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PubMed · 16159060

Normal pressure "herniation".

Robert W Pratt·Stephan A Mayer
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Abstract

INTRODUCTION: Hydrocephalus with normal intracranial pressure has rarely been reported to result in herniation. METHODS: Case report. RESULTS: A 52-year-old man became acutely comatose with extensor posturing and ventriculomegaly 17 days after experiencing a primary ventricular hemorrhage. An external ventricular drain revealed normal intracranial pressure. After 24 hours without improvement with the drain set at a level of 5 mm H2O, negative-pressure siphoning (50 mL of cerebrospinal fluid [CSF] removed) reduced ventricular size and led to dramatic clinical recovery. CONCLUSION: Normal pressure hydrocephalus can result in delayed brainstem herniation after ventricular hemorrhage. CSF siphoning in these patients can reverse the syndrome.

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Acute DiseaseCerebrospinal Fluid ShuntsEncephaloceleHumansHydrocephalus, Normal PressureIntracranial HemorrhagesMaleMiddle AgedRadiographyCase ReportsJournal Article

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Robert W Pratt, Stephan A Mayer. 2005. Normal pressure "herniation".. https://doi.org/10.1385/ncc%3A2%3A2%3A172

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