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1.
Childs Nerv Syst ; 26(9): 1229-31, 2010 Sep.
Article in English | MEDLINE | ID: mdl-20445982

ABSTRACT

BACKGROUND: Shunt malfunction typically presents with headaches, vomiting, and impaired consciousness. Paraparesis has been rarely reported as the initial manifestation of valve dysfunction. CASE ILLUSTRATION: A 17-year-old boy was admitted with invalidating quadriparesis that after neuroimaging evaluation was found to be produced by communicating syringomyelia attributed to shunt malfunction. DISCUSSION AND CONCLUSION: Persistence of the central canal in association with communicating hydrocephalus may lead to the development of communicating syringomyelia. In this context, insufficient drainage of CSF produced by shunt dysfunction may evolve exclusively with symptoms and signs of spinal cord involvement in the absence of the usual cerebral manifestations related to shunt failure.


Subject(s)
Prosthesis Failure , Quadriplegia/etiology , Syringomyelia/etiology , Ventriculoperitoneal Shunt/adverse effects , Adolescent , Humans , Hydrocephalus/surgery , Male , Quadriplegia/surgery , Syringomyelia/surgery , Treatment Outcome
2.
Neurosurg Rev ; 29(3): 229-35, 2006 Jul.
Article in English | MEDLINE | ID: mdl-16534633

ABSTRACT

Two patients with intracranial arachnoid cysts, one with myelomeningocele-hydrocephalus and the other with a subdural fluid collection, were given a cerebrospinal (CSF) extracranial shunt. All four patients developed features of CSF overdrainage following shunting and were treated by cranial vault expanding procedures. Before undergoing decompressive craniotomy, the patients were treated by a variety of procedures, including changing of obstructed ventricular catheters (n=4), insertion or upgrading of programmable valves (n=3), and foramen magnum decompression (n=1). Clinical manifestations of these four patients were attributed to craniocerebral disproportion caused by chronic and progressive skull changes due to dampening of the CSF pulse pressure, which is necessary for maintaining normal cranial growth. On the basis of our previous experience with expanding craniotomies in cases of minimal forms of craniosynostosis, we treated these patients with bilateral parietal craniotomies, with satisfactory results. In conclusion, biparietal decompressive craniotomy constitutes a useful and safe procedure for relieving the clinical manifestations of some CSF overdrainage syndromes, especially in cases with slit-ventricle syndrome and craniocerebral disproportion that prove to be refractory to simpler management procedures.


Subject(s)
Cerebrospinal Fluid Shunts/adverse effects , Neurosurgical Procedures/adverse effects , Postoperative Complications/pathology , Postoperative Complications/surgery , Skull/pathology , Skull/surgery , Adolescent , Adult , Arachnoid Cysts/complications , Arachnoid Cysts/surgery , Cerebrospinal Fluid Pressure , Child, Preschool , Craniotomy , Decompression, Surgical , Female , Humans , Hydrocephalus/complications , Hydrocephalus/surgery , Infant , Intracranial Hypertension/complications , Magnetic Resonance Imaging , Male , Meningomyelocele/complications , Meningomyelocele/surgery , Tomography, X-Ray Computed
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