Aspiration Versus Stent Retriever Thrombectomy for Distal, Medium Vessel Occlusion Stroke in the Posterior Circulation: A Subanalysis of the TOPMOST Study

Author:

Meyer Lukas1ORCID,Stracke Paul123ORCID,Wallocha Marta4ORCID,Broocks Gabriel1ORCID,Sporns Peter1ORCID,Piechowiak Eike I.5ORCID,Kaesmacher Johannes56ORCID,Maegerlein Christian7ORCID,Hernandez Petzsche Moritz Roman7ORCID,Dorn Franziska8,Zimmermann Hanna8ORCID,Naziri Weis910,Abdullayev Nuran11ORCID,Kabbasch Christoph11ORCID,Behme Daniel12ORCID,Jamous Ala12ORCID,Maus Volker13ORCID,Fischer Sebastian113,Möhlenbruch Markus14ORCID,Weyland Charlotte S.14ORCID,Langner Sönke15ORCID,Meila Dan16ORCID,Miszczuk Milena17ORCID,Siebert Eberhard17ORCID,Lowens Stephan18,Krause Lars Udo19,Yeo Leonard2021ORCID,Tan Benjamin2021ORCID,Gopinathan Anil2221ORCID,Gory Benjamin2324ORCID,Galván-Fernández Jorge25ORCID,Schüller Miguel25ORCID,Navia Pedro26ORCID,Raz Eytan27ORCID,Shapiro Maksim27,Arnberg Fabian28,Zeleňák Kamil29ORCID,Martínez-Galdámez Mario25ORCID,Kastrup Andreas30,Papanagiotou Panagiotis3132,Kemmling André33,Psychogios Marios3ORCID,Andersson Tommy2834ORCID,Chapot Rene4ORCID,Fiehler Jens1ORCID,Hanning Uta1ORCID,

Affiliation:

1. Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Germany (L.M., P.S., G.B., P.S., J.F., U.H.).

2. Department of Interventional Neuroradiology, University Hospital Muenster, Germany (P.S.).

3. Department of Diagnostic and Interventional Neuroradiology, University Hospital Basel, Switzerland (P.S., M.P.).

4. Department of Endovascular Therapy, Alfried-Krupp Hospital Essen, Germany (M.W., R.C.).

5. Institute of Diagnostic and Interventional Neuroradiology (E.I.P., J.K.), Inselspital, Bern University Hospital, University of Bern, Switzerland.

6. Institute of Diagnostic, Interventional and Pediatric Radiology (J.K.), Inselspital, Bern University Hospital, University of Bern, Switzerland.

7. Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Munich, Germany (C.M., M.R.H.P.).

8. Institute of Neuroradiology, University Hospitals, LMU Munich, Germany (F.D., H.Z.).

9. Department of Neuroradiology, Westpfalz-Klinikum, Kaiserslautern, Germany (W.N.).

10. Department of Neuroradiology, University Hospital Luebeck, Germany (W.N.).

11. Department of Neuroradiology, University of Cologne, Germany (N.A., C.K.).

12. Institute for Diagnostic and Interventional Neuroradiology, University Hospital Goettingen, Germany (D.B., A.J.).

13. Department of Diagnostic and Interventional Neuroradiology and Nuclear Medicine, Universitätsklinikum Knappschaftskrankenhaus Bochum, Universitätsklinik der Ruhr-Universität Bochum, Germany (V.M., S.F.).

14. Department of Neuroradiology, Heidelberg University Hospital, Germany (M.M., C.S.W.).

15. Institute for Diagnostic and Interventional Radiology, Pediatric and Neuroradiology, University Hospital Rostock, Germany (S.L.).

16. Department of Interventional Neuroradiology, Johanna-Étienne-Hospital, Neuss, Germany (D.M.).

17. Institute of Neuroradiology, Charité Universitätsmedizin Berlin, Germany (M.M., E.S.).

18. Department of Radiology (S.L.), Klinikum Osnabrück, Germany.

19. Department of Neurology (L.U.K.), Klinikum Osnabrück, Germany.

20. Division of Neurology, Department of Medicine (L.Y., B.T.), National University Health System, Singapore.

21. Yong Loo Lin School of Medicine, National University of Singapore (L.Y., B.T., A.G.).

22. Department of Diagnostic imaging (A.G.), National University Health System, Singapore.

23. Université de Lorraine, CHRU-Nancy, Department of Diagnostic and Therapeutic Neuroradiology, France (B.G.).

24. Université de Lorraine, IADI, INSERM U1254, F-54000 Nancy, France (B.G.).

25. Department of Interventional Neuroradiology, Hospital Clínico Universitario de Valladolid, Spain (J.G.-F., M.S., M.M.-G.).

