Concurrently Low Coronary Flow Reserve and Low Index of Microvascular Resistance Are Associated With Elevated Resting Coronary Flow in Patients With Chest Pain and Nonobstructive Coronary Arteries.
Massimo NardoneMary McCarthyChris I ArdernLynne E NieldOlga TolevaWarren J CantorSteven E S MinerPublished in: Circulation. Cardiovascular interventions (2022)
Low CFR/low IMR to adenosine and acetylcholine are associated with elevated resting coronary blood flow and preserved hyperemic coronary blood flow. These patients present with distinct phenotypic characteristics. Simultaneous CFR and IMR measures appear necessary to differentiate these endotypes.