Prevalence of coronary occlusion and outcome of an immediate invasive strategy in suspected acute myocardial infarction with and without ST-segment evaluation

The prevalence of flow-limiting coronary lesions at the time of presentation in patients with non-ST-segment elevation myocardial infarction is unknown. Because rational reperfusion strategies depend on early, accurate identification of coronary flow limitation, Koyama et al. performed coronary angiography at the time of presentation of patients with suspected NSTEMI.