The correlation between thrombolysis in myocardial infarction and angiographic scores in patients with ST-elevation myocardial infarction

Myocardial infarction is a common and lethal disease, especially in the first hours. Rapid and correct decision is essential to prioritize advanced therapies. This study followed the accuracy of a scoring system for this triage. The aim was to assess the correlation between thrombolysis in myocardial infarction risk scores and angiographic scores in patients with ST elevation myocardial infarctio. In this cross-sectional, correlation study, 240 patients with ST elevation myocardial infarction from coronary care units (CCUs) of 3 academic hospitals in Isfahan, Iran,were evaluated. Thrombolysis in myocardial infarction risk score was calculated. All subjects underwent angiography and were followed up for 2 months. Mean age of patients was 60.02 ± 11.95 years old and 79 patients were female. The correlation between thrombolysis in myocardial infarction risk and angiographic scores was significant (P < 0.001). In addition, the correlations between ejection fraction and thrombolysis in myocardial infarction risk score (P < 0.001), as well as angiographic score and age (P < 0.001)were significant. There was no significant correlation between angiographic score and recurrent angina (P = 0.143), rehospitalization (P = 0.524), and death (P = 0.179). Pearson's correlation showed a significant relation between thrombolysis in myocardial infarction risk score and angiographic score (P < 0.001; r = 0.556). This study showed that thrombolysis in myocardial infarction risk score could probably be used for evaluating the angiographic extent of coronary artery disease. If onfirmed by a prospective cohort study, simple clinical use of this score at bedside would make it a method to stratify patients in high and low risk groups. Diagnostic and therapeutic strategies would accordingly be catgorized.