QRS-T Patterns in Multiple Precordial Leads that May Be Mistaken for Myocardial Infarction
I. Left Ventricular Hypertrophy and Dilatation
The electrocardiograms of patients in whom myocardial infarction was excluded at autopsy are presented to bring out the following features of left ventricular hypertrophy that may be mistaken for myocardial infarction: (1) QS patterns and/or abnormal RS-T elevation in leads from the right precordium; (2) abnormal Q waves, multiphasic QRS and/or cove plane inversion of the T waves in leads from the transitional zone; (3) prominent Q waves, marked RS-T depression and/or sharply inverted T waves in leads from the left axilla.
- © 1950 American Heart Association, Inc.