Tp-e/QTc ratio, SYNTAX, and GRACE score in patients who underwent coronary angiography owing to acute coronary syndrome

Objective: Ventricular arrhythmias following acute coronary syndrome (ACS) range from benign to life-threatening fatal arrhythmias. Tpeak-end (Tp-e) interval has been shown to be an important parameter in the assessment of repolarization dispersion. We aimed to evaluate the relationship between SYNTAX and Global Registry of Acute Coronary Events (GRACE) risk score calculated on admission and Tp-e interval and Tp-e/QTc ratio. Methods: A total of 421 patients were included in the study. The patients were divided into 2 groups as low SYNTAX score (22). According to the GRACE risk score, the patients were divided into 2 groups; high-risk patients >= 140 and 22, the Tp-e interval (p