Nephrol Dial Transplant (1992) 7: 848-854
© 1992 European Renal Association-European Dialysis and Transplant Association
research-article
Pharmacokinetics of ciprofloxacin and vancomycin in patients with acute renal failure treated by continuous haemodialysis
Charing Cross and Westminster Medical School Charing Cross Hospital London UK
Correspondence and offprint requests to: Correspondence and offprint requests to: Dr S. P. Davies, Department of Medicine, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, UK
To determine appropriate doses of ciprofloxacin and vancomycin for septic patients with acute renal failure (ARF) treated by continuous arteriovenous and venovenous haemodialysis, (CAVHD/CWHD), we performed pharmacokinetic studies in patients receiving these antibiotics. All patients were treated by CAVHD/CWHD using Hospal AN69S 0.43 m2 filters and Fresenius 1.5% peritoneal dialysis fluid at dialysate flow rates (Qd) of 1 and 2 1/h. Patients received ciprofloxacin 200 mg i.v. 12-hourly (n =6) or 8-hourly (n =5); vancomycin 1 g i.v. was administered to 10 patients approximately every 48 h to maintain therapeutic plasma levels. For ciprofloxacin, volume of distribution (Vdarea) was 136.5±9.81, terminal elimination half-life (t
) 6.4±0.8 h, and total body clearance (TBC) 264.3±22.9 ml/min (mean±SEM). Mean sieving coefficient (S/C) was 0.76±0.05 and filter clearances at Qd 1 and 21/h were 16.2±1.9 and 19.9± 1.1 ml/min respectively. For vancomycin, Vdarea was 60.7±5.11, t
24.7±2.6h and TBC 31.0± 4.6 ml/min. Mean S/C was 0.66±0.08 and filter clearances at Qd 1 and 21002F;h 12.1±2.0 and 16.6± 2.0 ml/min. These data suggest that patients with ARF treated by CAVHD/CWHD should be given ciprofloxacin 200 mg i.v. 812-hourly and vancomycin every 48 h.
Keywords: acute renal failure; continuous arterioven
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