From a previous study of achondroplasia as well as from the observation of patients with hydrocephalus associated with craniostenosis, the authors have concluded that an increased superior sagittal sinus venous pressure (SSVP) could be the cause of the enlarged ventricles. However, other workers have demonstrated that an increased SSVP could be the consequence of increased intracranial pressure (ICP). Therefore, the authors undertook a study to determine if there was a physiological test that could distinguish between rare instances of increased SSVP caused by structural and irreversible narrowing of the sinus and those caused by increased ICP. In 20 hydrocephalic infants and children, pressure was simultaneously measured in the lateral ventricle, the superior sagittal sinus, and the jugular vein. Stable baseline pressures were recorded, as well as the variations observed after the withdrawal of an amount of cerebrospinal fluid (CSF) sufficient to lower ICP to zero. Similar recordings were taken after reinjection of an equal quantity of CSF. In all of the patients, SSVP was increased, but not as much as the ICP. In the cases of hydrocephalus without any associated cranial malformation, and therefore without any likely anatomica...Continue Reading
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Achondroplasia in children: correlation of ventriculomegaly, size of foramen magnum and jugular foramina, and emissary vein enlargement
Connecting raised intracranial pressure and cognitive delay in craniosynostosis: many assumptions, little evidence
Use of Phase-Contrast MRA to Assess Intracranial Venous Sinus Resistance to Drainage in Healthy Individuals.
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Angioplasty as the first-line therapeutic option for venous hypertension with outlet obstruction of dural sinus
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Prenatal sonographic findings and prognosis of craniosynostosis diagnosed during the fetal and neonatal periods
Age-related changes in lateral ventricle morphology in craniosynostotic rabbits using magnetic resonance imaging
Idiopathic hydrocephalus in children and idiopathic intracranial hypertension in adults: two manifestations of the same pathophysiological process?
Hydrocephalus following bilateral jugular venous thrombosis in a child: case report and review of the literature
Severe intracranial hypertension in slit ventricle syndrome managed using a cisterna magna-ventricle-peritoneum shunt
Anomalous venous drainage preventing safe posterior fossa decompression in patients with chiari malformation type I and multisutural craniosynostosis. Report of two cases and review of the literature
Chiari type 1 malformation in an infant with type 2 Pfeiffer syndrome: further evidence of acquired pathogenesis
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Improvement in ventriculomegaly following cervicomedullary decompressive surgery in children with achondroplasia and foramen magnum stenosis
Hydrocephalus--revision of its definition and classification with special reference to "intractable infantile hydrocephalus"
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Aneurysmal Malformations of the Vein of Galen. Follow-up of 120 Children Treated between 1984 and 1994
Pathogenesis of hydrocephalus in achondroplastic dwarfs: a review and presentation of a case followed for 22 years
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Functional cerebral venous outflow in swine and baboon: feasibility of an intracranial venous hypertension model
The Pseudotumor Cerebri Syndrome: A Unifying Pathophysiological Concept for Patients with Isolated Intracranial Hypertension with Neither Mass Lesion Nor Ventriculomegaly
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CSF & Lymphatic System
This feed focuses on Cerebral Spinal Fluid (CSF) and the lymphatic system. Discover the latest papers using imaging techniques to track CSF outflow into the lymphatic system in animal models.