Giant Unruptured Sinus of Valsalva Aneurysm: An Unusual Cause of Right Heart Failure.

Aneurysm of sinus of Valsalva is a rare cardiac abnormality. Unruptured aneurysm of sinus of Valsalva is usually asymptomatic and often discovered incidentally. However, a large aneurysm can, in rare cases, cause compression of the ventricular outflow tract.