What are the steps for placing a ventriculoperitoneal shunt?

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Last updated: April 2, 2026 • View editorial policy

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Ventriculoperitoneal Shunt Placement: Surgical Steps

A standardized VP shunt protocol combining neuronavigation for ventricular catheter placement and laparoscopic guidance for peritoneal catheter insertion represents the optimal approach, reducing overall shunt failure by 44% compared to traditional techniques 1.

Preoperative Preparation

Infection prevention protocol is mandatory and includes:

  • Preoperative antibiotic prophylaxis (administered before incision)
  • Use of antibiotic-impregnated shunt catheters
  • Antimicrobial sutures for skin closure
  • Standardized surgical protocol adherence 2

This approach has achieved "zero infection" rates in some series 3.

Surgical Steps

Phase 1: Ventricular Catheter Placement

Entry point selection:

  • Both frontal and occipital-parietal entry points are acceptable options 4, though anterior (frontal) entry may be preferable in most cases 2
  • In infants specifically, occipital entry may be advantageous due to skull growth effects that cause frontal catheters to shorten and migrate over time 4
  • Create burr hole at chosen entry site

Catheter insertion technique:

  • Use electromagnetic stereotactic neuronavigation for optimal accuracy - this achieves 100% first-pass ventricular access and 79% optimal tip positioning 5, 1
  • Target: frontal horn, away from choroid plexus 4
    • Catheter tip must be surrounded by CSF (not touching ventricular wall or brain tissue)
    • This positioning is the single greatest predictor of shunt survival 4
  • Alternative targets (atrium, occipital horn) are used occasionally but have higher proximal occlusion rates 4

Phase 2: Valve Placement

  • Connect ventricular catheter to valve at postauricular region
  • Ensure valve is positioned in subgaleal plane (not subcutaneous) to prevent skin breakdown 2

Phase 3: Subcutaneous Tunneling

  • Tunnel from postauricular region to abdominal entry point
  • Maintain proper plane: subgaleal over skull, then subcutaneous over neck/chest
  • Gentle tissue handling is critical to prevent wound complications 2

Phase 4: Peritoneal Access (Critical Step)

Laparoscopic approach is superior to minilaparotomy - it reduces distal obstructions and allows direct visualization 2, 1:

Technique:

  • Make infra-umbilical incision using Hasson technique 6
  • Establish pneumoperitoneum
  • Insert 10-mm laparoscope to identify adhesion-free entry site
  • Make 5-mm skin incision at right upper quadrant (typical site)
  • Under direct laparoscopic vision, introduce peritoneal catheter using either:
    • Split-type metallic puncture cannula (10-12 Fr) 6
    • Seldinger technique with sheath 7
    • Peritoneal trocar 8

Alternative periumbilical approach (especially for infants):

  • Single incision along natural crease inferior to umbilicus
  • 1-mm fascial incision in linea alba during temporary Valsalva
  • Insert trocar and pass catheter 8
  • Excellent cosmetic results, 5% infection rate

Phase 5: Catheter Positioning

Under direct laparoscopic visualization:

  • Anchor distal catheter through small hole in falciform ligament
  • Position in right retrohepatic space 1
  • Ensure catheter is free from omentum, adhesions, and bowel
  • Confirm adequate catheter length in peritoneum (12-15 cm typical) 6
  • Verify CSF flow under direct visualization 6, 7

Phase 6: Closure

  • Remove laparoscopic instruments
  • Close fascial layers
  • Use antimicrobial sutures for skin closure 2
  • Meticulous skin closure technique prevents wound breakdown

Phase 7: Confirmation

  • Confirm shunt function
  • Postoperative imaging to verify catheter positions

Key Technical Nuances

Critical factors for success:

  • Mean operative time: 35-76 minutes 8, 5 - shorter duration reduces infection risk
  • Gentle tissue handling throughout
  • Proper tunneling plane (subgaleal, not subcutaneous over valve)
  • Direct visualization of peritoneal catheter placement and function

Common Pitfalls to Avoid

  • Avoid placing catheter tip near choroid plexus or ventricular wall - this is the primary cause of proximal obstruction 4
  • Avoid blind peritoneal insertion - laparoscopy reduces distal failures 2
  • Avoid subcutaneous valve placement - causes skin erosion 2
  • In infants, frontal entry may lead to catheter migration with growth - consider occipital approach 4

Evidence Quality Note

The combination of neuronavigation and laparoscopy represents the highest quality contemporary evidence 1, demonstrating superior outcomes compared to traditional freehand and minilaparotomy techniques. The infection prevention protocol is supported by multiple studies showing dramatic reduction in shunt infections when rigorously applied 3, 2.

References

5
Research

Real-time three-dimensional robotic C-arm navigation for ventriculoperitoneal shunt placement: a single-center retrospective study.

Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia, 2026

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