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Updated: May 30, 2026

Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
Published on: October 14, 2022
Ventriculoperitoneal shunt malfunction from cerebrospinal fluid eosinophilia in children: case-based update
R Shane Tubbs1, Mitchel Muhleman, Marios Loukas
1Section of Pediatric Neurosurgery, Children's Hospital, Birmingham, AL 35233, USA. shane.tubbs@chsys.org
Insights
Sterile shunt malfunction in children can be caused by cerebrospinal fluid (CSF) eosinophilia. Removing antibiotic-impregnated catheters resolved eosinophilia and restored shunt function.
Area of Science:
- Neuroscience
- Pediatric Neurosurgery
- Infectious Diseases
Background:
- Cerebrospinal fluid (CSF) shunts are critical for managing hydrocephalus.
- Shunt malfunction is a frequent complication with diverse causes, including obstruction and mechanical failure.
Observation:
- A pediatric case presented with sterile ventriculoperitoneal shunt malfunction.
- The malfunction was associated with profound CSF eosinophilia following the use of an antibiotic-impregnated catheter.
Findings:
- Removal of the antibiotic-impregnated catheter led to spontaneous resolution of CSF eosinophilia.
- The patient subsequently had a functioning shunt with a non-antibiotic impregnated catheter.
Implications:
- Elevated CSF eosinophilia without infection suggests potential cellular obstruction, leading to sterile shunt malfunction.
- This highlights the importance of considering eosinophilic infiltration in shunt malfunction diagnosis.
- Antibiotic-impregnated catheters may be associated with sterile shunt malfunction due to CSF eosinophilia.
Introduction:
Malfunction of cerebrospinal shunts is common and is due to multiple etiologies ranging from obstruction due to infiltrated brain tissue to mechanical disconnection.
Discussion:
We review the differential diagnosis and recommended evaluation and treatment for cerebrospinal fluid (CSF) eosinophilia.
Illustrative Case:
We report a child who, following the use of an antibiotics-impregnated ventricular catheter, developed sterile ventriculoperitoneal shunt malfunction thought to be due to profound CSF eosinophilia. Following removal of the catheter, the eosinophilia spontaneously resolved, and at long-term follow up, the patient has a functioning non-antibiotic impregnated shunt catheter.
Conclusions:
Patients presenting with signs of shunt malfunction but without signs of CSF infection and with a raised CSF eosinophilia should be suspicious for cellular obstruction of their shunt system, i.e., sterile shunt malfunction.
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