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GIORNALE ITALIANO DI DERMATOLOGIA E VENEREOLOGIA

A Journal on Dermatology and Sexually Transmitted Diseases


Official Journal of the Italian Society of Dermatology and Sexually Transmitted Diseases
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Giornale Italiano di Dermatologia e Venereologia 2006 June;141(3):233-5

language: English

Head lice: ex vivo videodermatoscopy evaluation of the pediculocidal activity of two different topical products

Lacarrubba F. 1, Nardone B. 1, Milani M. 2, Botta G. 2, Micali G. 1

1 Department of Dermatology University of Catania, Catania, Italy
2 Medical Direction, Mipharm, Milan, Italy


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Aim. The aim of this study was to evaluate by videodermatoscopy the efficacy and rapidity of pediculocidal activity in 2 different products indicated in the treatment of head lice.
Methods. Ten tests on 10 adult samples of pediculus humanus capitis were performed. Head lice were taken from 3 subjects with active head lice infestation and placed in 10 Petri’s capsules. After an initial videodermatoscopy observation (of approximately 180 s duration) to evaluate the viability of the parasites, on 5 out of 10 a synergized pyrethrin thermophobic foam was applied; on the other 5 a coconut and anise oil based-spray was applied.
Results. In all performed tests with thermophobic foam product the absence of movements of the parasites within 10 s from the contact with the product was observed, while the absence of peristalsis was noted within 60 s. On the contrary, with the essential oil based-product the parasites were alive also after a continued observation of 120 min after the application of the product.
Conclusion. Our experience suggests that the videodermatoscopy is a valid researching tool to evaluate the efficacy and the time of action of topical products with pediculocidal activity.

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