title: Prophylactic portacaval shunts.
mesh_terms: D000328:Adult; D000437:Alcoholism / Q000150:complications; D002986:Clinical Trials as Topic; D004932:Esophageal and Gastric Varices / Q000517:prevention & control*; D006471:Gastrointestinal Hemorrhage / Q000517:prevention & control*; D006801:Humans; D006975:Hypertension, Portal / Q000601:surgery*; D008103:Liver Cirrhosis / Q000601:surgery*; D008875:Middle Aged; D011167:Portacaval Shunt, Surgical; D011446:Prospective Studies