The Relationship of the Extent of Coronary Artery Disease with TIMI Risk Model in Patients with Acute ST Segment Elevation Myocardial Infarction

Abstract

OBJECTIVE: Preventive angioplasty may be useful for patients presenting with ST elevation myocardial infarction (STEMI), in whom multivessel disease was detected. TIMI risk scoring may be related to the severity of coronary artery disease (CAD) in these patients. This study aimed to investigate the relationship between the presence of multivessel disease on coronary angiograms and TIMI scores in patients with STEMI.METHODS: Ninety-one patients (73 males; 18 females) who presented with STEMI and treated with angioplasty were enrolled in the study. TIMI scores were calculated for all patients at presentation and the patients were classified into low (0-4) and high (5-14) risk groups based on TIMI scores. The extent of CAD was determined by experienced operators. One-way ANOVA was used for comparisons.RESULTS: Low TIMI risk score group included 70 (76.9%) patients and high TIMI risk score group included 21 (23.1%) patients. Coronary angiography results showed that 44 (48.4%) patients had involvement of 1 vessel, 24 (26.4%) patients had involvement of 2 vessels, and 23 (25.2%) patients had involvement of 3 vessels. There was no relationship between TIMI scores and the extent of CAD in patients (p=0.522).CONCLUSION: There was no association between TIMI scores and the extent of CAD in STEMI patients. TIMI risk scoring may not be useful in triage of STEMI patients. Future studies assessing the relationship between other risk scores and the extent of CAD would be still relevant and of great interest.