Prior endoscopic third ventriculostomy does not increase ventriculoperitoneal shunt failure rate

Area of Science:

• Neurosurgery
• Pediatric Neurosurgery
• Hydrocephalus Management

Background:

• Hydrocephalus is a common neurological condition in children, often requiring surgical intervention.
• Endoscopic third ventriculostomy (ETV) and ventriculoperitoneal (VP) shunts are primary treatment modalities.
• Understanding the long-term efficacy of these procedures is crucial for optimal patient care.

Purpose of the Study:

• To investigate whether a prior endoscopic third ventriculostomy (ETV) affects the failure rate of subsequent ventriculoperitoneal (VP) shunts.
• To compare the revision rates and patterns between primary VP shunts and VP shunts placed after ETV failure.
• To inform clinical decision-making regarding the sequence of hydrocephalus treatment.

Main Methods:

• Retrospective review of a pediatric operative database and patient records from January 2012 to December 2015.
• Inclusion criteria: first VP shunt or ETV placement.
• Statistical analysis of failure rates, revision rates, and reasons for revision, including literature review.

Main Results:

• Eighty-six children were analyzed: 61 with primary VP shunts and 25 with VP shunts post-ETV.
• VP shunt failure rates were similar: 47.5% for primary VP shunts and 48% for VP shunts post-ETV.
• One-year revision rates were comparable (34.4% vs. 36%), with shunt blockage being the most common reason for revision in both groups.

Conclusions:

• No significant difference in failure rate or pattern was observed between primary VP shunts and VP shunts placed after ETV.
• A trial of ETV is recommended when feasible, offering a chance for shunt independence.
• Further research may explore factors influencing ETV success and VP shunt longevity.