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Downbeat nystagmus following classical heat stroke
Dirk Deleu1, Abbas El Siddig, Saadat Kamran
1Department of Neurology (Medicine), Hamad Medical Corporation, Doha, Qatar. doc_deleu@hotmail.com
Clinical Neurology and Neurosurgery
|November 29, 2005
Summary
Classical heat stroke can rarely cause cerebellar syndrome. This case highlights the vestibulocerebellum
Area of Science:
- Neurology
- Toxicology
Background:
- Cerebellar syndrome is a rare complication of classical heat stroke.
- The vestibulocerebellum is particularly vulnerable to thermal injury.
Observation:
- A 39-year-old man presented with cerebellar syndrome, including downbeat nystagmus, following heat stroke.
- Initial MRI was normal; however, symptoms like nystagmus, ataxia, and dysmetria developed.
Findings:
- Downbeat nystagmus resolved within 6 days.
- Ataxia and dysmetria improved over 2 months.
- Follow-up CT scan showed no cerebellar atrophy, indicating complete reversibility.
Implications:
- This case demonstrates the potential for complete recovery from heat stroke-induced cerebellar dysfunction.
- Highlights the specific vulnerability of the vestibulocerebellum to thermal injury.
- Suggests that early recognition and management can lead to favorable outcomes.