Answer to Question #262635 in Microbiology for Ramcy

Question #262635

Mycotickeretis, diagnosis, history, control and treatment

Expert's answer

Objective: To diagnose the mycotic otitis media correctly and to explore the most adequate treatment for the disease.

Method: Thirty-six inpatients (39 ears) with mycotic otitis media in Nanjing Drum Tower Hospital from Jan. 2003 to Dec. 2007 were analyzed retrospectively. Morphous of the fungi, the methods and efficacies of the treatment were analyzed respectively.

Result: According to the fungal cultures, 27 ears were induced by mold fungus and 12 ears were induced by budding fungus. Among these 36 patients (39 ears), myringoplasty accompanied local antifungal cream were applied in one ear, mastoidectomy with canal wall down and/or tympanoplasty accompanied with oral antifungal medication were administrated in 35 ears, only oral antifungal drugs were used in 3 ears (the control ears of the bilateral mycotic otitis media, which was not treated by surgery). All of the patients were followed up for 3 to 36 months, otorrhea occurred in the patients who refused to oral antifungal medication for 3 weeks after the myringoplasty, then dry again by local antifungal cream, but otorrhea recurred 3 times within 2 years. Thirty-five patients (38 ears) acquired dry ear after surgery and/or oral antifungal drugs, but 2 of the 38 ears recurred separately at the fourth and sixth month after their surgeries, then dry again by irrigation with hydrogen peroxide and by administrating local antifungal cream for 3 weeks.

CONTROL:Otologists should elevate suspicion of mycotic otitis media when they meet patients with continuous otorrhea and patients who did not respond to the antibacterial treatment. The diagnosis based on microbiological findings, such as direct microscopy or fungal cultures should be done as soon as possible.

TREATMENT: If the otomycosis is decided, we suggest that topical treatment should be selected firstly, although most patients in present study were treated by surgery accompanied with oral antifungal medications. If there is obvious bone erosion, surgery is necessary to excise the pathological tissues, minificate the mastoid cavity and close the middle cavity in order to improve the hearing and prevent the infection from the outer ear.

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