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Positional plagiocephaly following ventriculoperitoneal shunting in neonates and infancy-how serious is it?
Stuart A G Roberts1,2, Joseph D Symonds3, Reema Chawla4
1Department of Paediatric Neurosurgery, Birmingham Children's Hospital, Birmingham, West Midlands, UK. stuartroberts@nhs.net.
Insights
Ventriculoperitoneal (VP) shunt insertion, particularly occipital shunts, significantly increases the risk of contralateral positional plagiocephaly in infants. Careful monitoring and head positioning advice are recommended post-surgery.
Area of Science:
- Pediatric Neurosurgery
- Craniofacial Development
- Neurology
Background:
- Positional plagiocephaly is a common condition in infants.
- Ventriculoperitoneal (VP) shunts are frequently used to treat hydrocephalus in children.
- The relationship between VP shunt placement and plagiocephaly requires further investigation.
Purpose of the Study:
- To test the hypothesis that ventriculoperitoneal (VP) shunt insertion increases contralateral positional plagiocephaly.
- To identify risk factors associated with VP shunt placement and positional plagiocephaly.
Main Methods:
- Retrospective review of 339 children undergoing VP shunt insertion.
- Assessment of positional plagiocephaly using the cranial vault asymmetry index.
- Multinomial logistic regression to analyze relationships between plagiocephaly, shunt position, gender, and age.
Main Results:
- Occipital VP shunts are significantly associated with an increased risk of contralateral positional plagiocephaly.
- This risk is particularly pronounced within the first 12 months of life.
Conclusions:
- Post-operative head positioning advice and careful follow-up are crucial for infants with VP shunts.
- Consideration of active monitoring, physiotherapy, and health visitor interventions may help prevent plagiocephaly.
- Alternative surgical approaches like endoscopic third ventriculostomy or anterior shunt placement may be beneficial in select cases.
Purpose:
We test the hypothesis that ventriculoperitoneal (VP) shunt insertion significantly increases contralateral positional plagiocephaly.
Methods:
We reviewed 339 children who had a VP shunt inserted at Birmingham Children's Hospital between 2006 and 2013, noting laterality of shunt insertion and frontal or occipital position. We ascertained the presence of post-operative positional plagiocephaly using the cranial vault asymmetry index. Multinomial logistic regression modelling was used to examine relationships between plagiocephaly, shunt position, gender and age. Adjusted odds and risk ratios for effect of variables on plagiocephaly were calculated.
Results:
Children with occipital VP shunts are at significant risk of developing contralateral positional plagiocephaly, particularly in the first 12 months of life.
Conclusions:
We recommend careful follow-up and advice regarding head positioning following surgery. There should be consideration for active monitoring to avoid plagiocephaly, including physiotherapy and health visitor interventions. Endoscopic third ventriculostomy in selected cases or anterior shunt placement could be considered. A larger national study would be of interest to evaluate the extent of an otherwise correctable problem.
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