26. Department of Neuroradiology, Hospital Universitario La Paz, Madrid, Spain (P.N.).

27. Department of Radiology, New York Langone Medical Center (E.R., M.S.).

28. Department of Neuroradiology, Karolinska University Hospital and Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden (F.A., T.A.).

29. Department of Radiology, Comenius University’s Jessenius Faculty of Medicine and University Hospital, Martin, Slovakia (K.Z.).

30. Department of Neurology, Hospital Bremen-Mitte, Germany (A.K.).

31. Department of Diagnostic and Interventional Neuroradiology, Hospital Bremen-Mitte, Germany (P.P.).

32. Department of Radiology, Areteion University Hospital, National and Kapodistrian University of Athens, Greece (P.P.).

33. Department of Neuroradiology, University Hospital Marburg, Germany (A.K.).

34. Department of Medical Imaging, AZ Groeninge, Kortrijk, Belgium (T.A.).

Abstract

Background: The optimal endovascular strategy for reperfusing distal medium-vessel occlusions (DMVO) remains unknown. This study evaluates angiographic and clinical outcomes of thrombectomy strategies in DMVO stroke of the posterior circulation. Methods: TOPMOST (Treatment for Primary Medium Vessel Occlusion Stroke) is an international, retrospective, multicenter, observational registry of patients treated for DMVO between January 2014 and June 2020. This study analyzed endovascularly treated isolated primary DMVO of the posterior cerebral artery in the P2 and P3 segment. Technical feasibility was evaluated with the first-pass effect defined as a modified Thrombolysis in Cerebral Infarction Scale score of 3. Rates of early neurological improvement and functional modified Rankin Scale scores at 90 days were compared. Safety was assessed by the occurrence of symptomatic intracranial hemorrhage and intervention-related serious adverse events. Results: A total of 141 patients met the inclusion criteria and were treated endovascularly for primary isolated DMVO in the P2 (84.4%, 119) or P3 segment (15.6%, 22) of the posterior cerebral artery. The median age was 75 (IQR, 62–81), and 45.4% (64) were female. The initial reperfusion strategy was aspiration only in 29% (41) and stent retriever in 71% (100), both achieving similar first-pass effect rates of 53.7% (22) and 44% (44; P =0.297), respectively. There were no significant differences in early neurological improvement (aspiration: 64.7% versus stent retriever: 52.2%; P =0.933) and modified Rankin Scale rates (modified Rankin Scale score 0–1, aspiration: 60.5% versus stent retriever 68.6%; P =0.4). In multivariable logistic regression analysis, the time from groin puncture to recanalization was associated with the first-pass effect (adjusted odds ratio, 0.97 [95% CI, 0.95–0.99]; P <0.001) that in turn was associated with early neurological improvement (aOR, 3.27 [95% CI, 1.16–9.21]; P <0.025). Symptomatic intracranial hemorrhage occurred in 2.8% (4) of all cases. Conclusions: Both first-pass aspiration and stent retriever thrombectomy for primary isolated posterior circulation DMVO seem to be safe and technically feasible leading to similar favorable rates of angiographic and clinical outcome.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Advanced and Specialized Nursing,Cardiology and Cardiovascular Medicine,Neurology (clinical)

Reference39 articles.

1. MeVO: the next frontier?

2. Endovascular Therapy for Acute Ischemic Stroke With Occlusion of the Middle Cerebral Artery M2 Segment

3. Thrombectomy for Distal, Medium Vessel Occlusions

4. Thrombectomy for Primary Distal Posterior Cerebral Artery Occlusion Stroke

5. Thrombectomy for secondary distal, medium vessel occlusions of the posterior circulation: seeking complete reperfusion [published online July 16, 2021].;Meyer L;J Neurointerv Surg

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