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Am J Nephrol. 1983 Jan-Feb;3(1):11-7.

Controlled comparison of gentamicin and tobramycin nephrotoxicity.

Abstract

317 patients with suspected or documented infections other than cystitis were randomly assigned to receive gentamicin or tobramycin dosed according to the Sawchuk/Zaske method or a modification of the McHenry method. 196 patients completed 6 days of therapy, had serial determinations of serum creatinine and were evaluated for nephrotoxicity. Within each dosing method group those patients receiving gentamicin and tobramycin had a similar mean age, initial serum creatinine level, total dose, duration of therapy and trough serum aminoglycoside concentration. Nephrotoxicity developed in 5 of 49 (10.2%) given gentamicin via the McHenry method compared to 9 of 49 (18.4%) given tobramycin. Similarily, 4 of 50 (8.0%) given gentamicin via the Sawchuk/Zaske method developed nephrotoxicity compared to 8 of 48 (16.7%) given tobramycin. Within the Sawchuk/Zaske and the modified McHenry dosing method groups, no significant difference was noted in the incidence of nephrotoxicity associated with gentamicin and tobramycin. 34% of patients with elevated trough serum aminoglycoside concentrations developed nephrotoxicity compared to 3.7% of those with nonelevated troughs (p less than 0.0005).

PMID:
6340504
DOI:
10.1159/000166680
[Indexed for MEDLINE]

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