Ventriculopleural shunts in a pediatric population: a review of 170 consecutive patients

Eisha A Christian1, Jeffrey J Quezada2, Edward F Melamed2

  • 11Department of Neurological Surgery, Kaiser Permanente Medical Center, Los Angeles.

Insights

Ventriculopleural shunts are effective for pediatric hydrocephalus, but younger children (<10 years) face higher pleural effusion risks. Complication rates are comparable to ventriculoperitoneal shunts.

Area of Science:

  • Neurosurgery
  • Pediatric Surgery
  • Biomedical Engineering

Background:

  • Hydrocephalus management often requires cerebrospinal fluid (CSF) diversion.
  • Ventriculoperitoneal (VP) and ventriculoatrial (VA) shunts are common, but alternative distal termini are sometimes necessary.
  • The pleural space serves as a less common alternative distal site for CSF shunts.

Purpose of the Study:

  • To evaluate the outcomes and complications of using the pleural space as the distal terminus for ventricular CSF-diverting shunts in pediatric patients.
  • To compare complication rates of ventriculopleural (VPl) shunts with other shunt types.
  • To identify risk factors for VPl shunt complications, particularly pleural effusion.

Main Methods:

  • A retrospective review of 170 pediatric patients who underwent VPl shunt insertion or revision between 1978 and 2018.
  • Data collected included patient demographics, hydrocephalus etiology, shunt history, reasons for VPl shunt use, valve types, and complication occurrences.
  • Analysis focused on shunt revisions, reasons for revision, shunt infections, and pleural effusion development.

Main Results:

  • Of 170 patients, 73 (43%) required shunt revision, most commonly for proximal obstruction (44%).
  • Pleural effusion occurred in 22 patients (30%), necessitating distal terminus revision; it was more common in shunts without an antisiphon valve.
  • Children under 10 years had a significantly higher rate of pleural effusion (24%) requiring revision compared to older children (11%).
  • Shunt infection rate was 4.2% per procedure and 8.2% per patient.

Conclusions:

  • VPl shunts in children under 10 years are associated with a higher incidence of symptomatic pleural effusion requiring revision.
  • Overall complication rates for VPl shunts are comparable to those of VP shunts.
  • For patients over 10 years, VPl shunts are a viable alternative to VA shunts when the peritoneal cavity is unsuitable.
Abstract

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