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Koul P, Collins MK, Bielinski TM, Goren O, Weiner GM, Griessenauer CJ, Noto A, Schirmer C, Hendrix P. Comparative Analysis of Mechanical Thrombectomy Outcomes of Middle Cerebral Artery M1, M2 Superior, and M2 Inferior Occlusion Strokes. World Neurosurg 2024; 189:e878-e887. [PMID: 38986952 DOI: 10.1016/j.wneu.2024.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Accepted: 07/02/2024] [Indexed: 07/12/2024]
Abstract
BACKGROUND The M1 middle cerebral artery (MCA) commonly bifurcates into M2 superior and M2 inferior segments. However, MCA anatomy is highly variable rendering classification for mechanical thrombectomy trials difficult. This study explored safety and effectiveness of M2 MCA stroke thrombectomy stratified by M2 MCA anatomy. METHODS Cases of large vessel occlusion strokes treated by mechanical thrombectomy between February 2016 and August 2022 were reviewed (N = 784). M1 (n = 431) and M2 (n = 118) MCA occlusions were assessed. Among M2 MCA occlusions, only prototypical MCA bifurcation anatomy cases were included (n = 99). Dominance was assessed based on angiography. Procedural and outcome data were compared between M1, M2 superior, and M2 inferior MCA occlusions. RESULTS Baseline demographics and periprocedural criteria of M2 superior (n = 56) and M2 inferior (n = 43) occlusion mechanical thrombectomies were comparable. The occluded branch was dominant in 41/43 (95.3%) M2 inferior cases, but in only 37/56 (66.1%) M2 superior cases (P < 0.001). The 90-day favorable functional outcome (modified Rankin Scale score 0-2) and mortality (modified Rankin Scale score 6) rates were 60.0% and 8.9% in M2 superior, 42.9% and 32.6% in M2 inferior, and 44.1% and 26.0% in M1 (n = 431) cases. Compared with M2 superior cases, in M2 inferior cases, favorable outcome rates were lower (P = 0.094) and mortality rates were higher (P = 0.003) and resembled M1 rates (P = 0.750 and P = 0.355, respectively). CONCLUSIONS In the setting of prototypical MCA bifurcation anatomy, thrombectomy of dominant M2 inferior occlusions had outcome rates similar to M1 occlusions. In contrast, M2 superior occlusions had significantly lower mortality rates and a trend toward better favorable functional outcome rates.
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Affiliation(s)
- Prateeka Koul
- Department of Neurosurgery, Geisinger, Danville, Pennsylvania, USA
| | - Malie K Collins
- Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania, USA
| | - Tyler M Bielinski
- Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania, USA
| | - Oded Goren
- Department of Neurosurgery, Geisinger, Danville, Pennsylvania, USA
| | - Gregory M Weiner
- Department of Neurosurgery, Geisinger, Wilkes-Barre, Pennsylvania, USA
| | - Christoph J Griessenauer
- Department of Neurosurgery, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria
| | - Anthony Noto
- Department of Neurology, Geisinger, Danville, Pennsylvania, USA
| | - Clemens Schirmer
- Department of Neurosurgery, Geisinger, Wilkes-Barre, Pennsylvania, USA
| | - Philipp Hendrix
- Department of Neurosurgery, Geisinger, Danville, Pennsylvania, USA.
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2
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Kühn AL, Puri AS, Salim HA, Musmar B, Ghozy S, Siegler J, Shaikh H, Khalife J, Abdalkader M, Klein P, Nguyen TN, Heit JJ, Regenhardt RW, Diestro JDB, Cancelliere NM, Sweid A, Naamani KE, Hasan Z, Gopinathan A, Amllay A, Meyer L, Dusart A, Bellante F, Forestier G, Rouchaud A, Saleme S, Mounayer C, Fiehler J, Dyzmann C, Kan PT, Singh J, Colasurdo M, Marnat G, Berge J, Barreau X, Sibon I, Nedelcu S, Henninger N, Marotta TR, Stapleton CJ, Rabinov JD, Ota T, Dofuku S, Yeo LL, Tan BYQ, Martinez-Gutierrez JC, Salazar-Marioni S, Sheth S, Renieri L, Capirossi C, Mowla A, Tjoumakaris SI, Jabbour P, Khandelwal P, Biswas A, Clarençon F, Elhorany M, Premat K, Valente I, Pedicelli A, Filipe JP, Varela R, Quintero-Consuegra M, Gonzalez NR, Möhlenbruch MA, Jesser J, Costalat V, Ter Schiphorst A, Yedavalli V, Harker P, Chervak L, Aziz Y, Gory B, Stracke CP, Hecker C, Killer-Oberpfalzer M, Griessenauer CJ, Thomas A, Hsieh CY, Liebeskind DS, Radu RA, Alexandre AM, Fahed R, Tancredi I, Faizy TD, Weyland C, Lubicz B, Patel AB, Pereira VM, Guenego A, Dmytriw AA. Multicenter evaluation of mechanical thrombectomy for distal medium vessel occlusions with National Institute of Health Stroke Scale Scores ≥ 6 and ≤ 6. J Neurol 2024; 271:5853-5863. [PMID: 38967650 DOI: 10.1007/s00415-024-12537-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/06/2024]
Abstract
BACKGROUND While mechanical thrombectomy is considered standard of care for large vessel occlusions, scientific evidence to support treatment for distal and medium vessel occlusions remains scarce. PURPOSE To evaluate feasibility, safety, and outcomes in patients with low National Institute of Health Stroke Scale scores undergoing mechanical thrombectomy for treatment of distal medium vessel occlusions. MATERIALS AND METHODS Retrospective data review and analysis of prospectively maintained databases at 41 academic centers in North America, Asia, and Europe between January 2017 and January 2022. Characteristics and outcomes were compared between groups with low stroke scale score (≤ 6) versus and higher stroke scale scores (> 6). Propensity score matching using the optimal pair matching method and 1:1 ratio was performed. RESULTS Data were collected on a total of 1068 patients. After propensity score matching, there were a total of 676 patients included in the final analysis, with 338 patients in each group. High successful reperfusion rates were seen in both groups, 90.2% in ≤ 6 and 88.7% in the > 6 stroke scale groups. The frequency of excellent and good functional outcome was seen more common in low versus higher stroke scale score patients (64.5% and 81.1% versus 39.3% and 58.6%, respectively). The 90-day mortality rate observed in the ≤ 6 stroke scale group was 5.3% versus 13.3% in the > 6 stroke scale group. CONCLUSION Mechanical thrombectomy in distal and medium vessel occlusions, specifically in patients with low stroke scale scores is feasible, though it may not necessarily improve outcomes over IVT.
