Cessation of chronic hypertension after posterior fossa decompression in a child with Chiari I malformation

Case report

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  • 1 Department of Cell Biology, University of Alabama at Birmingham; and Pediatric Neurosurgery, Children's Hospital, Birmingham, Alabama
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✓ The authors report on the case of a patient evaluated for Valsalva maneuver—induced headache, dizziness, and ataxia. Neuroimaging revealed a Chiari I malformation without syringomyelia. A history of idiopathic hypertension was noted. After posterior fossa decompression, pathologically elevated blood pressure was absent, and at 24-month follow-up evaluation the patient remained normotensive. Although seemingly rare, this case illustrates that some patients with tonsillar ectopia may exhibit elevated blood pressure. Clinicians should consider hindbrain herniation a rare cause in idiopathic hypertension.

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Contributor Notes

Address reprint requests to: R. Shane Tubbs, Ph.D., Pediatric Neurosurgery, 1600 7th Avenue South ACC 400, Birmingham, Alabama 35233. email: richard.tubbs@ccc.uab.edu.
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