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Korean J Gastroenterol. 2004 Feb;43(2):133-136. Korean. Case Report.
Lee TY , Han SY , Moon SH , Jang CR , Jang JS , Park MK , Lee JH , Roh MH , Shin WW , Choi SR .
Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea.

A 68-year-old woman with known severe aortic stenosis was admitted to the hospital because of hematochezia and dizziness. She had received several blood transfusions over the preceding 3 years and undergone right hemicolectomy 2 years ago for severe lower gastrointestinal bleeding. Postoperative histology revealed angiodysplasia involving the ascending colon. After the hemicolectomy, she continued to have hematochezia and anemia and required additional blood transfusions for anemia. During this admission, platelet count, activated partial-thromboplastin time, von Willebrand factor antigen, and von Willebrand factor ristocetin cofactor were normal. She had a severe deficiency of high-molecular-weight multimers of von Willebrand factor. Colonoscopy showed angiodysplasia in the transverse colon at this time. Successful coagulation of the bleeding angiodysplasia was achieved by argon plasma coagulator. No additional bleeding was observed thereafter. We report a case of Heyde's syndrome with abnormal von Willebrand factor in a patient who presented with intestinal angiodysplasia and aortic stenosis.

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