Cor triatriatum overview
Cor triatriatum Microchapters |
Diagnosis |
---|
Treatment |
Cor triatriatum overview On the Web |
American Roentgen Ray Society Images of Cor triatriatum overview |
Risk calculators and risk factors for Cor triatriatum overview |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editors-In-Chief: Priyamvada Singh, M.B.B.S. [2]; Cafer Zorkun, M.D., Ph.D. [3]; Keri Shafer, M.D. [4]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [5]
Overview
Cor triatriatum is a rare congenital heart defect where a fibromuscular septum subdivides the left atrium into two chambers. Associated cardiovascular malformations are common and include atrial septal defect and patent ductus arteriosus. The proximal or accessory chamber lies posteriorly, and usually receives blood from each of the pulmonary veins. The distal or true left atrial chamber lies anterior, connects to the left atrial appendage, and empties into the left ventricle through the mitral valve. The two atrial chambers communicate through an opening in the membrane which divides the two chambers. This opening may be single and stenotic, fenestrated, and either small or large. [1]