Evaluation and outcomes of patients with obscure gastrointestinal bleeding
Evaluation and outcomes of patients with obscure gastrointestinal bleeding作者机构：Department of Gastroenterology and Hepatology Level 1 West Concord Repatriation General Hospital
出 版 物：《World Journal of Gastrointestinal Pathophysiology》 (世界胃肠病理生理学杂志（英文版）（电子版）)
年 卷 期：2014年第5卷第4期
页 面：479-486页
学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学]
主 题：Obscure gastrointestinal bleeding Capsuleendoscopy Double balloon enteroscopy Outcomes Anaemia
摘 要：Obscure gastrointestinal bleeding(OGIB) is defined as recurrent or persistent bleeding or presence of iron deficiency anaemia after evaluation with a negative bidirectional endoscopy. OGIB accounts for 5% of gastrointestinal bleeding and presents a diagnostic challenge. Current modalities available for the investigation of OGIB include capsule endoscopy, balloon assisted enteroscopy, spiral enteroscopy and computed tomography enterography. These modalities overcome the limitations of previous techniques. Following a negative bidirectional endoscopy, capsule endoscopy and double balloon enteroscopy remain the cornerstone of investigation in OGIB given their high diagnostic yield. Longterm outcome data in patients with OGIB is limited, but is most promising for capsule endoscopy. This article reviews the current literature and provides an overview of the clinical evaluation of patients with OGIB, available diagnostic and therapeutic modalities and longterm clinical outcomes.
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