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Affiliation(s)
- Anna Luisa Kühn
- Division of Neurointerventional Radiology, Department of Radiology, University of Massachusetts Medical Center, Worcester, MA, USA
| | - Ajit S Puri
- Division of Neurointerventional Radiology, Department of Radiology, University of Massachusetts Medical Center, Worcester, MA, USA
| | - Hamza Adel Salim
- Department of Neurosurgery and Interventional Neuroradiology, Louisiana State University, Los Angeles, USA.
- Brigham and Women's Hospital, Neuroendovascular Program, Massachusetts General Hospital, Harvard University, Boston, MA, USA.
- Department of Radiology, Division of Neuroradiology, Johns Hopkins Medical Center, Baltimore, MD, USA.
| | - Basel Musmar
- Department of Neurosurgery and Interventional Neuroradiology, Louisiana State University, Los Angeles, USA
| | - Sherief Ghozy
- Departments of Neurological Surgery & Radiology, Mayo Clinic, Rochester, MN, USA
| | - James Siegler
- Cooper Neurological Institute, Cooper University Hospital, Cooper Medical School of Rowen University, Camden, NJ, USA
| | - Hamza Shaikh
- Cooper Neurological Institute, Cooper University Hospital, Cooper Medical School of Rowen University, Camden, NJ, USA
| | - Jane Khalife
- Cooper Neurological Institute, Cooper University Hospital, Cooper Medical School of Rowen University, Camden, NJ, USA
| | - Mohamad Abdalkader
- Departments of Radiology & Neurology, Boston Medical Center, Boston, MA, USA
| | - Piers Klein
- Departments of Radiology & Neurology, Boston Medical Center, Boston, MA, USA
| | - Thanh N Nguyen
- Departments of Radiology & Neurology, Boston Medical Center, Boston, MA, USA
| | - Jeremy J Heit
- Department of Interventional Neuroradiology, Stanford Medical Center, Palo Alto, CA, USA
| | - Robert W Regenhardt
- Brigham and Women's Hospital, Neuroendovascular Program, Massachusetts General Hospital, Harvard University, Boston, MA, USA
| | - Jose Danilo Bengzon Diestro
- Neurovascular Centre, Departments of Medical Imaging and Neurosurgery, St. Michael's Hospital, Toronto, ON, Canada
| | - Nicole M Cancelliere
- Neurovascular Centre, Departments of Medical Imaging and Neurosurgery, St. Michael's Hospital, Toronto, ON, Canada
| | - Ahmad Sweid
- Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Kareem El Naamani
- Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Zuha Hasan
- Neurovascular Centre, Departments of Medical Imaging and Neurosurgery, St. Michael's Hospital, Toronto, ON, Canada
| | - Anil Gopinathan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Abdelaziz Amllay
- Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Lukas Meyer
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anne Dusart
- Department of Neurology, Hôpital Civil Marie Curie, Charleroi, Belgium
| | - Flavio Bellante
- Department of Neurology, Hôpital Civil Marie Curie, Charleroi, Belgium
| | - Géraud Forestier
- Neuroradiology Department, University Hospital of Limoges, Dupuytren, Université de Limoges, XLIM CNRS, UMR 7252, Limoges, France
| | - Aymeric Rouchaud
- Neuroradiology Department, University Hospital of Limoges, Dupuytren, Université de Limoges, XLIM CNRS, UMR 7252, Limoges, France
| | - Suzana Saleme
- Neuroradiology Department, University Hospital of Limoges, Dupuytren, Université de Limoges, XLIM CNRS, UMR 7252, Limoges, France
| | - Charbel Mounayer
- Neuroradiology Department, University Hospital of Limoges, Dupuytren, Université de Limoges, XLIM CNRS, UMR 7252, Limoges, France
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Dyzmann
- Neuroradiology Department, Sana Kliniken, Lübeck GmbH, Lübeck, Germany
| | - Peter T Kan
- Department of Neurosurgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Jasmeet Singh
- Brigham and Women's Hospital, Neuroendovascular Program, Massachusetts General Hospital, Harvard University, Boston, MA, USA
| | - Marco Colasurdo
- Department of Neurosurgery, University of Texas Medical Branch, Galveston, TX, USA
| | - Gaultier Marnat
- Interventional Neuroradiology Department, Bordeaux University Hospital, Bordeaux, France
| | - Jérôme Berge
- Interventional Neuroradiology Department, Bordeaux University Hospital, Bordeaux, France
| | - Xavier Barreau
- Interventional Neuroradiology Department, Bordeaux University Hospital, Bordeaux, France
| | - Igor Sibon
- Neurology Department, Bordeaux University Hospital, Bordeaux, France
| | - Simona Nedelcu
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Nils Henninger
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Thomas R Marotta
- Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Christopher J Stapleton
- Department of Neurosurgery and Interventional Neuroradiology, Louisiana State University, Los Angeles, USA
| | - James D Rabinov
- Department of Neurosurgery and Interventional Neuroradiology, Louisiana State University, Los Angeles, USA
| | - Takahiro Ota
- Department of Neurosurgery, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Shogo Dofuku
- Department of Neurosurgery, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Leonard Ll Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Benjamin Y Q Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | | | | | - Sunil Sheth
- Interventistica Neurovascolare, Ospedale Careggi Di Firenze, Florence, Italy
| | - Leonardo Renieri
- Interventistica Neurovascolare, Ospedale Careggi Di Firenze, Florence, Italy
| | - Carolina Capirossi
- Interventistica Neurovascolare, Ospedale Careggi Di Firenze, Florence, Italy
| | - Ashkan Mowla
- Division of Stroke and Endovascular Neurosurgery, Department of Neurological Surgery, Keck School of Medicine, University of Southern California (USC), 1200 North State St, Suite 3300, Los Angeles, CA, USA
| | | | - Pascal Jabbour
- Department of Neurosurgery, Thomas Jefferson University, Philadelphia, PA, USA
| | - Priyank Khandelwal
- Department of Endovascular Neurosurgery and Neuroradiology NJMS, Newark, NJ, USA
