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First experiences with an adjustable gravitational valve in childhood hydrocephalus
Veit Rohde1, Ernst-Johannes Haberl, Hans Ludwig
1Department of Neurosurgery, Georg-August University, Goettingen, Germany. veit.rohde@med.uni-goettingen.de
Insights
The ProGAV adjustable gravity-assisted valve (GAV) shows promising results for treating childhood hydrocephalus, with an 88.7% success rate in initial pediatric cases.
Area of Science:
- Pediatric Neurosurgery
- Medical Device Technology
Background:
- Hydrocephalus is a common neurological condition in children.
- Shunt placement is a primary treatment for hydrocephalus.
- Adjustable valves offer potential benefits for managing shunt function.
Purpose of the Study:
- To evaluate the initial clinical experience with the ProGAV.
- To assess the safety and efficacy of the ProGAV in pediatric hydrocephalus patients.
Main Methods:
- The ProGAV was implanted in 53 children with various hydrocephalus origins.
- The ProGAV features adjustable opening pressures and a gravitational unit.
- Follow-up averaged 15.2 months, with pressure adjustments made in 19 children.
Main Results:
- No valve-related complications were observed.
- Four infections (7.5%) required shunt removal.
- Good clinical results were achieved in 88.7% of cases, with significant improvement after pressure adjustments.
Conclusions:
- The ProGAV demonstrates promising outcomes in treating childhood hydrocephalus.
- The adjustable nature of the ProGAV allows for effective management of shunt function.
- Further use of the ProGAV in pediatric populations is warranted.
Object:
The goal of this report was to describe the authors' initial experiences with an adjustable gravity-assisted valve (GAV) called the ProGAV in treating childhood hydrocephalus.
Methods:
The ProGAV was implanted in 53 children (29 boys and 24 girls, median age 7.3 years) with hydrocephalus of various origins. The ProGAV consists of a differential-pressure unit with adjustable opening pressures and a gravitational unit with a fixed opening pressure.
Results:
The mean follow-up period was 15.2 months (range 6-44 months). The authors did not observe any valve-related complications. Four infections (7.5%) occurred, warranting the removal of the shunt. In 19 children, the opening pressure was changed at least once during the follow-up period, for underdrainage in 10, overdrainage in 8, and shunt weaning in 1, with substantial clinical improvement in 18 children. Overall, good clinical results were obtained in 47 (88.7%) of the 53 valve placements.
Conclusions:
With an overall success rate of 88.7%, the first experiences with the ProGAV in childhood hydrocephalus are promising and justify its further use in the pediatric population.
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