Endoscopic Third Ventriculostomy (ETV) — Anoki

Endoscopic Third Ventriculostomy (ETV)

A shunt-free option for selected cases of hydrocephalus

ETV creates a new, natural pathway for cerebrospinal fluid to drain — without implanting any permanent hardware. Dr. Rajesh Pathi will explain honestly whether it's a good fit for your specific condition.

Book a Consultation Call the Clinic

Neuroendoscopy equipment or ventricular imaging≈ 540 × 400px

No tubing, no implant, no shunt to maintain

For patients where it's a suitable option, ETV works with the brain's own fluid pathways rather than adding hardware — meaning no valve settings to manage and no shunt-related infection risk over time. It isn't the right choice for every type of hydrocephalus, but when it is, it offers real, lasting advantages.

MCh

Neurosurgery Super-Specialization

Endoscopic

Minimally Invasive Technique

No Implant

Where Suitable

Case-by-Case

Candidacy Carefully Assessed

Diagram of third ventricle and CSF flow≈ 540 × 400px

In plain language

How ETV actually works

In certain types of hydrocephalus, fluid becomes blocked at a specific point along its normal pathway, causing pressure to build. ETV uses a thin endoscope, passed through a small opening in the skull, to create a new opening in the floor of the third ventricle — a chamber deep in the brain.

This new opening lets fluid bypass the blockage and drain through its own natural channels, restoring normal circulation without any implanted device.

Is it right for you?

Who is typically a good candidate for ETV

ETV works well for some types of hydrocephalus, and isn't suitable for others — this distinction matters.

Often suitable for

Obstructive hydrocephalus, where fluid flow is blocked at a specific point
Patients old enough for the ventricular anatomy to support the procedure (typically beyond early infancy, assessed individually)
Certain cases of aqueductal stenosis or similar blockages

Usually not suitable for

Communicating hydrocephalus, where fluid isn't blocked but isn't absorbed properly
Very young infants, where anatomy may not yet support the procedure reliably
Some cases following infection or bleeding, depending on the specific anatomy

This is a general guide, not a diagnosis — your imaging and specific type of hydrocephalus will determine whether ETV is genuinely appropriate for you.

How it's done

The ETV procedure, step by step

A small opening in the skull

A small burr hole is made to allow the endoscope access to the brain's fluid spaces.

Guided to the third ventricle

The endoscope is carefully guided to the floor of the third ventricle, with a clear view throughout.

Creating the new opening

A small opening is made in the floor of the ventricle, away from critical blood vessels, to let fluid flow through.

Confirming flow

The new pathway is checked to confirm fluid is draining as intended before the procedure ends.

What to expect

Your ETV journey, stage by stage

Step 1

Detailed imaging review

Confirming your hydrocephalus type and anatomy are suitable for ETV.

Step 2

Honest candidacy discussion

Including what happens if ETV isn't appropriate or doesn't work for you.

Step 3

Preparation

Clear instructions on medication, fasting, and what to expect.

Step 1

Anesthesia & positioning

Performed under general anesthesia, typically taking under an hour.

Step 2

The endoscopic procedure

Performed with precision, using real-time visualization throughout.

Step 3

Post-op monitoring

Close observation before you're moved to a ward.

Step 1

Short hospital stay

Often just a few days, shorter than typical shunt surgery recovery.

Step 2

Early follow-up imaging

Confirming the new pathway is working as intended.

Step 3

Longer-term monitoring

Periodic checks, since a small number of ETVs can close over time.

If ETV doesn't fully work, or closes later

In a minority of cases, the new opening can narrow or close over time, and symptoms can return. Watch for the same signs as a shunt malfunction:

Return of original headache or symptoms New nausea or vomiting Increased sleepiness In infants: rapid head growth or a bulging soft spot

If these appear, contact us promptly — in some cases a repeat ETV or a shunt may then be considered.

Dr. Rajesh Pathi portrait≈ 340 × 420px

Your Neurosurgeon

Dr. Rajesh Pathi

MBBS, MS, MCh, FMISS — Senior Consultant Neuro & Spine Surgeon

Dr. Pathi offers ETV where it's genuinely the right fit, and is equally clear when a shunt is the more reliable option for a specific case — the goal is always the technique best suited to you, not the most modern-sounding one.

Book a Consultation View Full Profile

Common questions

Questions patients & parents often have

Is ETV always better than a shunt?

Not universally — it's a better fit for some patients and types of hydrocephalus, while a shunt remains the more reliable option for others. Dr. Pathi will explain which applies to you.

How will I know if the ETV worked?

Through improvement in symptoms and follow-up imaging confirming the new fluid pathway is functioning. You'll have scheduled checks to monitor this over time.

What happens if ETV doesn't work for me?

A VP shunt would then be considered as an alternative. This possibility is discussed with you honestly before the procedure, not as a surprise afterward.

How long does recovery from ETV take?

Many patients recover within a few weeks, often faster than shunt surgery, though this varies by individual and underlying cause.

Wondering if ETV is the right option for your hydrocephalus?

Book a consultation with Dr. Rajesh Pathi at our Pragathi Nagar clinic.

Book an Appointment Call the Clinic