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  • Title: The outcome assessment of double-balloon enteroscopy for diagnosing and managing patients with obscure gastrointestinal bleeding.
    Author: Hsu CM, Chiu CT, Su MY, Lin WP, Chen PC, Chen CH.
    Journal: Dig Dis Sci; 2007 Jan; 52(1):162-6. PubMed ID: 17160468.
    Abstract:
    Diagnosing and treating patients with obscure gastrointestinal bleeding is clinically challenging. Most lesions responsible for the origin of obscure gastrointestinal bleeding are located in the small bowel. Double-balloon enteroscopy is a novel method for exploring the small intestine and has significant therapeutic potential. This study evaluated the value of double-balloon enteroscopy in diagnosing and managing obscure gastrointestinal bleeding. From October 2003 to January 2006, a total of 20 patients (6 men, 14 women; mean age, 55.2 years old) with obscure gastrointestinal bleeding (18 obscure overt bleeding, 2 obscure occult bleeding) were investigated by double-balloon enteroscopy. A total of 29 procedures (15 via oral approach and 14 via rectal approach) were performed. The diagnostic yield, endoscopic therapeutic procedures, complications, and outcome were then assessed. Small bowel lesions potentially responsible for the bleeding were identified in 15 (75%) of 20 patients, including 9 angiodysplasias, 2 gastrointestinal stromal tumors (GISTs), 2 ulcers, 1 jejunal granulation polyp, and 1 Peutz-Jeghers polyposis. Endoscopic treatments including heater probe coagulation, polypectomy, and endoscopic mucosal resection were performed in 11 patients. Two patients with GISTs received surgical intervention. Two patients with angiodysplasias that endoscopic treatment failed underwent laparoscopic resections following tattooing. There were no complications and the procedures were tolerated well. Among the 15 patients who had a lesion identified with subsequent treatment, rebleeding occurred in 3 (20%) patients with angiodysplasias. Of the five patients in whom no definite lesion was detected, rebleeding developed in four (80%). For patients with an identified lesion that was further treated, the rebleeding rate was lower than for those with "persistent" obscure gastrointestinal bleeding (P=0.031). We conclude that double-balloon enteroscopy offers a safe and effective method for diagnosing and managing patients with obscure gastrointestinal bleeding.
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