Angiographic diagnosis of aorto-right atrial fistula from acute dissecting aneurysm of the ascending aorta.

An uncommon complication of acute dissecting hematoma of the aorta is rupture into a right heart chamber. We report a case in which the dissection hematoma ruptured into the right atrium in addition to causing aortic valve incompetence. These features were diagnosed angiographically. Thereafter, successful surgical repair was performed.