A STUDY OF THE RELATIONSHIP BETWEEN MYOCARDIAL PERFORMANCE INDEX AND LEFT VENTRICULAR END-DIASTOLIC PRESSURE IN PATIENTS WITH LEFT VENTRICULAR SYSTOLIC DYSFUNCTION

Abstract<br />INTRODUCTION: Doppler echocardiography is used to evaluate global myocardial<br />performance. An index of myocardial performance (Tei Index) can be of great prognostic<br />value in heart failure. This study was performed to assess the correlation between Tei Index<br />(TI) and left ventricular end diastolic pressure (LVEDP).<br />METHODS: The study group consisted of 38 patients. Each patient underwent<br />ventriculographic evaluation (all had EF&le;45). Eighteen patients had LVEDP&lt;15 (14 males,<br />4 females, 57&plusmn;6 years old) and 20 subjects (15 males, 5 females, 56&plusmn;7 years old) had<br />LVEDP&ge;15. Using Doppler echocardiography, TI was determined for all patients and<br />compared.<br />RESULTS: Mean TI value was significantly different between subjects with LVEDP&lt;15 and<br />those with LVEDP&lt;15 (0.55&plusmn;0.18 vs. 0.76&plusmn;0.19, P&lt;0.001, T=4.1).<br />DISCUSSION: In patients with systolic heart failure (EF&le;45), TI was significantly lower in<br />subjects with LVEDP&lt;15 compared to those with LVEDP&ge;15. Thus, TI may be useful for<br />noninvasive assessment of LVEDP in heart failure.<br /><br />Keywords &bull; Tei index &bull; Ventricular performance &bull; Heart failur