Endovascular therapy in acute ischemic stroke with poor reperfusion is associated with worse outcomes compared with best medical management: a HERMES substudy

Rex, N. et al. (2023) Endovascular therapy in acute ischemic stroke with poor reperfusion is associated with worse outcomes compared with best medical management: a HERMES substudy. Journal of NeuroInterventional Surgery, -2023. (doi: 10.1136/jnis-2023-020411) (PMID:37532454) (Early Online Publication)

Abstract

Background: Functional outcomes in patients with acute ischemic stroke (AIS) with large vessel occlusion (LVO) undergoing endovascular treatment (EVT) with poor reperfusion were compared with patients with AIS-LVO treated with best medical management only. Methods: Data are from the HERMES collaboration, a patient-level meta-analysis of seven randomized EVT trials. Baseline characteristics and functional outcomes (modified Rankin Scale (mRS) score at 90 days) were compared between patients with poor reperfusion (defined as modified Thrombolysis in Cerebral Infarction Score 0–1 on the final intracranial angiography run as assessed by the central imaging core laboratory) and patients in the control arm with multivariable logistic ordinal logistic regression adjusted for pre-specified baseline variables. Results: 972 of 1764 patients from the HERMES collaboration were included in the analysis: 893 in the control arm and 79 in the EVT arm with final mTICI 0–1. Patients with poor reperfusion who underwent EVT had higher baseline National Institutes of Health Stroke Scale than controls (median 19 (IQR 15.5–21) vs 17 (13–21), P=0.011). They also had worse mRS at 90 days compared with those in the control arm in adjusted analysis (median 4 (IQR 3–6) vs median 4 (IQR 2–5), adjusted common OR 0.59 (95% CI 0.38 to 0.91)). Symptomatic intracranial hemorrhage was not different between the two groups (3.9% vs 3.5%, P=0.75, adjusted OR 0.94 (95% CI 0.23 to 3.88)). Conclusion: Poor reperfusion after EVT was associated with worse outcomes than best medical management, although no difference in symptomatic intracranial hemorrhage was seen. These results emphasize the need for additional efforts to further improve technical EVT success rates.

• Item Type: Articles
• Status: Early Online Publication
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Muir, Professor Keith
• Authors: Rex, N., Ospel, J. M., Brown, S. B., McDonough, R. V., Kashani, N., Hill, M. D., Dippel, D. W.J., Campbell, B., Muir, K., Demchuk, A. M., Bracard, S., Guillemin, F., Jovin, T. G., Mitchell, P. J., White, P., Majoie, C. B.L.M., Saver, J. L., and Goyal, M.
• College/School: College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
• Journal Name: Journal of NeuroInterventional Surgery
• Publisher: BMJ Publishing Group
• ISSN: 1759-8478
• ISSN (Online): 1759-8486
• Published Online: 02 August 2023
• Copyright Holders: Copyright © TheAuthor(s) or their employer(s)) 2023
• First Published: First published in Journal of NeuroInterventional Surgery 2023
• Publisher Policy: Reproduced in accordance with the publisher copyright policy