Major variations in anatomical origin of the coronary arteries: angiographic observations in 4,250 patients without associated congenital heart disease.

In 51 (1.2%) of 4,250 patients studied by selective coronary arteriography, one or more major elements of the coronary arterial system originated from the sinuses of Valsalva in an ectopic manner. The majority of variations involved the left coronary artery. The majority of ectopic ostia were locate... View More