A giant sinus node artery fistulizing to superior vena cava presenting with steal phenomenon: An unusual case report

Congenital coronary fistulas are rare anomalies. They can be either symptomatic or asymptomatic. Management strategy for coronary fistulas differs depending on the blood flow and symptoms. Nevertheless, it should be considered a serious health problem which may result in unpleasant complications such as congestive heart failure through left-to-right shunt, myocardial ischemia through steal phenomenon, endocarditis, and aneurysmal ruptures. Herein, we present the surgical management of a young female who was referred to our clinic with exercise-induced substernal chest pain and numbness in the left upper extremity caused by a giant sinus node artery fistulizing to the superior vena cava.