Abstract
As urea and creatinine clearances achieved by continuous arteriovenous hemofiltration tend to be low, efforts were made to increase urea and creatinine elimination by modifying the original continuous arteriovenous hemofiltration system. We investigated the urea and creatinine clearances of different continuous renal replacement therapy systems. Urea clearance achieved by spontaneous arteriovenous hemofiltration was 9.1 ml/min, suction-supported arteriovenous hemofiltration 15.3 ml/min, arteriovenous hemodiafiltration 15.4 to 19.3 ml/min, arteriovenous hemodialysis 18.9 to 22.1 ml/min. Creatinine clearances ranged between 11.1 (spontaneous arteriovenous hemofiltration) and 25.1 ml/min (arteriovenous hemodialysis). Continuous arteriovenous hemodialysis seems at present to be the ideal renal replacement therapy system to compensate azotemia in hypercatabolic patients. Its urea and creatinine clearances are high, its clinical tolerance good and it is simple and safe.
Published Version
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