A variety of vascular disorders can lead to high-output heart failure. A patient who has unexplained intractable heart failure should be evaluated for an occult vascular lesion.
Patient selection: high-output heart failure
Criteria for diagnosis:
(1) presence of an implicated vascular disorder (see below)
(2) exclusion of alternative explanation(s)
(3) correction of heart failure by correction of vascular disorder
Vascular disorders associated with high-output heart failure: