To the Editor.—We chose peritoneal dialysis as the treatment for this patient because we considered it safer, simpler, and more efficacious than exchange transfusion as a treatment for acute renal failure. The mortality rate associated with exchange transfusion is known, but much less information is available on the morbidity and mortality of peritoneal dialysis. A recent article (Lancet1: 64 [Jan 13] 1968) summarizes the complications when 443 intraperitoneal catheters were inserted. An abdominal viscus was perforated six times and intra-abdominal hemorrhage occurred twice. There were three deaths. The authors recommend, and we agree, that the technique of filling the abdomen via a large-bore needle prior to catheter insertion should reduce these complications.