Özet:

Background: Tinea pedis is a dermatophyte infection of the feet, especially the toes and soles of the feet. The clinical features of tinea pedis consists of four forms. They are interdigitalis, chronic hyperkeratotic, vesicobullous, acute ulcerative or combination. Tinea pedis mainly interdigitalis form often involved bacterial superinfection, initially Gram-positive bacteria, but Gram-negative bacteria may also be involved. In a state of severe infection, the fungus is getting hard to find, otherwise the bacteria were easier to find, so it is necessary to do  fungal and bacterial culture with antibiotic sensitivity tests. Objective: To determine dermatophyte species and bacterial superinfection in tinea pedis at H.Adam Malik General Hospital Medan. Methods: This study is a descriptive observational with cross sectional design. The results of the study are presented in the form of frequency distribution table. These research involved 45 subjects with tinea pedis who met the inclusion and exclusion criteria. We conducted anamnesis, dermatologic examination and collection of samples that were skin scrapings and smears on the lesion. The samples then examined on microscopic directly by using KOH. When KOH result was positive, it followed by fungal and bacterial culture. Results: The number of subjects who suffer from tinea pedis is not much different between men (48.9%) and women (51.1%).The highest prevalence was in age group 37-46 years (28,9%), mostly graduated from elementary school (40%) and mostly housekeepers (22.5%),  with the most prevalence type was interdigitale by 40 cases (88.9%). Dermatophytes T. mentagrophytes were most found by 44.4%, followed by T. rubrum, E. floccosum and T. violaceum. Bacterial superinfection were mostly involved S.aureus by 30,8%, but B. subtilis, S.epidermidis, K.oxytoca, K.pneumoniae, E. coli, P. vulgaris were also found. Conclusion: Dermatophytes T. mentagrophytes were most found followed by T. rubrum. Bacterial superinfection S.aureus were mostly involved.

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