimal fisheries management cannot adapt to changes beyond a warming of +1.5° above the current level. Our results highlight the need for multi-factorial climate change research, in order to provide the best available, most realistic, and precautionary advice for conservation of exploited species as well as their connected socio-economic systems.
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Affiliation(s)
- Rudi Voss
- Sustainable Fishery, Department of Economics, Christian-Albrechts-Universität zu Kiel, Kiel, Germany; Biodiversity Economics, German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany.
| | - Martin F Quaas
- Biodiversity Economics, German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany; Department of Economics, Leipzig University, Grimmaische Str. 12, 04109, Leipzig, Germany
| | - Martina H Stiasny
- Sustainable Fishery, Department of Economics, Christian-Albrechts-Universität zu Kiel, Kiel, Germany; GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - Martin Hänsel
- Sustainable Fishery, Department of Economics, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | | | - Andreas Lehmann
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - Thorsten B H Reusch
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany
| | - Jörn O Schmidt
- Sustainable Fishery, Department of Economics, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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13
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Glaab T, Hänsel M, Sauer R, Rubin RA, Buhl R. Treatment with Tiotropium plus Olodaterol Respimat improves physical functioning of COPD patients in a real life setting. Pneumologie 2016. [DOI: 10.1055/s-0036-1572084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Tukaj S, Hellberg L, Ueck C, Hänsel M, Samavedam U, Zillikens D, Ludwig RJ, Laskay T, Kasperkiewicz M. Heat shock protein 90 is required forex vivoneutrophil-driven autoantibody-induced tissue damage in experimental epidermolysis bullosa acquisita. Exp Dermatol 2015; 24:471-3. [DOI: 10.1111/exd.12680] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Stefan Tukaj
- Department of Dermatology; University of Lübeck; Lübeck Germany
| | - Lars Hellberg
- Institute of Medical Microbiology and Hygiene; University of Lübeck; Lübeck Germany
| | - Christopher Ueck
- Institute of Medical Microbiology and Hygiene; University of Lübeck; Lübeck Germany
| | - Martin Hänsel
- Department of Dermatology; University of Lübeck; Lübeck Germany
| | - Unni Samavedam
- Department of Dermatology; University of Lübeck; Lübeck Germany
| | | | - Ralf J. Ludwig
- Department of Dermatology; University of Lübeck; Lübeck Germany
| | - Tamás Laskay
- Institute of Medical Microbiology and Hygiene; University of Lübeck; Lübeck Germany
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15
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Hellberg L, Samavedam UK, Holdorf K, Hänsel M, Recke A, Beckmann T, Steinhorst K, Boehncke WH, Kirchner T, Möckel N, Solbach W, Zillikens D, Schmidt E, Ludwig RJ, Laskay T. Methylprednisolone Blocks Autoantibody-Induced Tissue Damage in Experimental Models of Bullous Pemphigoid and Epidermolysis Bullosa Acquisita through Inhibition of Neutrophil Activation. J Invest Dermatol 2013; 133:2390-2399. [DOI: 10.1038/jid.2013.91] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 12/16/2012] [Accepted: 01/29/2013] [Indexed: 12/18/2022]
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16
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Hänsel M, Winkelmann AM, Hardt F, Gijselaers W, Hacker W, Stiehl M, Koch T, Müller MP. Impact of simulator training and crew resource management training on final-year medical students' performance in sepsis resuscitation: a randomized trial. Minerva Anestesiol 2012; 78:901-909. [PMID: 22504855] [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: 05/31/2023]
Abstract
BACKGROUND We developed a 1.5 days crew resource management (CRM) course on situation awareness (SA) to improve the participants' ability to recognise critical situations in crisis scenarios. Objective of the study was to evaluate the influence of the CRM course on SA and medical performance in crisis scenarios and to compare the results with the effects of a purely clinical simulator training. METHODS Sixty-one final-year medical students, randomized into three groups, took part in a pre-intervention test scenario of septic shock in a patient simulator setting. Medical performance and SA were assessed using a checklist and the Situation Awareness Global Assessment Tool (SAGAT), respectively. All students received a lecture about the sepsis guidelines. The simulator (SIM) group took part in a 1.5-day simulator training on sepsis resuscitation. The CRM group took part in a course on situation awareness. The control group (CG) did not obtain any training. All students accomplished a post-intervention test scenario comparable to the pre-intervention scenario. RESULTS The SAGAT score rose from 10.6±2.3 to 11.9±1.7 (preintervention vs. postintervention test, P=0.04) in the SIM group, whereas no significant changes could be shown in the CRM group and the control group, respectively. The clinical performance scores in the post-intervention test did not differ from those in the preintervention test. CONCLUSION Neither the 1.5 days simulator training nor the 1.5 days CRM course did influence the clinical performance scores. SAGAT scores were higher after the simulator training, but not after the CRM training.
