Tabriz University of Medical Sciences Journal of Cardiovascular and Thoracic Research 2008-5117 14 4 2022 12 31 The correlation between speckle-tracking echocardiography and coronary angiography in suspected coronary artery disease with normal left ventricular function 234 239 10.34172/jcvtr.2022.30520 EN Krishan Yadav https://orcid.org/0000-0003-2934-8054 Jayesh Prajapati https://orcid.org/0000-0002-6387-6822 Gaurav Singh Iva Patel https://orcid.org/0000-0002-8841-5141 Ajay Karre Pradeep Kumar Bansal Vicky Garhwal Journal Article 10.34172/jcvtr.2022.30520 2022 02 08 2022 10 09 Introduction: Our study objects to determine the diagnostic accuracy of two-dimensional speckle tracking echocardiography (2DSTE) in predicting presence and severity of coronary artery disease (CAD). Methods: Patients with stable angina pectoris with normal left ventricular function (>50%) undergoing coronary angiography were enrolled and subjected to speckle tracking echocardiography. Global longitudinal peak systolic strain was measured and correlated to the results of coronary angiography for each patient. Results: Number of male (P=0.001), diabetes (P=0.01) and smoking (P=0.01) patients were significantly higher in the CAD group compared to non-CAD patients. Global longitudinal peak systolic strain (GLPSS) was significantly (P=0.0001) lower in CAD patients in comparison to non- CAD patients. GLPSS showed significantly lower in patients with Syntax score (SS)≥22 in comparison to SS<22. Cut-off value -19 for GLPSS could be used to predict the presence of significant CAD with 80.6% sensitivity and 76.5% specificity (area under curve (AUC) -0.83, P=0.0001). The mean GLPSS value decreased as the number of diseased coronary vessels increased (P=0.0001). The optimal cut-off value of -16 GLPSS with a sensitivity of 76.7% and specificity of 83.3% [AUC 0.84, P<0.0001] was found significant to predict CAD severity. Multivariate regression of GLPSS and another risk factor for predicting significant CAD, GLPSS showed OR=1.55 (CI-1.36-1.76) P=0.0001 for predicting the presence of CAD. Conclusion: 2DSTE can be used as a non-invasive screening test in predicting presence, extent and severity of significant CAD patients with suspected stable angina pectoris.