Severely dilated right coronary artery in an infant with pulmonary atresia with intact ventricular septum (PA/IVS)
Severely dilated right coronary artery in an infant with pulmonary atresia with intact ventricular septum (PA/IVS)
A severely dilated right coronary artery was observed in a 1-week-old infant with PA/IVS undergoing modified Blalock-Thomas-Taussig shunt. In patients with PA/IVS and a small tricuspid valve, right ventricle-to-coronary fistulae may develop. If the normal origins of these coronary arteries are stenotic or atretic, the heart is dependent on right ventricular coronary filling. This patient had a tortuous and severely dilated right coronary artery, which was noted to have ostial stenosis, and an intact left coronary artery.
PA/IVS: pulmonary atresia with intact ventricular septum.
Courtesy of David M Kwiatkowski, MD.
Graphic 99865 Version 3.0
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