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Related Experiment Videos

[A study on the disc sensitivity test for cefpirome].

Y Kanazawa1, H Sekine, T Kuramata

  • 1Department of Internal Medicine, Niitsu Medical Center Hospital.

The Japanese Journal of Antibiotics
|December 1, 1991
PubMed
Summary
This summary is machine-generated.

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The single-disc assay accurately predicts cefpirome (CPR) susceptibility across various incubation times. This method correlates well with the standard agar dilution test, offering a reliable alternative for determining bacterial susceptibility to CPR.

Area of Science:

  • Microbiology
  • Clinical Pharmacy
  • Antimicrobial Susceptibility Testing

Background:

  • Cefpirome (CPR) is a crucial cephalosporin antibiotic.
  • Accurate susceptibility testing is vital for effective antimicrobial therapy.
  • Evaluating rapid and conventional methods for CPR susceptibility is necessary.

Purpose of the Study:

  • To assess the correlation between the single-disc diffusion method and the agar dilution method for cefpirome (CPR) susceptibility testing.
  • To validate the applicability of the single-disc assay under different incubation conditions (conventional, delayed, and rapid).

Main Methods:

  • Tested 232 bacterial strains from 40 groups against cefpirome (CPR).
  • Employed both 2-fold agar dilution and single-disc diffusion methods.

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  • Analyzed results from overnight (16h), delayed (24h), and rapid (3-6h) incubation assays.

    • Main Results:

    • A significant correlation was observed between MICs from agar dilution and inhibition zone diameters from the disc assay.
    • Regression equations were established for different incubation times, demonstrating the disc assay's predictive power.
    • The study confirmed the single-disc assay's applicability for CPR susceptibility testing across various time points.

    Conclusions:

    • The single-disc diffusion method is a reliable and applicable tool for determining bacterial susceptibility to cefpirome (CPR).
    • This method provides accurate estimations of minimum inhibitory concentrations (MICs) comparable to the agar dilution method.
    • The findings support the use of the single-disc assay for rapid and conventional cefpirome susceptibility testing.