Anomalous origin of right coronary artery associated with hypertrophic obstructive cardiomyopathy.

A 29-year-old man with anginal chest pain and recurrent syncopal attacks was observed with invasive and noninvasive cardiodiagnostic techniques, which disclosed an anomalous origin of right coronary artery from the left coronary cusp and hypertrophic obstructive cardiomyopathy. The authors report a very rare coexistence of these 2 clinical entities, both of which are well known to independently increase the likelihood of sudden cardiac death under strenuous physical stress.