Choroid plexus cauterization may help many infants avoid shunt surgery for Chiari II hydrocephalus

In a study of 53 infants, adding choroid plexus cauterization to an endoscopic third ventricle procedure improved shunt-free survival, especially as babies got older.

Abstract editorial illustration accompanying the article: Choroid plexus cauterization may help many infants avoid shunt surgery for Chiari II hydrocephalus

Editorial illustration — not from the study.

For infants under 12 months with hydrocephalus after myelomeningocele repair, researchers evaluated endoscopic third ventriculostomy plus bilateral choroid plexus cauterization as a primary treatment. Success was defined as staying shunt-free for 12 months along with clinical and radiological improvement.

Across age groups, the shunt-free success rate rose with age: 54% in the youngest group (<3 months), 63% in babies aged 3–6 months, and 67% in those aged 6–12 months. When treatment failed, most infants needed a ventriculoperitoneal shunt, and meningitis occurred in 15% of the cohort.

Success rose with age

In 53 infants (mean age 3.4 months), shunt-free success after ETV plus choroid plexus cauterization was 54% for those under 3 months, 63% for ages 3–6 months, and 67% for ages 6–12 months. Of 20 treatment failures, 14 required a ventriculoperitoneal shunt, and 6 were managed with repeat endoscopy for stoma closure. Meningitis was the most common complication (15%), and all infants with meningitis eventually required a ventriculoperitoneal shunt.

Reducing shunt dependence

The study addresses whether adding choroid plexus cauterization to endoscopic third ventriculostomy can reduce reliance on shunt surgery for infants with Chiari II–associated hydrocephalus. It reports lower shunt dependency in this single-treatment approach and suggests that timing within the first year of life may matter for success.

Retrospective evidence, no direct comparison

This is a retrospective study of 53 infants at a single setting, using shunt-free survival over a 12-month follow-up period as the definition of success. Because there is no randomized comparison group of endoscopic third ventriculostomy alone or ventriculoperitoneal shunts, the design cannot isolate how much of the outcome difference—if any—is specifically attributable to choroid plexus cauterization. The abstract also does not provide longer-term follow-up beyond 12 months or detailed reasons for choosing the procedure in each case.

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