Percutaneous coronary intervention in insulin‐treated diabetic patients: A meta‐analysis

Background This meta‐analysis of randomized controlled trials (RCTs) compared long‐term adverse clinical outcomes of percutaneous coronary intervention (PCI) in insulin‐treated diabetes mellitus (ITDM) and non‐ITDM patients. Methods This is a meta‐analysis study. The PubMed and Embase databases were searched for articles on long‐term adverse clinical outcomes of PCI in ITDM and non‐ITDM patients. The risk ratios (RR) and 95% confidence intervals (CI) were calculated. Results A total of 11 related RCTs involving 8853 DM patients were included. Compared with non‐ITDM patients, ITDM patients had significantly higher all‐cause mortality (ACM) (RR = 1.52, 95% CI: 1.25–1.85, p heterogeneity = .689, I 2 = 0%), major adverse cardiac and cerebrovascular events (MACCE) (RR = 1.35, 95% CI: 1.18–1.55, p heterogeneity = .57, I 2 = 0%), myocardial infarction (MI) (RR = 1.41, 95% CI: 1.16–1.72, p heterogeneity = .962, I 2 = 0%), and stent thrombosis (ST) (RR = 1.75, 95% CI: 1.23–2.48, p heterogeneity = .159, I 2 = 32.4%). No significant difference was found in the target lesion revascularization (TLR) and target vessel revascularization (TVR) between the ITDM and non‐ITDM groups. Conclusions The results showed that ITDM patients had significantly higher ACM, MACCE, MI, and ST, compared with non‐ITDM patients.