Percutaneous transcatheter device closure of coronary arteriovenous fistula through persistent left superior vena cava

Congenital coronary artery fistula is a rare malformation that may involve any or all coronary artery branches and any cardiac chamber. Elective closure of coronary artery fistula by surgery or percutaneous transcatheter technique is generally accepted in the presence of symptoms. Controversies exist in the management of asymptomatic patients. We report a case of successful percutaneous transcatheter device closure of an aneurysmally dilated coronary fistula, originating from the circumflex artery and draining into the coronary sinus, through the persistent left superior vena cava. Persistent left superior vena cava facilitated the easier closure of the fistula, with short procedural and fluoroscopy times.