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Summary
Vascular events can cause temporary hearing loss. Brainstem strokes and brain infarctions may lead to reversible bilateral deafness, impacting auditory function.
Area of Science:
- Neurology
- Otolaryngology
- Neuroscience
Background:
- Vascular etiologies of hearing loss are uncommon.
- Auditory dysfunction can arise from central nervous system events.
Observation:
- Two cases of reversible bilateral deafness linked to vascular events were documented.
- Audiometric studies in one patient revealed retrocochlear auditory dysfunction following a brainstem stroke.
Findings:
- The first patient experienced temporary hearing loss after a brainstem stroke, indicating retrocochlear dysfunction.
- The second patient presented with bitemporal infarction on CT scan, later confirmed postmortem, associated with deafness.
Implications:
- These cases highlight the potential for vascular insults to cause reversible hearing impairment.
- Understanding these mechanisms is crucial for diagnosing and managing hearing loss of neurological origin.