Abstract
Recent studies suggest that the dialysis dose significantly affects survival in acute renal failure (ARF) patients and that bicarbonate dialysate improves acid-base balance during continuous renal replacement therapy (CRRT). These data inspired us to use slow continuous dialysis (SCD) in the treatment of ARF. SCD is defined by the following parameters: (a) blood flow (Q(B)) = 100 to 200 ml/min, (b) dialysate flow (Q(D)) = 100 to 300 ml/min, (c) the use of a modified hemodialysis machine with controlled ultrafiltration and online production of bicarbonate-based dialysate, and (d) continuous or extended daily treatment for 8 to 24 hours. SCD provides a urea clearance in the 70 to 80 ml/min range. Preliminary data from an ongoing clinical trial demonstrate the safety, efficiency, and simplicity of the treatment.
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