Determination of the Accuracy of Echocardiographic Parameters Mitral Inflow S/D Ratio and Tei Index to Detect Left Ventricular Dysfunction in Pediatric Patients with Mitral Regurgitation

Congenital heart diseases are one of the most common anomalies in infancy. This study was performed aimed to determine the accuracy, sensitivity and specificity of the left ventricular Tei index (TX) and the systolic to diastolic duration ratio (S/D) to detect ventricular dysfunction in pediatric pediatrics with congenital heart defect accompanied by mitral regurgitation. In this study, systolic and diastolic function of left ventricle was evaluated by TX and S/D ratio parameters in 66 children with mitral regurgitation (34 children with normal ventricular function and 32 patients with ventricular dysfunction) and the results were compared to the findings of echocardiography. Tei index>0.5 was defined as abnormal. The accuracy, sensitivity, specificity, positive and negative predictive values of S/D ratio were obtained 89.3%, 87.5%, 91%, 90% and 88.5%, respectively and for TX, 87.8%, 87.5%, 88.2%, 87.5% and 88.2%, respectively. The results of this study showed that in general, accuracy, sensitivity, specificity, predictive values, and likelihood ratios of TX are less than those of S/D ratio in patients with congenital heart defect accompanied by mitral regurgitation.