Coronary Artery-Left Ventricular Fistula with Giant Right Coronary Aneurysm: A Case Report and Literature Review

Right coronary artery-left ventricular (RCA-LV) fistula with associated giant right coronary artery aneurysm (CAA) is an extremely rare cardiac condition. This case study presents a patient with a large left ventricle (LV) and a giant right CAA with a maximal inner diameter of approximately 56.6 mm and an inner diameter of approximately 22 mm at its communication with the left ventricle. The patient underwent surgical management, involving suturing of the proximal end of the CAA and coronary artery bypass grafting (CABG). RCA-LV fistula with a giant right CAA may involve serious complications, such as thrombosis, rupture, and heart failure. Therefore, it is necessary to establish effective management strategies for this condition. Although this case is not unique, it serves as an illustrative example of the implementation of a classic surgical treatment method.