ABSTRACT
BACKGROUND: The Clinical SYNTAX Score (CSS) combines anatomical and clinical risk assessment. OBJECTIVES: This study was designed to evaluate CSS as a predictor of prognosis in patients with ST-elevation myocardial infarction (STEMI) undergoing a primary percutaneous coronary intervention (p-PCI). METHODS: We evaluated 433 patients who were diagnosed with STEMI and underwent p-PCI. CSS was calculated by multiplying the anatomically derived SYNTAX score (Sx) by the modified age, creatinine, and ejection fraction score. Patients were divided into tertiles according to the CSS: CSS(Low)≤14 (n=141), 14