Journal
ANNALS OF INTERNAL MEDICINE
Volume 172, Issue 7, Pages 474-+Publisher
AMER COLL PHYSICIANS
DOI: 10.7326/M19-3763
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Funding
- Blumenthal Scholars Fund in Preventive Cardiology at Johns Hopkins University
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Background: The safety and effectiveness of dual therapy (direct oral anticoagulant [DOAC] plus P2Y12 inhibitor) versus triple therapy (vitamin K antagonist plus aspirin and P2Y12 inhibitor) in patients with nonvalvular atrial fibrillation (AF) after percutaneous coronary intervention (PCI) is unclear. Purpose: To examine the effects of dual versus triple therapy on bleeding and ischemic outcomes in adults with AF after PCI. Data Sources: Searches of PubMed, EMBASE, and the Cochrane Library (inception to 31 December 2019) and ClinicalTrials.gov (7 January 2020) without language restrictions; journal Web sites; and reference lists. Study Selection: Randomized controlled trials that compared the effects of dual versus triple therapy on bleeding, mortality, and ischemic events in adults with AF after PCI. Data Extraction: Two independent investigators abstracted data, assessed the quality of evidence, and rated the certainty of evidence. Data Synthesis: Four trials encompassing 7953 patients were selected. At the median follow-up of 1 year, high-certainty evidence showed that dual therapy was associated with reduced risk for major bleeding compared with triple therapy (risk difference [RD], -0.013 [95% CI, -0.025 to -0.002]). Low-certainty evidence showed inconclusive effects of dual versus triple therapy on risks for all-cause mortality (RD, 0.004 [CI, -0.010 to 0.017]), cardiovascular mortality (RD, 0.001 [CI, -0.011 to 0.013]), myocardial infarction (RD, 0.003 [CI, -0.010 to 0.017]), stent thrombosis (RD, 0.003 [CI, -0.005 to 0.010]), and stroke (RD, -0.003 [CI, -0.010 to 0.005]). The upper bounds of the CIs for these effects were compatible with possible increased risks with dual therapy. Limitation: Heterogeneity of study designs, dosages of DOACs, and types of P2Y12 inhibitors. Conclusion: In adults with AF after PCI, dual therapy reduces risk for bleeding compared with triple therapy, whereas its effects on risks for death and ischemic end points are still unclear.
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