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Aminoglycosides

O Lortholary¹, M Tod, Y Cohen

¹Department of Internal Medicine, Avicenne Hospital, University of Paris-North, Bobigny, France.

The Medical Clinics of North America

|July 1, 1995

Summary

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Aminoglycoside (AG) antibiotics offer rapid bactericidal effects but carry risks. Once-daily (OD) AG therapy balances efficacy with reduced toxicity, proving beneficial in high-risk patients, but requires careful consideration for specific infections.

Area of Science:

Pharmacology
Infectious Diseases
Nephrology

Background:

Aminoglycosides (AG) are potent bactericidal antibiotics, crucial for treating severe infections.
Despite efficacy, AGs pose risks of nephrotoxicity and ototoxicity.
Combination therapy with AGs is vital for high-risk patients, enhancing efficacy and preventing resistance.

Purpose of the Study:

To evaluate the safety and efficacy of once-daily (OD) aminoglycoside (AG) therapy.
To determine the necessity of therapeutic drug monitoring for OD AG administration in specific patient populations.

Main Methods:

Review of clinical trials and therapeutic strategies involving OD AG therapy.
Analysis of pharmacokinetic and pharmacodynamic data related to AG dosing.

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Main Results:

OD AG therapy achieves high peak serum concentrations for efficacy and low trough levels to minimize toxicity.
Short-term OD AG therapy may not require dosing monitoring in patients without renal impairment and not at high risk.
This strategy has demonstrated success in clinical trials, including febrile neutropenic patients.

Conclusions:

OD AG administration is a valuable therapeutic approach, optimizing the benefit-risk ratio.
Careful patient selection is essential; OD AG therapy should be avoided when antimicrobial synergism is critical, such as in enterococcal endocarditis.