title: Chronic gastrointestinal bleeding of obscure origin: role of small bowel enteroscopy.
abstract: The source of blood loss remains undetermined in 5% of patients with chronic gastrointestinal bleeding. A new technique of small bowel enteroscopy with a prototypic sonde-type enteroscope 9 ft in length was used to examine 60 patients referred to the hospital with gastrointestinal bleeding of obscure origin. With an average procedure time of 6 h, the enteroscope migrated to the ileum or beyond in 77% of patients. Thirty-three percent (20 of 60 patients) had the source of blood loss identified within the small bowel at enteroscopy. Small bowel enteroscopy is a useful tool in patients with chronic gastrointestinal bleeding of obscure origin and can be considered when standard invasive and noninvasive modalities have failed to diagnose a site of bleeding.
authors.affiliation: Division of Gastroenterology, Mount Sinai Medical Center (CUNY), New York.
authors.forename: B S
authors.initials: BS
authors.lastname: Lewis
authors.forename: J D
authors.initials: JD
authors.lastname: Waye
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001165:Arteriovenous Malformations / Q000150:complications / Q000175:diagnosis; D002908:Chronic Disease; D019723:Endoscopes; D005260:Female; D005336:Fiber Optic Technology; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007410:Intestinal Diseases / Q000150:complications / Q000175:diagnosis; D007421:Intestine, Small / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010528:Peristalsis