Immune reactions associated with silicone-based ventriculo-peritoneal shunt malfunctions in children.
Biomaterials
; 25(17): 3853-60, 2004 Aug.
Article
em En
| MEDLINE
| ID: mdl-15020161
ABSTRACT
The implantation of ventriculo-peritoneal (VP) shunting systems is the most commonly performed neurological procedure in children with hydrocephalus. Although the overall complication risk is low, the cumulative risk of shunt failure is high and unfortunately results in a high prevalence of revision surgeries. In this study, we explored the concept that some pediatric patients may develop an immune response to either the proteins attached to the silicone implant surface or to the biomaterial itself, and that this reaction may contribute to VP shunt failure in some individuals. The data displays that the sterile shunt malfunction group had a higher rate of protein deposition and increased levels of autoantibodies to the extracted surface proteins as compared to individuals with functioning shunting systems. The precise nature of the shunt-bound proteins that serve as antigens in this experiment have not yet been determined. The data also indicated that some individuals develop antibodies to polymeric substances that cross-react with partially polymerized acrylamide. The detection of significant amounts of shunt-bound protein, antibody responses to these proteins and to polymeric substances suggest that an immunological response to these proteins may play a role in the mechanism behind sterile shunt malfunctions.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Silicones
/
Materiais Biocompatíveis
/
Prótese Vascular
/
Infecções Relacionadas à Prótese
/
Derivação Ventriculoperitoneal
/
Falha de Tratamento
Tipo de estudo:
Clinical_trials
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Biomaterials
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Estados Unidos