ST-segmant re-elevation following reperfusion for acute myocardial infarction reflects reperfusion injury.

69 patients with acute myocardial infarction admitted within 5 hours of onset who had successful reperfusion therapy (TIMI grade ≥2) and maintained patency in the chronic phase (44 anterior, 25 inferior). Mean age 59.2 years, 61 male and 8 female.

Presence of ST-segment re-elevation (≥0.2 mV) immediately following successful reperfusion

Absence of ST-segment re-elevation following successful reperfusion

Chronic phase left ventricular regional wall motion (assessed by left ventriculography at mean 27.3 days)surrogate