VP Shunt Surgery for Hydrocephalus & NPH
A VP shunt is a thin silicone tube that drains excess spinal fluid from the brain’s ventricles to the abdomen, where it is absorbed. A programmable valve regulates flow and can be adjusted in the office with a magnet — no further surgery. For some patients, an endoscopic third ventriculostomy (ETV) creates an internal bypass instead, avoiding hardware altogether.
The operation takes about an hour, and most NPH patients notice better walking within days to weeks.
Who it is for
- Normal pressure hydrocephalus with a positive spinal tap or drain trial
- Obstructive or communicating hydrocephalus in adults
- Shunt malfunction requiring revision
- ETV: obstructive hydrocephalus with suitable anatomy
Why we use it
- Adjustable without surgery
- Reversal of walking, thinking and bladder symptoms in NPH
- One-hour procedure with a 1–2 night stay
How the procedure is done
- General anesthesia; a small hair-sparing incision behind the hairline and a small abdominal incision.
- A catheter is placed into the ventricle with navigation or ultrasound.
- The valve is seated under the scalp and the tubing tunneled under the skin to the abdomen.
- Incisions are closed; the valve setting is confirmed with X-ray.
Recovery
Walking the next day; home in 1–2 days. Valve adjustments at follow-up visits fine-tune drainage. Inform MRI technologists that you have a programmable valve.
Risks, stated plainly
Infection (the most important early risk), over- or under-drainage (usually corrected by adjustment), subdural hematoma from over-drainage, shunt blockage requiring revision. Dr. Daggubati reviews the specific risks for your situation in person before any decision is made.
Preparing for this surgery
Dr. Daggubati has written detailed guides for this procedure covering medications to stop, prehabilitation, the day of surgery, and a week-by-week recovery timeline.
Common questions
Can I have an MRI with a shunt?
Yes. Programmable valves are MRI-safe, but the setting must be checked after the scan; we provide a card identifying your valve.