الفهرس 
? Acute Myocardial InfarctionOnly 14 pages are availabe for public view
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Abstract
T wave inversion in leads with ST-segment elevation after the initiation of reperfusion therapy is considered a sign of reperfusion. However, the significance of T wave inversion on presentation before the initiation of reperfusion therapy is unclear.
The current study aimed to assess whether T wave inversion on presentation can predict patency of the infarct related artery (IRA) in patients with Acute Anterior ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary interventions (PCI).
The study included 90 patients presented to the emergency department with acute anterior ST-elevation myocardial infarction.
The T wave morphology in the 2 leads with maximal ST-segment elevation on the presenting ECG were identified according to the following defenetion:
Positive T waves: T+; initial Positive deflection ≥ 0.5 mm above the isoelectric line. Biphasic T waves: T +/- ; initial positive deflection above the ST segment follows by negative deflection ≥ 0.5 mm below the isoelectric line. Negative T waves: T-; initial negative deflection≥ _0.5 mm below the isoelectric line without initial positive deflection.