High Risk Reoperation Reveals an Anomalous Right Coronary Artery from the Pulmonary Artery.

This case describes a patient with complex congenital heart defects and a symptomatic undiagnosed anomalous right coronary artery from the pulmonary artery (ARCAPA) that led to progressive right ventricular failure. Clinical deterioration led to a decision for a high-risk corrective reoperation, which finally established the presence of an ARCAPA after initial diagnostic challenges.