Timing of ventriculoperitoneal shunt insertion following spina bifida closure in Kenya

Franklin C Margaron1, Dan Poenaru, Richard Bransford

  • 1VCUHS Department of Surgery, P.O. Box 980135, Richmond, VA, USA. fmargaron@mcvh-vcu.edu

Insights

For spina bifida (SB) patients with hydrocephalus in developing countries, delaying ventriculoperitoneal shunting 5-10 days after myelomeningocele closure significantly reduces shunt infection and malfunction rates.

Area of Science:

  • Pediatric Neurosurgery
  • Developmental Neuroscience
  • Clinical Outcomes Research

Background:

  • Western medical centers often perform simultaneous myelomeningocele closure and ventriculoperitoneal shunting for spina bifida (SB) with hydrocephalus (HC).
  • This approach is challenging in developing countries due to delayed patient presentation with open myelomeningoceles.
  • Delayed presentation necessitates evaluating optimal timing for shunting to minimize complications.

Purpose of the Study:

  • To assess the impact of shunting timing relative to myelomeningocele closure on shunt-related complications.
  • Specifically investigating rates of SB wound infection, shunt infection, and shunt malfunction.
  • To provide evidence-based recommendations for managing SB patients in resource-limited settings.

Main Methods:

  • Retrospective analysis of 276 spina bifida patients.
  • Patients underwent ventriculoperitoneal shunting within 11 days of myelomeningocele closure at Kijabe Hospital (1997-2007).
  • Data extracted from hospital records and analyzed using SPSS.

Main Results:

  • Shunting within 4 days of SB closure showed a fivefold higher shunt infection rate (23%) compared to 5-10 days post-closure (4.7%).
  • Shunt malfunction rates were significantly higher when shunting occurred before (33.3%) or simultaneously (15.4%) with closure versus 5-10 days after (13.9%).
  • No significant differences in wound infections or shunt complications were observed between shunting 5-10 days post-closure.

Conclusions:

  • In developing countries, for spina bifida patients requiring shunting with sterile CSF, insertion 5-10 days post-myelomeningocele closure is recommended.
  • This timing strategy reduces shunt infection and malfunction rates.
  • Optimizing shunt placement timing improves outcomes for delayed-presenting SB patients.
Abstract

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