Modeling of Cardiac Component of Subarachnoid Space Changes in Apnoea Resulting as a Function of Blood Pressure and Blood Flow Parameters

Kamila Mazur, Renata Kalicka, Andrzej F. Frydrychowski, Pawel J. Winklewski

2017

Abstract

Experiments were performed in a group of 19 healthy, non-smoking volunteers. The experiment consisted of three apnoeas, sequentially: 30 s apnoea, 60 s apnoea and maximal, that could be done, apnoea. The breath-hold was separated for 5 minutes rest. The following parameters were measured and obtained for further analysis: blood parameters, artery diameter of the internal carotid artery, end-tidal CO2 in expired air, the cardiac (from 0.5 to 5.0 Hz) and slow (< 0.5 Hz) components of subarachnoid space width signal. As a result of the experiment, we observed two different reactions, using the same experimental procedure. It seemed to indicate two different operating modes and two separate models. As a consequence, there are two subsets of slow subarachnoid space width responses to breath-hold in humans. A positive subarachnoid space width changes (slow) component depends on changes in heart rate, pulsatility index and cerebral blood flow velocity. A negative subarachnoid space width changes component is driven by heart rate changes and pulsatility index changes. The different heart-generated arterial pulsation response to experimental breath-hold provides new insights into our understanding of the complex mechanisms governing the adaptation to apnoea in humans. We propose a mathematical methodology that can be used in further clinical research.

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Paper Citation


in Harvard Style

Mazur K., Kalicka R., Frydrychowski A. and Winklewski P. (2017). Modeling of Cardiac Component of Subarachnoid Space Changes in Apnoea Resulting as a Function of Blood Pressure and Blood Flow Parameters. In - BIOINFORMATICS, (BIOSTEC 2017) ISBN , pages 0-0. DOI: 10.5220/0006139900001488


in Bibtex Style

@conference{bioinformatics17,
author={Kamila Mazur and Renata Kalicka and Andrzej F. Frydrychowski and Pawel J. Winklewski},
title={Modeling of Cardiac Component of Subarachnoid Space Changes in Apnoea Resulting as a Function of Blood Pressure and Blood Flow Parameters},
booktitle={ - BIOINFORMATICS, (BIOSTEC 2017)},
year={2017},
pages={},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006139900001488},
isbn={},
}


in EndNote Style

TY - CONF

JO - - BIOINFORMATICS, (BIOSTEC 2017)
TI - Modeling of Cardiac Component of Subarachnoid Space Changes in Apnoea Resulting as a Function of Blood Pressure and Blood Flow Parameters
SN -
AU - Mazur K.
AU - Kalicka R.
AU - Frydrychowski A.
AU - Winklewski P.
PY - 2017
SP - 0
EP - 0
DO - 10.5220/0006139900001488