Area at risk and collateral circulation in a first acute myocardial infarction with occluded culprit artery. STEMI vs non-STEMI patients

In first acute myocardial infarction with an occluded culprit artery NSTEMI patients - including those with possible posterior infarction - present smaller infarct size and higher collateral blood supply than STEMI patients in each of the 3 main culprit arteries.