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Analysis of Codman microcerebrospinal fluid shunt
Umeå University, Faculty of Medicine, Department of Pharmacology and Clinical Neuroscience, Clinical Neuroscience. Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway.
Umeå University, Faculty of Medicine, Department of Pharmacology and Clinical Neuroscience, Clinical Neuroscience.
Umeå University, Faculty of Medicine, Department of Radiation Sciences.
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2018 (English)In: Brain and Behavior, ISSN 2162-3279, E-ISSN 2162-3279, Vol. 8, no 10, article id e01002Article in journal (Refereed) Published
Abstract [en]

Introduction: Ventriculo-peritoneal cerebrospinal fluid (CSF) shunt is the most common method of treating pediatric hydrocephalus. The Codman microadjustable valve (CMAV) is a CSF shunt constructed for children. The objective of the study was (a) to analyze complications after insertion of a CMAV shunt in hydrocephalic children, (b)to analyze complications after replacing a CMAV by an adult-type Codman Hakim adjustable valve shunt (CHAV), and to (c) analyze the in vitro characteristics of the CMAV shunt and correlate the findings with the clinical performance of the shunt.

Methods: A retrospective study analyzed a cohort of hydrocephalic children who had received a CMAV shunt and later replaced by a CHAV shunt. We report on the complications that resulted from replacing the CMAV with the CHAV. We tested six CMAV shunts with or without an antisiphon device (ASD) in which opening pressure, resistance, sensitivity to abdominal pressure, ASD position dependency, and function were determined. The test results were correlated with the clinical performance of the shunt in the retrospective study.

Results: Thirty-seven children (19 boys, 18 girls) were identified. Within the first month after shunt placement, a total of 10 patients (27%) developed complications including infections, hygromas, and shunt dysfunction. Shunt survival varied from 1week to 145 months. Over the 10-year follow-up period, 13 children had their shunts replaced, six of them with a CHAV without any further complications. A bench test of the CMAV was done to test whether the opening pressure was in agreement with the manufacturer's specifications. Our results were generally in agreement with specifications stated by the manufacturer.

Conclusion: Replacing a CMAV with a CHAV was well tolerated by the patients. Bench test results were generally in agreement with manufacturers specifications. Replacing a CMAV with a CHAV in pediatric hydrocephalus patients can be accomplished safely.

Place, publisher, year, edition, pages
John Wiley & Sons, 2018. Vol. 8, no 10, article id e01002
Keywords [en]
cerebrospinal fluid, clinical retrospective study
National Category
Pediatrics
Identifiers
URN: urn:nbn:se:umu:diva-153130DOI: 10.1002/brb3.1002ISI: 000447544700001PubMedID: 30207083Scopus ID: 2-s2.0-85053399281OAI: oai:DiVA.org:umu-153130DiVA, id: diva2:1262174
Available from: 2018-11-09 Created: 2018-11-09 Last updated: 2018-11-09Bibliographically approved

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Sandvig, AxelMalm, JanEklund, AndersKoskinen, Lars-Owe D.

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Sandvig, AxelMalm, JanEklund, AndersKoskinen, Lars-Owe D.
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