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PubMed This is a summary of 20 peer-reviewed journal articles Updated
Neurosurgery

Can a VP Shunt Be Permanently Removed Later in Life?

At a Glance

While children do not outgrow hydrocephalus and most require a lifelong VP shunt, some patients can safely have their shunt removed later in life. This is known as shunt independence and typically occurs through an ETV conversion surgery or naturally arrested hydrocephalus.

For parents of a child with congenital hydrocephalus, learning that a ventriculoperitoneal (VP) shunt is typically a lifelong necessity can be overwhelming [1]. It is very rare for a child to simply “outgrow” hydrocephalus, and the biological need for cerebrospinal fluid (CSF) diversion usually does not go away as they grow. However, there are specific, carefully monitored circumstances where a person can achieve what doctors call shunt independence—meaning they no longer rely on a mechanical shunt. This usually happens either through a secondary surgical procedure or because the body naturally adapts over time.

Growing With a Shunt

A common hope among parents is that as a child gets bigger, they will eventually grow out of their condition. While a child does not outgrow the hydrocephalus itself, their physical growth does impact the shunt hardware.

During the initial surgery, pediatric neurosurgeons usually leave extra tubing coiled in the child’s abdomen [2]. As the child grows taller, this slack gradually uncoils. Sometimes, during significant growth spurts in childhood or adolescence, a child will require a surgical revision to lengthen the tubing [2]. This revision is a structural adjustment to accommodate their growing body, not a sign that the condition is worsening or going away.

ETV Conversion: A Pathway to Shunt Independence

The most common way a patient becomes permanently shunt-free later in life is through a procedure called an Endoscopic Third Ventriculostomy (ETV). If a child’s shunt fails, or if a surgeon determines the child is a good candidate, they may perform an ETV conversion [3][4].

During an ETV, the surgeon creates a small, natural bypass at the base of the brain, allowing the trapped fluid to drain without needing a mechanical tube [5].

  • Success Rates: In patients whose shunts have failed, converting to an ETV has a success rate of approximately 60% [6].
  • Patient Selection: The likelihood of success depends heavily on the original cause (etiology) of the hydrocephalus [7]. For example, conditions involving a clear blockage, like aqueductal stenosis, tend to have higher ETV success rates than cases where the fluid simply cannot be absorbed [5].
  • Hardware Removal: If an ETV is successful, the old shunt hardware may be entirely removed during surgery, or parts of it may be left in the body if removing it poses unnecessary risks [8].
  • Risks and Fallbacks: While an ETV avoids the long-term hardware risks of a shunt, it is a major brain surgery with its own risks, including immediate procedural failure [9][10]. If an ETV fails to manage the hydrocephalus adequately, the standard fallback is to place a new VP shunt to ensure the patient’s safety [11].

Arrested Hydrocephalus

In some cases, the body naturally finds a way to balance the production and absorption of CSF without the help of a functioning shunt. This state is known as arrested hydrocephalus or compensated hydrocephalus [12][13].

Sometimes, a patient is discovered to have a broken or disconnected shunt that has not been working for years, yet they experience no symptoms because their hydrocephalus has arrested [14]. This silent failure is usually discovered during routine, scheduled surveillance MRIs or check-ups [15]. While these individuals are technically shunt-independent, their condition still requires careful monitoring. Approximately 15% of patients with arrested hydrocephalus may “decompensate” (worsen) later in life and require surgical intervention again, even after years of stability [15][16].

If a shunt is non-functional and the patient is stable, neurosurgeons may choose to safely remove the old hardware. Removing a non-functional shunt is often considered the optimal treatment to avoid future complications, though doctors will always weigh the benefits against the risks of surgery [8][17].

The Importance of Lifelong Follow-Up

Whether a child relies on a VP shunt, successfully converts to an ETV, or naturally achieves arrested hydrocephalus, congenital hydrocephalus is a lifelong condition. Complications like mechanical failures, obstructions, or infections can happen at any age [18]. Similarly, an ETV bypass can close or fail years after the initial procedure [19].

Because decompensation or shunt failure can happen unexpectedly, it is crucial to recognize the warning signs of increased intracranial pressure (ICP), such as:

  • Severe or recurring headaches (especially in the morning or when lying down)
  • Unexplained vomiting or nausea
  • Vision changes (blurry or double vision)
  • Extreme lethargy, drowsiness, or changes in personality

While the frequency of shunt revisions often drops as a child reaches adulthood [20], maintaining an ongoing relationship with a neurosurgeon and continuing regular imaging check-ups is essential for lifelong health.

Common questions in this guide

Can a child eventually outgrow hydrocephalus?
No, children do not biologically outgrow hydrocephalus. While their body grows taller and may require surgical adjustments to the shunt tubing, the underlying need for fluid diversion typically remains lifelong.
What is an ETV conversion?
An Endoscopic Third Ventriculostomy (ETV) is a surgery that creates a natural bypass for cerebrospinal fluid to drain without a mechanical tube. It is sometimes used as a permanent alternative if a patient's VP shunt fails and they are a good candidate.
What does arrested hydrocephalus mean?
Arrested hydrocephalus occurs when the body naturally balances the production and absorption of brain fluid without the help of a working shunt. Patients in this state are shunt-independent, but they still require lifelong monitoring because the condition can worsen later in life.
What are the signs of shunt failure or increased intracranial pressure?
Warning signs include severe or recurring headaches, especially in the morning or when lying down, unexplained nausea or vomiting, blurry or double vision, and extreme lethargy or personality changes. You should seek immediate medical attention if these occur.
How does a child's physical growth affect their VP shunt?
Surgeons usually leave extra coiled tubing in the abdomen during the initial placement. As your child grows taller, this slack gradually uncoils. However, during significant growth spurts, a planned surgical revision may be needed to lengthen the tubing.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Is my child's specific type of hydrocephalus a potential candidate for an ETV conversion in the future?
  2. 2.What are the signs of a silent or slow shunt failure as my child gets older, and how often will we monitor for this with MRIs?
  3. 3.Approximately how much extra tubing was left in the abdomen during the initial surgery to accommodate growth?
  4. 4.Will my child need a scheduled revision for tubing length as they grow, or do we only revise if there is a malfunction?
  5. 5.If my child's shunt is ever determined to be non-functional but their hydrocephalus is arrested, do you recommend removing the old hardware?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

Related questions

Can a Child With a VP Shunt Play Sports or Ride Coasters?Does Baby Head Size Normalize After Hydrocephalus Surgery?Does mild fetal ventriculomegaly progress to hydrocephalus?How Often Do VP Shunts Need Replacement in Children?How to Check Your Baby's Soft Spot for HydrocephalusStomach Bug or VP Shunt Failure? How to Tell the DifferenceIs There a Link Between Hydrocephalus and Autism?What Are Sunset Eyes in Infants With Hydrocephalus?How Does Congenital Hydrocephalus Affect Learning?What is Choroid Plexus Cauterization for Hydrocephalus?Will Congenital Hydrocephalus Happen in My Next Pregnancy?What Makes a Baby a Candidate for ETV Surgery?Why Skip Routine MRIs for Hydrocephalus?Why Is a Fetal MRI Recommended After an Ultrasound?

References

References (20)
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This page provides general information about VP shunts and hydrocephalus for educational purposes. It is not intended as medical advice; always consult your neurosurgeon regarding shunt management and surgical options.

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