“…This is in contrast to the treatment of appendage aneurysms, which can typically be amputated without circulatory support, especially in patients with isolated aneurysmal dilatation of the left atrial appendage or a narrow‐necked aneurysm of the left atrial wall . In reported cases of appendage aneurysm, various successful approaches to aneurysmectomy have been described, including median sternotomy, left thoracotomy, and minimally invasive endoscopic resection, with or without CPB . Nevertheless, we believe that a median sternotomy with CPB is a better approach, especially if the aneurysm is torn or ruptured or if the base of the resection is difficult to expose or manage.…”