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Cochlear implantation in a case of bilateral sensorineural hearing loss due to mumps
Yukie Suzuki1, Hiroshi Ogawa, Yoko Baba
1Fukushima Rehabilitation Center for Children, Koriyama, 963-8041, Japan.
Abstract:
It is well known that unilateral profound sensorineural hearing loss is caused by mumps; however, bilateral deafness is rare. Herein we report a case of bilateral profound hearing loss caused by mumps infection in a four-year-old boy. Labyrinthitis due to the mumps virus was suspected. His verbal understanding was poor, and he completely stopped talking. He was soon fitted with a hearing aid, but it proved insufficient. Thereupon, cochlear implantation was performed on his left ear. Six months after the operation, his speech perception and speech production were improved. In cases of bilateral profound hearing loss due to mumps infection conservative therapy is ineffective; therefore, cochlear implantation is recommended. Vaccine coverage for mumps virus is also strongly recommended in Japan.
Insights
Bilateral profound hearing loss from mumps is rare but treatable. Cochlear implantation significantly improved speech in a young boy, highlighting its recommendation for such cases.
Area of Science:
- Otolaryngology
- Virology
- Pediatrics
Background:
- Mumps virus is a known cause of unilateral sensorineural hearing loss.
- Bilateral deafness resulting from mumps infection is exceptionally rare.
Observation:
- A four-year-old boy presented with bilateral profound hearing loss after mumps infection.
- Symptoms included poor verbal understanding and cessation of speech.
- Initial hearing aid fitting was insufficient for his hearing loss.
Findings:
- Mumps virus-induced labyrinthitis was suspected as the cause of bilateral deafness.
- Cochlear implantation in the left ear led to significant improvements in speech perception and production within six months.
- Conservative therapies were ineffective for this severe presentation.
Implications:
- Cochlear implantation is a recommended and effective treatment for bilateral profound hearing loss caused by mumps.
- High mumps vaccine coverage is crucial for preventing such severe outcomes.
- This case underscores the importance of considering cochlear implantation in pediatric hearing loss due to viral infections.