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The Tei index is an echocardiographic index of combined systolic and diastolic function, calculated as isovolumetric relaxation time plus isovolumetric contraction time divided by ejection time. The aim of this study was to define the correlation of the Tei index with left ventricular dilatation and mortality in patients with acute myocardial infarction (AMI). A total of 77 patients (58 men, 19 women) with a mean age of 53 +/- 12 years, who had presented with an AMI in our clinic between June 2001 and February 2002 were compared with a control group of 88 healthy subjects (63 men, 25 women) with a mean age of 55 +/- 6 years. Echocardiographic evaluation was carried out within 24 hours and the third month of AMI, using a 3.5 MHz probe with pulse wave Doppler recordings by the adult cardiac mode of an Acuson C 256 echocardiograph. There were statistically significant differences between the 2 groups in all echocardiographic parameters, except mitral A wave. Thirteen patients died during the follow-up period of 3 months. The Tei index was significantly higher in the patients who died compared with those who survived (0.70 +/- 0.10 versus 0.61 +/- 0.10; P &lt; 0.001). The patients who had heart failure after AMI had a mean Tei index value of 0.76 +/- 0.27, whereas the patients who did not have heart failure after AMI had a significantly lower Tei index value of 0.60 +/- 0.32 (P &lt; 0.05). Patients were divided into 2 groups according to their Tei index. Patients with a &gt; 0.60 Tei index had significantly higher end-systolic and end-diastolic volumes compared to patients with a &lt; 0.60 Tei index (P &lt; 0.001 for both) in the acute phase of AMI. Within 3 months, patients with a Tei index &lt; 0.60 had a significant reduction in end-diastolic volumes (P &lt; 0.01), whereas the end-diastolic volumes did not change significantly in patients with an index &gt; 0.60 (P = 0.19). The Tei index is an important indicator of left ventricular dysfunction and death after AMI. A greater Tei index at the onset of AMI is associated with a higher incidence of subsequent cardiac death, CHF, and progressive LV remodeling.

Correlation of the Tei Index With Left Ventricular Dilatation and Mortality in Patients With Acute Myocardial Infarction