Diagnosis of Obscure Gastrointestinal Bleeding
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Obscure gastrointestinal bleeding (OGIB) is defined as gastrointestinal bleeding from a source that cannot be identified on upper orlower gastrointestinal endoscopy. OGIB is considered an important indication for capsule endoscopy (CE). CE is particularly useful forthe detection of vascular and small ulcerative lesions, conditions frequently associated with OGIB, particularly in Western countries. On the other hand, balloon enteroscopy (BE) can facilitate the diagnosis of lesions presenting with minimal changes of the mucosalsurface, such as submucosal tumors, and can be used not only for diagnosis, but also for treatment, including endoscopic hemostasis. In other words, the complementary use of both CE and BE enables OGIB to be more efficiently diagnosed and treated. However,rebleeding can occur even in patients with negative results of CE, and such patients require repeat CE or BE. It is essential to effectivelyuse both CE and BE based on a thorough understanding of the strong points and weak points of these procedures. Further advancesand developments in virtual endoscopy incorporating computed tomography and magnetic resonance imaging are expected in thefuture.
Abstract
Obscure gastrointestinal bleeding (OGIB) is defined as gastrointestinal bleeding from a source that cannot be identified on upper orlower gastrointestinal endoscopy. OGIB is considered an important indication for capsule endoscopy (CE). CE is particularly useful forthe detection of vascular and small ulcerative lesions, conditions frequently associated with OGIB, particularly in Western countries. On the other hand, balloon enteroscopy (BE) can facilitate the diagnosis of lesions presenting with minimal changes of the mucosalsurface, such as submucosal tumors, and can be used not only for diagnosis, but also for treatment, including endoscopic hemostasis. In other words, the complementary use of both CE and BE enables OGIB to be more efficiently diagnosed and treated. However,rebleeding can occur even in patients with negative results of CE, and such patients require repeat CE or BE. It is essential to effectivelyuse both CE and BE based on a thorough understanding of the strong points and weak points of these procedures. Further advancesand developments in virtual endoscopy incorporating computed tomography and magnetic resonance imaging are expected in thefuture.
참고문헌 (14)
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