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    In vitro antifungal susceptibility of the dermatophytes: a single center study from Eastern Black Sea Region of Turkey
    (Verduci Editore s.r.l, 2024) Oğuz, I.D.; Direkel, Ş.; Akşan, B.; Kulakli, S.; Aksoy, S.
    – OBJECTIVE: A large number of patients applying to the dermatology clinics are affected by fungal diseases, and a significant portion of which are superficial fungal infections. Dermatophyte infections are a notable public health concern and frequently encountered in clinical practice. Dermatophytosis not only compromises the quality of life but also predisposes individuals to various comorbidities due to its role as a gateway for secondary bacterial agents. This study aims to determine the species distribution of dermatophytes prevalent and assess their susceptibility to antifungal drugs. PATIENTS AND METHODS: Skin, nail, and hair samples were obtained from patients with a clinical diagnosis of dermatophytosis. Samples were all cultured to isolate and identify the species. In vitro liquid microdilution tests were conducted to assess the susceptibility of the isolated strains against terbinafine, fluconazole, griseofulvin, and butenafine. RESULTS: A total of 353 samples were obtained from the hair, skin, and nail lesions of 326 patients. Dermatophyte was isolated in 71 of the samples (20.1%). The cultured dermatophyte subtypes included Trichophyton rubrum (13.8% in 49 samples), Microsporum audouini (5.7% in 20 samples), and Trichophyton mentagrophytes (0.6% in 2 samples). Antifungal susceptibility testing revealed that terbinafine was the most effective antifungal drug against all dermatophyte species, while fluconazole exhibited the highest resistance. CONCLUSIONS: The most common dermatophytosis agent in our region is T. rubrum. The least antifungal resistance was found against terbinafine. Conducting antifungal susceptibility tests is crucial for selecting effective treatment regimens and early detection of resistance development. © 2024 Verduci Editore s.r.l. All rights reserved.