Clinical and bacteriological efficacy, and practical aspects of amikacin given once daily for severe infections

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Abstract
In a multicentre non-randomized open prospective study, 124 patients hospitalized in medical infectious disease or intensive care units, with severe community and hospital-acquired bacterial infections were treated with 15 mg/kg body weight amikacin in a once-daily dose given as a 30 min iv infusion, combined with other antibiotics. Infections were bacteriologically proven in 101 patients. The clinical responses showed 83·1% primary success and 83·9% definitive cure predominantly in intensive care patients with hospital-acquired infections and pneumonia. Bacteriological eradication was achieved in 67·3%. Bacteria associated with true failures and colonizations were predominantly Pseudomonas, Acinetobacter and Staphylococcus spp. The risk of nephrotoxicity may be decreased with such a regimen of amikacin, but no conclusions could be drawn with regard to ototoxicity. In summary, a once-daily dosing regimen of amikacin 15 mg/kg is practical and probably efficacious and safe in severely infected patients.

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