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Affiliation(s)
- M Hänsel
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, University of Technology, Dresden, Germany
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17
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Abstract
A retrospective analysis of 77 children treated between 1974 and 1996 was undertaken to evaluate morbidity and the evolution of therapy. A Wilms' tumor (WT) was present in 73 children. 74% of patients (pats.) with WT survived (54 of 73 pats.). Histological specimens of 67 patients were re-evaluated, including 4 children with non-WT histology. Among patients with Wilms' tumors (WT), nephroblastoma (NB) of intermediate risk predominated (73%; 46 of 63 pats.). Low-risk tumors occurred in 5 of 63 children (8%; mesoblastic nephroma 3, cystic partially diff. NB 1, completely necrotic NB 1). High-risk WT were diagnosed in 12 of 63 patients (19%) (NB with anaplasia 10, clear cell sarcoma 1, malignant rhabdoid tumor 1). Nephrogenic rests were present in 14 cases. We observed 3 children of school age with renal carcinoma and one patient with an intrarenal neuroblastoma. WT histology was the most important factor determining prognosis (p = 0.018). The risk for relapses was 2.6-fold higher in patients with high-risk WT compared to the standard risk group. Stages were re-evaluated according to SIOP 93-01. Comparing relapse-free survival of stages I, II and III, respectively, there was a reduced survival rate for stage III (p=0.019). According to the SIOP/GPOH protocol in 1989, the regimen was switched from primary surgery to preoperative chemotherapy without biopsy in 1989 (11 pats.). Compared to earlier years, survival improved (n.s.). In 3 patients preoperative diagnosis by means of imaging failed. During preoperative chemotherapy a venous occlusive disease of the liver occurred in 2 patients. Preoperative chemotherapy led to an impressive tumor shrinkage in the majority of patients. 2 patients of the preoperative group died (focal anaplastic NB). Long-term morbidity was analysed in 49 patients and included radiation-induced scoliosis (35), chest-wall deformity (3), congestive cardiomyopathy after relapse (1) and arterial hypertension (2). Over the years there was a trend to reduce frequency and dose of irradiation. Prognosis of WT is excellent but unfavorable histology (high risk) predicts a poor prognosis. In our experience, reduction of tumor volume due to preoperative chemotherapy facilitates tumor removal by surgery and may prevent tumor spillage and the deleterious effects of radiation in young children. Surgery without delay is necessary if the diagnosis is unclear or the tumor fails to respond to preoperative chemotherapy.
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Affiliation(s)
- R B Tröbs
- Klinik und Poliklinik für Kinderchirurgie, Universität Leipzig, Germany
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18
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Steinmeyer G, Buchholz A, Hänsel M, Heuer M, Schwache A, Mitschke F. Dynamical pulse shaping in a nonlinear resonator. Phys Rev A 1995; 52:830-838. [PMID: 9912306 DOI: 10.1103/physreva.52.830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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19
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Abstract
Human malignant gliomas are frequently associated with loss of gonosomes and chromosomes 13, 17, and 22. Their progression from anaplastic glioma to glioblastoma is marked by additional loss of chromosome 10. In addition, structural and numerical aberrations of chromosome 7 are frequently found. We report on the karyotypes of a series of 20 human gliomas of which 11 were analysed as established cell lines; 9 cases were investigated in early culture, 5 of which later also became established lines. In addition to the frequently reported overrepresentation of chromosome 7, four cell lines with polysomy for chromosome 22 were seen. A high incidence of structural chromosomal aberrations was present in early cultures as well as in cell lines after various in vitro passages. We found that the general characteristics of karyotypic aberrations found in early cultures or direct preparations of dispersed tumour material were reflected in the pattern of aberrations present in cell lines at much later time points. Thus it appears as if no systematic changes can be attributed to long-term cultures. Suspicious losses of chromosomes 14, 18, and 19 or gain of chromosome 22 indicate that individual cases may have originated due to other mechanisms than the ones already hypothesized, i.e., different suppressor genes or amplification of genes other than the EGF-R-gene. None of the established cell lines had a genomic rearrangement of c-erbB 1, c-erbB 2 or of the p 53 gene.
