P2Y12 Inhibitor Monotherapy After a Short Dual Antiplatelet Therapy Versus Standard-Term Dual Antiplatelet Therapy in Pa
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SYSTEMATIC REVIEW
P2Y12 Inhibitor Monotherapy After a Short Dual Antiplatelet Therapy Versus Standard‑Term Dual Antiplatelet Therapy in Patients Undergoing Percutaneous Coronary Intervention: A Contemporary Meta‑Analysis Ai‑Chen Ho1 · Ugochukwu Egolum2 · Shanea Parker3 · Jordan Dimmel4 · Andrew Hawkins4 · Hua Ling4
© Springer Nature Switzerland AG 2020
Abstract Background and Objectives Dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI) reduces the incidence of thrombotic events but increases the risk of bleeding, which is associated with a substantial and durable risk of death and could offset the benefits of a reduction in thrombotic events. P2Y12 inhibitor monotherapy after short-term DAPT could be an option to reduce the risk of bleeding. We carried out a meta-analysis comparing P2Y12 inhibitor monotherapy after short-term DAPT with standard-term DAPT in patients undergoing PCI. Methods We searched the PubMed and EMBASE databases through 11 April 2020. Two authors independently reviewed and selected eligible trials. The DerSimonian–Laird method with the binary random-effects model was used to calculate the relative risk (RR) with 95% confidence interval (CI). Results Five trials involving 23,762 patients were included in the final analyses; four were open-label trials, while the TWILIGHT trial was double-blinded. Ticagrelor was used in three trials, and the other two trials included several P2Y12 inhibitors. P2Y12 inhibitor monotherapy after short-term DAPT significantly reduced the bleeding events, defined as Bleeding Academic Research Consortium (BARC) type 3 or 5 bleeding and Thrombolysis in Myocardial Infarction (TIMI) major or minor bleeding, by 39% (RR 0.61, 95% CI 0.38–0.99; p = 0.045) and 46% (RR 0.56, 95% CI 0.42–0.73; p
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