Recurrent symptomatic pleural effusion due to a ventriculopleural shunt
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Updated: Jun 21, 2026

Neuronavigation and Laparoscopy Guided Ventriculoperitoneal Shunt Insertion for the Treatment of Hydrocephalus
Published on: October 14, 2022
Farzan Irani1, Hussam Elkambergy, Kelechi Okoli
1Department of Internal Medicine, St Vincent Mercy Medical Center, Toledo, OH 43608, USA. farzan_i@yahoo.com
Insights
Ventriculopleural shunts, rarely used for normal pressure hydrocephalus, can cause pleural effusion. This case report highlights a patient whose effusion resolved after shunt ligation, suggesting a non-infectious mechanism.
Area of Science:
- Neurology
- Thoracic Surgery
- Neurosurgery
Background:
- Ventriculopleural shunts are an uncommon treatment for adult normal pressure hydrocephalus.
- Pleural effusion is a known complication, particularly in pediatric patients.
Observation:
- A case of recurrent right-sided pleural effusion is presented, occurring two years post-ventriculopleural shunt insertion for normal pressure hydrocephalus.
- The effusion showed no signs of infection.
Findings:
- The pleural effusion resolved completely after the ventriculopleural shunt was ligated.
- This suggests a non-infectious etiology related to the shunt itself.
Implications:
- Awareness of this rare complication is crucial for clinicians managing patients with ventriculopleural shunts.
- Early recognition and potential shunt revision can prevent further complications and guide management.
Abstract:
Ventriculopleural shunts are uncommonly used for the treatment of normal pressure hydrocephalus in adults. Pleural effusion has been reported to complicate the course of these ventriculopleural shunts in children. The pleural effusion should typically resemble the cerebrospinal fluid unless frankly infected. There are few good data on the nature of the pleural effusion. We, report a case of recurrent right-sided pleural effusion, 2 years after a ventriculopleural shunt insertion, for normal pressure hydrocephalus with no evidence of an underlying infection. The effusion abated after ligation of the shunt. We discuss the possible mechanisms in the development of the effusion. It is important to be aware of this unlikely complication of an uncommon procedure. Recognizing the origin of the pleural effusion can help in instituting close follow-up and early referral for revision of the ventriculopleural shunt.
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