| | - Arundhati Biswas
- Department of Neurosurgery, Westchester Medical Center at New York Medical College, Valhalla, NY, USA
| | - Frédéric Clarençon
- Department of Neuroradiology, GRC BioFast, Sorbonne University. Paris VI, Pitié-Salpêtrière Hospital, Paris, France
| | - Mahmoud Elhorany
- Department of Neuroradiology, GRC BioFast, Sorbonne University. Paris VI, Pitié-Salpêtrière Hospital, Paris, France
| | - Kevin Premat
- Department of Neuroradiology, GRC BioFast, Sorbonne University. Paris VI, Pitié-Salpêtrière Hospital, Paris, France
| | - Iacopo Valente
- UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
| | - Alessandro Pedicelli
- UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
| | - João Pedro Filipe
- Department of Diagnostic and Interventional Neuroradiology, Centro Hospitalar Universitário Do Porto, Porto, Portugal
| | - Ricardo Varela
- Department of Neurology, Centro Hospitalar Universitário Do Porto, Porto, Portugal
| | | | - Nestor R Gonzalez
- Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Markus A Möhlenbruch
- Sektion Vaskuläre Und Interventionelle Neuroradiologie, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Jessica Jesser
- Sektion Vaskuläre Und Interventionelle Neuroradiologie, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Vincent Costalat
- Department of Neuroradiology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Adrien Ter Schiphorst
- Department of Neurology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Vivek Yedavalli
- Department of Radiology, Division of Neuroradiology, Johns Hopkins Medical Center, Baltimore, MD, USA
| | - Pablo Harker
- Department of Neurology, University of Cincinnati Medical Center, Cincinnati, OH, USA
| | - Lina Chervak
- Department of Neurology and Radiology, University of Cincinnati, Cincinnati, OH, USA
| | - Yasmin Aziz
- Department of Neurology, University of Cincinnati Medical Center, Cincinnati, OH, USA
| | - Benjamin Gory
- Department of Interventional Neuroradiology, Nancy University Hospital, Nancy, France
| | - Christian Paul Stracke
- Department of Radiology, Interventional Neuroradiology Section, University Medical Center, Münster, Germany
| | - Constantin Hecker
- Departments of Neurology and Neurosurgery, Christian Doppler Clinic, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Monika Killer-Oberpfalzer
- Departments of Neurology and Neurosurgery, Christian Doppler Clinic, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Christoph J Griessenauer
- Departments of Neurology and Neurosurgery, Christian Doppler Clinic, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Ajith Thomas
- Cooper Neurological Institute, Cooper University Hospital, Cooper Medical School of Rowen University, Camden, NJ, USA
| | | | - David S Liebeskind
- UCLA Stroke Center and Department of Neurology Department, UCLA, Los Angeles, CA, USA
| | - Răzvan Alexandru Radu
- Department of Neuroradiology, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France
| | - Andrea M Alexandre
- UOSA Neuroradiologia Interventistica, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
| | - Robert Fahed
- Department of Medicine, Division of Neurology, The Ottawa Hospital, Ottawa Hospital Research Institute and University of Ottawa, Ottawa, ON, Canada
| | - Illario Tancredi
- Department of Medicine, Division of Neurology, The Ottawa Hospital, Ottawa Hospital Research Institute and University of Ottawa, Ottawa, ON, Canada
| | - Tobias D Faizy
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Charlotte Weyland
- Sektion Vaskuläre Und Interventionelle Neuroradiologie, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Boris Lubicz
- Department of Diagnostic and Interventional Neuroradiology, Erasme University Hospital, Brussels, Belgium
| | - Aman B Patel
- Brigham and Women's Hospital, Neuroendovascular Program, Massachusetts General Hospital, Harvard University, Boston, MA, USA
| | - Vitor Mendes Pereira
- Neurovascular Centre, Departments of Medical Imaging and Neurosurgery, St. Michael's Hospital, Toronto, ON, Canada
| | - Adrien Guenego
- Department of Diagnostic and Interventional Neuroradiology, Erasme University Hospital, Brussels, Belgium
| | - Adam A Dmytriw
- Brigham and Women's Hospital, Neuroendovascular Program, Massachusetts General Hospital, Harvard University, Boston, MA, USA.
- Division of Diagnostic and Therapeutic Neuroradiology, Department of Radiology, St. Michael's Hospital, University of Toronto, Toronto, ON, Canada.
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3
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Gomez CR, French BR, Gomez FE, Qureshi AI. Neuroendovascular Rescue 2025: Trends in Stroke Endovascular Therapy. Neurol Clin 2024; 42:717-738. [PMID: 38937038 DOI: 10.1016/j.ncl.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Neuroendovascular rescue of patients with acute ischemic stroke caused by a large arterial occlusion has evolved throughout the first quarter of the present century, and continues to do so. Starting with the intra-arterial instillation of thrombolytic agents via microcatheters to dissolve occluding thromboembolic material, the current status is one that includes a variety of different techniques such as direct aspiration of thrombus, removal by stent retriever, adjuvant techniques such as balloon angioplasty, stenting, and tactical intra-arterial instillation of thrombolytic agents in smaller branches to treat no-reflow phenomenon. The results have been consistently shown to benefit these patients, irrespective of whether they had already received intravenous tissue-type plasminogen activator or not. Improved imaging methods of patient selection and tactically optimized periprocedural care measures complement this dimension of the practice of neurointervention.
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Affiliation(s)
- Camilo R Gomez
- University of Missouri Columbia School of Medicine, Columbia, MO, USA.
