Comparison of effects of triple antithrombotic therapy and dual antiplatelet therapy on long-term outcomes of acute myocardial infarction

This study aimed to compare the long-term outcome of triple antithrombotic therapy (TAT) with that of dual antiplatelet therapy (DAPT) after AMI. This was a nationwide, propensity score-matched, case –control study of 186,112 first AMI patients, of whom 2,825 received TAT comprising aspirin, clopidogrel, and warfarin. Propensity score matching in a ratio of 1:4 by age, sex, comorbidities, and treatment was adopted, Finally, 2,813 AMI patients and 11,252 matched controls that were administered TAT and DAPT (aspirin and clopidogrel), respectively, were included in our analysis. The 12-year overall survival rate did not differ between both strategies (P = .3167). TAT was beneficial in old age (hazard ratio [HR] = 0.92), female sex (HR = 0.86), atrial fibrillation (AF) (HR = 0.80), hypertension (HR = 0.92), cerebrovascular accident (HR = 0.90), and in the absence of percutaneous coronary intervention (HR = 0.79). TAT red uced the rate of recurrent myocardial infarction (P = .0108) but did not affect the rate of stroke (P = .4867), gastrointestinal bleeding (P = .3889), or intracranial hemorrhage (ICH) (P = .3449). TAT reduces the incidence of recurrent myocardial infarction and does not increase the risk of major bleeding, while compared to DAPT.
Source: Heart and Vessels - Category: Cardiology Source Type: research

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