Acta Neurochirurgica (2025) 167:151
This study evaluates the long-term outcomes of using programmable gravitational valves in treating idiopathic normal pressure hydrocephalus (iNPH). Results indicate significant clinical improvement, low complication rates, and no valve dysfunction, suggesting these valves are a safe and effective alternative to traditional fixed-pressure valves.
• The study evaluates the safety and effectiveness of adjustable gravitational valves (GVs) for treating idiopathic normal pressure hydrocephalus (iNPH) over a 3-year follow-up period.
• 76 patients were treated with ventriculoperitoneal shunts using programmable GVs, showing significant clinical improvement.
• The study found that 71.1% of patients required valve setting adjustments post-implantation, mainly for the differential pressure unit (DPU).
• No cases of valve dysfunction were reported, contrasting with previous literature findings.
• Postoperative complications were acceptable, with a low rate of overdrainage-related issues due to the use of GVs.
• The study suggests that GVs offer a higher therapeutic index than fixed differential pressure valves, despite higher costs.
• The addition of gravitational units to the shunt system significantly reduces overdrainage complications.
• The study calls for further investigation to confirm results and assess the cost-effectiveness of GVs in treating iNPH.
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