Safety and clinical outcomes of endovascular therapy versus medical management in late presentation of large ischemic stroke

Author:

Mujanovic Adnan1ORCID,Strbian Daniel2ORCID,Demeestere Jelle34ORCID,Marto João Pedro5ORCID,Puetz Volker67,Nogueira Raul G89,Abdalkader Mohamad1011,Nagel Simon1213,Raymond Jean14,Ribo Marc15,Michel Patrik16,Yoshimura Shinichi17,Zaidat Osama O18,Winzer Simon67,Ortega-Gutierrez Santiago19,Sheth Sunil A20,Siegler James E21,Dusart Anne22,Haussen Diogo C23,Henon Hilde24,Serrallach Bettina L1,Mohammaden Mahmoud H23,Möhlenbruch Markus A25ORCID,Olive-Gadea Marta15,Puri Ajit S26,Sakai Nobuyuki27ORCID,Klein Piers1011ORCID,Tomppo Liisa2ORCID,Caparros Francois24,Ramos João Nuno28ORCID,Jumaa Mouhammad29,Zaidi Syed29,Dobrocky Tomas1,Martinez-Majander Nicolas2ORCID,Nannoni Stefania30,Bellante Flavio22ORCID,Rodriguez-Calienes Aaron19,Salazar-Marioni Sergio20ORCID,Virtanen Pekka31ORCID,Kaiser Daniel PO732,Ventura Rita5,Jesser Jessica25ORCID,Castonguay Alicia C29,Qureshi Muhammad M933,Masoud Hesham E34,Galecio-Castillo Milagros19,Requena Manuel15ORCID,Lauha Riikka31,Hu Wei35,Lin Eugene18,Miao Zhongrong36,Roy Daniel14,Yamagami Hiroshi37,Seiffge David J38ORCID,Strambo Davide16,Ringleb Peter A13,Lemmens Robin34,Fischer Urs3839,Nguyen Thanh N1140ORCID,Kaesmacher Johannes1

Affiliation:

1. Diagnostic and Interventional Neuroradiology, University Hospital Bern, University of Bern, Bern, Switzerland

2. Neurology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland

3. Neurology, UZ Leuven, Leuven, Belgium

4. Laboratory for Neurobiology, KU Leuven, Leuven, Belgium

5. Neurology, Hospital de Egas Moniz, Centro Hospitalar Lisboa Ocidental, Lisbon, Portugal

6. Neurology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany

7. Dresden Neurovascular Center, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany

8. Neurology, University of Pittsburgh Medical Center, Pittsburgh, USA

9. Neurosurgery, University of Pittsburgh Medical Center, Pittsburgh, USA

10. Neurology, Boston Medical Center, Boston University Chobanian & Avedisian School of Medicine, USA

11. Radiology, Boston Medical Center, Boston University Chobanian & Avedisian School of Medicine, USA

12. Neurology, Klinikum Ludwigshafen, Ludwigshafen, Germany

13. Neurology, Heidelberg University Hospital, Heidelberg, Germany

14. Interventional Neuroradiology, Centre Hospitalier de l’Universite de Montreal, Radiology, Montreal, Canada

15. Neurology, Hospital Vall d’Hebron, Barcelona, Spain

16. Neurology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland

17. Neurosurgery, Hyogo Medical University, Japan

18. Neuroscience and Stroke Program, Bon Secours Mercy Health St. Vincent Hospital, Toledo, USA

19. Neurology, University of Iowa, Iowa City, USA

20. Neurology, UTHealth McGovern Medical School, Neurology, Houston, USA

21. Neurology, University of Chicago, Chicago, USA

22. Neurology, Hôpital Civil Marie Curie, Charleroi, Belgium

23. Neurology, Grady Memorial Hospital, Atlanta, USA

24. Neurology, Centre Hospitalier Universitaire de Lille, Lille, France

25. Radiology, Heidelberg University Hospital, Heidelberg, Germany

26. Division of Interventional Neuroradiology, University of Massachusetts Memorial Medical Center, Worcester, USA

27. Neurosurgery, Seijinkai Shimizu Hospital, Kyoto, Japan

28. Neuroradiology, Hospital de Egas Moniz, Centro Hospitalar Lisboa Occidental, Lisbon, Portugal

29. Neurology, University of Toledo, Toledo, USA

30. Clinical Neurosciences, University of Cambridge, Cambridge, UK

31. Radiology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland

32. Institute of Neuroradiology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany

33. Radiation Oncology, Boston Medical Center, USA

34. Neurology, State University of New York, Syracuse, USA

35. Neurology, The First Affiliated Hospital of USTC, China

36. Interventional Neuroradiology, Beijing Tiantan Hospital, Beijing, China

37. Division of Stroke Prevention and Treatment, University of Tsukuba, Tsukuba, Japan

38. Neurology, University Hospital Bern, University of Bern, Bern, Switzerland

39. Neurology, University Hospital Basel, University of Basel, Basel, Switzerland

40. Neurology, Boston Medical Center, Boston, USA

Abstract

Introduction: The benefit of endovascular therapy (EVT) among stroke patients with large ischemic core (ASPECTS 0–5) in the extended time window outside of trial settings remains unclear. We analyzed the effect of EVT among these stroke patients in real-world settings. Patients and methods: The CT for Late Endovascular Reperfusion (CLEAR) study recruited patients from 66 centers in 10 countries between 01/2014 and 05/2022. The extended time-window was defined as 6–24 h from last-seen-well to treatment. The primary outcome was shift of the 3-month modified Rankin scale (mRS) score. Safety outcomes included symptomatic intracranial hemorrhage (sICH) and mortality. Outcomes were analyzed with ordinal and logistic regressions. Results: Among 5098 screened patients, 2451 were included in the analysis (median age 73, 55% women). Of patients with ASPECTS 0–5 ( n = 310), receiving EVT ( n = 209/310) was associated with lower 3-month mRS when compared to medical management (median 4 IQR 3–6 vs 6 IQR 4–6; aOR 0.4, 95% CI 0.2–0.7). Patients undergoing EVT had higher sICH (11.2% vs 4.0%; aOR 4.1, 95% CI 1.2–18.8) and lower mortality (31.6% vs 58.4%, aOR 0.4; 95% CI 0.2–0.9) compared to medically managed patients. The relative benefit of EVT was comparable between patients with ASPECTS 0 and 5 and 6–10 in the extended time window (interaction aOR 0.9; 95% CI 0.5–1.7). Conclusion: In the extended time window, patients with ASPECTS 0–5 may have preserved relative treatment benefit of EVT compared to patients with ASPECTS 6–10. These findings are in line with recent trials showing benefit of EVT among real-world patients with large ischemic core in the extended time window. Trial registration number: clinicaltrials.gov; Unique identifier: NCT04096248

Publisher

SAGE Publications

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