Intractable seizures associated with proximal migration of a ventriculoperitoneal shunt. Case report

Area of Science:

• Neurosurgery
• Pediatric Neurology
• Biomedical Engineering

Background:

• Ventriculoperitoneal (VP) shunts are crucial for managing hydrocephalus in children.
• Programmable valves offer adjustable intracranial pressure settings.
• Complications like shunt migration can occur, impacting neurological function.

Observation:

• A 6-year-old girl with a history of VP shunt placement presented with severe, intractable seizures.
• Neuroimaging revealed proximal migration of the shunt's prechamber into the cranium via the burr hole.
• Electroencephalography confirmed focal seizure activity in the right hemisphere, correlating with the shunt migration site.

Findings:

• The proximal migration of the ventriculoperitoneal shunt system into the cranial cavity was identified as the cause of intractable seizures.
• Irritation of the brain parenchyma by the migrated shunt components led to focal neurological symptoms.
• Surgical revision successfully resolved the patient's seizures, confirming the diagnosis.

Implications:

• Proximal shunt migration is a rare but serious complication that can lead to both shunt malfunction and new neurological deficits.
• This case highlights the importance of vigilant monitoring for shunt-related complications in pediatric patients.
• Understanding the biomechanics of shunt migration is essential for improving device design and surgical techniques to prevent such adverse events.