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Updated: May 24, 2026
Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
Published on: October 14, 2022
Revision surgeries are associated with significant increased risk of subsequent cerebrospinal fluid shunt infection
Tamara D Simon1, Kathryn B Whitlock, Jay Riva-Cambrin
1Department of Pediatrics, University of Washington/ Seattle Children's Hospital, Seattle, WA, USA. Tamara.Simon@seattlechildrens.org
Insights
Cerebrospinal fluid (CSF) shunt revisions significantly increase infection risk in children, especially with multiple revisions. Younger age at initial placement also elevates infection hazard.
Area of Science:
- Pediatric Neurosurgery
- Infectious Disease Epidemiology
Background:
- Cerebrospinal fluid (CSF) shunts are crucial for treating hydrocephalus in children.
- Shunt infection is a major complication, necessitating further interventions.
- Understanding risk factors for shunt infection is vital for patient management.
Purpose of the Study:
- To investigate the association between CSF shunt revisions and the risk of shunt infection.
- To adjust for baseline patient factors influencing infection risk.
- To quantify the impact of shunt revisions on infection likelihood.
Main Methods:
- Retrospective cohort study of 579 children (0-18 years) undergoing initial CSF shunt placement.
- Data collected on subsequent shunt revisions and occurrence of shunt infection.
- Cox proportional hazard models used to analyze infection risk, reporting Hazard Ratios (HR) and 95% Confidence Intervals (CI).
Main Results:
- 123 children developed CSF shunt infections.
- Younger age (<6 months) at placement (HR 2.4) and myelomeningocele (HR 0.4) were associated with infection risk.
- Shunt revision significantly increased infection risk (HR 3.0), with risk escalating with more revisions (≥2 revisions HR 6.5).
Conclusions:
- Subsequent CSF shunt revisions substantially elevate the risk of infection.
- While younger age increases infection hazard, revisions represent a critical, modifiable risk factor.
- Findings underscore the importance of minimizing shunt revisions to reduce infection rates.
Background:
The object of this study was to determine whether cerebrospinal fluid (CSF) shunt revision(s) are associated with increased risk of CSF shunt infection, after adjusting for baseline factors that contribute to infection risk.
Methods:
This was a retrospective cohort study of 579 children aged 0-18 years who underwent initial CSF shunt placement between January 01, 1997 and October 12, 2006 at a tertiary care children's hospital. The outcome of interest was CSF shunt infection. Data for all subsequent CSF shunt revisions leading up to and including the initial CSF shunt infection, when applicable, were obtained. The likelihood of infection was determined using a Cox proportional hazard model accounting for patient characteristics and CSF shunt revisions, and is reported using hazard ratios (HR) with 95% confidence intervals (CI).
Results:
There were 123 children who developed infection. Baseline factors independently associated with hazard of infection included age 0 to <6 months at CSF shunt placement (HR 2.4, 95% CI: 1.02-6.7) and myelomeningocele (HR 0.4, 95% CI: 0.2-0.8). Controlling for baseline factors, the risk of infection after shunt revision was significantly greater than at the time of initial placement (HR 3.0, 95% CI: 1.9-4.7), and this risk increased as numbers of revisions increased (≥2 revisions HR 6.5, 95% CI: 3.6-11.4).
Conclusions:
Although younger age is associated with increased hazard of infection, subsequent CSF shunt revision significantly increases infection risk.
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