Hematoma of the Interatrial Septum with Heart Block Secondary to Dissecting Aneurysm of the Aorta

Abstract

Four patients with a hematoma of the interatrial septum secondary to acute dissecting aneurysm of the aorta are described. Hematoma of the interatrial septum presents with clinical features of acute dissecting aneurysm of the aorta and partial or complete heart block. Anatomically, the hematoma traverses the aortoatrial space to involve the A-V node and the bundle of His. Early operation is indicated.