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Correlation between disc potency and zone size in temafloxacin activity in vitro
S Reggio1, I Bassanetti, M Ceralli
1S. Anna Hospital, Rome, Italy.
Drugs Under Experimental and Clinical Research
|January 1, 1990
Summary
This study evaluated temafloxacin disc potency, finding a direct correlation between zone dimension and antibiotic concentration. These findings are relevant for optimizing antibiotic susceptibility testing in hospitalized patients.
Area of Science:
- Microbiology
- Pharmacology
- Clinical Diagnostics
Background:
- Antibiotic resistance necessitates continuous evaluation of antimicrobial agents.
- Temafloxacin is a novel fluoroquinolone with potential clinical applications.
- Accurate susceptibility testing is crucial for effective patient treatment.
Purpose of the Study:
- To assess the relationship between temafloxacin concentration on antibiotic discs and the resulting zone diameters in microbial inhibition.
- To establish a reliable method for disc potency evaluation of temafloxacin.
- To provide data supporting the clinical utility of temafloxacin.
Main Methods:
- Multi-test disc diffusion assays were performed using various concentrations of temafloxacin.
- Zone dimensions (inhibition diameters) were measured accurately for each concentration.
- Pathogens were isolated from hospitalized patients for standardized testing.
Main Results:
- A direct, positive correlation was observed between temafloxacin disc concentration and zone dimension.
- The disc potency evaluation demonstrated predictable zone size variations with antibiotic concentration.
- Consistent results were obtained across different pathogen isolates.
Conclusions:
- The disc diffusion method is suitable for evaluating temafloxacin potency.
- Established correlations allow for standardized antibiotic susceptibility testing of temafloxacin.
- Findings support the use of temafloxacin in treating infections caused by susceptible pathogens in hospitalized individuals.