Thorac Cardiovasc Surg 1999; 47(2): 127-128
DOI: 10.1055/s-2007-1013125
Case Reports

© Georg Thieme Verlag Stuttgart · New York

Left-Ventricular Inflow Obstruction Due To a Dilated Coronary Sinus Mimicking Cor Triatriatum

A. Benatar, H. Demanet, F. E. Deuvaert
  • Department of Paediatric Cardiology and Cardiothoracic Surgery, Academic Hospital, Free University of Brussels, Brussels, Belgium
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Publication History


Publication Date:
19 March 2008 (online)


Persistence of the left superior vena cava with drainage to the coronary sinus is a common congenital anomaly. We report an infant with such a malformation associated with marked enlargement of the coronary sinus, which produced partial supramitral obstruction and consequently impairment to the left-ventricular inflow. The patient presented with cardiac failure in infancy and features mimicking cor triatriatum. Surgical relief of the supramitral obstruction resulted in immediate reversal of the pulmonary hypertension, with clinica! improvement. This rare entity, only once previously reported, is an unusual cause of pulmonary hypertension in infancy.