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Neurosurgery · Myelomeningocele

Watching for Warning Signs and Complications

At a Glance

For a child with myelomeningocele, any new or worsening change from their usual behavior, breathing, movement, or bladder function deserves prompt medical attention. Breathing pauses, blue color, unresponsiveness, seizures, or rapidly worsening vomiting and headache require 911.

While most children with myelomeningocele live active and healthy lives, certain complications require prompt medical attention. Because these issues often involve the brain and spinal cord, the most important tool you have is your knowledge of your child’s “baseline”—how they act, move, and use the bathroom when they are well [1][2]. Trusting your intuition when you see a change is often the first step in getting the care your child needs.

Emergency Action: If your child exhibits severe symptoms—such as apnea (breathing pauses), severe choking, blue coloring (cyanosis), severe lethargy, unresponsiveness, seizures, or rapidly worsening vomiting and headache—call 911 or go to the nearest emergency department immediately. Do not delay care by waiting for an outpatient neurosurgery appointment. Contact your specialty team in parallel once emergency care is underway.

Shunt Malfunction: The Scan Isn’t Everything

If your child has a Ventriculoperitoneal (VP) Shunt to manage hydrocephalus, you must be alert for signs that it is no longer draining fluid correctly. A common and dangerous misconception is that a “normal” or “unchanged” brain scan (CT or MRI) means the shunt is working. In reality, a child can have a life-threatening shunt malfunction with little to no change in the size of their brain’s fluid spaces on imaging [3].

Symptomatic worsening should always be taken seriously, regardless of what the scan shows [1][4].

  • Warning Signs in Infants: A bulging or tense fontanelle, unusual irritability, repeated vomiting, or a rapidly increasing head circumference [5][6].
  • Warning Signs in Children: Persistent headaches, new or worsening vomiting, extreme sleepiness (lethargy), or changes in vision or personality [5][7].
  • Infection Signs: Fever, redness along the shunt track (the tubing under the skin), or drainage from the surgical sites [8].

Chiari II Malformation: Urgent Red Flags

Almost all children with myelomeningocele have a Chiari II Malformation visible on imaging. While many have no symptoms, it can occasionally compress the brainstem, which controls vital functions [9][10]. Go to the emergency department for:

  • Stridor: A high-pitched, noisy sound when the child breathes in [6][10].
  • Apnea or Bradycardia: Pauses in breathing (especially during sleep) or an unusually slow heart rate [10][11].
  • Dysphagia: Significant difficulty swallowing, frequent choking, or “wet-sounding” vocalizations after eating [10].

Tethered Cord Syndrome: Watching for Change

As a child grows, the spinal cord can sometimes become stuck or “tethered” to the surrounding tissue. This stretches the cord and causes gradual nerve damage [12]. Interval clinical deterioration (a change from a previous state) is the most important clue [2]. Signs requiring specialty evaluation include:

  • Movement Changes: New or progressive weakness in the legs, a change in how the child walks (gait), or new foot deformities [2][13].
  • Bladder/Bowel Decline: A child who was previously continent begins having new accidents, or urodynamic tests show higher pressures [2][12].
  • Orthopedic Changes: Sudden or rapid worsening of scoliosis [12].

Recognizing Urinary Tract Infections (UTIs)

Diagnosing a UTI in a child with a neurogenic bladder requires careful balance. Many children with spina bifida have asymptomatic bacteriuria—meaning bacteria live in their bladder without causing an infection [14][15]. Treating these bacteria when the child isn’t sick leads to antibiotic resistance [14]. A standard urinalysis is often “positive” even when they are healthy.

However, if a child is febrile (has a high fever) or appears systemically ill (toxic), do not delay empiric antibiotics.

  • The Best Practice: When feasible, doctors should obtain a properly collected formal urine culture before giving antibiotics.
  • When to Treat: The culture results, combined with clinical symptoms like fever, new incontinence, malaise, or flank pain, guide whether the child needs UTI treatment [16][17].

Creating an Emergency Plan

Ask your multidisciplinary team for a written Emergency Protocol Card that you can hand to ER doctors unfamiliar with spina bifida [18]. It should include your child’s baseline neurologic status, shunt type (and programmable setting), a bold latex allergy warning, and direct contact numbers for their neurosurgeon and urologist.

Common questions in this guide

Can a VP shunt malfunction even when a CT or MRI looks normal?
Yes. A child can have a serious shunt problem without an obvious change in the size of the brain's fluid spaces, so new or worsening symptoms matter more than a stable scan alone. Seek urgent medical evaluation and follow your child's emergency plan.
Which symptoms mean I should call 911 for my child?
Call 911 or go to the emergency department immediately for breathing pauses, severe choking, blue coloring, unresponsiveness, seizures, severe sleepiness, or rapidly worsening vomiting and headache. Do not wait for an outpatient neurosurgery appointment; contact the specialty team once emergency care is underway.
What breathing or swallowing changes can signal a Chiari II problem?
High-pitched noisy breathing, pauses in breathing, an unusually slow heart rate, significant difficulty swallowing, frequent choking, or a wet-sounding voice after eating can be warning signs. These symptoms need emergency assessment because Chiari II can affect the brainstem, although other conditions can cause similar symptoms.
How might tethered cord syndrome show up as my child grows?
Look for gradual or progressive changes from baseline, such as leg weakness, a new walking pattern, foot deformity, new bladder or bowel accidents, higher bladder pressures on testing, or rapidly worsening scoliosis. These changes warrant prompt evaluation by the child's specialty team.
How is a true UTI identified in a child with neurogenic bladder?
Bacteria or a positive urinalysis alone may not mean infection because asymptomatic bacteriuria is common. Doctors usually combine symptoms such as fever, appearing ill, new incontinence, malaise, or flank pain with a properly collected urine culture; if the child is febrile or systemically ill, antibiotics should not be delayed.
What should my child's emergency protocol card include?
It should state the child's baseline neurologic status, VP shunt type and programmable setting, a prominent latex allergy warning, and direct contact numbers for the neurosurgeon and urologist. Give it to emergency staff, especially if they do not know your child's usual condition.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.What is our specific emergency protocol if I suspect a shunt malfunction but the ER scan looks 'normal' or 'stable'?
  2. 2.Does my child have a 'baseline' brain scan from a period when they were well that we can use for comparison during emergencies?
  3. 3.If my child develops stridor or apnea, how do we determine if it's caused by Chiari II compression or an independent issue like sleep apnea?
  4. 4.What specific functional milestones—like certain leg movements or bladder patterns—should I be tracking to help us catch a tethered cord early?
  5. 5.Since my child has a neurogenic bladder, what specific combination of symptoms and culture results do you use to diagnose a 'true' UTI rather than asymptomatic bacteria?

Questions For You

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

References

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This page is for informational purposes only and does not constitute medical advice. It cannot replace your child's emergency plan or guidance from their neurosurgery and urology teams.

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