Document Detail

Experience with the Strata valve in the management of shunt overdrainage.
MedLine Citation:
PMID:  17330533     Owner:  NLM     Status:  MEDLINE    
OBJECT: The overdrainage of cerebrospinal fluid (CSF) in children with shunt-treated hydrocephalus may cause chronic disabling symptoms and require repeated surgery. Externally adjustable valves offer a noninvasive way of altering the valve opening pressure. The authors report on their experience with using the Strata valve in the management of symptomatic CSF overdrainage. METHODS: The authors treated 24 patients with symptomatic CSF overdrainage by inserting a Strata valve. The severity of symptoms was graded, and the frequency of hospital visits and shunt operations was recorded before and after insertion of the valve. Additionally, results of brain imaging and intracranial pressure monitoring were reviewed. Nineteen patients (79.2%) had severe symptoms at the time of the insertion; 1 year after Strata valve insertion only one patient (4.17%) still suffered severe symptoms. The number of hospital admissions was 3.38/patient/year before placement and 1.21 for the 1st year, 1 for the 2nd, and 0.4 for the 3rd postoperative year. The number of operations was 3.42/patient/year during the year before placement of the valve, and then 0.71 for the 1st, 0.56 for the 2nd, and 0.25 for the 3rd postoperative years. During the 1st year after placement of the Strata valve, the settings were changed 2.79 times/patient/year, 1.29 for the 2nd, and 1.33 times/patient/year for the 3rd year. CONCLUSIONS: The Strata valve was effective in improving the symptoms of overdrainage in the majority of patients in this series. The number of hospital admissions and operations for valve malfunction was reduced.
Charles Kondageski; Dominic Thompson; Mandy Reynolds; Richard D Hayward
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of neurosurgery     Volume:  106     ISSN:  0022-3085     ISO Abbreviation:  J. Neurosurg.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-03-02     Completed Date:  2007-07-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0253357     Medline TA:  J Neurosurg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  95-102     Citation Subset:  AIM; IM    
Department of Pediatric Neurosurgery, Great Ormond Street Hospital for Children, London, United Kingdom.
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MeSH Terms
Cerebrospinal Fluid Shunts / adverse effects,  instrumentation*,  statistics & numerical data
Child, Preschool
Equipment Design
Equipment Failure
Follow-Up Studies
Headache / etiology,  prevention & control
Hydrocephalus / physiopathology,  surgery
Intracranial Pressure / physiology
Nausea / etiology,  prevention & control
Patient Admission / statistics & numerical data
Retrospective Studies
Ventriculoperitoneal Shunt / adverse effects,  instrumentation
Vomiting / etiology,  prevention & control
Comment In:
J Neurosurg. 2007 Feb;106(2 Suppl):93-4; discussion 94   [PMID:  17330532 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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