Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-6316
Authors: Neulen, Axel
Molitor, Michael
Kosterhon, Michael
Pantel, Tobias
Holzbach, Elisa
Rudi, Wolf-Stephan
Karbach, Susanne H.
Wenzel, Philip
Ringel, Florian
Thal, Serge C.
Title: Correlation of cardiac function and cerebral perfusion in a murine model of subarachnoid hemorrhage
Online publication date: 8-Sep-2021
Language: english
Abstract: Cerebral hypoperfusion is a key factor for determining the outcome after subarachnoid hemorrhage (SAH). A subset of SAH patients develop neurogenic stress cardiomyopathy (NSC), but it is unclear to what extent cerebral hypoperfusion is influenced by cardiac dysfunction after SAH. The aims of this study were to examine the association between cardiac function and cerebral perfusion in a murine model of SAH and to identify electrocardiographic and echocardiographic signs indicative of NSC. We quantified cortical perfusion by laser SPECKLE contrast imaging, and myocardial function by serial high-frequency ultrasound imaging, for up to 7 days after experimental SAH induction in mice by endovascular filament perforation. Cortical perfusion decreased significantly whereas cardiac output and left ventricular ejection fraction increased significantly shortly post-SAH. Transient pathological ECG and echocardiographic abnormalities, indicating NSC (right bundle branch block, reduced left ventricular contractility), were observed up to 3 h post-SAH in a subset of model animals. Cerebral perfusion improved over time after SAH and correlated significantly with left ventricular end-diastolic volume at 3, 24, and 72 h. The murine SAH model is appropriate to experimentally investigate NSC. We conclude that in addition to cerebrovascular dysfunction, cardiac dysfunction may significantly influence cerebral perfusion, with LVEDV presenting a potential parameter for risk stratification.
DDC: 610 Medizin
610 Medical sciences
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 04 Medizin
Place: Mainz
DOI: http://doi.org/10.25358/openscience-6316
Version: Published version
Publication type: Zeitschriftenaufsatz
License: CC-BY
Information on rights of use: https://creativecommons.org/licenses/by/4.0/
Journal: Scientific reports
11
Pages or article number: 3317
Publisher: Macmillan Publishers Limited, part of Springer Nature
Publisher place: London
Issue date: 2021
ISSN: 2045-2322
Publisher's URL: https://doi.org/10.1038/s41598-021-82583-9
Appears in collections:JGU-Publikationen

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