Cerebrospinal fluid hydrodynamics after placement of a shunt with an antisiphon device: a long-term study

Journal of Neurosurgery
B LundkvistJ Malm

Abstract

Few studies have been performed to investigate the cerebrospinal fluid (CSF) hydrodynamic profile in patients with idiopathic adult hydrocephalus syndrome (IAHS) before and after shunt implantation. The authors compared the in vivo CSF hydrodynamic properties, including the degree of gravity-induced CSF flow, of a shunt with an antisiphon device with a standard shunt. Twelve patients with IAHS underwent insertion of shunts with Delta valves. Clinical testing, magnetic resonance imaging, and CSF hydrodynamic investigations were conducted with intracranial pressure (ICP), gravity effect, and pressure-flow curve of the shunt estimated at baseline and at 3 and 12 months postoperatively. No shunt was revised. Despite postoperative clinical improvement in all patients who received Delta valves, the mean ICP was only moderately reduced (mean decrease at 3 months 0.3 kPa [p = 0.02], at 12 months 0.2 kPa [not significant]). Patients with the greatest increase in ICP preoperatively had the most pronounced decrease postoperatively. The hydrostatic effect of the Delta valves was significantly lower than with the Hakim shunts (0.1-0.2 kPa compared with 0.6 kPa). The increased conductance (that is, lowered resistance) was up to 14 times high...Continue Reading

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Citations

Mar 4, 2005·Medical & Biological Engineering & Computing·Z H CzosnykaJ D Pickard
Feb 27, 2007·Medical & Biological Engineering & Computing·Nina AnderssonAnders Eklund
Jul 20, 2007·Medical & Biological Engineering & Computing·Anders EklundAnthony Marmarou
Jul 20, 2004·Journal of Neurology, Neurosurgery, and Psychiatry·A EklundJ Malm
Jul 19, 2005·Journal of Neurology, Neurosurgery, and Psychiatry·A Agren-WilssonJ Malm
Jan 18, 2003·Journal of Neurology, Neurosurgery, and Psychiatry·A Agren-WilssonJ Malm
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Mar 24, 2009·Journal of Neurosurgery·Nitin MukerjiRoger Strachan
Jan 21, 2010·Acta neurochirurgica·Igor Lima MaldonadoAnne-Laure Boch
Jul 8, 2010·Acta neurochirurgica·Suhas UdayakumaranShlomi Constantini
Feb 3, 2016·Clinical Neurology and Neurosurgery·Dong-Joo KimZofia Czosnyka
Jun 17, 2003·Acta Neurologica Scandinavica·B LundkvistJ Malm
Jun 3, 2008·Acta Neurologica Scandinavica·G PetrellaZ Czosnyka
Sep 16, 2008·Neurosurgery·Marvin BergsneiderXiao Hu
Aug 3, 2004·Acta Neurologica Scandinavica·J MalmB Kristensen
Sep 13, 2018·Brain and Behavior·Axel SandvigLars-Owe D Koskinen
Apr 26, 2003·Acta Neurologica Scandinavica·M TisellC Wikkelsø

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