The association between aortic stenosis and digestive angiodysplasia has been 
described for the first time by Heyde in 1958. This entity is thus known as 
Heyde's syndrome. In many instances, the recurrent small intestinal bleeding 
originating from angiodysplasia stopped after aortic valve replacement. We 
report two cases of patients presenting with a recurrent small intestinal 
bleeding originating from digestive angiodysplasia and suffering from aortic 
stenosis. Diagnosis of both pathologies is well documented in both cases. The 
replacement of the aortic valve by a biologic prosthesis stopped the bleeding. 
Prior to aortic valve replacement, the two patients suffered severe recurrent 
blood loss from intestinal angiodysplasia. The treatment of aortic stenosis 
greatly favored both cardiac and general status. We recommend aortic valve 
replacement with a biologic prosthesis prior to intestinal resection in patients 
presenting with Heyde's syndrome. We stress on the fact that anticoagulants must 
be stopped in order to minimize the risk of further bleeding.