COMPARATIVE STUDY
JOURNAL ARTICLE
META-ANALYSIS
SYSTEMATIC REVIEW
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Ticagrelor versus clopidogrel after fibrinolytic therapy in patients with ST-elevation myocardial infarction: a systematic review and meta-analysis of randomized clinical trials.

Dual antiplatelet therapy with aspirin and clopidogrel are recommended as adjuncts to fibrinolytic-treated patients with ST-elevation myocardial infarction (STEMI). However, the role of switching to ticagrelor within 24 h of fibrinolytics compared with clopidogrel continuation in this setting is uncertain. Hence, we conducted a comprehensive search of electronic databases for all randomized clinical trials (RCTs) that evaluated the safety and efficacy of ticagrelor versus clopidogrel after fibrinolytic therapy in patients with STEMI. A random-effects model was used to calculate the risk ratios (RRs) and 95% confidence intervals (CIs). A total of 5 RCTs that evaluated the efficacy of ticagrelor post-fibrinolysis were identified. We included 3 RCTs with 3999 total patients for our meta-analysis. The results showed similar short-term clinical outcomes between ticagrelor and clopidogrel with regard to rates of Bleeding Academic Research Consortium (BARC) type ≥ 2 bleeding (RR 0.94; 95% CI 0.56-1.60; P = 0.83), major adverse cardiovascular events (RR 0.87; 95% CI 0.49-1.52; P = 0.62), mortality (RR 0.92; 95% CI 0.53-1.59; P = 0.77), myocardial infarction (RR 0.76; 95% CI 0.43-1.36; P = 0.36), and stroke (RR 0.93; 95% CI 0.50-1.73; P = 0.82). Our results demonstrate that in STEMI patients treated with fibrinolytic therapy, switching to ticagrelor was associated with similar bleeding and ischemic outcomes compared with clopidogrel continuation.

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