Aminoglycoside nephrotoxicity: pathogenesis and prevention

Area of Science:

• Pharmacology
• Nephrology
• Toxicology

Background:

• Aminoglycoside antibiotics are crucial for treating severe bacterial infections.
• Nephrotoxicity is a significant and potentially increasing adverse effect of aminoglycoside therapy.
• The precise mechanisms underlying aminoglycoside-induced renal damage remain incompletely understood.

Purpose of the Study:

• To review the clinical problem of aminoglycoside nephrotoxicity.
• To elucidate the factors influencing the incidence and severity of renal toxicity.
• To discuss the clinical presentation and management considerations for aminoglycoside-induced kidney injury.

Main Methods:

• Review of existing literature on aminoglycoside nephrotoxicity.
• Analysis of factors contributing to renal dysfunction.
• Correlation of renal tissue concentrations with toxicity levels.

Main Results:

• Aminoglycosides impair multiple nephron functions, including filtration, reabsorption, and concentration.
• Renal toxicity risk is elevated in patients with volume depletion, advanced age, pre-existing renal dysfunction, and concurrent exposure to other nephrotoxins.
• Nephrotoxicity may manifest after antibiotic course completion, with subclinical effects potentially occurring in all patients.

Conclusions:

• Aminoglycoside nephrotoxicity is a serious clinical concern with multifactorial causes.
• Understanding risk factors and monitoring renal function are critical for safe aminoglycoside use.
• Subclinical renal effects are common, highlighting the need for vigilant patient assessment.