| | - Brandi R French
- University of Missouri Columbia School of Medicine, Columbia, MO, USA
| | - Francisco E Gomez
- University of Missouri Columbia School of Medicine, Columbia, MO, USA
| | - Adnan I Qureshi
- University of Missouri Columbia School of Medicine, Columbia, MO, USA
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4
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Nezzo M, Cecchi G, Nicita F, Mascolo AP, Morosetti D, Da Ros V, Argirò R, Diomedi M, Floris R. Aspiration thrombectomy of M2 segment in acute ischemic stroke: The clinical reality in a neurovascular reference center. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2024; 59:55-59. [PMID: 37633819 DOI: 10.1016/j.carrev.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 08/04/2023] [Indexed: 08/28/2023]
Abstract
OBJECTIVE Our study aimed to evaluate safety, efficacy and clinical outcomes in patients with acute ischemic stroke with occlusion of M2 segment treated with thromboaspiration. MATERIALS AND METHODS A retrospective study was conducted in patients with ischemic stroke of M2 segment undergoing endovascular thromboaspiration. The time period analyzed was from October 2015 until February 2021. Thromboaspiration was performed with AXS Catalyst 5 (Stryker) or AXS Catalyst 6 (Stryker) catheters. The following parameters were assessed: risk factors for ischemic stroke, National Institutes of Health Stroke Scale (entry and discharge), pre-procedural fibrinolysis, pre-procedural and 24-h Alberta Stroke Program Early CT Score, recanalization time, number of passages for recanalization, Thrombolysis in cerebral infarction scale score, periprocedural complications, Modified Rankin Scale score at 90 days from procedure and mortality. RESULTS 90 patients were included in the study. The mean age was 75 ± 11.1 with National Institutes of Health Stroke Scale at entry 13 ± 5 and 8 ± 4 at discharge. Pre-procedural fibrinolysis were performed in 40 patients. Pre-procedural Alberta Stroke Program Early CT Score were 8.8 ± 1.3 and 6.9 ± 2.4 after 24 h from the procedure. Time of recanalization from onset of symptoms was 300 ± 82 min. Number of passages for recanalization were 1.8 ± 1.1. Thrombolysis in cerebral infarction scale score ≥ 2b were obtained in 90 % of procedures. After 90 days 33 % of patient obtained an Modified Rankin Scale between 0 and 1 (between 0 and 2 was 40 %). We didn't detect any complication in 64 % of cases (subarachnoid haemorrhage in 2 %, HI1 and HI 2 in 15 %, PH1 in 9 % of patients, PH2 in 6 % of patients). CONCLUSIONS This paper confirms the usefulness and safety of thrombospiration in patients with ischemic stroke in the M2 segment with low intra-operative risks, high technical success and positive impact on the outcome of the patients.
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Affiliation(s)
- Marco Nezzo
- Interventional Radiology Unit, Department of Biomedicine and Prevention, University Hospital of Rome "Tor Vergata", Viale Oxford 81, 00133 Rome, Italy.
| | - Gianluca Cecchi
- Interventional Radiology Unit, Department of Biomedicine and Prevention, University Hospital of Rome "Tor Vergata", Viale Oxford 81, 00133 Rome, Italy.
| | - Francesco Nicita
- Interventional Radiology Unit, Department of Biomedicine and Prevention, University Hospital of Rome "Tor Vergata", Viale Oxford 81, 00133 Rome, Italy.
| | - Alfredo Paolo Mascolo
- Stroke Center, Department of Systems Medicine, University Hospital of Rome "Tor Vergata", Viale Oxford 81, 00133 Rome, Italy.
| | - Daniele Morosetti
- Interventional Radiology Unit, Department of Biomedicine and Prevention, University Hospital of Rome "Tor Vergata", Viale Oxford 81, 00133 Rome, Italy.
| | - Valerio Da Ros
- Interventional Radiology Unit, Department of Biomedicine and Prevention, University Hospital of Rome "Tor Vergata", Viale Oxford 81, 00133 Rome, Italy.
| | - Renato Argirò
- Interventional Radiology Unit, Department of Biomedicine and Prevention, University Hospital of Rome "Tor Vergata", Viale Oxford 81, 00133 Rome, Italy.
| | - Marina Diomedi
- Stroke Center, Department of Systems Medicine, University Hospital of Rome "Tor Vergata", Viale Oxford 81, 00133 Rome, Italy.
| | - Roberto Floris
- Diagnostic Imaging Unit, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Viale Oxford 81, 00133 Rome, Italy.
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5
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Rodriguez-Calienes A, Vivanco-Suarez J, Sequeiros JM, Galecio-Castillo M, Zevallos CB, Farooqui M, Ortega-Gutierrez S. Mechanical thrombectomy for the treatment of primary and secondary distal medium-vessel occlusion stroke: systematic review and meta-analysis. J Neurointerv Surg 2023; 15:e460-e467. [PMID: 36797050 DOI: 10.1136/jnis-2022-019975] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/05/2023] [Indexed: 02/18/2023]
Abstract
BACKGROUND There is limited evidence on the indication and role of mechanical thrombectomy (MT) in patients with distal medium-vessel occlusions (DMVOs). The aim of this systematic review and meta-analysis was to evaluate all the evidence available on the efficacy and safety of MT techniques (stent retriever, aspiration) in primary and secondary DMVOs. METHODS Five databases were searched from inception to January 2023 for studies of MT in primary and secondary DMVOs. Outcomes of interest included favorable functional outcome (90-day modified Rankin scale (mRS) 0-2), successful reperfusion (modified Thrombolysis in Cerebral Infarction (mTICI) 2b-3), symptomatic intracerebral hemorrhage (sICH), and 90-day mortality. Prespecified subgroup meta-analyses according to the specific MT technique and to the vascular territory (distal M2-M5, A2-A5, P2-P5) were also performed. RESULTS A total of 29 studies with 1262 patients were included. For primary DMVOs (n=971 patients), pooled rates of successful reperfusion, favorable outcome, 90-day mortality and sICH were 84% (95% confidence interval (CI) 76 to 90%), 64% (95% CI 54 to 72%), 12% (95% CI 8 to 18%), and 6% (95% CI 4 to 10%), respectively. For secondary DMVOs (n=291 patients), pooled rates of successful reperfusion, favorable outcome, 90-day mortality and sICH were 82% (95% CI 73 to 88%), 54% (95% CI 39 to 69%), 11% (95% CI 5 to 20%), and 3% (95% CI 1 to 9%), respectively. Subgroup analyses by MT technique and by vascular territory showed no differences in primary and secondary DMVOs. CONCLUSION Our findings suggest that MT using aspiration or stent retriever techniques appears to be effective and safe in primary and secondary DMVOs. However, given the level of evidence of our results, further confirmation in well-designed randomized controlled trials is needed.
