A case report of multiple left anterior descending coronary artery-left ventricular microfistulae

Coronary arterial microfistulae are abnormal connections between one or multiple coronary arteries and any cardiac chamber. The frequency of this rare congenital anomaly is not known exactly, because at least 75% of cases may be asymptomatic. The diagnosis of the microfistulae is based on coronary angiography.