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Double-balloon enteroscopy (DBE) in patients presenting with obscure gastrointestinal bleeding (OGIB).

BACKGROUND AND STUDY AIMS: Obscure gastrointestinal bleeding (OGIB) is defined as bleeding of unknown origin that persists or recurs after an initial negative investigation. Identifying the source of OGIB represents a diagnostic challenge that is frequently focused on visualizing the small intestine. Conventional diagnostic methods, such as push enteroscopy, small-bowel follow-through, radionuclide scanning, and angiography, each exhibit inherent limitations. Double balloon enteroscopy (DBE) was designed specifically to evaluate the entire small bowel. DBE allows for better visualization, biopsy of the identified lesions and application of therapeutic techniques. This study sought to assess the role of DBE in the diagnosis and management of patients with OGIB.

PATIENTS AND METHODS: This prospective study was conducted to analyse data from 31 patients presenting with OGIB referred for DBE in the Endoscopy Unit at the Internal Medicine Department of the Faculty of Medicine, Cairo University.

RESULTS: Five patients had lesions in locations other than the small intestine that accounted for GI bleeding. Thus, the potential source of OGIB was defined as the small intestine in 18 of 26 patients (69.2%), and negative DBE findings were noted in eight patients (30.8%). Major findings included small intestinal tumours in eight patients, vascular bleeding lesions in 8 patients and ulcerations in 2 patients. Endoscopic haemostasis was performed in eight patients with vascular lesions. The three patients with Petuz-Jegher syndrome underwent polypectomy of their major polyps. Patients with gastrointestinal tumours were referred for surgery.

CONCLUSION: DBE is an excellent endoscopic procedure that has a relatively high diagnostic and therapeutic yield. The procedure is feasible and exhibits a high safety profile with a low complication rate when performed by an experienced endoscopist.

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