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  • Title: Response to initial griseofulvin therapy in pediatric patients with tinea capitis.
    Author: Abdel-Rahman SM, Nahata MC, Powell DA.
    Journal: Ann Pharmacother; 1997 Apr; 31(4):406-10. PubMed ID: 9100999.
    Abstract:
    OBJECTIVE: To estimate the response rate to initial griseofulvin therapy in pediatric patients with tinea capitis and to determine whether clinical or epidemiologic variables differed between patients responding positively and negatively to therapy. METHODS: A review of patients' medical records with a confirmed diagnosis of tinea capitis was performed retrospectively over a 2-year period. Patients were included only if a positive dermatophyte culture was obtained and the initial prescription for griseofulvin was filled at our pharmacy. Responders were children not returning to the clinic or returning without signs or symptoms of infection. Nonresponders were those returning within 8 months with signs and symptoms of disease, requiring additional therapy. RESULTS: During July 1993-June 1995, 479 positive fungal cultures were confirmed in 474 patients, and 857 prescriptions for griseofulvin were filled for 765 patients at our institution. Of 122 evaluable patients meeting both criteria, 60.7% were classified as responders to initial prescribed therapy. The remaining 39.3% returned to the clinic within 8 months of initial therapy, requiring additional treatment. An additional 10.7% had a recurrence at a later date. There was no correlation between clinical response and dosage, age, race, or gender, although there was a trend toward longer treatment duration among responders. CONCLUSIONS: It is evident that tinea capitis persists in the urban pediatric population. Our data suggest that griseofulvin, the current drug of choice, may be ineffective in at least one-third of pediatric patients with tinea capitis.
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