ARYA Atherosclerosis1320101218A STUDY OF THE RELATIONSHIP BETWEEN MYOCARDIAL PERFORMANCE INDEX AND LEFT VENTRICULAR END-DIASTOLIC PRESSURE IN PATIENTS WITH LEFT VENTRICULAR SYSTOLIC DYSFUNCTION175175ENMohammad RezaKhaledianMD. School of Medicine, Shahid Beheshti University. Tehran.. f.radandish@gmail.comJamshidNajafian20101218AbstractINTRODUCTION: Doppler echocardiography is used to evaluate global myocardialperformance. An index of myocardial performance (Tei Index) can be of great prognosticvalue in heart failure. This study was performed to assess the correlation between Tei Index(TI) and left ventricular end diastolic pressure (LVEDP).METHODS: The study group consisted of 38 patients. Each patient underwentventriculographic evaluation (all had EF≤45). Eighteen patients had LVEDP<15 (14 males,4 females, 57±6 years old) and 20 subjects (15 males, 5 females, 56±7 years old) hadLVEDP≥15. Using Doppler echocardiography, TI was determined for all patients andcompared.RESULTS: Mean TI value was significantly different between subjects with LVEDP<15 andthose with LVEDP<15 (0.55±0.18 vs. 0.76±0.19, P<0.001, T=4.1).DISCUSSION: In patients with systolic heart failure (EF≤45), TI was significantly lower insubjects with LVEDP<15 compared to those with LVEDP≥15. Thus, TI may be useful fornoninvasive assessment of LVEDP in heart failure.Keywords • Tei index • Ventricular performance • Heart failure