n. a surgical operation in which the whole or a part of the stomach is removed. Total gastrectomy, in which the oesophagus is joined to the jejunum, is usually performed for stomach cancer but occasionally for the Zollinger-Ellison syndrome. In partial (or subtotal) gastrectomy the upper third or half of the stomach is joined to the duodenum or small intestine (gastroenterostomy); this operation was used in severe cases of peptic ulcers before the advent of effective drug treatment and is still used to treat distal antral gastric cancers. After gastrectomy capacity for food is reduced, sometimes leading to weight loss. Other complications of gastrectomy include dumping syndrome, ulceration at the anastomosis, anaemia, and malabsorption.
Subjects: Medicine and Health.