Deep breathing couples CSF and venous flow dynamics.

Autor: Kollmeier JM; Biomedizinische NMR, Max-Planck-Institut für multidisziplinäre Naturwissenschaften, 37077, Göttingen, Germany., Gürbüz-Reiss L; Division of Pediatric Neurology, Department of Pediatrics and Adolescent Medicine, University Medical Center Göttingen, 37075, Göttingen, Germany., Sahoo P; Division of Pediatric Neurology, Department of Pediatrics and Adolescent Medicine, University Medical Center Göttingen, 37075, Göttingen, Germany., Badura S; Division of Pediatric Neurology, Department of Pediatrics and Adolescent Medicine, University Medical Center Göttingen, 37075, Göttingen, Germany., Ellebracht B; Division of Pediatric Neurology, Department of Pediatrics and Adolescent Medicine, University Medical Center Göttingen, 37075, Göttingen, Germany., Keck M; Division of Pediatric Neurology, Department of Pediatrics and Adolescent Medicine, University Medical Center Göttingen, 37075, Göttingen, Germany., Gärtner J; Division of Pediatric Neurology, Department of Pediatrics and Adolescent Medicine, University Medical Center Göttingen, 37075, Göttingen, Germany., Ludwig HC; Division of Pediatric Neurosurgery, Department of Neurosurgery, University Medical Center Göttingen, 37075, Göttingen, Germany., Frahm J; Biomedizinische NMR, Max-Planck-Institut für multidisziplinäre Naturwissenschaften, 37077, Göttingen, Germany.; DZHK (German Center for Cardiovascular Research), Partner Site, Göttingen, Germany., Dreha-Kulaczewski S; Division of Pediatric Neurology, Department of Pediatrics and Adolescent Medicine, University Medical Center Göttingen, 37075, Göttingen, Germany. sdreha@gwdg.de.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2022 Feb 16; Vol. 12 (1), pp. 2568. Date of Electronic Publication: 2022 Feb 16.
DOI: 10.1038/s41598-022-06361-x
Abstrakt: Venous system pathologies have increasingly been linked to clinically relevant disorders of CSF circulation whereas the exact coupling mechanisms still remain unknown. In this work, flow dynamics of both systems were studied using real-time phase-contrast flow MRI in 16 healthy subjects during normal and forced breathing. Flow evaluations in the aqueduct, at cervical level C3 and lumbar level L3 for both the CSF and venous fluid systems reveal temporal modulations by forced respiration. During normal breathing cardiac-related flow modulations prevailed, while forced breathing shifted the dominant frequency of both CSF and venous flow spectra towards the respiratory component and prompted a correlation between CSF and venous flow in the large vessels. The average of flow magnitude of CSF was increased during forced breathing at all spinal and intracranial positions. Venous flow in the large vessels of the upper body decreased and in the lower body increased during forced breathing. Deep respiration couples interdependent venous and brain fluid flow-most likely mediated by intrathoracic and intraabdominal pressure changes. Further insights into the driving forces of CSF and venous circulation and their correlation will facilitate our understanding how the venous system links to intracranial pressure regulation and of related forms of hydrocephalus.
(© 2022. The Author(s).)
Databáze: MEDLINE
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