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Complex percutaneous coronary intervention (C-PCI) is associated with an increased risk of ischaemic and bleeding complications. We aimed to assess the safety and efficacy of a 1–3-month dual antiplatelet therapy (DAPT) regimen followed by P2Y₁₂ inhibitor monotherapy after C-PCI.

We conducted a meta-analysis of randomized trials comparing a 1–3-month DAPT regimen followed by P2Y₁₂ inhibitor monotherapy with standard (≥12 months) DAPT in patients undergoing C-PCI. C-PCI criteria and the co-primary bleeding and ischaemic outcomes were determined according to each trial. Secondary outcomes included major bleeding, all-cause death, myocardial infarction, and stent thrombosis. All outcomes were evaluated at 12 months after randomization. We used hazard ratios (HRs) and 95% confidence interval (CI) as a metric of choice for …