[The value of the electrocardiographic indices of left-ventricular hypertrophy for the approximation of the valvular systolic gradient in patients with aortic stenosis].

In 36 patients with mild, moderate and severe aortic stenosis, proved by cardiac catheterization, some electrocardiographic indices for left ventricular hypertrophy were compared with the value of the aortic valve peak systolic gradient. The correlative analysis showed a moderate correlation between the T wave amplitude in leads V5 and V6 of the ECG and the aortic valve gradient--r = 0.46 (p less than 0.005). On the basis of this linear correlation a regression equalization is proposed for the approximate electrocardiographic assessment of the degree of aortic stenosis.