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Syndrome of overdrainage associated with disconnection of a ventriculoperitoneal shunt
G Rosenthal1, S Pomeranz, S Spektor
1Department of Neurosurgery, Hadassah University Hospital, Jerusalem, Israel.
Pediatric Neurosurgery
|March 9, 2000
Insights
A child experienced cerebrospinal fluid (CSF) overdrainage due to a disconnected shunt valve, leading to slit-like ventricles. Upgrading the shunt resolved the symptoms, suggesting a patent fibrous tract facilitated excessive CSF drainage.
Area of Science:
- Neurosurgery
- Pediatric Neurology
- Medical Device Technology
Background:
- Hydrocephalus management often involves cerebrospinal fluid (CSF) shunts.
- Shunt malfunction is a common complication, requiring timely diagnosis and intervention.
- Overdrainage is a potential complication of CSF shunts, leading to characteristic radiological findings.
Observation:
- A pediatric patient presented with symptoms suggestive of CSF overdrainage.
- Computed tomography (CT) revealed slit-like ventricles, a hallmark of reduced intracranial pressure.
- The distal shunt valve was found to be disconnected, indicating a hardware failure.
Findings:
- The disconnected distal shunt valve led to excessive CSF drainage, causing the overdrainage syndrome.
- A patent fibrous tract was identified as a potential pathway facilitating the abnormal CSF flow.
- Surgical upgrade of the shunt system successfully resolved the patient's symptoms and normalized ventricular size.
Implications:
- This case highlights the importance of considering shunt disconnection in pediatric patients with overdrainage symptoms.
- The presence of a patent fibrous tract may predispose to overdrainage even with apparent shunt malfunction.
- Prompt recognition and management of shunt complications are crucial for favorable neurological outcomes in children.
Abstract:
We present the case of a child who developed the syndrome of cerebrospinal fluid (CSF) overdrainage with slit-like ventricles on CT in the setting of a disconnected distal shunt valve. Upgrading the shunt alleviated his symptoms. It is suggested that the presence of a patent fibrous tract allowed the overdrainage of CSF.