Materials and methods
A total of 13 patients underwent surgical treatment for CAFs in our hospital from 2008 to 2019. There were five men (38%), and the mean age was 67.3 years (45–81 years). The CAF was assessed by preoperative coronary artery computed tomography (CT). Coronary angiography (CAG) was performed in 11 patients (85%), and six patients (46%) underwent right heart catheterization. This study was approved by the Ethical Committee in Kokura Memorial Hospital (ID: 20061501, date 2020/06/05). Written informed consent was obtained from the patients for publication of this case report and accompanying images.