Abstract
To assess whether better endothelial function increases the likelihood of patients with acute ST-elevation myocardial infarction (STEMI) having initially patent culprit vessels. Clinical data on the relation between endothelial function and culprit vessel patency in STEMI patients are scarce. In this prospective cohort study in 71 patients with STEMI, endothelial function was non-invasively assessed by use of the reactive hyperaemia peripheral artery tonometry (RH-PAT) method at four to six weeks after the primary percutaneous coronary intervention (PPCI). The RH-PAT index measured on average 1.90±0.58. In patients with patent culprit vessels before PPCI (n=33, 46.5%), endothelial function was significantly better than in patients with occluded vessels (n=38, 53.5%) (RH-PAT index 2.08±0.34 vs. 1.75±0.35; p<0.007). Compared to patients with normal endothelial function, the patients with severe endothelial dysfunction had a fivefold higher risk of presenting with an occluded culprit vessel (OR 5.1, 95% CI: 1.8-14.2). Logistic regression analysis revealed that this relation between endothelial function and vessel patency became even stronger after adjustment for potential confounders (adjusted OR 7.1, 95% CI: 2.1-23.6). In this series of patients with acute STEMI, better endothelial function was independently associated with a higher likelihood of presenting with an initially patent culprit vessel.
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More From: EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
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