Impact of persistent endothelial dysfunction in an infarct-related coronary artery on future major adverse cardiovascular event occurrence in STEMI survivors.

Heart and Vessels
Takeo HorikoshiK Kugiyama

Abstract

Although coronary endothelial vasomotor dysfunction predicts future coronary events, few human studies have shown the relationship between persistent endothelial vasomotor dysfunction and major adverse cardiovascular events (MACE) using serial assessments in the same coronary artery. This study examined whether persistent endothelial vasomotor dysfunction is related to MACE occurrence in the infarct-related coronary artery (IRA) of ST-segment elevation myocardial infarction (STEMI) survivors using serial assessments of the coronary vasomotor response to acetylcholine (ACh). This study included 169 consecutive patients with a first acute STEMI due to left anterior descending coronary artery (LAD) occlusion and successful reperfusion therapy with percutaneous coronary intervention. Vasomotor response to ACh in the LAD was measured within 2 weeks of acute myocardial infarction (AMI) (first test) and repeated 6 months (second test) after AMI under optimal anti-atherosclerotic therapy. MACE was defined as the composite of all-cause death, non-fatal MI, angina recurrence requiring percutaneous intervention or surgical bypass, and hospitalization for heart failure. We followed up 126 patients for a period of ≤ 60 months until MACE occ...Continue Reading

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