Treatment: ETV & Other Procedures
Endoscopic third ventriculostomy (ETV)
Endoscopic third ventriculostomy is a procedure that creates a new opening in the floor of the third ventricle to let cerebrospinal fluid bypass a blockage, often avoiding a shunt.
In short: Endoscopic third ventriculostomy (ETV)
- It creates a new pathway for CSF to bypass a blockage.
- It is often used for obstructive hydrocephalus, such as aqueductal stenosis.
- It can avoid the need for an implanted shunt.
- Its success depends on the cause, age, and other factors.
What it is
Endoscopic third ventriculostomy (ETV) is a minimally invasive procedure in which a surgeon, using an endoscope, creates a small opening in the floor of the third ventricle. This allows cerebrospinal fluid to flow out of the ventricle and bypass a downstream blockage, restoring a more natural drainage route.
Understanding Endoscopic third ventriculostomy (ETV)
ETV is especially suited to obstructive (non-communicating) hydrocephalus, such as aqueductal stenosis, where the blockage is within the ventricular system. By creating a new outlet from the third ventricle into the CSF spaces at the base of the brain, ETV lets fluid bypass the blockage — without implanting a shunt. This avoids the long-term issues of shunt hardware (such as malfunction and infection), which is a major advantage. However, ETV is not suitable for every type of hydrocephalus, and its success varies with the cause, the person's age (it tends to be less successful in young infants), and other factors. When successful, it can provide durable control of hydrocephalus.
Why it matters
Understanding ETV helps families see that, for suitable cases of obstructive hydrocephalus, there is an option that bypasses the blockage without an implanted shunt — avoiding shunt hardware issues — though its success depends on the individual situation.
Common questions
What does ETV do?
It creates a new opening to let CSF bypass a blockage.
What is its main advantage?
It can avoid the need for an implanted shunt.
Is it suitable for everyone?
No — suitability and success depend on the cause, age, and other factors.
Bottom line
Endoscopic third ventriculostomy creates a new CSF pathway to bypass a blockage, often avoiding a shunt, with success depending on the individual situation.
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