What question did this study set out to answer?

This study aims to evaluate the effect of different programmable valve types on subdural collections in patients with normal pressure hydrocephalus.

March 28, 2026Neurosurgery0 citations

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The Impact of Programmable Valves on the Risk and Severity of Subdural Collections in Patients With Normal Pressure Hydrocephalus

SFSpencer FromeNYU Langone Health JWJeffrey H. WisoffNYU Langone Health HKHammad A. KhanNYU Langone Health

Key Points

This study aims to evaluate the effect of different programmable valve types on subdural collections in patients with normal pressure hydrocephalus.
Large single-center cohort study
Comparison of programmable valves (Certas and Strata) with Low Flow OSV
Assessment of rates and severity of subdural collections
Increased rate of subdural collections associated with Certas and Strata valves
Severe complications more likely with certain programmable valve designs
Low-flow designs may reduce risks for normal pressure hydrocephalus patients

Abstract

In this large single-center cohort study, programmable valves, specifically the Certas and Strata, were associated with an increased rate and severity of subdural collections compared with the Low Flow OSV. The use of low-flow designs may mitigate complications for the NPH population, and the use of lower programmable valve settings should be carefully considered.

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The Impact of Programmable Valves on the Risk and Severity of Subdural Collections in Patients With Normal Pressure Hydrocephalus

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