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Affiliation(s)
- M Westphal
- Department of Neurological Surgery, University Hospital Eppendorf, Hamburg, Federal Republic of Germany
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20
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Valdueza JM, Hagel C, Westphal M, Hänsel M, Herrmann HD. Primary spinal malignant schwannoma: clinical, histological and cytogenetic findings. Neurosurg Rev 1991; 14:283-91. [PMID: 1791943 DOI: 10.1007/bf00383263] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [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: 12/28/2022]
Abstract
Of the 19 patients who presented between 1980 and 1990 to the Department of Neurosurgery, University of Hamburg, F. R. G. with malignant schwannoma, 5 patients suffered from primary malignant spinal schwannoma (mean age 44 years, only one patient with von Recklinghausen's disease). Here we report the clinical, histological, and cytogenetic features of the five cases with primary malignant spinal schwannoma and discuss the prognostic aspects of this rare tumor.
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Affiliation(s)
- J M Valdueza
- Department of Neurosurgery, University Hospital Hamburg-Eppendorf, Fed. Rep. of Germany
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21
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Westphal M, Hänsel M, Nausch H, Rohde E, Herrmann HD. Culture of human brain tumors on an extracellular matrix derived from bovine corneal endothelial cells and cultured human glioma cells. Methods Mol Biol 1990; 5:113-131. [PMID: 21374120 DOI: 10.1385/0-89603-150-0:113] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Cell culture has become an integral part of the daily routine of most oncology laboratories. It has enabled researchers to investigate a wide range of cellular parameters in a defined system in which the experimental conditions can be controlled and repeated. Although the manufacturers of tissue culture materials are continually improving their products, cell attachment and initial survival of primary cultures from tumor cells are still problems in many laboratories. Many different approaches have been taken to circumvent this problem, and coating of tissue culture dishes with attachment enhancers, such as polyamino acids (1), fibronectin (2), laminin (3), and collagen (4), has been found helpful. For a long time, it was known that endothelial cells produce a basement membrane, and this led to the use of bovine corneal basement membrane by Gospodarowicz et al. (5,6), in their research into the phenomenon of regeneration and nonregeneration of corneal endothelium in different species. The application of this bovine corneal extracellular matrix (bECM) has since been greatly expanded (5,6). bECM has found broad approval, and has been used for mammary carcinoma (7), urological tumors (8), and different kinds of pituitary adenomas (9,10) as well as CNS tumors (11).
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Affiliation(s)
- M Westphal
- University Hospital Eppendorf, Hamburg, Federal Republic of Germany
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22
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Westphal M, Hänsel M, Kunzmann R, Hölzel F, Herrmann HD. Spectrum of karyotypic aberrations in cultured human meningiomas. Cytogenet Cell Genet 1989; 52:45-9. [PMID: 2612214 DOI: 10.1159/000132837] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Twenty-two unselected cases of meningioma were initiated in tissue culture on an extracellular matrix derived from bovine corneal endothelial cells. The cultures were available for karyotypic analysis at passages 1 to 5, representing cultivation periods of up to two months. Histologically, the meningiomas were meningiotheliomatous (16 cases), fibrous (1 case), angiotheliomatous (1 case), microcystic (2 cases), and parenchymatous (2 cases). Two of the meningotheliomatous cases had histological signs of malignancy, another case showed increased signs of proliferation, and two cases were recurrences, one after a complete course of irradiation. In five cases no structural chromosome aberrations were found. Monosomy of chromosome 22 was found in six cases and was associated with other random aberrations. Clonal or random aberrations without monosomy 22 were present in 11 cases, including one case with trisomy 7 and another case with a stable translocation marker, t(4;7). In these latter two cases, EGF-receptor binding was not elevated, compared to other meningiomas. Our results illustrate that, in addition to the frequent involvement of chromosome 22, numerous other individual clonal karyotype aberrations exist in meningioma cell populations, reflecting the heterogeneity of biological and pathological findings.
