Journal
SURGICAL NEUROLOGY
Volume 63, Issue 6, Pages 586-589Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.surneu.2004.06.021
Keywords
Chiari's malformation; trigeminal neuralgia; ventriculoperitoneal shunt
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Background: Trigeminal neuralgia (TN) is most commonly related to vascular compression of the trigeminal nerve. Trigeminal neuralgia associated with Chiari's malformation and associated hydrocephalus are rare. Case Description: A 3 1 -year-old male presented with classical TN affecting the mandibular division of the right trigeminal nerve. His symptoms were poorly controlled with increasing doses of carbamazepine. Magnetic resonance imaging scan of brain revealed Chiari's type I malformation and associated hydrocephalus. Approximately I month after insertion of a programmable ventriculoperitoneal shunt, his TN resolved. Conclusions: Chiari's malformation and hydrocephalus are rare associates of TN. The pathophysiology of TN in these cases may be due to neurovascular conflict, related to raised intracranial pressure from the hydrocephalus and/or the small posterior fossa volume in these patients. Drainage of associated hydrocephalus may be an effective surgical treatment. (c) 2005 Published by Elsevier Inc.
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