Continuous renal replacement therapy in critically ill patients with renal failure.

Continuous arterio-venous and veno-venous haemodiafiltration (CAVHD, CVVHD), combine convection and diffusing solute clearance. We performed CVVHD on critically ill patients with renal failure, of whom 15 were on inotropic support and 10 on ventilators. Satisfactory diafiltration could be performed in all the patients with adequate solute and fluid removal. The main complication was clotting of the filter. The procedure was simple, safe and could be done by staff with no special training in dialysis technology.