Restarting Anticoagulant Therapy After Intracranial Hemorrhage Clinical Sciences

Background and Purpose—The safety and efficacy of restarting anticoagulation therapy after intracranial hemorrhage (ICH) remain unclear. We performed a systematic review and meta-analysis to summarize the associations of anticoagulation resumption with the subsequent risk of ICH recurrence and thromboembolism.Methods—We searched published medical literature to identify cohort studies involving adults with anticoagulation-associated ICH. Our predictor variable was resumption of anticoagulation. Outcome measures were thromboembolic events (stroke and myocardial infarction) and recurrence of ICH. After assessing study heterogeneity and publication bias, we performed a meta-analysis using random-effects models to assess the strength of association between anticoagulation resumption and our outcomes.Results—Eight studies were eligible for inclusion in the meta-analysis, with 5306 ICH patients. Almost all studies evaluated anticoagulation with vitamin K antagonists. Reinitiation of anticoagulation was associated with a significantly lower risk of thromboembolic complications (pooled relative risk, 0.34; 95% confidence interval, 0.25–0.45; Q=5.12, P for heterogeneity=0.28). There was no evidence of increased risk of recurrent ICH after reinstatement of anticoagulation therapy, although there was significant heterogeneity among included studies (pooled relative risk, 1.01; 95% confidence interval, 0.58–1.77; Q=24.68, P for heterogeneity
Source: Stroke - Category: Neurology Authors: Tags: Catheter Ablation and Implantable Cardioverter-Defibrillator, Myocardial Infarction, Intracranial Hemorrhage, Ischemic Stroke Original Contributions Source Type: research

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