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Updated: Jun 18, 2026

Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
Published on: October 14, 2022
Congenital hydrocephalus and ventriculoperitoneal shunts: influence of etiology and programmable shunts on revisions
Christina Notarianni1, Prasad Vannemreddy, Gloria Caldito
1Department of Neurosurgery, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, USA.
Insights
Pediatric hydrocephalus treatment shows posthemorrhagic and craniospinal dysraphism etiologies require earlier shunt revisions. Programmable shunts did not significantly reduce failure rates or revision numbers in this study.
Area of Science:
- Neurosurgery
- Pediatric Neurology
- Biomedical Engineering
Background:
- Hydrocephalus is a common neurosurgical condition in children.
- The adage "once a shunt always a shunt" highlights the challenge of shunt dependence.
Purpose of the Study:
- To review treatment outcomes for pediatric hydrocephalus.
- To identify risk factors for shunt failure and revision.
Main Methods:
- Retrospective review of 253 pediatric patients undergoing ventriculoperitoneal shunt surgery over 14 years.
- Analysis of variables including age, shunt type (programmable vs. others), infection, obstruction, and hydrocephalus etiology.
- Statistical analysis using multiple regression and Kaplan-Meier survival analysis to assess revision-free rates.
Main Results:
- 78% of patients required shunt revision surgeries.
- Posthemorrhagic and craniospinal dysraphism hydrocephalus showed significantly poorer 5-year revision-free survival rates compared to congenital or other causes.
- Programmable shunts offered no significant advantage in reducing failure rates or revision frequency.
Conclusions:
- Hydrocephalus secondary to posthemorrhagic and craniosynostosis dysraphism necessitates earlier shunt revisions.
- Programmable shunt systems did not demonstrate improved outcomes in terms of shunt failure or revision rates.
Object:
Hydrocephalus is a notorious neurosurgical disease that carries the adage "once a shunt always a shunt." This study was conducted to review the treatment results of pediatric hydrocephalus.
Methods:
Pediatric patients who underwent ventriculoperitoneal shunt surgery over the past 14 years were reviewed for shunt revisions. Variables studied included age at shunt placement, revision, or replacement; programmable shunts; infection; obstruction; and diagnosis (congenital, posthemorrhagic, craniospinal dysraphism, and others including trauma, tumors, and infection). Multiple regression analysis methods were used to determine independent risk factors for shunt failure and the number of shunt revisions. The Kaplan-Meier method of survival analysis was used to compare etiologies on the 5-year survival (revision-free) rate and the median 5-year survival time.
Results:
A total of 253 patients were studied with an almost equal sex distribution. There were 92 patients with congenital hydrocephalus, 69 with posthemorrhagic hydrocephalus, 48 with craniospinal dysraphism, and 44 with other causes. Programmable shunts were used in 73 patients (other types of shunts were used in 180 patients). A total of 197 patients (78%) underwent revision surgeries due to shunt failures. The mortality rate was 1.6%. Age at first revision, the 5-year survival rate, and the median 5-year survival time were significantly less for both posthemorrhagic and craniospinal dysraphism than for either the congenital or "other" group (p < 0.05). The failure rate and number of revisions were not significantly reduced with programmable shunts compared with either pressure-controlled or no-valve shunts (p > 0.5).
Conclusions:
Posthemorrhagic hydrocephalus and craniospinal dysraphism hydrocephalus had significantly earlier revisions than congenital and other etiologies. Programmable systems did not reduce the failure rate or the average number of shunts revisions.
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