[Relationship between recovery sequence and T wave shapes].

Abstract

Eighteen-seven unipolar ECGs were simultaneously recorded from the entire thorax in 61 patients having negative T waves and 44 normal male volunteers. We measured a recovery time, which was defined as an instant of maximal derivative of the T wave as the index of local recovery. Significant correlations were observed between the recovery time and each of T wave parameters (positive T wave amplitude, negative T wave amplitude, and T integral). The T wave parameters were dependent on recovery times. Body surface recovery time distributions clearly separate anterior myocardial infarction and left ventricular hypertrophy. Appearance of the negative T waves correlates well with the presence of the area with delayed recovery time on the spatial distribution.