A re-evaluation of unstable angina braunwald classification in Chinese patients undergoing percutaneous coronary intervention

摘要

Background and Objective Treatment strategy for unstable angina has underwent significant changes since the introduction of Braunwald classification of unstable angina nearly 30 years ago,yet re-evaluation of this routinely used classification system is rarely published in recent years.We aim to re-evaluate the Braunwald unstable angina(UA)classification on its predictive value of clinical characteristics,angiographic features,and occurrence of future adverse events.