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Hearing recovery from deafness caused by bromate intoxication

Published online by Cambridge University Press:  16 November 2018

J Suzuki*
Affiliation:
Department of Otolaryngology, Iwaki Kyoritsu General Hospital, Japan Department of Otolaryngology – Head and Neck Surgery, Tohoku University School of Medicine, Japan
Y Takanashi
Affiliation:
Department of Otolaryngology, Iwaki Kyoritsu General Hospital, Japan Department of Otolaryngology – Head and Neck Surgery, Tohoku University School of Medicine, Japan
A Koyama
Affiliation:
Emergency Center, Iwaki Kyoritsu General Hospital, Japan
Y Katori
Affiliation:
Department of Otolaryngology – Head and Neck Surgery, Tohoku University School of Medicine, Japan
*
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: [email protected] Fax: +81 22 717 7307

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.

Type
Clinical Records
Copyright
Copyright © JLO (1984) Limited, 2018 

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Footnotes

Dr J Suzuki takes responsibility for the integrity of the content of the paper

References

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