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Affiliation(s)
- M Westphal
- Department of Neurological Surgery, University Hospital Eppendorf, Hamburg, FRG
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23
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Westphal M, Hänsel M, Nausch H, Rohde E, Köppen J, Fiola M, Hölzel F, Herrmann HD. Glioma biology in vitro: goals and concepts. Acta Neurochir Suppl (Wien) 1988; 43:107-13. [PMID: 3063073 DOI: 10.1007/978-3-7091-8978-8_23] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Gliomas are heterogeneous in their cellular composition, affecting therapeutic efforts such as surgical removal, radiotherapy, chemotherapy and immunotherapy. 106 gliomas were taken into culture in our laboratory and 12 cell lines could be established there from. Experiments were carried out in as many early cultures as possible and with the constant experimental system of the cell lines. To subdivide and possibly classify the heterogeneous group of gliomas the following approaches emerged: Immunostaining of cells for glial markers such as GFAP, A4, A2B5, Leu 7 as well as fibronectin will allow one to distinguish different groups of glial cultures. Performance of growth factor sensitivity tests allows the assessment of major aspects of growth control in cultured gliomas. Cytogenetic evaluation in early cultures and correlation with the expression of oncogenes may yield useful information on mechanisms of escape from normal growth control. One of our cell lines (NCE-G28) in which cells switch from GFAP to fibronectin expression and transiently express the x-hapten may serve as a model to study crucial aspects of cellular differentiation. Using different extracellular matrices for the initiation of cultures even from very benign lesions with low proliferative potential it is possible to include these into comparative studies with glioblastomas.
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Affiliation(s)
- M Westphal
- Department of Neurosurgery, University Hospital Eppendorf, Hamburg, Federal Republic of Germany
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24
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Abstract
A series of eight patients with multiple meningiomas is presented. Up to 14 meningiomas were diagnosed in one patient. The clinical and laboratory findings suggest that multiple meningiomas do not constitute a disease entity of their own featuring disease-specific clinical or laboratory findings. In our series we find a female predominance with seven female and one male patient. The histological findings were mixed, even within the individual cases. There are no consistent patterns of steroid receptor levels or chromosomal aberrations in the more recent cases in which these parameters could be investigated.
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Affiliation(s)
- M Neuss
- Department of Neurological Surgery, University Hospital Ependorf, Hamburg, Federal Republic of Germany
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25
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Westphal M, Hänsel M, Brunken M, König A, Köppen JA, Herrmann HD. Initiation of primary cell cultures from human intracranial tumors on extracellular matrix from bovine corneal endothelial cells. Exp Cell Biol 1987; 55:152-63. [PMID: 2444474 DOI: 10.1159/000163411] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Tissue specimens from 105 human gliomas and 57 human meningiomas were obtained at surgery, dissociated into single cells and small cell aggregates and then plated onto plain plastic tissue culture dishes and dishes which had been precoated with an extracellular matrix (ECM) derived from bovine corneal endothelium. In 80% of the glioma cases we observed a marked improvement in initial plating efficiency, colony formation and speed of attachment when cells were plated on ECM. In 5 cases cells attached only to the ECM-coated dishes but remained afloat in the untreated dishes. In addition it could be noted that over the first 2 days, those cells which had been initiated on ECM showed more signs of morphological differentiation, i.e., extension of cytoplasmic processes or formation of fiber networks between cell groups. If adaptation occurred and proliferation began in vitro, either immediately or after a several days' lag phase, both the ECM-cultured cells as well as those which slowly had adapted to culture on plastic could be passed on to untreated culture ware and perpetuated thereon. In the case of well-differentiated low-grade gliomas where no growth in culture took place, the cultures on ECM could at least be used for initial experiments in the primary cultures (P0). Meningiomas usually attached well to both, plastic or ECM. In 50% of our cases the plating efficiency was higher on ECM but after successful initial culture, the delay until the cells on plastic reached confluence in comparison with those on ECM was 1 or 2 days. Again there were 2 cases in which the cells would not plate on plastic. Here the cells which after 1 day were still afloat plated to more than 80% within the first 2 h after transfer to ECM. In all cases the cells from plastic and ECM cultures were indistinguishable and could be passed onto untreated dishes henceforth. In later culture stages ECM offers several advantages: It is easier to shift cells to serum-free defined culture conditions, the cells will grow at a faster rate on ECM when in higher passages and the maximal number of passages possible is higher on ECM.
