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  Contents > Previous page > Article detail print Order
o Issue N# 3 - 2018 o

OTOLOGY

Role and importance of pH in the treatment of bacterial and mycotic otitis externa


Authors : Dispersyn G, Meyer A, Laplace C, Ramond A, Ramond-Grinberg E. (Levallois Perret)

Ref. : Rev Laryngol Otol Rhinol. 2018;139,3:55-58.

Article published in french
Downloadable PDF document french



Summary : Introduction: Healthy ear canal skin has an acidic pH. Evidence suggests that in case of otitis, ear canal skin pH becomes more alkaline and that a reacidification of the ear canal may lead to resolution of otitis externa. Objectives: Because no data are available on the pH values of ear drops currently used in the treatment of otitis in France, our study will determine if the pH of ear drops are acidic as advised by the literature or neutral or even alkaline. Methods: The pH of the 6 most commonly used topical ear drop preparations in France was measured using a Seven Compact S210 pH meter. Results: The pH values ranged from 2.4 to 6.5. Two prepara­tions out of six tested were far above pH 5 and only two prepara­tions were below pH 4. Conclusion: Although the reacidifica­tion of the ear canal may help in the treatment of otitis, only one-third of the ear drops commer­cia­lized tested contain a real strong acidic pH beneficial for the external ear canal.

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