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Severe auditory processing disorder secondary to viral meningoencephalitis
Joseph P Pillion1, Dorothy E Shiffler, Alexander H Hoon
1* Department of Audiology, Kennedy Krieger Institute , Baltimore , USA.
International Journal of Audiology
|March 27, 2014
Summary
Objective auditory function assessment is crucial for patients with cortical damage. Objective measures confirm normal peripheral hearing when behavioral tests are impossible due to severe speech processing deficits.
Area of Science:
- Neuroscience
- Audiology
- Clinical Neurology
Background:
- Bilateral cortical damage, particularly to the temporal and parietal lobes, can significantly impact auditory processing.
- Viral meningoencephalitis can lead to severe neurological sequelae, including extensive cortical injury and status epilepticus.
Observation:
- A 17-year-old male with extensive bilateral temporoparietal cortical damage secondary to viral meningoencephalitis presented with severe speech processing impairments.
- The patient's cortical injury affected language areas and Heschl's gyrus bilaterally, precluding formal speech processing tests.
Findings:
- Objective audiological assessments revealed normal peripheral auditory function despite severe cortical damage.
- This case highlights the limitations of behavioral auditory tests in patients with profound speech processing deficits.
Implications:
- Objective measures of auditory function are essential for evaluating hearing in individuals with cortical damage who cannot cooperate with behavioral testing.
- These findings underscore the importance of utilizing electrophysiological or other objective methods to accurately assess auditory capabilities in complex neurological cases.
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