Prognostic Impact of Coronary Microvascular Dysfunction According to Different Patterns by Invasive Physiologic Indexes in Symptomatic Patients With Intermediate Coronary Stenosis.

Among patients with suspected stable ischemic heart disease who were found to have an intermediate but functionally nonsignificant epicardial stenosis, depressed CFR was associated with an increased risk of cardiovascular death and admission for heart failure. However, elevated IMR alone with preserved CFR showed limited prognostic value in this population.