一种可能的机制为瓣膜狭窄诱发 IIA 型 von Willebrand 病。[19]Vincentelli A, Susen S, Le Tourneau T, et al. Acquired von Willebrand syndrome in aortic stenosis. N Engl J Med. 2003;349:343-349.http://www.nejm.org/doi/full/10.1056/NEJMoa022831#t=articlehttp://www.ncbi.nlm.nih.gov/pubmed/012878741?tool=bestpractice.com
研究尚未发现主动脉瓣狭窄与血管发育不良之间的关联。[12]Imperiale TF, Ransohoff DF. Aortic stenosis, idiopathic gastrointestinal bleeding, and angiodysplasia: is there an association? A methodologic critique of the literature. Gastroenterology. 1988 Dec;95(6):1670-6.http://www.ncbi.nlm.nih.gov/pubmed/03053316?tool=bestpractice.com
一些病例报道显示瓣膜置换后消化道出血停止。[13]Morishima A, Marui A, Shimamoto T, et al. Successful aortic valve replacement for Heyde syndrome with confirmed hematologic recovery. Ann Thorac Surg. 2007 Jan;83(1):287-8.http://www.ncbi.nlm.nih.gov/pubmed/017184682?tool=bestpractice.com