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    The modulation of neural blood pressure control by blood pressure pulsatility


    Bagnall Hare, Hasana and Ringwood, John (2019) The modulation of neural blood pressure control by blood pressure pulsatility. In: 2019 30th Irish Signals and Systems Conference (ISSC). IEEE. ISBN 9781728128009

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    Abstract

    The neural control of blood pressure involves effectors related both to peripheral resistance and the heart. These mechanisms, using blood pressure measurements from the baroreceptors, work in unison to maintain blood pressure at an acceptable value. However, it is less well known that the neural baroreflex is affected by the pulsatile nature of blood flow, which also modulates the blood pressure signal. Furthermore, the presence, or absence, of low-frequency (circa 0.1 Hz in humans) oscillations in blood pressure may be predicated on the pulsatility, or lack of pulsatility. The absence of pulsatility may be found in patients with artificial (turbine type) hearts, or with left ventricular assist devices (LVADs). This paper shows the effect of pulsatility on the neural baroreflex, and consequently on the generation of low-frequency oscillations, via simulation results.

    Item Type: Book Section
    Additional Information: Cite as: H. B. Hare and J. V. Ringwood, "The modulation of neural blood pressure control by blood pressure pulsatility," 2019 30th Irish Signals and Systems Conference (ISSC), Maynooth, Ireland, 2019, pp. 1-6, doi: 10.1109/ISSC.2019.8904957.
    Keywords: Feedback control; limit cycle; baroreflex, neural control; low-frequency oscillations; pulsatility;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Centre for Ocean Energy Research
    Faculty of Science and Engineering > Electronic Engineering
    Item ID: 14294
    Identification Number: https://doi.org/10.1109/ISSC.2019.8904957
    Depositing User: Professor John Ringwood
    Date Deposited: 31 Mar 2021 15:51
    Publisher: IEEE
    Refereed: Yes
    URI:

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