Abstract
Conclusions: Administration of high-dose gentamicin for intractable Meniere's disease appears to be effective in achieving long-term control of vertigo. However, the safety of this route of administration with respect to the patient's hearing has not yet been sufficiently established. Objectives: The study aimed to analyze the long-term results of patients receiving high-dose intratympanic gentamicin (ITG) instillation for refractory Meniere's disease. Patients and methods: Fourteen patients with Meniere's disease according to 1995 American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS) guidelines who had failed medical (12 subjects) or surgical (2 subjects) treatment were included. Intratympanic injections of 27 mg/ml gentamicin were performed three times daily for 4 days. Vertigo control, the patients’ functional level, and their hearing threshold were all analyzed. Criteria described in 1995 by AAO-HNS were used. Results: The overall successful vertigo control rate was 92.9% over the 2-year follow-up and 85.7% at long-term follow-up (average 10 years). Hearing level as pure-tone average was worse in four patients (28.5%) after 2 years follow-up and in six patients (42.8%) after long-term follow-up, respectively. Profound sensorineural hearing loss occurred as a result of gentamicin injection in one patient (7%).
Published Version
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