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Increased inspiratory resistance affects the dynamic relationship between blood pressure changes and subarachnoid space width oscillations

Author

Listed:
  • Magdalena Wszedybyl-Winklewska
  • Jacek Wolf
  • Ewa Swierblewska
  • Katarzyna Kunicka
  • Kamila Mazur
  • Marcin Gruszecki
  • Pawel J Winklewski
  • Andrzej F Frydrychowski
  • Leszek Bieniaszewski
  • Krzysztof Narkiewicz

Abstract

Background and objective: Respiration is known to affect cerebrospinal fluid (CSF) movement. We hypothesised that increased inspiratory resistance would affect the dynamic relationship between blood pressure (BP) changes and subarachnoid space width (SAS) oscillations. Methods: Experiments were performed in a group of 20 healthy volunteers undergoing controlled intermittent Mueller Manoeuvres (the key characteristic of the procedure is that a studied person is subjected to a controlled, increased inspiratory resistance which results in marked potentiation of the intrathoracic negative pressure). BP and heart rate (HR) were measured using continuous finger-pulse photoplethysmography; oxyhaemoglobin saturation with an ear-clip sensor; end-tidal CO2 with a gas analyser; cerebral blood flow velocity (CBFV), pulsatility and resistive indices with Doppler ultrasound. Changes in SAS were recorded with a new method i.e. near-infrared transillumination/backscattering sounding. Wavelet transform analysis was used to assess the BP and SAS oscillations coupling. Results: Initiating Mueller manoeuvres evoked cardiac SAS component decline (-17.8%, P

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  • Magdalena Wszedybyl-Winklewska & Jacek Wolf & Ewa Swierblewska & Katarzyna Kunicka & Kamila Mazur & Marcin Gruszecki & Pawel J Winklewski & Andrzej F Frydrychowski & Leszek Bieniaszewski & Krzysztof N, 2017. "Increased inspiratory resistance affects the dynamic relationship between blood pressure changes and subarachnoid space width oscillations," PLOS ONE, Public Library of Science, vol. 12(6), pages 1-13, June.
    • Handle: RePEc:plo:pone00:0179503
    DOI: 10.1371/journal.pone.0179503
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    References listed on IDEAS

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    1. Andrzej F Frydrychowski & Arkadiusz Szarmach & Bartosz Czaplewski & Pawel J Winklewski, 2012. "Subarachnoid Space: New Tricks by an Old Dog," PLOS ONE, Public Library of Science, vol. 7(5), pages 1-15, May.
    2. Pawel J Winklewski & Yurii Tkachenko & Kamila Mazur & Jacek Kot & Marcin Gruszecki & Wojciech Guminski & Krzysztof Czuszynski & Jerzy Wtorek & Andrzej F Frydrychowski, 2015. "Sympathetic Activation Does Not Affect the Cardiac and Respiratory Contribution to the Relationship between Blood Pressure and Pial Artery Pulsation Oscillations in Healthy Subjects," PLOS ONE, Public Library of Science, vol. 10(8), pages 1-13, August.
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