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Analysis of the factors that affect the diagnostic yield of capsule endoscopy in patients with obscure gastrointestinal bleeding

Authors
Lee B.J.Chun H.J.Koo J.S.Keum B.Park S.H.Kim R.Kwon Y.D.Kim Y.S.Jean Y.T.Lee H.S.Um S.H.Lee S.W.Choi J.H.Kim C.D.Ryu H.S.
Issue Date
Feb-2007
Keywords
Capsule endoscopy; Obscure gastrointestinal bleeding; Diagnostic yield
Citation
The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi, v.49, no.2, pp.79 - 84
Indexed
SCOPUS
KCI
Journal Title
The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi
Volume
49
Number
2
Start Page
79
End Page
84
URI
https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/18338
ISSN
1598-9992
Abstract
BACKGROUND/AIMS: Capsule endoscopy (CE) has become a valuable modality for the detection of small bowel lesions. The usefulness of CE for obscure gastrointestinal (GI) bleeding has been established with an overall diagnostic yield of 60%. It is unknown whether CE is of equal value in all the patients or of greater benefit in selected groups in Korea. We evaluated the factors that affect the diagnostic yields of CE in patients with obscure GI bleeding. METHODS: CE was performed in 126 consecutive patients [74 men and 52 women mean age 52.5 years (25-75 yrs), 23 with active bleeding] with obscure GI bleeding between September 2002 and July 2004. Patients were divided into two groups: those with documented bleeding lesions and those with non specific CE findings. We analyzed the clinical characteristics and other parameters that influenced the diagnostic yields of CE. RESULTS: A definite or probable cause for obscure GI bleeding was found in 69% (80/116) of the patients. NSAID induced ulcer (16.4%) and angiodysplasia (12.1%) were the most common diagnoses. In patients with active bleeding, the diagnostic yield was significantly greater than that of the patients with occult bleeding (80% vs. 68.3%, p<0.05). However, there was no significant difference in parameters between patients with abnormal CE and those with normal CE in respect to gender, age, previous bleeding history, need for transfusion, cecum imaging, and bowel preparation. CONCLUSIONS: The diagnostic yield of CE in patients with obscure GI bleeding is 69%. It is significantly higher in patients with active bleeding.
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2. Clinical Science > Department of Internal Medicine > 1. Journal Articles
5. Others > Others(Medicine) > 1. Journal Articles
2. Clinical Science > Department of Gastroenterology and Hepatology > 1. Journal Articles

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Lee, Sang Woo
안산병원 (Department of Gastroenterology and Hepatology, Ansan Hospital)
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