S-T interval


S-T interval

In an electrocardiogram, the interval that represents ventricular repolarization. An elevation of the S-T segment may be seen in myocardial infarction, variant angina, and ventricular aneurysms; depression of the S-T segment is seen in conditions such as coronary ischemia, left ventricular hypertrophy, and digitalis use. See: electrocardiogram for illus.; QRST complexSee also: interval