Ventriculoperitoneal shunt failure: an institutional review of 2-year survival rates

Chevis N Shannon1, Leslie Acakpo-Satchivi, Russell S Kirby

  • 1Division of Neurosurgery, Section of Pediatric Neurosurgery, Children's Hospital of Alabama, University of Alabama, 400 Ambulatory Care Center, 1600 7th Ave South, Birmingham, AL 35233, USA. chevis.shannon@childrensal.org

Insights

Ventriculoperitoneal (VP) shunt failure in children with hydrocephalus is common. Age and weight at initial VP shunt insertion predict failure in non-intraventricular hemorrhage (IVH) patients, highlighting the need for further research.

Area of Science:

  • Pediatric Neurosurgery
  • Hydrocephalus Research
  • Medical Device Performance

Background:

  • Long-term survival of shunts in pediatric hydrocephalus patients remains a challenge.
  • Etiology, birth weight, and gestational age are potential risk factors for shunt failure, but vary across populations.
  • Identifying specific factors for initial ventriculoperitoneal (VP) shunt failure is crucial for improving outcomes.

Purpose of the Study:

  • To identify social, clinical, and neonatal factors associated with initial VP shunt failure.
  • To analyze failure predictors in both intraventricular hemorrhage (IVH) and non-IVH pediatric hydrocephalus cohorts.
  • To compare risk factors between different etiological groups.

Main Methods:

  • Retrospective review of pediatric hydrocephalus patients treated between 2000-2005.
  • Survival analysis to determine factors associated with time to shunt failure.
  • Separate analyses for IVH and non-IVH patient cohorts.

Main Results:

  • Age and weight at initial VP shunt insertion were significant predictors of shunt failure in the non-IVH group (p < .05).
  • In the non-IVH cohort, 108 of 238 patients experienced shunt failure within 2 years, with 50 occurring within 3 months.
  • In the IVH cohort, 56 of 100 patients failed within 2 years, with 36 occurring within 3 months.
  • Age at initial shunt placement was associated with time to shunt failure when controlling for failure type (p = .0004).

Conclusions:

  • Findings confirm previous studies regarding shunt failure in the IVH population.
  • Age at initial shunt placement is a critical factor influencing VP shunt survival.
  • Further prospective studies and standardized clinical decision-making are recommended to optimize shunting strategies.
Abstract