Analysis of factors affecting ventriculoperitoneal shunt survival in pediatric patients

Farid Khan1, Muhammad Shahzad Shamim, Abdul Rehman

  • 1Section Neurosurgery, Department of Surgery, The Aga Khan University Hospital, Karachi, Pakistan. drfaridkhan@hotmail.com

Insights

Ventriculoperitoneal (VP) shunt failure in pediatric hydrocephalus patients was analyzed over six years in a developing country. Factors like meningitis, aqueductal stenosis, and prematurity were linked to higher shunt failure rates.

Area of Science:

  • Neurosurgery
  • Pediatric Medicine
  • Global Health

Background:

  • Ventriculoperitoneal (VP) shunts are crucial for managing pediatric hydrocephalus but are prone to complications.
  • Developing countries face unique challenges in shunt management due to resource limitations.
  • Understanding factors affecting shunt failure is vital for improving patient outcomes.

Purpose of the Study:

  • To evaluate the 6-year experience of VP shunt insertion in pediatric patients in a developing country.
  • To identify specific factors contributing to VP shunt failure in this population.

Main Methods:

  • Retrospective analysis of 113 pediatric patients (<15 years) who underwent VP shunt insertion between 2006 and 2011.
  • Kaplan-Meier curves and Logrank (Cox-Mantel) tests were used to analyze shunt survival rates.

Main Results:

  • The most common causes of hydrocephalus were congenital (19.5%), brain tumors (14.2%), and postcranial surgery (13.3%).
  • Overall shunt failure rate was 23% with a median time to failure of 68 days.
  • Meningitis, aqueductal stenosis, postcranial surgery, Caesarean delivery, congenital abnormalities, prior mass lesion excision, brain tumor location, and prematurity were associated with increased shunt failure.

Conclusions:

  • Premature infants and patients with specific conditions (meningitis, aqueductal stenosis, postcranial surgery hydrocephalus, congenital abnormalities, prior mass lesion excision) face higher risks of early shunt failure.
  • The observed 23% shunt failure rate is lower than previously reported in literature.
  • Rigorous periodic evaluation of patients with VP shunts in situ may contribute to improved outcomes.
Abstract

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