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Vasomotion in retinal vessels of patients presenting post hemorrhagic hydrocephalus following subarachnoid hemorrhage

  • Clearance of blood components and fluid drainage play a crucial role in subarachnoid hemorrhage (SAH) and post hemorrhagic hydrocephalus (PHH). With the involvement of interstitial fluid (ISF) and cerebrospinal fluid (CSF), two pathways for the clearance of fluid and solutes in the brain are proposed. Starting at the level of capillaries, flow of ISF follows along the basement membranes in the walls of cerebral arteries out of the parenchyma to drain into the lymphatics and CSF [1]–[3]. Conversely, it is shown that CSF enters the parenchyma between glial and pial basement membranes of penetrating arteries [4]–[6]. Nevertheless, the involved structures and the contribution of either flow pathway to fluid balance between the subarachnoid space and interstitial space remains controversial. Low frequency oscillations in vascular tone are referred to as vasomotion and corresponding vasomotion waves are modeled as the driving force for flow of ISF out of the parenchyma [7]. Retinal vessel analysis (RVA) allows non-invasive measurement of retinal vessel vasomotion with respect to diameter changes [8]. Thus, the aim of the study is to investigate vasomotion in RVA signals of SAH and PHH patients.

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Metadaten
Author:Yannik Blum, Walid Albanna, Anne Benninghaus, Konstantin KotliarORCiD
DOI:https://doi.org/10.17185/duepublico/48750
ISBN:978-3-940402-22-6
Parent Title (English):3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH Aachen
Publisher:Universität Duisburg-Essen
Place of publication:Duisburg
Editor:Manfred Staat, Daniel Erni
Document Type:Conference Proceeding
Language:English
Year of Completion:2019
Creating Corporation:MedTech Symposium
Contributing Corporation:Young Researchers Academy
Date of the Publication (Server):2019/07/04
First Page:38
Last Page:39
Link:https://doi.org/10.17185/duepublico/48750
Zugriffsart:weltweit
Institutes:FH Aachen / Fachbereich Medizintechnik und Technomathematik
FH Aachen / IfB - Institut für Bioengineering
collections:Verlag / Universität Duisburg-Essen
Licence (German):License LogoCreative Commons - Namensnennung-Nicht kommerziell-Keine Bearbeitung