• Auton Neurosci · Sep 2019

    Correlation between sonographic morphology and function of the cervical vagus nerves.

    • Johann Otto Pelz, Elena Belau, Ina Menze, Timo B Woost, Joseph Classen, and David Weise.
    • Department of Neurology, University Hospital Leipzig, Leipzig, Germany. Electronic address: johann.pelz@medizin.uni-leipzig.de.
    • Auton Neurosci. 2019 Sep 1; 220: 102552.

    AbstractThe heart receives parasympathetic and to a lesser degree sympathetic input via the vagus nerve. Here, we investigated whether morphological changes of the cervical vagus nerves (VN) as assessed by high-resolution ultrasound (HRUS) correlated with the autonomic cardiac innervation. Measurement of heart rate variability (HRV) and HRUS of the VNs were performed in 88 healthy subjects (50 female; mean age 56 ± 18 years). HRV parameters and the cross-sectional area (CSA) of the VNs correlated both inversely with age. We also found an inverse correlation between the left VN-CSA and HRV as well as parasympathetic parameters. The results imply an asymmetric parasympathetic (vagal) innervation of the heart.Copyright © 2019 Elsevier B.V. All rights reserved.

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