Evaluation of the Diagnostic Value and Prognostic Role of Positive Exercise Stress Echocardiography in Coronary Artery Disease

Background: Despite steps in lifestyle changes and preventive measures, the incidence of heart disease is still rising. Coronary artery disease (CAD) is the world's leading cause of death; thus, the early detection of this disease can significantly reduce its mortality rate. We evaluated the diagnostic value and prognostic role of positive exercise stress echocardiography in CAD.Methods: The present retrospective study was performed on 350 patients with symptoms of IHD referred for exercise stress echocardiography between 2004 and 2017. The obtained data were analyzed using the SPSS software.Results: Ischemic electrocardiographic (ECG) changes, the regional wall motion abnormality (RWMA) score index, the metabolic equivalent, and the peak left ventricular ejection fraction were associated with CAD (P=0.004, P=0.000, P=0.02, and P=0.000, respectively). The incidence of ventricular arrhythmias was associated with sudden cardiac death and myocardial infarction (P=0.00). Ischemic ECG changes were significantly associated with myocardial infarction and the need for percutaneous coronary interventions in the future (P=0.04 and P=0.03). The relationship between left ventricular dilation and sudden cardiac death was significant (P=0.01), and RWMAs were significantly associated with myocardial infarction (P=0.03). However, dyspnea and chest pain had no association with cardiac events.Conclusions: Positive exercise stress echocardiography was associated with sudden cardiac death, myocardial infarction, and the need for future coronary revascularization, and its diagnostic and predictive role was observed in ischemic heart disease and predicting future cardiac events. (Iranian Heart Journal 2023; 24(2): 69-76)