Validation and Simplification of a Scoring Model Derived for Prediction of Poor Coronary Collateral Circulation in Acute Non-St Elevation Myocardial Infarction

Determinants of coronary collateral circulation (CCC) in human heart are still incompletely identified. In acute non-ST elevation myocardial infarction (NSTEMI), abrupt vessel occlusion results in myocardial necrosis in the jeopardized area. Angiographic collaterals to myocardial tissue distal to an acutely occluded coronary vessel can reduce infarct size and risk for post-infarct complications as well as infarct related mortality. These prognostic implications of collateral function, makes it necessary to have a better understanding of the factors promoting collateral development in acute setting of myocardial infarction. We recently developed a risk scoring model for predicting poor collateralization in patients with NSTEMI at hospital admission