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.
Author: | Yannik Blum, Walid Albanna, Anne Benninghaus, Konstantin KotliarORCiD |
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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 StaatORCiD, Daniel Erni |
Document Type: | Conference Proceeding |
Language: | English |
Year of Completion: | 2019 |
Creating Corporation: | MedTech Symposium |
Contributing Corporation: | Young Researchers Academy |
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 | |
open_access (DINI-Set): | open_access |
collections: | Verlag / Universität Duisburg-Essen |
Licence (German): | Creative Commons - Namensnennung-Nicht kommerziell-Keine Bearbeitung |