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June 1971

Congenital Levoposition of the Right Atrial AppendageIts Relevance to Balloon Septostomy

Author Affiliations

Toronto, Canada
From the departments of cardiology (Dr. Tyrrell) and radiology (Dr. Moes), Hospital for Sick Children, Toronto, Canada. Dr. Tyrrell is now with the University Hospital, Saskatoon, Saskatchewan, Canada.

Am J Dis Child. 1971;121(6):508-510. doi:10.1001/archpedi.1971.02100170090013

Levoposition of the right atrial appendage in a 12-day-old infant with complete transposition of the great arteries with an intact ventricular septum was demonstrated by angiogram. Its relevance to balloon septostomy is discussed as the abnormally placed right atrial appendage is displaced to the left and posteriorly into a position normally occupied by the left atrium.