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[Auditory brain stem response assessment in Ramsay Hunt syndrome]
Hongmin Wu1, Shankai Yin, Wenying Lu
1Department of Otorhinolaryngology and Ear Laboratory, Affiliated Sixth People's Hospital of Shanghai Jiaotong University, Shanghai Hearing Measuring Center, Shanghai, 200233, China.
Summary
Ramsay Hunt syndrome affects auditory brain stem response (ABR) latencies in affected ears. This suggests cochlear or retrocochlear involvement, not just pure cochlear hearing loss.
Area of Science:
- Neuroscience
- Audiology
- Otolaryngology
Context:
- Ramsay Hunt syndrome (herpes zoster oticus) can cause neurological deficits affecting the auditory system.
- Understanding auditory pathway involvement is crucial for diagnosis and management.
Purpose:
- To investigate changes in auditory brain stem response (ABR) in patients with unilateral Ramsay Hunt syndrome.
- To analyze ABR peak and interpeak latencies in affected versus unaffected ears.
Summary:
- Thirty-six patients with unilateral Ramsay Hunt syndrome underwent pure tone and ABR testing.
- Affected ears showed significantly prolonged latencies for peaks II, V, and interpeak latencies I-III and I-V compared to contralateral ears (P < 0.05).
Impact:
- Audiological findings indicate potential cochlear, retrocochlear, or multi-site auditory pathway involvement in Ramsay Hunt syndrome.
- Pure cochlear hearing loss is less common in this condition, highlighting the need for comprehensive auditory assessment.