diagnostic value of the q-t interval in acute myocardial infarction

ABSTRACT

The Q-Tc interval was studied in 55 patients with acute transmural or subendocardial infarction, definite prolongation of the Q-Tc intervals were demonstrated. The mean Q-Tc intervals were greater in subendocardial than in transmural infarction; the difference was statistically significant. The Q-T interval prolongation may possibly prove to be a useful sign in the diagnostic separation of ischaemia from actual necrosis. The possible explanations of Q-T prolongation were discussed