Antiplatelet therapy versus intravenous thrombolysis for mild acute ischaemic stroke: a living systematic review and meta-analysis
- PMID: 39134430
- PMCID: PMC12107457
- DOI: 10.1136/svn-2024-003097
Antiplatelet therapy versus intravenous thrombolysis for mild acute ischaemic stroke: a living systematic review and meta-analysis
Abstract
Background: Previous studies have shown contradictory results between early application of antiplatelet therapy and intravenous thrombolysis (IVT) for mild acute ischaemic stroke (AIS), with National Institutes of Health Stroke Scale score 0-5.
Objective: To compare the benefits and risks of antiplatelet therapy and IVT in patients with mild AIS.
Methods: A systematic search of MEDLINE, Embase and Cochrane Library was conducted from database inception until July 2023, without language restriction. Randomised clinical trials (RCTs) or observational studies were selected. The primary outcomes were 90-day functional outcomes, measured by the modified Rankin Scale (mRS) score. The protocol has been registered before data collection.
Results: Two RCTs and four observational studies with relatively low risk of bias that enrolled 3975 patients were analysed (2454 in antiplatelet therapy and 1521 in IVT therapy). There were no significant differences between antiplatelet therapy and IVT in 90-day functional outcomes (mRS 0-1, OR 1.08 (95% CI 0.73 to 1.58); mRS 0-2, OR, 1.04 (95% CI 0.63 to 1.73)), death (OR, 0.64 (95% CI 0.19 to 2.13)) and stroke recurrence (OR, 0.71 (95% CI 0.28 to 1.79)). Antiplatelet therapy was associated with a reduced risk of symptomatic intracranial haemorrhage (sICH) compared with IVT (OR, 0.20 (95% CI 0.06 to 0.69)).
Conclusions: Among patients with mild AIS, compared with IVT, early application of antiplatelet therapy was not significantly associated with improved functional outcomes, reduced death or stroke recurrence, but was significantly associated with a reduced risk of sICH.
Prospero registration number: CRD42023447862.
Keywords: Stroke; Thrombolysis; Thrombolytic Therapy.
© Author(s) (or their employer(s)) 2025. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ Group.
Conflict of interest statement
Competing interests: None declared.
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References
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- Powers WJ, Rabinstein AA, Ackerson T, et al. Guidelines for the early management of patients with acute ischemic stroke: 2019 update to the 2018 guidelines for the early management of acute ischemic stroke: a guideline for healthcare professionals from the American heart association/American stroke association. Stroke. 2019;50:e344–418. doi: 10.1161/STR.0000000000000211. - DOI - PubMed
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