High-Output Heart Failure Associated with Arteriovenous Fistula, Hemangioma or Other Vascular Malformation

• a hereditary arteriovenous fistula (hepatic, renal, other)?

• an acquired arteriovenous fistula (hepatic, renal, aortic, post-traumatic, etc)?

• a giant hemangioma?

• multiple hemangiomas?

• one or more large hemangioendothelioma(s)?

• other large vascular malformation?

Is there another diagnosis that can explain the heart failure better?

Has correction of the vascular lesion corrected or significantly improved the heart failure?