What happens if a shunt fails
Eleanor Gray
Published Apr 21, 2026
A shunt blockage can be very serious as it can lead to an build-up of excess fluid in the brain, which can cause brain damage. This will cause the symptoms of hydrocephalus. Emergency surgery will be needed to replace the malfunctioning shunt.
What are the signs of a shunt malfunction in adults?
Signs of a shunt malfunction include headaches, vision problems, irritability, fatigue, personality change, loss of coordination, difficulty in waking up or staying awake, a return of walking difficulties, mild dementia or incontinence.
How do you know if your shunt is over draining?
Symptoms of overdrainage often include headache and are similar to the symptoms of underdrainage (hydrocephalus). Underdrainage occurs when CSF is not removed quickly, fluid builds up in the ventricles and the symptoms of hydrocephalus recur.
How many times can a shunt be replaced?
VP shunts are likely to require replacement after several years, especially in small children. The average lifespan of an infant’s shunt is two years. Adults and children over the age of 2 may not need a shunt replacement for eight or more years.How do I know if my shunt is malfunctioning?
- Headaches.
- Vomiting.
- Lethargy (sleepiness)
- Irritability.
- Swelling or redness along the shunt tract.
- Decreased school performance.
- Periods of confusion.
- Seizures.
What does a shunt malfunction headache feel like?
The headache can be severe and may be associated with vomiting, photophobia (aversion to light), and it can resemble, to some extent, a migraine. Small ventricles when the shunt fails and the ventricles can’t grow to accommodate cerebrospinal fluid (CSF).
How do you fix a blocked shunt?
Shunt blockages that are causing illness usually require an operation to replace or adjust the affected part of the shunt. Shunt infections are usually treated by removal of the whole shunt and a course of antibiotics before insertion of a new system.
Can shunt malfunction cause seizures?
Over a 15-year period, 16 of 544 (2.9%) visits to the emergency room for seizures culminated in shunt revision, and 16 of 1,831 (0.9%) shunt revisions were associated with a seizure. Although seizures in shunted patients are not uncommon, a seizure is seldom an indication of shunt malfunction.How long can you live with a brain shunt?
The shunt event-free survival is approximately 70% at 12 months and is nearly half that at 10 years, post-operatively. Shunts that are placed to channel CSF to other parts of the body may fail due to malfunction or infection. Infections occur in less than 10% of all surgeries.
What is the most common complication of VP shunt?Obstruction is the most common cause of ventriculoperitoneal shunt (VPS) malfunction. Infection is the second most common cause of VPS malfunction, which is more common in children. Pseudocyst is a late complication of VPS, which may present as abdominal pain and a palpable mass.
Article first time published onHow often should VP shunt be checked?
All younger patients with a shunt should probably be encouraged to seek a neurosurgical check up at least every three years, ideally at a dedicated hydrocephalus follow up clinic.
What are the symptoms of VP shunt Overdrainage?
Over-drainage: When the shunt allows cerebral fluid to drain from the brain’s ventricles more quickly than it is produced, the ventricles can collapse, tearing blood vessels and causing bleeding in the brain or blood clot, marked by severe headache, nausea, vomiting, seizure and other symptoms.
What happens if too much CSF is drained?
It is possible that the puncture of the ventricle or the opening of the dura will result in an intracranial hemorrhage. It is possible that if too much CSF is removed from the ventricles, either during a drainage procedure or when the ventricle is first punctured, the ventricle may collapse and occlude the catheter.
Why does my shunt hurt?
Usually a shunt is not tender and is a benign feature of the well child exam. New pain along a shunt or swelling around the tubing can be a sign of shunt failure. As tubing ages, a number of patients report intermittent pain along the shunt, particularly across the neck and upper chest wall.
What causes shunts to fail?
Shunt Complications The principal causes of shunt malfunction are infection, occlusion, intracranial hemorrhage, and overdrainage. The risk of shunt failure is greatest within the first year of insertion, estimated to be 10% to 20%, depending on the underlying cause of the hydrocephalus.
Can hydrocephalus cause death?
An excess of pressure on the brain is potentially harmful; thus hydrocephalus can cause permanent brain damage and even death.
What can make hydrocephalus worse?
Certain factors can increase the risk of developing hydrocephalus at any age, including: brain or spinal cord tumors. infections of the central nervous system such as bacterial meningitis. injury or stroke that causes bleeding in the brain.
What can you not do with a VP shunt?
Do not touch the valve on your head. It is okay for you to lie on the side of your head with the shunt. For 6 weeks, do not do any activity that may cause you to hit your head. You will probably be able to return to work in less than 1 week.
Can your head explode from hydrocephalus?
Occasionally, long-standing tension hydrocephalus can lead to formation of ventricular diverticula[1] or ventricular rupture. It can rupture into cisterns leading to spontaneous ventriculostomy[2] or may rupture through necrotic scalp skin leading to ‘spontaneous brain rupture’.
How long can adults live with normal pressure hydrocephalus?
Conclusions: Clinical improvement of patients with NPH can be sustained for 5-7 years in some patients with NPH, even if shunt revision surgery is needed multiple times.
How do you get rid of fluid on the brain naturally?
- Hyperbaric Oxygen Therapy (HBOT)
- A Ketogenic Diet of Anti-Inflammatory Foods.
- Transcranial Low-Level Light Therapy (LLLT)
- Regenerative Therapies.
What is chronic hydrocephalus?
Chronic hydrocephalus is a complex condition, the incidence of which increases with increasing age. It is characterised by the presence of ventricular enlargement in the absence of significant elevations of intracranial pressure.
Can hydrocephalus be congenital?
Congenital hydrocephalus is a buildup of excess cerebrospinal fluid (CSF) in the brain at birth. The extra fluid can increase pressure in the baby’s brain, causing brain damage and mental and physical problems. This condition is rare.
Can a VP shunt tube break?
Shunt fracture This is often a late complication and almost always occurs along the distal portion between the valve and peritoneum. With age, fibrous tissue becomes calcified and does not slide freely within the subcutaneous tissue then the tubing can crack.
Where does VP shunt drain?
The shunt is all inside the body, under the skin. The valve opens when the pressure in the brain gets too high. This lets fluid drain from the brain into the peritoneal space. From there, the extra fluid is absorbed into the bloodstream and filtered out in the kidneys.
How do you treat a VP shunt infection?
Treatment of a shunt infection may include removal of the infected hardware, placement of a drainage device, and use of IV or intraventricular antibiotics.