Abstract

A prior history of atrial fibrillation (AF) results in poorer outcomes after ST-elevation myocardial infarction (STEMI). One hypothesis is the adverse impact of AF on coronary endothelial function. Robust coronary collateralisation can provide STEMI patients with alternative myocardial perfusion, thereby improving outcomes. We investigated the influence of a prior history of AF on coronary collateralisation and microvascular function following STEMI.

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