Dynamics of structural and functional left ventricular parameters in patients with acute myocardial infarction

Dynamics of structural and functional left ventricular parameters was investigated in 51 patients with acute anterior myocardial infarction by means of serial (on days 1, 2, 3, 5, 7, 10 and 21 of infarction) echocardiographical study. increase of end-diastolic volume index relative to initial values became significant on 5(th)-7(th) days and continued to progress until 3(rd) week of infarction. Left ventricular cavity became dilated and attained more occurred shape predominantly at the account of increased transverse diameters. Abnormalities of left ventricular contractile and pump functions were most pronounced during first 3 days of the disease. Between 5(th) and 10(th) days improvement and stabilization of myocardial functional state took place accompanied by progression of left ventricular dilation and increase of its sphericity with lessening of degree of myocardial asynergy.