Abstract

Background: Treatment guidelines and triaging in patients with acute myocardial infarction currently depends on whether there is ST elevation (STE) MI, an ECG diagnosis or non-STEMI, diagnosed by absence of STE in the presence of elevation of cardiac enzymes. Numerous studies have shown that cardiac wall motion abnormality precedes STE, hence there is an intense research into finding earlier EKG changes that will predict myocardial ischemia before the onset of wall motion abnormalities. Associations between the QT interval on an electrocardiogram (ECG) and acute myocardial infarction have been reported for over 20 years.

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