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Antimicrob Agents Chemother. 1977 February; 11(2): 214-218
Copyright © 1977 American Society for Microbiology. All Rights Reserved.

Pharmacokinetics of Amikacin During Hemodialysis and Peritoneal Dialysis

Department of Clinical Bacteriology, Clinical Pharmacology Research Unit, Medical Department P, Division of Nephrology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark

ABSTRACT

The pharmacokinetics of amikacin were examined in six bilaterally nephrectomized patients undergoing hemodialysis and in four patients with a minimal residual renal function undergoing peritoneal dialysis. The mean elimination half-life before the dialysis was 86.5 h in the anephric patients and 44.3 h in the patients with minimal residual kidney function. The results from the anephric patients suggest that some extrarenal elimination of amikacin may occur. The mean volume of distribution was about 25% of the total body weight. This is in accordance with values reported from subjects with normal renal function. During hemodialysis the half-life decreased to less than 10% (5.6 h) of the pretreatment value. The effectiveness of peritoneal dialysis was less as the half-life decreased to only about 30% (17.9 h) of the pretreatment value. During the dialyses a significant correlation between the half-life of amikacin and the decrease in blood urea and serum creatinine was demonstrated. The pharmacokinetic data were used to make dosage regimen recommendations for the treatment of patients undergoing intermittent hemodialysis or peritoneal dialysis.