ETV Surgery for Hydrocephalus: A Shunt-Free Alternative
By Anshika
Everything you need to know about Endoscopic Third Ventriculostomy, including candidacy, procedure, recovery, and success rates.
Endoscopic Third Ventriculostomy (ETV) is a surgical treatment for hydrocephalus that eliminates the need for a shunt in carefully selected patients.
What Is ETV?
A neuroendoscope is inserted into the brain's ventricular system, and a small hole is made in the floor of the third ventricle, creating an alternative pathway for CSF to bypass the obstruction and be absorbed naturally.
Who Is a Candidate?
ETV is most successful in patients with obstructive hydrocephalus — where CSF flow is blocked between the ventricles. The ideal candidate has aqueductal stenosis.
The ETV Success Score (ETVSS)
Predicts success based on: age (older = higher success), etiology (aqueductal stenosis = best), and prior shunt (no prior shunt = better).
Advantages Over Shunts
No foreign body implanted, no risk of shunt malfunction or infection, freedom from shunt-related lifestyle considerations.
Disadvantages
Not suitable for all types of hydrocephalus. Lower success rate in infants. Failure can occur months or years later.