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[Hearing loss due to mumps (author's transl)]
Abstract:
Several years post epidemic parotitis 765 children were examined to check possible hearing impairment. High peak was the year 1970 with predominant cases of parotitis with meningo-encephalitis in November/December. Boys (70.98%) were preferable attacked by the disease (age 5--7 years). Audiometric investigations were carried out in 359 cases (epidemic 1970) and 101 children (during 1975-1977), who had continuous control of hearing ability during hospital stay. 23 (4.9%) of the children showed impaired hearing (full deafness or high-tone hearing loss). No definite correlation to severity of parotitis, signs of meningo-encephalitis, location of infected glandula or length of sickness could be detected.
Insights
Mumps (epidemic parotitis) can lead to hearing impairment in children. A study found 4.9% of children experienced hearing loss, with no clear link to disease severity or complications like meningoencephalitis.
Area of Science:
- Otolaryngology
- Pediatrics
- Epidemiology
Context:
- A significant mumps epidemic occurred in 1970, with a notable increase in cases presenting with meningoencephalitis.
- Boys aged 5-7 years were disproportionately affected during the epidemic peak.
- Longitudinal hearing assessments were conducted on children following the epidemic.
Purpose:
- To investigate the prevalence of hearing impairment in children following a mumps epidemic.
- To determine potential correlations between mumps severity, meningoencephalitis, and subsequent hearing loss.
- To establish the long-term audiological outcomes in a pediatric population exposed to mumps.
Summary:
- A cohort of 765 children was evaluated for hearing impairment years after a mumps epidemic.
- Audiometric testing revealed that 4.9% of the children experienced significant hearing loss, including high-tone hearing loss and deafness.
- No definitive association was found between the severity of mumps, meningoencephalitis, affected gland location, or illness duration and the occurrence of hearing impairment.
Impact:
- Highlights the potential risk of hearing impairment following mumps, emphasizing the need for audiological surveillance in affected children.
- Underscores that even seemingly uncomplicated mumps cases can result in hearing deficits.
- Informs public health strategies regarding vaccination and post-epidemic monitoring for pediatric hearing health.