Summary1.Splenectomy, long recommended as the causal treatment of Banti Svn- drome, yields disappointing results. It remains indicated only in cases of thrombosis of the splenic vein and in the rare cases of«Banti disease».2.Porto-caval shunt is the only rational treatment of Banti Syndrome due to portal obstruction. As portal vein is usually thrombosed spleno-renal anastomosis will be most often used. It yields better results than those obtained by direct approach on oesophagal varicose veins (ligature or cardio-oesopha- gectomy).3.Direct porto-caval anastomosis is presently the best available treatment of hemorrhages due to portal hypertension in liver cirrhosis. It does not influence cirrhotic ascitis in which portal hypertension seems less involved than imbalances of water and salt metabolism.