Resolution of papilledema after neurosurgical decompression for primary Chiari I malformation

Academic Article


  • PURPOSE: To report a causal relationship between Chiari I malformation and its rare, but recognized manifestation of bilateral papilledema. DESIGN: Interventional case series. METHODS: Four adult female patients (mean age, 48, age range 25-59 years) with bilateral papilledema, signs and symptoms of increased intracranial pressure, and cranial magnetic resonance imaging (MRI) evidence of a Chiari I malformation ranging from 7 to 22 mm of tonsillar herniation underwent suboccipital decompression. RESULTS: In all four patients, suboccipital decompression was followed by resolution of bilateral papilledema and signs and symptoms of increased intracranial pressure. CONCLUSION: Patients with bilateral papilledema and presumed pseudotumor cerebri require a cranial MRI to determine if they have a Chiari I malformation, because patients with increased intracranial pressure and papilledema from a Chiari I malformation may benefit from suboccipital decompression. © 2002 by Elsevier Science Inc. All rights reserved.
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    Digital Object Identifier (doi)

    Author List

  • Vaphiades MS; Eggenberger ER; Miller NR; Frohman L; Krisht A
  • Start Page

  • 673
  • End Page

  • 678
  • Volume

  • 133
  • Issue

  • 5