Le Veen's peritoneal-jugular shunt was employed in the treatment of irreducible ascites in 16 patients with cirrhosis of the liver. Intraoperative mortality was 18%. It was due to disseminated intravascular coagulopathy in 2/3 cases. Regression of ascites and renal failure was noted in all survivors. Follow-up over 6-28 months (mean 10 months) showed that 2 patients had died from sepsis and two from liver failure. Recurrence of ascites (3 cases) had been brought about by malposition or thrombosis of the venous catheter; in one subject, thrombosis extending to the vena cava superior necessitated a portal shunt. There were no instances of digestive haemorrhage attributable to rupture of oesophageal varices. Good results free from complications were noted in 7 patients (43%) and easily treatable complications in 9 (56%). There was an evident improvement over the results obtainable with conventional management. The fact that mortality is generally confined to patients in Child's group C with marked hypoprothrombinaemia suggests that such candidates should be carefully selected. This, together with technical improvements designed to reduce the incidence of intravascular coagulopathy and haemodynamic overload following the operation, would seem capable of permitting better results in the future.