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Case Reports
Journal Article
Chiari I malformation and intra-cranial hypertension:a case-based review.
Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery 2007 August
OBJECTIVE: To present clinical and morphological findings before and after surgery in a child with Chairi I malformation (CMI) and intra-cranial hypertension (IH). The literature is reviewed and pathophysiologic factors are discussed.
CLINICAL PRESENTATION: A 13-year-old obese boy with a 3-week history of headaches, neck pain, torticollis and progressive visual deterioration was admitted. Bi-lateral chronic papilloedema and decrease in visual acuity were found in the presence of a previously diagnosed CMI. INTERVENTION AND FOLLOW-UP: Intra-cranial pressure monitoring demonstrating increased pressure levels was followed by a sub-occipital decompression, C1 laminectomy and duroplasty. Post-operatively, the boy improved markedly, the 6 months follow-up opthalmological examination demonstrated resolution of papilloedema, but consecutive bi-lateral optic nerve atrophy.
CONCLUSION: IH with progressive visual deterioration represents one of the varying clinical presentations of CMI and may be classified as a secondary form of idiopathic IH. Neuro-ophthalmological examination in all patients with CMI is recommended to identify the real incidence of this presentation. Altered CSF dynamics, venous hypertension and obesity as co-factors may be causative pathophysiologic factors.
CLINICAL PRESENTATION: A 13-year-old obese boy with a 3-week history of headaches, neck pain, torticollis and progressive visual deterioration was admitted. Bi-lateral chronic papilloedema and decrease in visual acuity were found in the presence of a previously diagnosed CMI. INTERVENTION AND FOLLOW-UP: Intra-cranial pressure monitoring demonstrating increased pressure levels was followed by a sub-occipital decompression, C1 laminectomy and duroplasty. Post-operatively, the boy improved markedly, the 6 months follow-up opthalmological examination demonstrated resolution of papilloedema, but consecutive bi-lateral optic nerve atrophy.
CONCLUSION: IH with progressive visual deterioration represents one of the varying clinical presentations of CMI and may be classified as a secondary form of idiopathic IH. Neuro-ophthalmological examination in all patients with CMI is recommended to identify the real incidence of this presentation. Altered CSF dynamics, venous hypertension and obesity as co-factors may be causative pathophysiologic factors.
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