Pulsatile flow in ventricular catheters for hydrocephalus

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
Ángel GiménezJosé M Amigó

Abstract

The obstruction of ventricular catheters (VCs) is a major problem in the standard treatment of hydrocephalus, the flow pattern of the cerebrospinal fluid (CSF) being one important factor thereof. As a first approach to this problem, some of the authors studied previously the CSF flow through VCs under time-independent boundary conditions by means of computational fluid dynamics in three-dimensional models. This allowed us to derive a few basic principles which led to designs with improved flow patterns regarding the obstruction problem. However, the flow of the CSF has actually a pulsatile nature because of the heart beating and blood flow. To address this fact, here we extend our previous computational study to models with oscillatory boundary conditions. The new results will be compared with the results for constant flows and discussed. It turns out that the corrections due to the pulsatility of the CSF are quantitatively small, which reinforces our previous findings and conclusions.This article is part of the themed issue 'Mathematical methods in medicine: neuroscience, cardiology and pathology'.

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Citations

Aug 16, 2017·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·M GalarzaJ P McAllister
May 17, 2017·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·José M Amigó, Michael Small
Apr 4, 2021·Sensors·Milenka GameroSung Il Park
Sep 21, 2021·Biomedical Microdevices·Trevor Q HudsonEllis Meng

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