- Title
- Hypertensive slit ventricle syndrome: pseudotumor cerebri with a malfunctioning shunt?
- Creator
- Bateman, Grant A.
- Relation
- Journal of Neurosurgery Vol. 119, Issue 6, p. 1503-1510
- Publisher Link
- http://dx.doi.org/10.3171/2013.7.JNS13390
- Publisher
- American Association of Neurological Surgeons
- Resource Type
- journal article
- Date
- 2013
- Description
- Symptomatic shunt malfunction without ventricular enlargement is known as slit ventricle syndrome (SVS). Patients presenting with this syndrome are not a homogeneous group. Of the 5 different types classified by Rekate, Type 1 is caused by CSF overdrainage and is associated with low pressures; Types 2 and 3 are associated with shunt blockage and elevated CSF pressures; Type 4 is cephalocranial disproportion that increases brain parenchymal pressure but not CSF pressure; and Type 5 is headache unrelated to shunt function. The low and normal CSF pressure types are relatively well understood, but the high-pressure forms are more problematic. In the high-pressure forms of SVS it is said that the lack of ventricular dilation is related to a reduction in brain compliance analogous to idiopathic intracranial hypertension or pseudotumor cerebri. Despite this, there is little evidence in the literature to support this conjecture. With this in mind, 3 cases of SVS associated with elevated CSF pressure are presented. The MR venogram findings and hemodynamics of these 3 cases are shown to be identical to those of pseudotumor cerebri. A literature review indicates that an underlying venous impairment may be functioning in the patients who re-present with small ventricles following shunt malfunction.
- Subject
- slit ventricle syndrome; hydrocephalus; venous sinus; stenosis; cryptococcal meningitis
- Identifier
- http://hdl.handle.net/1959.13/1299997
- Identifier
- uon:19988
- Identifier
- ISSN:0022-3085
- Language
- eng
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