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Postinfectious vasculopathy with evolution to moyamoya syndrome
T Czartoski1, D Hallam, J M Lacy
1Department of Neurology, University of Washington School of Medicine, Harborview Medical Center, Seattle, WA 98104-249, USA.
Journal of Neurology, Neurosurgery, and Psychiatry
|January 18, 2005
Summary
Delayed vascular complications after bacterial meningitis are rare. This case highlights progressive vasculopathy and moyamoya syndrome developing months after pneumococcal meningitis, suggesting an autoimmune mechanism.
Area of Science:
- Neurology
- Infectious Diseases
- Vascular Medicine
Background:
- Parainfectious vascular events are recognized complications of bacterial meningitis.
- These events typically manifest within two weeks of infection onset.
- Delayed vascular complications are infrequently observed.
Observation:
- A young woman experienced progressive vasculopathy after pneumococcal meningitis treatment.
- Angiography revealed moyamoya syndrome eight months post-infection.
- The patient suffered multiple strokes despite treatment.
Findings:
- Autopsy showed severe narrowing of proximal cerebral arteries.
- No inflammation or atherosclerosis was detected in the vasculature.
- This suggests a non-atherosclerotic, non-inflammatory cause for the vascular changes.
Implications:
- Meningitis-associated inflammation may trigger a postinfectious autoimmune response.
- This response could lead to progressive vasculopathy.
- This mechanism may explain arterial occlusions observed in moyamoya syndrome.