Fistulae ligation and left main artery ligation for a bilateral giant coronary arterial fistulae-related aneurysm

Abstract Bilateral congenital coronary artery fistulae complicated with a giant coronary artery aneurysm is a very rare condition. A coronary artery aneurysm is a coronary artery dilatation that exceeds the diameter of normal adjacent segments or the diameter of the patient’s largest coronary vessel by 1.5 times. The complications associated with a coronary artery aneurysm include thrombosis, embolization, rupture, vasospasm, congestive heart failure and infectious endocarditis. We report on a 63-year-old woman presenting with severe heart failure related to bilateral coronary artery fistulae. A giant coronary aneurysm was noted in the right coronary artery, and a tortuous coronary artery fistula was noted in the left coronary artery. Symptoms were relieved after surgical intervention for bilateral coronary artery fistulae.