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[Recurrent syncope and Chiari malformation].

B Guillon1, J N Trochu, S Olindo

  • 1Clinique Neurologique, Hôpital Laennec, CHR Nantes. Benoit.Guillon@sante.univ-nantes.fr

Revue Neurologique
|March 10, 2001
PubMed
Summary
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Brief, repetitive syncopes can be a rare presenting symptom of Chiari I malformation. Surgical decompression of the posterior fossa resolved these syncopal episodes in two patients.

Area of Science:

  • Neurology
  • Neurosurgery
  • Medical Diagnostics

Background:

  • Chiari I malformation involves cerebellar tonsil herniation through the foramen magnum.
  • Common symptoms include head and neck pain, brain-stem, or spinal cord issues.
  • Syncopal episodes are infrequently reported as a primary manifestation.

Observation:

  • Two cases presented with brief, recurrent syncopes as the main symptom.
  • These syncopes were the initial indicator of underlying Chiari I malformation.
  • The syncopal events were transient and repetitive.

Findings:

  • The syncopes are hypothesized to result from transient brain-stem or vascular compression.
  • Compression occurs at the craniocervical junction due to increased intracranial pressure.

Related Experiment Videos

  • Posterior fossa decompression led to the complete resolution of syncopal episodes.

    • Implications:

    • Recognizing syncopes as a potential symptom of Chiari I malformation is crucial for timely diagnosis.
    • This highlights the importance of evaluating craniocervical junction abnormalities in unexplained syncope.
    • Surgical intervention can effectively alleviate these neurological symptoms.