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
Hydrocephalus as a cause of dementia: evaluation by computerised tomography and intracranial pressure monitoring
Does the shunt opening pressure influence the effect of shunt surgery in normal pressure hydrocephalus?
Comparison between classic-differential and automatic shunt functioning on the basis of infusion tests
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Effects of transient and persistent cerebrospinal fluid drainage on sleep disordered breathing in patients with idiopathic adult hydrocephalus syndrome
Infusion technique can be used to distinguish between dysfunction of a hydrocephalus shunt system and a progressive dementia
Investigation of the hydrodynamic properties of a new MRI-resistant programmable hydrocephalus shunt.
Evaluation of Strata NSC and Codman Hakim adjustable cerebrospinal fluid shunts and their corresponding antisiphon devices
Spectral analysis of intracranial pressure: Is it helpful in the assessment of shunt functioning in-vivo?
Revision to an adjustable non-siphon control valve in low pressure hydrocephalus: therapeutic siphoning and a new perspective on NPH: series of 3 cases and review of the literature
Cerebrospinal fluid dynamics and long-term survival of the Strata valve in idiopathic normal pressure hydrocephalus
A physical framework for implementing virtual models of intracranial pressure and cerebrospinal fluid dynamics in hydrocephalus shunt testing
CSF & Lymphatic System
This feed focuses on Cerebral Spinal Fluid (CSF) and the lymphatic system. Discover the latest papers using imaging techniques to track CSF outflow into the lymphatic system in animal models.