Right coronary arteries that arise from the left sinus or ectopically
from the right sinus with a slit ostium can cause myocardial ischemia,
myocardial infarction, or sudden death. The surgical repair of these
anomalies has evolved toward a simpler operation that widens the orifi
ce of origin and reduces the compression of the intramural segment. We
have repaired these anomalies without mortality in 8 patients. We sum
marize our experience and the evolution of this procedure.