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[Pulmonary hypertension in children treated with ventriculo-atrial shunt in hydrocephalus]
Insights
Ventriculo-atrial shunts for hydrocephalus can lead to pulmonary hypertension in infants years later. This serious complication, potentially caused by microemboli, occurred in 6.7% of cases and was fatal despite treatment.
Area of Science:
- Pediatric Neurosurgery
- Cardiopulmonary Medicine
- Medical Device Complications
Background:
- Hydrocephalus is a condition characterized by excess cerebrospinal fluid in the brain.
- Ventriculo-atrial shunts are used to treat hydrocephalus by draining excess fluid.
- Infantile hydrocephalus management often involves surgical intervention with shunts.
Observation:
- Four infants treated with ventriculo-atrial shunts developed sudden pulmonary hypertension years post-operation.
- Clinical presentation suggested microemboli in lung vasculature in two cases.
- Despite shunt replacement and medical therapy, all affected infants died.
Findings:
- A significant complication rate of 6.7% (95% CI 1.4-14.3%) for pulmonary hypertension was observed.
- Necropsy revealed old microemboli in the small lung vessels of two infants.
- Pulmonary hypertension appeared years after the initial shunt placement.
Implications:
- Ventriculo-atrial shunts may pose a long-term risk of pulmonary hypertension in pediatric patients.
- Early detection and monitoring for pulmonary hypertension are crucial in infants with shunts.
- Further research is needed to understand the mechanism and prevention of shunt-related pulmonary hypertension.
Abstract:
Four infants treated with ventriculo-atrial shunt for hydrocephalus developed sudden pulmonary hypertension, several years after the first operation. All infants died in spite of replacement of the distal shunt and AK treatment. At necropsy, old microemboli were found in the small lung vessels in two infants whereas the two other infants were suspected of having the same lesions from clinical investigations. The overall frequency for this complication was estimated to be 6.7% (95% CI 1.4-14.3%).