title: The pathogenesis of diarrhea after bypass of the small intestine.
abstract: Certain aspects of the pathogenesis of the diarrhea after bypass procedures of the small intestine for obesity have been evaluated. In the late postoperative period, a significant increase occurred in fecal weight and in fecal bile salt and free fatty acid output. There was a significant direct correlation between fecal weight and fecal bile salt output. There was no significant correlation between fecal weight and fecal fatty acid output. This suggests that, after bypass procedures of the small intestine, bile salts play a more significant role in the pathogenesis of diarrhea than do free fatty acids.
mesh_terms: D001647:Bile Acids and Salts / Q000032:analysis; D003967:Diarrhea / Q000209:etiology* / Q000503:physiopathology; D005227:Fatty Acids / Q000032:analysis; D005243:Feces / Q000032:analysis; D005769:Gastrointestinal Motility; D006801:Humans; D007421:Intestine, Small / Q000503:physiopathology / Q000601:surgery*; D009765:Obesity / Q000601:surgery*; D011183:Postoperative Complications
chemical_list: D001647:Bile Acids and Salts; D005227:Fatty Acids