When should ventriculoperitoneal shunt placement be performed in cases with myelomeningocele and hydrocephalus?

Ibrahim Suat Oktem1, Ahmet Menkü, Abdurrahman Ozdemir

  • 1Erciyes University Medical Faculty, Neurosurgery, Kayseri, Turkey. oktemis@erciyes.edu.tr

Turkish Neurosurgery
|December 25, 2008
PubMed
Abstract

Insights

Placing ventriculoperitoneal shunts (VPS) during the same session as myelomeningocele (MM) sac repair increases infection risks. Separate VPS placement after MM repair is recommended to ensure patient safety and reduce complications.

Area of Science:

  • Neurosurgery
  • Pediatric Surgery
  • Infectious Disease

Background:

  • Shunt infections are a significant complication in hydrocephalus treatment, with rates ranging from 2-39%.
  • Infections associated with shunts are particularly prevalent in newborns with myelomeningocele (MM).

Purpose of the Study:

  • To evaluate the impact of simultaneous versus staged surgical procedures on shunt infection rates in patients with myelomeningocele and hydrocephalus (HS).
  • To determine the optimal timing for ventriculoperitoneal shunt (VPS) placement relative to MM sac repair.

Main Methods:

  • A retrospective analysis of 94 patients with MM and HS treated between 1994 and 2005.
  • Comparison of shunt infection rates between two groups: Group A (staged VPS placement) and Group B (simultaneous VPS placement with MM sac repair).

Main Results:

  • Group A (staged) had lower rates of wound infection (7 vs 5), CSF fistula (5 vs 3), and VPS infection (9 vs 6) compared to Group B (simultaneous).
  • Meningitis occurred in 6 patients across both groups, indicating a general risk regardless of surgical timing.

Conclusions:

  • Simultaneous placement of ventriculoperitoneal shunts during MM sac repair is associated with increased infection risks and is not recommended.
  • VPS placement should be performed in a separate surgical session following MM sac repair, after confirming the absence of infection.