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Affiliation(s)
- Aaron Rodriguez-Calienes
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
- Neuroscience, Clinical Effectiveness and Public Health Research Group, Universidad Cientifica del Sur, Lima, Peru
| | - Juan Vivanco-Suarez
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Joel M Sequeiros
- Department of Neurology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | | | - Cynthia B Zevallos
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Mudassir Farooqui
- Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Santiago Ortega-Gutierrez
- Department of Neuroloy, Neurosurgery and Radiology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
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6
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Toh KZX, Koh MY, Loh EDW, Kwok GYR, Teo YH, Teo YN, Goh CXY, Syn NLX, Ho AFW, Sia CH, Brouwer PA, Andersson T, Meyer L, Fiehler J, Bhogal P, Sharma VK, Tan BYQ, Yeo LLL. Distal medium vessel occlusions in acute ischaemic stroke - Stent retriever versus direct aspiration: A systematic review and meta-analysis. Eur Stroke J 2023; 8:434-447. [PMID: 37231692 PMCID: PMC10334182 DOI: 10.1177/23969873231151262] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/28/2022] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Acute ischaemic stroke due to distal medium vessel occlusion (AIS-DMVO) causes significant morbidity. Endovascular thrombectomy advancement has made treating AIS-DMVO with stent retrievers (SR) and aspiration catheters (AC) possible, however the optimal technique remains unknown. We performed a systematic review and meta-analysis to investigate the efficacy and safety of SR use compared to purely AC use in patients with AIS-DMVO. METHODS We systematically searched PubMed, Cochrane Library and EMBASE, from inception to 2nd September 2022, for studies comparing SR or primary combined (SR/PC) against AC in AIS-DMVO. We adopted the Distal Thrombectomy Summit Group's definition of DMVO. Efficacy outcomes were functional independence (modified Rankin Scale (mRS) 0-2 at 90 days), first pass effect (modified Thrombolysis in Cerebral Infarction scale (mTICI) 2c-3 or expanded Thrombolysis in Cerebral Infarction scale (eTICI) 2c-3 at first pass), successful final recanalisation (mTICI or eTICI 2b-3), and excellent final recanalisation (mTICI or eTICI 2c-3). Safety outcomes were symptomatic intracranial haemorrhage (sICH) and 90-day mortality. RESULTS 12 cohort studies and 1 randomised-controlled trial were included, involving 1881 patients with 1274 receiving SR/PC and 607 receiving AC only. SR/PC achieved higher odds of functional independence (odds ratio (OR) 1.33, 95% confidence interval (CI) 1.06-1.67) and lower odds of mortality (OR 0.69, 95% CI 0.50-0.94) than AC. Odds of successful/excellent recanalisation and sICH were similar between both groups. Stratified to compare only SR and only AC, the use of only SR, achieved significantly higher odds of successful recanalisation as compared to only AC (OR 1.80, 95% CI 1.17-2.78). CONCLUSION There is potential for efficacy and safety benefits in SR/PC use as compared to AC only in AIS-DMVO. Further trials are necessary to validate the efficacy and safety of SR use in AIS-DMVO.
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Affiliation(s)
- Keith Zhi Xian Toh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Ming Yi Koh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Enver De Wei Loh
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Gabriel Yi Ren Kwok
- Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Yao Hao Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yao Neng Teo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Claire Xin Yi Goh
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicholas Li Xun Syn
- Department of Surgery, University Surgical Cluster, National University Health System, Singapore
| | - Andrew Fu Wah Ho
- SingHealth Duke-NUS Emergency Medicine Academic Clinical Program, Singapore
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore
| | - Ching-Hui Sia
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Cardiology, National University Heart Centre Singapore, Singapore
| | - Patrick A Brouwer
- Cerenovus (Johnson & Johnson), Galway Neuro Technology Centre, Galway, Ireland
| | | | - Lukas Meyer
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Vijay K Sharma
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Benjamin YQ Tan
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
| | - Leonard L L Yeo
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Division of Neurology, Department of Medicine, National University Hospital, Singapore
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7
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Geisbush TR, Snyder SJ, Heit JJ. Neuroimaging in Patient Selection for Thrombectomy, From the AJR Special Series on Emergency Radiology. AJR Am J Roentgenol 2023; 220:630-640. [PMID: 36448911 DOI: 10.2214/ajr.22.28608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Endovascular thrombectomy has become the standard-of-care treatment for carefully selected patients with acute ischemic stroke due to a large-vessel occlusion of the anterior circulation. Neuroimaging plays a vital role in determining patient eligibility for thrombectomy, both in the early (0-6 hours from symptom onset) and late (> 6 to 24 hours from symptom onset) time windows. Various neuroimaging algorithms are used to determine thrombectomy eligibility, and each algorithm must be optimized for institutional workflow. In this review, we describe common imaging modalities and recommended algorithms for the evaluation of patients for endovascular thrombectomy. We also discuss emerging patient populations who might qualify for thrombectomy in the coming years.
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Affiliation(s)
- Thomas R Geisbush
- Department of Radiology, Stanford University School of Medicine, 453 Quarry Rd, Palo Alto, CA 94305
| | - Sarah J Snyder
- Department of Radiology, Stanford University School of Medicine, 453 Quarry Rd, Palo Alto, CA 94305
| | - Jeremy J Heit
- Department of Radiology, Stanford University School of Medicine, 453 Quarry Rd, Palo Alto, CA 94305
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8
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Delgado Acosta F, Jiménez Gómez E, Bravo Rey I, Romero Saucedo V, Valverde Moyano R, Oteros Fernández R. Comparing data from thrombectomy in m2 occlusion and proximal middle cerebral artery. Interv Neuroradiol 2023; 29:102-107. [PMID: 35043725 PMCID: PMC9893234 DOI: 10.1177/15910199221074881] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/26/2021] [Accepted: 01/04/2022] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Mechanical thrombectomy for large vessel occlusion in the anterior circulation has been shown to be beneficial. The question of whether this technique is safe and effective in the distal vasculature remains unanswered. We wanted to compare outcome data from mechanical thrombectomy of M2 branches of the middle cerebral artery (MCA) with those of the M1 segment, and better understand the clinical predictors of these M2 occlusions. METHODS A retrospective analysis was performed of data prospectively collected between January 2017 and July 2021 from patients with acute ischemic stroke undergoing mechanical thrombectomy of isolated M1 or M2 branches of the MCA. RESULTS 350 patients were identified, 287 with M1 and 63 with M2 occlusions. Mean age was 70.71 ± 12.55 and 75.21 ± 10.21 years, respectively (p = 0.0083). Baseline Alberta Stroke Program Computed Tomography (ASPECT) score was worse in the M1 cohort (7.68 ± 1.73 vs. 8.32 ± 1.54; p = 0.0079), while there was no significant difference in National Institutes of Health Stroke Scale (NIHSS) scores. No statistical disparity existed in mean procedure duration for each cohort; fewer thrombectomy attempts were required in the M2 cohort (2.01 vs. 1.63; p = 0.0478). There was no statistical difference in total time to recanalization (559.19 vs. 629.97, p = 0.2506). Similar rates of successful reperfusion were observed (Thrombolysis in Ischaemic Stroke score [TICI] ≥ 2b 80.84% vs. 71.43% p = 0.1221). Good outcome (modified Rankin scale ≤ 2) was 56.10 in M1 occlusions and 63.49% on M2 groups. Intracranial haemorrhage rates were similar. CONCLUSIONS M2 thrombectomy is safe and a significant proportion of patients achieve a good clinical outcome. Advanced age, atrial fibrillation and previous treatment with anticoagulants were predictors for poor outcome. Good outcome was achieved when effective recanalization was obtained.
