Efficacy and Safety of Proton Pump Inhibitors in Patients With Coronary Artery Diseases Receiving Oral Antiplatelet Agents and/or Anticoagulants: A Systematic Review and Meta-Analysis.

The purpose of this meta-analysis was to evaluate the efficacy and safety of proton pump inhibitors (PPIs) plus antithrombotic strategy in patients with coronary artery diseases compared with antithrombotic strategy alone. We searched PubMed, EMBASE, Cochrane Library, and Chinese Biomedical Medical Literature databases to retrieve randomized controlled trials investigating PPIs combined with antithrombotic strategy in coronary artery diseases. The primary efficacy outcome was major adverse cardiovascular and cerebrovascular events (MACCE). The primary safety outcome was gastrointestinal events. Secondary outcomes included all-cause death, cardiovascular death, myocardial infarction, stent thrombosis, significant bleeding from gastroduodenal lesions, and gastroduodenal ulcer. Overall, 43,943 patients were enrolled from 19 trials. The incidence of MACCE [relative risk (RR) 1.05; 95% confidence interval (CI) 0.96-1.15], all-cause death (RR 0.84; 95% CI 0.69-1.01), cardiovascular death (RR 0.88; 95% CI 0.69-1.12), myocardial infarction (RR 0.98; 95% CI 0.88-1.09), stent thrombosis (RR 1.01; 95% CI 0.76-1.34), and gastroduodenal ulcer (RR 0.40; 95% CI 0.13-1.29) did not increase significantly in patients receiving PPIs compared with patients without those. There were significant differences in the risk of gastrointestinal events (RR 0.34; 95% CI 0.21-0.54) and significant bleeding from gastroduodenal lesions (RR 0.09; 95% CI 0.03-0.28) between the 2 groups. In patients with coronary artery diseases, PPIs plus antithrombotic strategy could reduce the risk of gastrointestinal events and significant bleeding from gastroduodenal lesions but may not affect the incidence of MACCE, all-cause death, cardiovascular death, myocardial infarction, stent thrombosis, and gastroduodenal ulcer (PROSPERO: CRD42021277899, date of registration October 10, 2021).