Pediatric neurosurgery is a surgical specialty focused on treating conditions of the brain, spinal cord, and nerves in children, from before birth through adolescence. These surgeons handle everything from brain tumors and hydrocephalus to spinal defects and epilepsy, operating on anatomy that is still growing and developing. The field requires years of additional training beyond standard neurosurgery and uses techniques specifically adapted for smaller, more delicate structures.
Who Pediatric Neurosurgeons Treat
Pediatric neurosurgeons care for patients of all ages within childhood: fetuses still in the womb, newborns, infants, children, and teenagers. In some cases, they also treat adults over 18 who have conditions that began in childhood or that fall squarely within pediatric expertise.
Beyond the nervous system itself, these surgeons also operate on the structures that protect and support it. That includes the skull, spinal vertebrae, spinal disks, the protective membranes surrounding the brain and spinal cord, and the blood vessels that supply them. A child referred to a pediatric neurosurgeon may have a problem with any of these structures.
Training Required
Becoming a pediatric neurosurgeon is one of the longest training paths in medicine. After medical school, a surgeon completes seven years of neurosurgery residency, which includes at least one year of general surgical training. After residency, an additional one-year fellowship in pediatric neurosurgery provides specialized experience with childhood conditions, smaller instruments, and the developmental considerations unique to young patients.
That adds up to roughly 15 years of education and training after high school: four years of college, four years of medical school, seven years of residency, and one year of fellowship.
Why Children Need Specialized Surgeons
Children are not simply small adults. Their brains and spines are still developing, their skulls may not yet be fully fused, and their bodies respond differently to anesthesia and surgical stress. Pediatric neurosurgery exists as a distinct specialty precisely because these physiological and developmental differences create challenges that require dedicated expertise.
The equipment matters too. Standard neurosurgical tools designed for adult anatomy can be too large or imprecise for an infant’s brain. Pediatric neurosurgery programs maintain specialized instruments, smaller ventilators, and intensive care setups configured for children. Operating on a two-month-old with hydrocephalus is a fundamentally different challenge than treating an adult with the same condition.
Common Conditions Treated
The range of conditions is broad, but several come up repeatedly in pediatric neurosurgery practices.
- Hydrocephalus: A buildup of fluid in the brain’s ventricles that creates dangerous pressure. This is one of the most common reasons children see a pediatric neurosurgeon.
- Brain tumors: Central nervous system tumors are the most common solid tumor, the most common cancer, and the leading cause of cancer death in children and adolescents ages 0 to 19.
- Craniosynostosis: A condition where the bones of a baby’s skull fuse too early, restricting brain growth and sometimes distorting head shape.
- Spina bifida and neural tube defects: Birth defects where the spinal cord or its protective covering doesn’t form completely.
- Chiari malformation: A structural problem where brain tissue extends into the spinal canal.
- Epilepsy: When seizures can’t be controlled with medication, surgery may be an option.
- Spinal cord tumors: Growths on or near the spinal cord that can cause pain, weakness, or paralysis.
- Head injuries: Traumatic brain injuries from falls, accidents, or abuse that require surgical intervention.
Other conditions include arachnoid cysts, brachial plexus injuries (nerve damage in the shoulder, often from birth), cerebral palsy (when surgery can reduce spasticity), and vascular abnormalities in the brain or spine.
Brain Tumors in Children
Childhood brain tumors differ significantly from adult brain tumors in type, location, and outlook. The most common type in children is pilocytic astrocytoma, accounting for about 15% of all pediatric brain and central nervous system tumors. It’s a slow-growing tumor with an excellent prognosis: the five-year survival rate is nearly 97%.
Not all pediatric brain tumors carry such favorable numbers. Medulloblastoma, a fast-growing tumor that typically forms in the back of the brain, has a five-year survival rate of about 74%. High-grade gliomas, the most aggressive category, have a five-year survival rate of roughly 34%. The type, location, and grade of a tumor determine both the surgical approach and the overall treatment plan, which often involves a team of oncologists, radiation specialists, and neurosurgeons working together.
How Hydrocephalus Is Managed
Hydrocephalus treatment has two main surgical options: implanting a shunt or performing a procedure called endoscopic third ventriculostomy (ETV). The choice depends on the child’s age, the cause of the hydrocephalus, and the specific anatomy involved.
A shunt is a thin tube placed inside the brain that drains excess fluid to another part of the body, usually the abdomen, where it can be absorbed. Shunts have been the standard treatment for decades, but they come with drawbacks. They can malfunction, become infected, or need replacement as a child grows. Complication rates after shunt placement run around 31%.
ETV is a newer, less invasive alternative. The surgeon uses a tiny camera to create a small hole in the floor of a brain ventricle, allowing trapped fluid to flow naturally to where it can be absorbed. Complication rates are lower, around 17%. ETV failures tend to happen early, within the first two months. If the procedure holds past that point, it typically lasts longer than a shunt. Shunts, by contrast, fail gradually over time and eventually drop below ETV’s success rate at around the six-month mark. For infants under 12 months with certain types of hydrocephalus, ETV combined with a related procedure (cauterization of the tissue that produces spinal fluid) has shown particularly promising results.
Surgery Before Birth
One of the most remarkable developments in pediatric neurosurgery is fetal surgery for spina bifida. In select cases, surgeons can repair the spinal defect while the baby is still in the womb, typically between 23 and 26 weeks of pregnancy.
This approach was validated by a landmark clinical trial called the MOMS trial, which established strict eligibility criteria. The defect must be located between specific levels of the spine, the fetus must have a normal chromosome analysis, and the mother must meet health requirements including age 18 or older and a BMI under 35 to 40. Conditions like placenta previa, a short cervix, or previous preterm delivery rule out fetal surgery.
Prenatal repair doesn’t cure spina bifida, but it can reduce the severity of complications. Children who had the repair before birth are more likely to walk independently and less likely to need a shunt for hydrocephalus compared to those who had the repair after delivery.
Epilepsy Surgery
When a child’s seizures don’t respond to medication, surgery becomes a serious consideration. Pediatric neurosurgeons have several approaches depending on where seizures originate and how widespread they are.
Traditional open surgery to remove the brain tissue causing seizures remains effective, but newer techniques are expanding options. Laser interstitial thermal therapy uses a thin probe guided by MRI to deliver targeted heat to the seizure focus, destroying the problematic tissue without a large incision. In a recent study of 19 children with temporal lobe epilepsy treated this way, about 74% became seizure-free. The results were strongest when MRI showed a visible abnormality: 90% of those children achieved seizure freedom.
Another option is vagus nerve stimulation, where a small device implanted under the skin sends electrical pulses to the brain through a nerve in the neck. This doesn’t typically eliminate seizures entirely but can reduce their frequency and severity.
Surgery for Cerebral Palsy
Pediatric neurosurgeons play a specific role in managing cerebral palsy through a procedure called selective dorsal rhizotomy. This surgery targets the nerve roots in the lower spine that contribute to spasticity, or the involuntary muscle tightness that limits movement in many children with cerebral palsy.
Not every child with cerebral palsy is a candidate. Selection criteria span multiple factors: the type and distribution of spasticity, the absence of other movement problems like involuntary writhing, adequate underlying muscle strength, the child’s gross motor function level, and age. Motivation matters too, both the child’s and the family’s, because the procedure requires intensive physical therapy afterward to build strength and learn new movement patterns. Previous orthopedic surgeries and the availability of follow-up therapy also factor into the decision.
When the right child undergoes the procedure, the reduction in spasticity can be permanent, improving walking ability and daily function in ways that medications and therapy alone cannot achieve.