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9
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Zhai G, Song J, Yu N, Guo C, Liu S, Yue C, Yang D, Xie D, Liu X, Yu S, Lei L. Predictors of Mechanical Thrombectomy for Anterior Circulation Emergent Large-Vessel Occlusion in the Older Adults. Clin Appl Thromb Hemost 2023; 29:10760296231184219. [PMID: 37386776 DOI: 10.1177/10760296231184219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023] Open
Abstract
Few studies have reported the clinical outcomes of older adult patients with acute anterior circulation large-vessel occlusion (LVO) who underwent mechanical thrombectomy (MT). Therefore, we investigated the safety, functional outcomes, and predictors of MT for anterior circulation LVO in older adults. We enrolled patients with acute anterior circulation LVO from May 2018 to October 2021 in this retrospective study. Patients were divided into older (≥80 years) and young (<80 years) groups. Multivariable logistic regression analyses determined the safety, functional outcomes, and predictors of MT for anterior circulation LVO. We divided 1182 patients with acute ischemic stroke into young (18-79 years; 1028 patients) and older (≥80 years; 154 patients) groups. Compared with the young group, the older group had more unfavorable functional outcomes and increased mortality (P = .003). In the older adult patients, lower initial NIHSS score and higher ASPECTS were correlated with good outcomes. On the contrary, higher initial NIHSS score and lower ASPECTS were related to increased mortality. No difference was detected in symptomatic intracranial hemorrhage within 48 h between two groups. Increasing age was associated with lower rates of favorable functional outcomes and higher mortality rates. The lower initial NIHSS score combined with the higher ASPECTS may predict functional outcomes post-thrombectomy in older adults.
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Affiliation(s)
- Guojie Zhai
- Department of Neurology, Suzhou Ninth People's Hospital, Suzhou Ninth Hospital Affiliated to Soochow University, Suzhou, China
| | - Jiaxing Song
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Nizhen Yu
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Changwei Guo
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Shuai Liu
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Chengsong Yue
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Dahong Yang
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Dongjing Xie
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xiang Liu
- Department of Neurology, Xinqiao Hospital and The Second Affiliated Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Shuye Yu
- Department of Neurology, Suzhou Ninth People's Hospital, Suzhou Ninth Hospital Affiliated to Soochow University, Suzhou, China
| | - Lei Lei
- Department of Neurology, Xianyang Hospital of Yan'an University, Xianyang, China
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10
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Kashani N, Cimflova P, Ospel JM, Singh N, Almekhlafi MA, Rempel J, Fiehler J, Chen M, Sakai N, Agid R, Heran M, Kappelhof M, Goyal M. Endovascular Device Choice and Tools for Recanalization of Medium Vessel Occlusions: Insights From the MeVO FRONTIERS International Survey. Front Neurol 2021; 12:735899. [PMID: 34603187 PMCID: PMC8480153 DOI: 10.3389/fneur.2021.735899] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/11/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Endovascular treatment (EVT) for stroke due to medium vessel occlusion (MeVO) can be technically challenging. Devices and tools are rapidly evolving. We aimed to gain insight into preferences and global perspectives on the usage of endovascular tools in treating MeVOs. Methods: We conducted an international survey with seven scenarios of patients presenting A3, M2/3, M3, M3/4, or P2/3 occlusions. Respondents were asked for their preferred first-line endovascular approach, and whether they felt that the appropriate endovascular tools were available to them. Answers were analyzed by occlusion location and geographical region of practice, using multinomial/binary logistic regression. Results: A total of 263 neurointerventionists provided 1836 responses. The first-line preferences of physicians were evenly distributed among stent-retrievers, combined approaches, and aspiration only (33.2, 29.8, and 26.8%, respectively). A3 occlusions were more often treated with stent-retrievers (RR 1.21, 95% CI: 1.07–1.36), while intra-arterial thrombolysis was more often preferred in M3 (RR 2.47, 95% CI: 1.53–3.98) and M3/4 occlusions (RR 7.71, 95% CI: 4.16–14.28) compared to M2/3 occlusions. Respondents who thought appropriate tools are currently not available more often chose stent retrievers alone (RR 2.07; 95% CI: 1.01–4.24) or intra-arterial thrombolysis (RR 3.35, 95% CI: 1.26–8.42). Physicians who stated that they do not have access to optimal tools opted more often not to treat at all (RR 3.41, 95% CI: 1.11–10.49). Stent-retrievers alone were chosen more often and contact aspiration alone less often as a first-line approach in Europe (RR 2.12, 95% CI: 1.38–3.24; and RR 0.49, 95% CI 0.34–0.70, respectively) compared to the United States and Canada. Conclusions: In EVT for MeVO strokes, neurointerventionalists choose a targeted vessel specific first-line approach depending on the occlusion location, region of practice, and availability of the appropriate tools.
