Prevalence of otomycosis in Constantine, Algeria: A cross-sectional study of two months
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Otomycosis, Antifungal, Filamentous Fungi, Yeast Fungi, Candida, Aspergillus, Fungal Susceptibility, Fungal Otitis
Abstract
Otomycosis is a fungal infection of the external auditory canal. Over a two-month period 34 ear samples were analyzed in mycology laboratory at the Military Hospital Cdt Abdelali Benbaatouche, of Constantine, Algeria.
Our study revealed that the positivity rate of otomycosis is 59%, with a male predominance (79%). The age group with the highest prevalence of otomycosis was the 35-49 years-old.
The occurrence of otomycosis was statistically more common in patients using cleaning cotton bud (42.9%). The left ears were the most affected (57%). Otalgia was the most common presenting symptom (35.7%).
Mycological study revealed yeasts are the most dominant (57%) compared to filamentous fungi (43%). The predominant species was A. niger (43%), and four Candida genus species were found, C. albicans (22%), C. parapsilosis and C. dubliniensis with isolation percentage of 14% respectively, followed by C. tropicalis (7%).
- dubliniensis and C. albicans were resistant to amphotericin B, griseofulvin, and nystatin. However, they were susceptible to ketoconazole, clotrimazole, miconazole, and econazole.
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