Fusidic Acid Sensitivity in Methicillin-Resistant Staphylococcus aureus Strains Isolated From Hospitaland Community-Acquired Skin and Soft Tissue Infections

Year 2023, Volume: 13 Issue: 3, 265 - 270, 30.12.2023

Sevda Soydan Nurşad Çifçi Feray Ferda Şenol

Abstract

Aim: We aimed to detect the frequency of methicillin-resistant Staphylococcus aureus (MRSA) strains that were isolated from wound infections in our hospital, and then we want to evaluate the in vitro fusidic acid (FA) susceptibility rates of them to determine the place of FA in empirical treatment.
Material and Method: A total of 110 S. aureus strains, which were isolated from wound culture samples from various services and outpatients, were included in the study. The bacteria were identified and antibiogram using our microbiology laboratory’s classical methods and VITEK 2 (Biomerieux, France) system. Methicillin sensitivity was evaluated according to Clinical and Laboratory Standards Institute (CLSI) criteria, and Fusidic acid sensitivity was assessed according to European Committee on Antimicrobial Susceptibility Testing (EUCAST) criteria. The data were recorded in the IBM Statistical Package for Social Sciences (SPSS) program version 17, statistical analyses were performed, and P <0.05 was considered significant.
Results: 51 (46.4%) of S. aureus were isolated from service patients, and 59 (53.6%) were separated from outpatient clinics. The total methicillin resistance of 110 S. aureus strains was 20.9%. Methicillin resistance in outpatient clinics and services was 17.4% and 23.72%, respectively; their difference was not statistically significant (P >0.05). Sensitivity rates of FA in the outpatient clinics and services were found to be 90.2% and 94.9%, respectively, and the difference was not statistically significant (P >0.05). Methicillin-resistant Staphylococcus aureus was primarily isolated from pediatrics, orthopedics, general surgery, and otorhinolaryngology. In these units, FA sensitivities were 93.7%, 96.1%, 100%, and 100%, respectively.
Conclusion: FA should be considered an effective and safe empirical treatment option in treating soft tissue and wound infections caused by community and hospital-acquired MRSA.

Keywords

fusidic acid, wound infections, methicillin-resistant Staphylococcus aureu

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