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Echocardiographic mitral valve E point-septal separation (EPSS) has been found to be a useful hemodynamic index. The EPSS can generate a rapid quantitative idea on left ventricul (LV) function, especially when acquisition of multiple breath-hold short-axis images is difficult. In this study we aimed to compare new index (LVDD/EPSS) with EPSS to predict LV function due to anetiology.
Total 79 patients were enrolled to the study who have sistolic dysfunction. The EPSS was measured in millimeters (mm) as the minimal separation distance between the mitral valve anterior leaflet and the ventricular posterior septum in M-mod echocardiography. Also left ventricul diastolic diameter (LVDD) was measured in M-mod. We used modified Simpson's rule for calculating EF. We used correlation analysis to analyze the relation between the LVEF and EPSS and LVDD/EPSS. Patients who have atrial fibrillation and significant valve disease were excluded from the study. Etiology was divided into two groups as ischemic and non-ischemic. Statistical analysis was performed using SPSS Version 15.
At ischemic group there were significantly correlation between both EF-EPSS (r:,-768) and EF- LVDD/EPSS (r:,676) (P:0.01). Also at non-ischemic group there were significantly correlation between both EF-EPSS (r:,-722) and EF- LVDD/EPSS (r:,811) (P: 0.01). But at ischemic group EPSS and at non-ischemic group LVDD/EPSS was better to predict EF.
EPSS is a simple measurement that reflects LV function. LVDD/EPSS ratio was easy to calculate and especially at non-ischemic etiology it was powerful indirect indicator to reflect EF. We must research this new indicator at different etiologies and requires further investigation in studies with higher patient population.