Korean J Gastrointest Endosc.  2010 Aug;41(2):79-84.

Characteristics of Lesions Misdiagnosed as Obscure Gastrointestinal Bleeding

Affiliations
  • 1Institute for Digestive Research, Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul, Korea. jokim@hosp.sch.ac.kr

Abstract

BACKGROUND/AIMS
Double balloon enteroscopy (DBE) and capsule endoscopy (CE) are useful for evaluation of obscure gastrointestinal bleeding (OGIB). However, many bleeding sources within reach of conventional upper and lower endoscopes can be missed in patients who have undergone DBE and CE for OGIB. The aim of this study was to determine the incidence and characteristics of OGIB lesions within reach of a conventional endoscope in patients undergoing DBE and CE for the indication of OGIB.
METHODS
This retrospective study included 134 patients who were evaluated for OGIB between March 2003 and May 2009 at Soonchunhyang University Hospital.
RESULTS
Of the 134 patients, 76 underwent CE, 28 patients underwent DBE, and 30 underwent both CE and DBE. The incidence of OGIB lesions within reach of a conventional upper and lower endoscopy was 9.7% (n=13) and the mean age of patients was 51 years (range: 20 to 69 years). The most commonly missed lesion was duodenal ulcer (n=8). The other missed lesions were gastric ulcer (n=2), terminal ileal ulcer (n=2) and ileocecal valve ulcer (n=1).
CONCLUSIONS
The duodenum should be observed closely in initial upper and lower endoscopy by experienced endoscopists. Performing a second EGD and ileocolonoscopy before DBE and CE may increase the diagnostic yield and improve cost-effectiveness in patients with OGIB.

Keyword

Obscure gastrointestinal bleeding; Capsule endoscopy; Double balloon enteroscopy

MeSH Terms

Capsule Endoscopy
Double-Balloon Enteroscopy
Duodenal Ulcer
Duodenum
Endoscopes
Endoscopy
Hemorrhage
Humans
Ileocecal Valve
Incidence
Retrospective Studies
Stomach Ulcer
Ulcer
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