A left ventricular form change of patients with old myocardial infarction assessed by echocardiography

ABSTRACT

Echocardiography was done in 104 patients with old myocardial infarction (OMI) and 55 control subjects. Authors found out that patients with OMI accompanying with left ventricular dilation (LVIDd = 50.3+/- 8.5 mm), left ventricular mass (LVM = 187.8+/-60.9 g), and left ventricular mass index (LVMI = 118.5+/-35.7 g/m2) increased compared with control subjects. The level of left ventricular dilation relates with infarct position and quite closely correlates with heart failure class (LVIDd = 39.53 + 5.87 x heart failure; r=0.629; p<0.001). In OMI group, patients accompanying with both anterior and posterior walls, the most dilation is the left ventricular. LVM increase closely correlates with the level of left ventricular dilation (LVIDd = 30.2+0.1 x LVM; r=0.78; p<0.001) and relates lightly with interventricular Septum and diastolic wall thickness (IVSd).