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August 1980

Diversion of Duodenal Contents: Its Effect on the Production of Experimental Gastric Cancer

Author Affiliations

From the Price Institute of Surgical Research, Department of Surgery (Drs Wieman, Max, and Voyles), and the Department of Pathology (Dr Barrows), University of Louisville School of Medicine, Ky.

Arch Surg. 1980;115(8):959-961. doi:10.1001/archsurg.1980.01380080053010

• Diversion of duodenal contents after gastroenterostomy and vagotomy did not protect 240 laboratory rats from increased risk of gastric carcinoma. They were divided into three groups of 80: group 1 received 0.9 mg of 3-methylcholanthrene injected submucosally into the gastric antrum; groups 2 and 3 had bilateral truncal vagotomy and gastroenterostomy, with carcinogen injected into the gastric submucosa near the anastomosis; group 3 also had total duodenoenteric diversion. Blind histopathologic examination of surviving rats during necropsy eight months later disclosed that cancer had developed in six of 60 (10%) group 1 rats, in 23 of 71 (33%) group 2 rats, and in seven of 27 (22%) group 3 rats. Compared with group 1, groups 2 and 3 had an increased incidence of gastric cancer but did not differ from one another in this regard.

(Arch Surg 115:959-961, 1980)