Tehran University of Medical Sciences The Research in Heart Yield and Translational Medicine (RHYTHM) 3115-7270 3 1 2008 01 22 39 42 Saeed Davoodi National Iranian Oil Company Central Hospital, Tehran, Iran. Yaddollah Dadashi National Iranian Oil Company Central Hospital, Tehran, Iran. Manouchehr Madani Civi National Iranian Oil Company Central Hospital, Tehran, Iran. Seyed Hesameddin Abbasi National Iranian Oil Company Central Hospital, Tehran, Iran. Amir Hossien Sami National Iranian Oil Company Central Hospital, Tehran, Iran. Kyomars Majdi National Iranian Oil Company Central Hospital, Tehran, Iran. 2015 10 03 In this paper, we describe a case of an aneurysmal circumflex artery connected to the coronary sinus through a fistula in a 40-year-old man with a two-year history of palpitation and chest pain. We discussed surgical management for patients with coronary artery fistula (CAF), particularly for asymptomatic patients with a small left-to-right shunt. https://rhythm.tums.ac.ir/index.php/jthc/article/view/83 https://rhythm.tums.ac.ir/index.php/jthc/article/download/83/81