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Chiari I malformation and intra-cranial hypertension:a case-based review

Senta Kurschel1, Richard Maier, Verena Gellner

  • 1Department of Neurosurgery, Medical University, Auenbruggerplatz 29, 8036, Graz, Austria. senta.kurschel@meduni-graz.at

Child'S Nervous System : Chns : Official Journal of the International Society for Pediatric Neurosurgery
|May 9, 2007
PubMed

Insights

Chiari I malformation (CMI) can cause intracranial hypertension (IH) and vision loss. Surgical decompression improved symptoms, but optic nerve atrophy persisted, highlighting the need for neuro-ophthalmological screening in CMI patients.

Area of Science:

  • Neurology
  • Ophthalmology
  • Neurosurgery

Background:

  • Chiari I malformation (CMI) is a structural defect in the cerebellum.
  • Intracranial hypertension (IH) can arise secondary to CMI, leading to severe symptoms.
  • Obesity and altered cerebrospinal fluid (CSF) dynamics are potential contributing factors.

Observation:

  • A 13-year-old male presented with headaches, neck pain, torticollis, and progressive visual deterioration.
  • Chronic papilledema and decreased visual acuity were noted in a patient with known CMI.
  • Intracranial pressure monitoring confirmed elevated levels.

Findings:

  • Suboccipital decompression, C1 laminectomy, and duroplasty were performed.
  • Post-surgery, the patient showed marked clinical improvement with resolution of papilledema.
  • However, follow-up revealed consecutive bilateral optic nerve atrophy.

Implications:

  • Intracranial hypertension with visual deterioration is a significant clinical presentation of CMI.
  • Neuro-ophthalmological examination is crucial for all CMI patients to ascertain the incidence of visual compromise.
  • Early diagnosis and intervention are vital, although long-term visual outcomes require monitoring due to potential optic nerve damage.
Abstract

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