Morbid obesity has failed to respond to diet, hypnosis, behavior modification, drugs, and group therapy. Surgeons have adopted operations, which are used for other purposes, to the treatment of morbid obesity. Because weight loss was an undesirable side effect of these operations, a reorientation has been required. Such is the case of Biliroth II gastrectomy, originally introduced in 1884 and previously the mainstay of the surgical treatment of acid peptic disease, which has been adapted to the treatment of morbid obesity. When sufficient stomach was resected to prevent further ulceration, an intake deficiency was often an unwanted side effect. Furthermore, if any distal stomach was left, antral gastrin was likely to cause stomal ulceration.
Gastric bypass in morbid obesity Am J Clin Nutr. 1980 February