Abstract 11546: Ten-Year Trends in the Nationwide Clinical Outcome After Percutaneous Coronary Intervention

Abstract

Introduction: We investigated the 10-year trends in the clinical outcome of percutaneous coronary intervention (PCI) in an unselected all-comer nationwide cohort. Hypothesis: Mortality following PCI is a key quality measurement in clinical practice and should be investigated within the context of the changing clinical comorbidities. Methods: Patients undergoing PCI for the first time between 2006 and 2015 from database of the National Health Insurance Service of Korea were included and followed until death or being censored by December 2016. Results: A total of 437,436 patients was included. Patients were divided into quartile subgroups according to a clinical score that predicting 1-year death risk. Over the decade, the annual number of PCI increased from 32,098 to 51,990 (p<0.001). The proportion of patients with higher risk quartiles increased, whereas lower risk quartiles decreased (p<0.001). The 1-year cumulative incidence rate of death did not change in the population with 1st (0.9% to 0.8%) and 2nd (1.3% to 1.3%) risk score quartiles, whereas it increased in the population with 3rd (3.4% to 5.1%) and 4th (15.5% to 19.4%) risk score quartiles (p<0.001 by restrictive mean survival time). Conclusions: This real-world data analysis showed that the number, proportion, and the risk of high-risk patients increased over the decade in Korea.