Physiological and clinical relevance of anomalous right coronary artery originating from left sinus of Valsalva in adults

ObjectiveTo examine physiological and clinical relevance of an anomalous right coronary artery originating from left sinus of Valsalva (right ACAOS) with interarterial course in adults.Methods and resultsFor physiological assessment, fractional flow reserve (FFR) during dobutamine challenge was measured in 37 consecutive adult patients with lone right ACAOS with interarterial course. At baseline, mean FFR was 0.91±0.06, declining to 0.89±0.06 upon dobutamine infusion (p