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Hearing recovery from deafness caused by bromate intoxication

  • J Suzuki (a1) (a2), Y Takanashi (a1) (a2), A Koyama (a3) and Y Katori (a2)
Abstract
Objectives

Sodium bromate is a strong oxidant, and bromate intoxication can cause irreversible severe-to-profound sensorineural hearing loss. This paper reports the first case in the English literature of bromate-induced hearing loss with hearing recovery measured by formal audiological assessment.

Case report

A 72-year-old woman was admitted to hospital with complaints of profound hearing loss, nausea, diarrhoea and anuria after bromate ingestion in a suicide attempt. On admission, pure tone audiometry and auditory brainstem responses showed profound bilateral deafness. Under the diagnosis of bromate-induced acute renal failure and sensorineural hearing loss, continuous haemodiafiltration was performed. When dialysis was discontinued, pure tone audiometry and auditory brainstem responses showed partial threshold recovery from profound deafness.

Conclusion

Severe-to-profound sensorineural hearing loss is a common symptom of bromate intoxication. Bromate-induced hearing loss may be partially treated, and early application of continuous haemodiafiltration might be useful as a treatment for this intractable condition.

Copyright
Corresponding author
Author for correspondence: Dr J Suzuki, Department of Otolaryngology – Head and Neck Surgery, Tohoku University School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan E-mail: j_suzuki1212@orl.med.tohoku.ac.jp Fax: +81 22 717 7307
Footnotes
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Dr J Suzuki takes responsibility for the integrity of the content of the paper

Footnotes
References
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The Journal of Laryngology & Otology
  • ISSN: 0022-2151
  • EISSN: 1748-5460
  • URL: /core/journals/journal-of-laryngology-and-otology
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