Risk of Cancer Development in the Gastric Remnant by B-II Resection

Abstract

In a long term follow up study of 2613 patients undergoing partial gastrectomy for benign gastroduodenal diseases between 1960 to 1964, the risk of cancdr development was studied. The incidence of the gastric stump cancer was evaluated in756 patients alive more than 20 years after Billroth I (B-I) gastrectomy and 299 patients after Billroth II (B-II) gastrectomy. Four cases of cancers were observed in the patients after B-II gastrectomy and two cases after B-I gastrectomy. The incidence of cancer (0.539/1000population) of male patients who had undergone B-II gastrectomy at less than 40 years old, was 4 times higher than that of B-I resected patients. Resected thirty-one cancers of gastric remnant after partial gastrectomy for benign disease were examined. Significantly more cancers(16/21) developed at the anastomotic site by B-II than by B-I (3/10) (p<0.05). Those findings suggested that the patients who had undergone B-II gastrectomy more than 20 years before had a higher cancer risk at the anastomotic site than the patients with B-I gastrectomy.