Acquired von Willebrand factor deficiency (aWFD) is associated with the formation of angioectasia. It has been shown that patients with overt obscure gastrointestinal bleeding (OGIB) and underlying aWFD have a marginally higher risk of rebleeding following therapeutic double balloon enteroscopy (DBE). Of more importance is the impact of aWFD in patients with occult OGIB, which is a common presentation of angioectasia.
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© 2017 Published by Elsevier Inc.