Among 4,250 patients without congenital heart disease undergoing coronary arteriography, 1.2% (51 patients) had one or more major coronary arteries originating ectopically.
Observational (n=4,250)
Ectopic origin of coronary arteries occurs in 1.2% of patients undergoing coronary arteriography, knowledge of which is important to prevent procedural delays and interpretation errors.
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 located in the right sinus of Valsalva. Failure to recognize variations in coronary arterial origin can prolong arteriography procedures and lead to errors in interpretation of coronary artery anatomy and pathology. It is concluded from this experience that the incidence and location of major variations in coronary arterial origin are relatively predictable. The data are useful in expeding coronary arteriography procedures and thus improving patient care.
Engel et al. (1975) conducted an observational in Patients without associated congenital heart disease undergoing coronary arteriography (n=4,250). Major variations in anatomical origin of the coronary arteries was evaluated on Incidence of ectopic origin of one or more major elements of the coronary arterial system. Among 4,250 patients without congenital heart disease undergoing coronary arteriography, 1.2% (51 patients) had one or more major coronary arteries originating ectopically.