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Affiliation(s)
- Nima Kashani
- Department of Diagnostic Imaging, Foothills Medical Center, University of Calgary, Calgary, AB, Canada
| | - Petra Cimflova
- Department of Clinical Neurosciences, Foothills Medical Center, University of Calgary, Calgary, AB, Canada.,Department of Medical Imaging, St. Anne's University Hospital Brno and Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Johanna M Ospel
- Department of Diagnostic Imaging, Foothills Medical Center, University of Calgary, Calgary, AB, Canada.,Department of Radiology, University Hospital of Basel, Basel, Switzerland
| | - Nishita Singh
- Department of Clinical Neurosciences, Foothills Medical Center, University of Calgary, Calgary, AB, Canada
| | - Mohammed A Almekhlafi
- Department of Clinical Neurosciences, Foothills Medical Center, University of Calgary, Calgary, AB, Canada
| | - Jeremy Rempel
- Department of Diagnostic Imaging, University of Alberta Hospital, University of Alberta, Edmonton, AB, Canada
| | - Jens Fiehler
- Department of Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Michael Chen
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, United States
| | - Nobuyuki Sakai
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Ronit Agid
- Department of Neuroradiology, Toronto Western Hospital, Toronto, ON, Canada
| | - Manraj Heran
- Department of Neuroradiology, Vancouver General Hospital, Toronto, ON, Canada
| | - Manon Kappelhof
- Department of Diagnostic Imaging, Foothills Medical Center, University of Calgary, Calgary, AB, Canada.,Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Mayank Goyal
- Department of Diagnostic Imaging, Foothills Medical Center, University of Calgary, Calgary, AB, Canada.,Department of Clinical Neurosciences, Foothills Medical Center, University of Calgary, Calgary, AB, Canada
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11
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Ospel JM, Goyal M. A review of endovascular treatment for medium vessel occlusion stroke. J Neurointerv Surg 2021; 13:623-630. [PMID: 33637570 DOI: 10.1136/neurintsurg-2021-017321] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 11/04/2022]
Abstract
Medium-vessel occlusions (MeVOs), that is, occlusions of the M2/3 middle cerebral artery, A2/3 anterior cerebral artery, and P2/3 posterior cerebral artery segments, account for 25%-40% of all acute ischemic stroke cases. Clinical outcomes of MeVO stroke with intravenous thrombolysis, which is the current standard of care, are moderate at best. With improving imaging technologies and a growing literature, MeVOs are increasingly recognized as a target for endovascular treatment (EVT). For the time being, there is limited but promising evidence for the safety and efficacy of MeVO EVT, and many neurointerventionists are already routinely offering EVT for MeVO stroke, despite the lack of clear guideline recommendations. In this article, we review the evidence on endovascular treatment for MeVO stroke and summarize the available literature on current imaging strategies, commonly used EVT selection criteria, EVT techniques, and outcome assessment for MeVO stroke.
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Affiliation(s)
- Johanna Maria Ospel
- Radiology, Universitatsspital Basel, Basel, Switzerland.,Clinical Neuroscienes, University of Calgary, Calgary, Alberta, Canada
| | - Mayank Goyal
- Clinical Neuroscienes, University of Calgary, Calgary, Alberta, Canada .,Diagnostic Imaging, University of Calgary, Calgary, Alberta, Canada
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12
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Bernava G, Rosi A, Boto J, Hofmeister J, Brina O, Reymond P, Muster M, Yilmaz H, Kulcsar Z, Carrera E, Bouri M, Lovblad KO, Machi P. Experimental evaluation of direct thromboaspiration efficacy according to the angle of interaction between the aspiration catheter and the clot. J Neurointerv Surg 2021; 13:1152-1156. [PMID: 33483456 PMCID: PMC8606460 DOI: 10.1136/neurintsurg-2020-016889] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 11/12/2022]
Abstract
Background Successful direct thromboaspiration (DTA) is related to several factors such as clot consistency, size, and location. It has also been demonstrated recently that the angle of interaction (AOI) formed by the aspiration catheter and the clot is related to DTA efficacy. The aims of this study were three-fold: (a) to confirm the clinical finding that the AOI formed by the aspiration catheter and the clot influence DTA efficacy; (b) to evaluate to what extent this influence varies according to differences in clot consistency and size; and (c) to validate stent retriever thrombectomy as an effective rescue treatment after DTA failure in the presence of an unfavorable AOI. Methods A rigid vascular phantom designed to reproduce a middle cerebral artery trifurcation anatomy with three M2 segments forming different angles with M1 and thrombus analog of different consistencies and sizes was used. Results DTA was highly effective for AOIs >125.5°, irrespective of thrombus analog features. However, its efficacy decreased for acute AOIs. Rescue stent retriever thrombectomy was effective in 92.6% of cases of DTA failure. Conclusions This in vitro study confirmed that the AOI formed by the aspiration catheter and the thrombus analog influenced DTA efficacy, with an AOI >125.5° related to an effective DTA. Stent retriever thrombectomy was an effective rescue treatment after DTA failure, even in the presence of an unfavorable AOI.
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Affiliation(s)
- Gianmarco Bernava
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Andrea Rosi
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - José Boto
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Jeremy Hofmeister
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Olivier Brina
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Philippe Reymond
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Michel Muster
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Hasan Yilmaz
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Zsolt Kulcsar
- Division of Neuroradiology, University Hospital Zurich, Zurich, Switzerland
| | - Emmanuel Carrera
- Division of Neurology, Geneva University Hospitals, Geneva, Switzerland
| | - Mohamed Bouri
- Federal Institute of Technology of Lausanne (EPFL), Lausanne, Switzerland
| | - Karl-Olof Lovblad
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
| | - Paolo Machi
- Division of Neuroradiology, Geneva University Hospitals, Geneva, Switzerland
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13
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Harsany J, Haring J, Hoferica M, Mako M, Janega P, Krastev G, Klepanec A. Aspiration thrombectomy as the first-line treatment of M2 occlusions. Interv Neuroradiol 2020; 26:383-388. [PMID: 32397859 DOI: 10.1177/1591019920925678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE The aim of the present study was (i) to evaluate the safety and efficacy of aspiration thrombectomy in patients with M2 occlusions and (ii) to compare outcome of treatment of occlusion of different M2 segments. MATERIALS AND METHODS Between March 2016 and June 2019, 82 patients with acute ischemic stroke and isolated M2 occlusions were treated in cerebrovascular stroke center with aspiration thrombectomy as the first-line treatment. Functional outcomes of patients with different types of M2 occlusions were statistically compared. Multivariable logistic regression analysis was performed to determine the factors associated with good clinical outcome. RESULTS The mean age was 71.9 ± 13.4 years, 47.6% were men. Aspiration thrombectomy alone was utilized in 72.5% of patients, with 27.5% of patients being treated with a combination of aspiration thrombectomy and stent retriever. At the three-month follow-up, there was no statistically significant difference in functional outcome between different types of M2 occlusions (p = 0.662), however in the underpowered analysis because of the small sample size of patients, with good clinical outcome mRS 0-2 in 50% of all treated patients. Symptomatic intracranial hemorrhage was found in 6.1% of patients. Lower age (OR 0.932, 95% CI 0.878-0.988) and lower NIHSS score upon admission (OR 0.893, 95% CI 0.805-0.991) were independent predictors of good clinical outcome. CONCLUSION Aspiration thrombectomy appeared to be a safe and effective first-line treatment option for patients with M2 occlusion, being the first-line option for almost three-quarters of patients.
