Successful treatment of a postpolio tinnitus with type a botulinum toxin.
case_report · Level V
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Abstract
Objective tinnitus is a symptom often observed in patients with chronic hyperactivity of masticatory muscles. We report here the unusual case of a 63-year-old woman who developed a distressing tinnitus related to contractions of reinnervated masticatory muscles. This reinnervation process was caused by a postpolio syndrome that gave rise to an acoustic resonance phenomenon transmitted to the middle ear as an audible sound. The tinnitus was successfully treated with electromyography-guided intramuscular injections of type A botulinum toxin. The intramuscular injection of botulinum toxin was found to be effective in relieving severe and disabling postpolio tinnitus.
Medical subject headings
- Botulinum Toxins, Type A
- Neuromuscular Agents
- Postpoliomyelitis Syndrome
- Tinnitus