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The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation
The jugular venous pulse (JVP) provides valuable information about cardiac haemodynamics and filling pressures and is an indirect estimate of the central venous pressure (CVP). Recently it has been proven that JVP can be obtained by measuring the cross-sectional area (CSA) of the IJV on each sonogra...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4689897/ https://www.ncbi.nlm.nih.gov/pubmed/26783380 http://dx.doi.org/10.1155/2015/170756 |
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author | Sisini, Francesco Toro, Eleuterio Gambaccini, Mauro Zamboni, Paolo |
author_facet | Sisini, Francesco Toro, Eleuterio Gambaccini, Mauro Zamboni, Paolo |
author_sort | Sisini, Francesco |
collection | PubMed |
description | The jugular venous pulse (JVP) provides valuable information about cardiac haemodynamics and filling pressures and is an indirect estimate of the central venous pressure (CVP). Recently it has been proven that JVP can be obtained by measuring the cross-sectional area (CSA) of the IJV on each sonogram of an ultrasound B-mode sonogram sequence. It has also been proven that during its pulsation the IJV is distended and hence that the pressure gradient drives the IJV haemodynamics. If this is true, then it will imply the following: (i) the blood velocity in the IJV is a periodic function of the time with period equal to the cardiac period and (ii) the instantaneous blood velocity is given by a time function that can be derived from a flow-dynamics theory that uses the instantaneous pressure gradient as a parameter. The aim of the present study is to confirm the hypothesis that JVP regulates the IJV blood flow and that pressure waves are transmitted from the heart toward the brain through the IJV wall. |
format | Online Article Text |
id | pubmed-4689897 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Hindawi Publishing Corporation |
record_format | MEDLINE/PubMed |
spelling | pubmed-46898972016-01-18 The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation Sisini, Francesco Toro, Eleuterio Gambaccini, Mauro Zamboni, Paolo Behav Neurol Research Article The jugular venous pulse (JVP) provides valuable information about cardiac haemodynamics and filling pressures and is an indirect estimate of the central venous pressure (CVP). Recently it has been proven that JVP can be obtained by measuring the cross-sectional area (CSA) of the IJV on each sonogram of an ultrasound B-mode sonogram sequence. It has also been proven that during its pulsation the IJV is distended and hence that the pressure gradient drives the IJV haemodynamics. If this is true, then it will imply the following: (i) the blood velocity in the IJV is a periodic function of the time with period equal to the cardiac period and (ii) the instantaneous blood velocity is given by a time function that can be derived from a flow-dynamics theory that uses the instantaneous pressure gradient as a parameter. The aim of the present study is to confirm the hypothesis that JVP regulates the IJV blood flow and that pressure waves are transmitted from the heart toward the brain through the IJV wall. Hindawi Publishing Corporation 2015 2015-12-09 /pmc/articles/PMC4689897/ /pubmed/26783380 http://dx.doi.org/10.1155/2015/170756 Text en Copyright © 2015 Francesco Sisini et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Sisini, Francesco Toro, Eleuterio Gambaccini, Mauro Zamboni, Paolo The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation |
title | The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation |
title_full | The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation |
title_fullStr | The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation |
title_full_unstemmed | The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation |
title_short | The Oscillating Component of the Internal Jugular Vein Flow: The Overlooked Element of Cerebral Circulation |
title_sort | oscillating component of the internal jugular vein flow: the overlooked element of cerebral circulation |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4689897/ https://www.ncbi.nlm.nih.gov/pubmed/26783380 http://dx.doi.org/10.1155/2015/170756 |
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