BACKGROUND: Coronary stenting is currently the most widely used technique for myocardial revascularization. The analysis of registries with large numbers of patients is important to evaluate treatment efficacy in the real world clinical practice. METHOD: The clinical and angiographic profile, incidence of complications and late outcomes in a cohort of patients treated with percutaneous coronary interventions (PCI) with coronary stent implantation from April 1996 to December 2007 were analyzed. Data was prospectively collected using a dedicated database, and analyzed by SPSS 11.0. RESULTS: In the study period, 5,284 patients underwent 6,254 stent implantation procedures. Mean age was 60.59 ± 10.63 years, and 73% were male. Most patients were treated for unstable angina (50%) and 14% for acute myocardial infarction (AMI). Clinical success was achieved in 95.8% of procedures, with vascular complications occurring in 3.6% and stent thrombosis in 0.5% of the patients. One-year clinical follow-up was obtained in a random sample of 1,610 patients, with the following event rates: cardiovascular death = 3.7%, AMI = 2.9%, CABG = 15.7%. The predictors of major cardiovascular events were the reference diameter of the vessel [odds ratio (OR): 0.69, 95% confidence interval (CI): 0.51-0.94; P = 0.018] and multivessel disease (OR: 1.38; 95% CI: 1,001-1,90; P = 0.049). CONCLUSION: These results show the efficacy of percutaneous coronary interventions in a large population of unselected patients of the real world clinical practice.
Angioplasty, transluminal, percutaneous coronary; Stents; Coronary artery disease
