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In vitro susceptibility of nosocomial isolates against a new aminoglycoside isepamicin

A Kapil1, R Bali, B K Das

  • 1Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India.

The Indian Journal of Medical Research
|September 14, 2011
PubMed
Abstract

Insights

Isepamicin, a new aminoglycoside, demonstrated superior in vitro activity against nosocomial isolates compared to other tested aminoglycosides. It offers a promising alternative for multidrug-resistant infections where amikacin resistance is a growing concern.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pharmacology

Background:

  • Isepamicin is a novel aminoglycoside antibiotic.
  • It exhibits stability against aminoglycoside-modifying enzymes, unlike some existing drugs.
  • This study evaluated its efficacy against contemporary nosocomial pathogens.

Purpose of the Study:

  • To assess the in vitro activity of isepamicin against clinical isolates.
  • To compare isepamicin's efficacy with other commonly used aminoglycosides.
  • To determine isepamicin's potential as an alternative treatment for multidrug-resistant infections.

Main Methods:

  • 251 clinical isolates were tested, including Gram-negative and Gram-positive bacteria.
  • Minimum Inhibitory Concentrations (MICs) were determined for isepamicin, amikacin, gentamicin, netilmicin, and tobramycin.
  • Standard NCCLS guidelines were followed for susceptibility testing.

Main Results:

  • Isepamicin showed higher sensitivity rates (153 isolates) compared to amikacin (95 isolates).
  • The new aminoglycoside demonstrated superior in vitro activity against the majority of tested nosocomial isolates.
  • Specific activity against resistant strains of Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa was noted.

Conclusions:

  • Isepamicin presents a viable alternative for treating multidrug-resistant nosocomial infections.
  • Its effectiveness is particularly relevant in healthcare settings experiencing emerging amikacin resistance.
  • Further clinical studies are warranted to confirm its therapeutic role.

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