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Affiliation(s)
- M Westphal
- Neurochirurgische Abteilung, Universitätskrankenhaus Eppendorf, Hamburg, FRG
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26
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Hölzel F, Albrecht M, Simon WE, Hänsel M, Metz R, Schweizer J, Dietel M. Effectiveness of antineoplastic drugs on the proliferation of human mammary and ovarian carcinoma cells in monolayer culture. J Cancer Res Clin Oncol 1985; 109:217-26. [PMID: 4008518 DOI: 10.1007/bf00390361] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Procedures for the in vitro determination of the drug-induced inhibition of mammary and ovarian carcinoma cell growth were established. In monolayer cultures derived from advanced tumors, separation of epithelial carcinoma cells from concomitant cells of fibroblast-like or mesothelial appearance was achieved by differential trypsinization. The carcinoma cell character of the stock cultures was verified by chromosome analyses showing a high degree of aneuploidy for the epitheloid cell lines and euploidy for cells of apparently mesenchymal origin. When cultured carcinoma cells were injected in nu/nu mice, the tissue and cell cultures obtained from the heterotransplantation tumors closely resembled the original tumors and cell cultures in morphology, karyotype, and expression of tumor markers. The action of carcinostatic drugs in the logarithmic phase of the carcinoma cell proliferation was tested by kinetics experiments in multiple experimental cultures. In cell proliferation assays based on cell counts the 50% inhibition dose (ID50) of the drug effects was determined from the dose-response curves. Comparison of the ID50s revealed highly differential effectiveness of the drugs examined. The inhibitory effects were reproducible, rendering the procedures used suitable for testing the chemosensitivity of newly explanted gynecological carcinoma cells by proliferation assays.
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Simon WE, Hänsel M, Dietel M, Matthiesen L, Albrecht M, Hölzel F. Alteration of steroid hormone sensitivity during the cultivation of human mammary carcinoma cells. In Vitro 1984; 20:157-66. [PMID: 6325325 DOI: 10.1007/bf02618184] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
During early cultivation steps of the newly derived and karyotyped human mammary carcinoma line EFM-19, the cells developed faster growth rates and became increasingly less responsive to the presence of serum in the culture medium. No drastic alterations of the morphology and of the karyotype were observed, and carcinoembryogenic antigen remained expressed during the course of the cultivation. In experimental incubations at various time intervals after the explantation, the cell proliferation was analyzed for dose-dependent effects of estradiol, cortisol, progesterone, and testosterone. After 16 wk of cultivation of the stock culture in the presence of estradiol, the cells had acquired a distinct sensitivity to estradiol resulting in permanent growth enhancement. The withdrawal of cortisol from the medium of the stock culture subsequently provoked the loss of the initially noted stimulation of the proliferation by cortisol. The stimulatory effect of progesterone on the proliferation was reversed to inhibition when the stock culture was deprived of cortisol in the growth medium. The results indicate that the choice of steroid hormones in the stock culture medium was determining the quality of the cellular growth responses.
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28
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Simon WE, Albrecht M, Hänsel M, Dietel M, Hölzel F. Cell lines derived from human ovarian carcinomas: growth stimulation by gonadotropic and steroid hormones. J Natl Cancer Inst 1983; 70:839-45. [PMID: 6405069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Carcinoma cell lines established from 5 patients with advanced tumors of ovarian location were characterized by karyotypes and growth properties in serum-free medium. In early passages of the cultivation, the growth of cell lines derived from tumors of fairly differentiated histology was stimulated by human follicle-stimulating hormone or human chorionic gonadotropin-human luteinizing hormone. Cells obtained from poorly differentiated carcinomas were unresponsive to gonadotropins. The proliferation of cell lines derived from a malignant clear cell carcinoma and from the ovarian metastasis of an advanced mammary carcinoma was enhanced by cortisol. The results imply that hormonal factors in concentrations physiologically occurring in human serum may support the in vivo growth of ovarian tumors.
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