Usefulness of abnormalities of repolarization in the electrocardiographic diagnosis of healed myocardial infarction

Robert A. Warner, Norma E. Hill, Thomas Lynch

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

The authors evaluated the ability of criteria involving abnormalities of repolarization to diagnose healed myocardial infarction (MI). They studied the Q, R, S, and T waves and the ST-segments of the electrocardiograms (ECGs) of 60 angiographic-normal patients, 63 patients with angiographic evidence of healed inferior MI, and 33 patients with angiographic evidence of anterior MI. The best individual criteria involving repolarization were T wave amplitude ≤0.4 mm in lead II for inferior MI (specificity, 93%: sensitivity, 67%) and T wave amplitude >2.4 mm for anterior MI (specificity, 100%: sensitivity, 27%). These T wave criteria enhanced the diagnostic performances of otherwise marginal QRS criteria for both inferior and anterior MI. The authors conclude that ECG criteria that involve abnormalities of the T waves are useful for diagnosing healed MI.

Original languageEnglish (US)
Pages (from-to)S93-S97
JournalJournal of Electrocardiology
Volume21
Issue numberSUPPL.
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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