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Affiliation(s)
- Jan Harsany
- Department of Radiology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Jozef Haring
- Department of Neurology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Matus Hoferica
- Department of Radiology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Miroslav Mako
- Department of Neurology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Pavol Janega
- Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Georgi Krastev
- Department of Neurology, Faculty Hospital Trnava, Trnava, Slovakia
| | - Andrej Klepanec
- Department of Radiology, Faculty Hospital Trnava, Trnava, Slovakia
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14
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Baharvahdat H, Ooi YC, Khatibi K, Ponce Mejia LL, Kaneko N, Nour M, Szeder V, Jahan R, Tateshima S, Vinuela F, Duckwiler G, Colby G. Increased Rate of Successful First Passage Recanalization During Mechanical Thrombectomy for M2 Occlusion. World Neurosurg 2020; 139:e792-e799. [PMID: 32371079 DOI: 10.1016/j.wneu.2020.04.159] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Mechanical thrombectomy (MT) is the standard of care for the treatment of acute ischemic stroke (AIS) caused by anterior circulation large-vessel occlusion. However, the true safety and efficacy of MT in medium-size vessel occlusions such as the M2 segment of the middle cerebral artery have yet to be completely defined. In this study, we analyze the safety and efficacy of MT in M2 occlusions compared with M1 occlusions. METHODS A retrospective analysis was performed of patients with AIS secondary to M1 and M2 occlusions between 2011 and 2018. The inclusion criteria were 1) AIS secondary to M1 or M2 occlusion, 2) MT performed by stentrieval technique alone, aspiration technique, or combined stentrieval-aspiration techniques. Basic patient characteristics, number of passages, first passage recanalization success (≥TICI [Thrombolysis in Cerebral Ischemia] grade 2b), total recanalization success, hemorrhagic complications (including intracerebral hemorrhage [ICH] and subarachnoid hemorrhage), and clinical outcomes were compared between both groups. RESULTS Two hundred and sixty patients met the inclusion criteria; 171 patients had M1 occlusion versus 89 with M2 occlusion. First passage recanalization success rate was significantly higher in the M2 group (55.1% vs. 39.2%; P = 0.015). Total recanalization success rate was higher in the M2 group but did not reach significance (83% vs. 75%; P = 0.128). Subarachnoid hemorrhage rate was significantly higher in the M2 group (25% vs. 12%; P = 0.010) but there was no difference for ICH complications (14.6% vs. 16.4%; P = 0.711). CONCLUSIONS MT for M2 occlusions has similar overall efficacy to that for M1 occlusions, but with higher first-pass successful recanalization rates. MT for M2 occlusions has a higher risk of associated subarachnoid hemorrhage.
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Affiliation(s)
- Humain Baharvahdat
- Department of Neurosurgery, University of California, Los Angeles, California, USA
| | - Yinn Cher Ooi
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA.
| | - Kasra Khatibi
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - Lucido L Ponce Mejia
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - Naoki Kaneko
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - May Nour
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - Viktor Szeder
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - Reza Jahan
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - Satoshi Tateshima
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - Fernando Vinuela
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - Gary Duckwiler
- Division of Interventional Neuroradiology, University of California, Los Angeles, California, USA
| | - Geoffrey Colby
- Department of Neurosurgery, University of California, Los Angeles, California, USA
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15
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Styczen H, Maus V, Hesse AC, Goertz L, Fischer S, Riedel C, Forsting M, Radbruch A, Behme D. Impact of early division of the middle cerebral artery on outcome following mechanical thrombectomy. Interv Neuroradiol 2020; 26:389-395. [PMID: 32340515 DOI: 10.1177/1591019920920987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Mechanical thrombectomy has become the standard care for acute ischemic stroke caused by large vessel occlusion. However, complete reperfusion cannot be achieved in all cases, and several factors influencing the results of mechanical thrombectomy have been investigated. Among others, a tortuous anatomy is associated with lower rates of complete reperfusion. We aimed to investigate whether an early division of the middle cerebral artery has an impact on reperfusion results in mechanical thrombectomy. METHODS Retrospective review of consecutive patients with M1 occlusion treated endovascularly between January 2016 and December 2019 at three tertiary care centers. The study group was dichotomized based on the length of the M1 segment. Early division of the middle cerebral artery was defined as a maximum length of 10 mm of the M1 segment. Primary endpoints were first-pass mTICI scores of 3, ≥2c, and ≥2b. Secondary endpoints contained final reperfusion, number of device-passes, time interval from groin puncture to reperfusion, rate of postinterventional symptomatic intracranial hemorrhage, and frequency of emboli of new territory. RESULTS Among 284 included patients, 70 presented with an early division of the M1 segment (25%). Reperfusion results did not differ significantly between early and late division of M1. A higher rate of symptomatic intracranial hemorrhage was found in the group with an early M1 division treated with aspiration only (14.3% vs. 0%; p = 0.013). Patients with late M1 division had a significantly higher rate of large artery sclerosis (19.2% vs. 8.6%, p = 0.039). CONCLUSION The anatomic variant of an early division of the middle cerebral artery was not a predictor for incomplete reperfusion.
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Affiliation(s)
- Hanna Styczen
- Institute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Volker Maus
- Department of Radiology, Neuroradiology and Nuclear Medicine, Ruhr-University Bochum, University Medical Center Langendreer, Bochum, Germany
| | - Amélie C Hesse
- Institute for Diagnostic and Interventional Neuroradiology, University Hospital Goettingen, Goettingen, Germany
| | - Lukas Goertz
- Center for Neurosurgery, Medical Faculty and University Hospital, University of Cologne, Cologne, Germany
| | - Sebastian Fischer
- Department of Radiology, Neuroradiology and Nuclear Medicine, Ruhr-University Bochum, University Medical Center Langendreer, Bochum, Germany
| | - Christian Riedel
- Institute for Diagnostic and Interventional Neuroradiology, University Hospital Goettingen, Goettingen, Germany
| | - Michael Forsting
- Institute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Alexander Radbruch
- Institute for Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Daniel Behme
- Institute for Diagnostic and Interventional Neuroradiology, University Hospital Goettingen, Goettingen, Germany
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