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Objective:   The prognostic value of the Global Registry of Acute Coronary Events (GRACE) risk score (GRS) and the Thrombolysis in Myocardial Infarction (TIMI) risk index (TRI) have been reported in patients with coronary artery disease (CAD). In this study, we sought to evaluate the association between TRI and the extent and severity of CAD evaluated by SYNTAX score (SS) and Gensini score in patients with ST elevation myocardial infarction (STEMI).Methods:   A total of 290 patients with STEMI were included in the study. GRS and TRI were calculated on admission using specified variables. The extent and severity of CAD were evaluated using the SS and Gensini scores. The patients were divided into low (TRI ⩽19), intermediate (TRI 19–30), and high (TRI ⩾30) risk groups. A Pearson correlation analysis was used for the relationship between TRI, GRS, Gensini score and SS.Results:   There were significant differences in the mean age ( p &lt; 0.001), admission heart rate ( p &lt; 0.001), admission systolic blood pressure ( p = 0.009), SS ( p &lt; 0.001), GRS ( p &lt; 0.001) and in-hospital major adverse cardiac events (MACE) in all patients between the low, intermediate and high TRI risk groups. There was a positive significant correlation between TRI and SS ( r = 0.24, p &lt; 0.001), Gensini score ( r = 0.18, p = 0.002), GRS ( r = 0.74, p = 0.001) and in-hospital MACE ( r = 0.29, p &lt; 0.001).Conclusion:   TRI is significantly related to SS and Gensini score in predicting the extent and severity of CAD in patients with STEMI.

therapeutic advances in cardiovascular disease

The relationship of TIMI risk index with SYNTAX and Gensini risk scores in predicting the extent and severity of coronary artery disease in patients with STEMI undergoing primary percutaneous coronary intervention