Cold carbon haemofiltration apparatus.

Four uraemic patients underwent haemofiltration (HF) for two months, three times a week, with an infusion of about 20L of electrolyte solution. For another two months, HF was performed with diafiltrate reinfusion after regeneration on cold carbon and ionic exchange resins. Carbon (26.8g) and resins (10g/kg b.w) were needed. The data obtained in HF and in closed-circuit HF periods were similar, but during the closed-circuit HF treatment there was better control of acid-base balance.