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An adjustable CSF shunt: advices for clinical use

Objectives – The opening pressure and the resistance of a CSF shunt are essential for clinical use in order to set the proper opening pressure and to determine the shunt function in vivo. We find it of vital importance to validate and supplement the product description given by the manufacturer. The in vitro properties of a newly introduced, adjustable differential pressure valve with a siphon‐preventing device (Strata® valve) was compared with its predecessor (Delta® valve).