Prévalence des dermatophyties des pieds chez le sujet sain - 04/03/08
N. Contet-Audonneau [1],
A. Davril [2],
B. Hanesse [3],
C. Kuntz [4],
J.L. Schmutz [2],
G. Percebois [1]
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Prevalence of dermatophytosis of the foot in a healthy population. Results of a survey in a preventive medical center |
Dermatophytosis ( Tinea pedis and onychomycosis) are very common cutaneous diseases. In order to appreciate the prevalence of these infectious diseases in a healthy population, a study based on a survey of results obtained in a Preventive Medical Center, was carried out from November 1994 to November 1995, on 515 patients (169 families) aged from 4 to 72 years.
A questionnaire based on the principal risk factors was elaborated (shoe types, frequency of swimming bath attendance, participation in group sports). Then, a cutaneous examination of both feet was performed followed by a systematic collection of interdigital skin samples with a swab on all subjects. Cultures were made on Sabouraud medium.
Although dermatophytes were the principal fungi we were investigating, all the species isolated in culture were identified (with or without clinical lesions). The presence of bacteria was notified.
Fifty fourth dermatophytes were isolated in 41 patients, the frequency of dermatophyte infections of the global population was 7,95 %.
Among the 41 patients with a dermatophyte, 11 did not present any lesions. Most frequently the dermatophyte was Trichophyton mentagrophytes var. interdigitale variety, in younger patients belonging to the 10-19 age group. The frequency of healthy carriers is 2.13 % in the total population and 3.4 % in the population without lesions.
The rate of isolation of dermatophytes from Tinea pedis was 5 %, those of ungueal dermatophytes was 1.36 %. Sole dermatophytosis represented 1.94 % of this population.
Contagiosity was not obvious in this study, but susceptibility to dermatophytes within the family was obvious.
Among risk factors only heavy work shoes made a statistical difference, increasing fungal foot infection significantly. Also, there is correlation between clinical signs (maceration, fissuration and desquamation between toes) and the isolation of fungal species on the feet.
Mots clés : Mycose , Pied d'athlète , Trichophyton mentagrophytes var. interdigitale , Trichophyton rubrum , Epidermophyton floccosum , Dermatophytes , Épidémiologie
Keywords:
Mycosis
,
Tinea pedis
,
Trichophyton mentagrophytes var. interdigitale
,
Trichophyton rubrum
,
Epidermophyton floccosum
,
Dermatophytes
,
Epidemiology
Esquema
© 2001 Elsevier Masson SAS. Tous droits réservés.
Vol 11 - N° 3
P. 135-141 - septembre 2001 Regresar al númeroBienvenido a EM-consulte, la referencia de los profesionales de la salud.
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