Heyde syndrome: a common diagnosis in older patients with severe aortic stenosis.

Heyde syndrome is a triad of aortic stenosis, an acquired coagulopathy and anaemia due to bleeding from intestinal angiodysplasia. The evidence that aortic stenosis is the root cause of this coagulopathy is compelling. Resolution of anaemia usually follows aortic valve replacement. This article discusses studies linking aortic stenosis with other conditions in the triad as well as diagnosis and management of this complex pathology.