Endoscopic third ventriculostomy for pediatric tumor-associated hydrocephalus

Area of Science:

• Neurosurgery
• Pediatric Oncology
• Medical Technology

Background:

• Hydrocephalus secondary to central nervous system (CNS) tumors traditionally managed with ventriculoperitoneal shunting (VPS).
• Endoscopic third ventriculostomy (ETV) presents an alternative with potentially lower complication rates.
• Limited literature specifically addresses ETV for tumor-associated hydrocephalus.

Purpose of the Study:

• To review the existing literature on ETV for tumor-associated hydrocephalus in pediatric patients.
• To determine the frequency of ETV use and its failure rates in this population.
• To compare ETV outcomes with traditional VPS.

Main Methods:

• Systematic literature search of PubMed using keywords: "endoscopic third ventriculostomy," "tumor," and "pediatric."
• Exclusion of adult-only studies, case reports, and pre-2000 publications.
• Analysis of hydrocephalus etiology, ETV failure rates, and comparison with VPS failure rates.

Main Results:

• Analyzed 32 studies involving pediatric patients; tumors caused hydrocephalus in 38.6% of ETV cases.
• ETV failure rates ranged from 6% to 38.6%, with a pooled rate of 18.3%.
• ETV showed similar overall failure rates to VPS, but with a lower risk of infection.

Conclusions:

• ETV is a common and appropriate treatment for select pediatric patients with tumor-related hydrocephalus.
• ETV failure rates are comparable to VPS for tumor-associated hydrocephalus.
• ETV offers a reduced risk of infection compared to VPS in managing hydrocephalus secondary to CNS tumors.