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The dynamics of changing internal jugular veins diameter based on increasing head elevation angle

CONTEXT: Venous outflow from the cranial cavity occurs mainly through the internal jugular vein (IJV). The increase in venous outflow through IJV is possible by head elevation. IJV collapse may indicate the reduction of blood volume in the vein and show the head elevation effectiveness. AIMS: The ai...

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Autores principales: Urakov, Aleksandr L., Kasatkin, Anton A., Nigmatullina, Anna R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4637962/
https://www.ncbi.nlm.nih.gov/pubmed/26628827
http://dx.doi.org/10.4103/0972-5229.167040
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author Urakov, Aleksandr L.
Kasatkin, Anton A.
Nigmatullina, Anna R.
author_facet Urakov, Aleksandr L.
Kasatkin, Anton A.
Nigmatullina, Anna R.
author_sort Urakov, Aleksandr L.
collection PubMed
description CONTEXT: Venous outflow from the cranial cavity occurs mainly through the internal jugular vein (IJV). The increase in venous outflow through IJV is possible by head elevation. IJV collapse may indicate the reduction of blood volume in the vein and show the head elevation effectiveness. AIMS: The aim of this study is to examine the impact of head elevation on IJV size. SUBJECTS AND METHODS: IJV ultrasound scanning in 31 healthy volunteers was carried after gradual head elevation at 15°, 30°, and 45°. Maximum and minimum IJV diameters were recorded. Mean ± standard deviation, median, range, and collapsibility index were calculated. RESULTS: Thirty-one volunteers were involved (19 males), their average age was 37.0 ± 11.5 years. Increasing the head elevation angle by 15°, 30° and 45° resulted in a decrease in IJV diameter in the right and left sides in all patients. The occurrence of the vein walls collapse corresponds to the collapsibility index equal to 100%. The results showed that 100% collapsibility index was recorded in 6 patients (19%) at 15° head elevation, in 12 patients (39%) at 30°, in 11 patients (35%) at 45°. In two volunteers (6%), 100% collapsibility index was not recorded even at maximum 45° head elevation. CONCLUSIONS: Ultrasound IJV scanning during gradual head elevation together with the collapsibility index calculation could be useful guidance for the venous outflow assessment. In order to prove and extend the study findings, more research is needed.
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spelling pubmed-46379622015-12-01 The dynamics of changing internal jugular veins diameter based on increasing head elevation angle Urakov, Aleksandr L. Kasatkin, Anton A. Nigmatullina, Anna R. Indian J Crit Care Med Brief Communication CONTEXT: Venous outflow from the cranial cavity occurs mainly through the internal jugular vein (IJV). The increase in venous outflow through IJV is possible by head elevation. IJV collapse may indicate the reduction of blood volume in the vein and show the head elevation effectiveness. AIMS: The aim of this study is to examine the impact of head elevation on IJV size. SUBJECTS AND METHODS: IJV ultrasound scanning in 31 healthy volunteers was carried after gradual head elevation at 15°, 30°, and 45°. Maximum and minimum IJV diameters were recorded. Mean ± standard deviation, median, range, and collapsibility index were calculated. RESULTS: Thirty-one volunteers were involved (19 males), their average age was 37.0 ± 11.5 years. Increasing the head elevation angle by 15°, 30° and 45° resulted in a decrease in IJV diameter in the right and left sides in all patients. The occurrence of the vein walls collapse corresponds to the collapsibility index equal to 100%. The results showed that 100% collapsibility index was recorded in 6 patients (19%) at 15° head elevation, in 12 patients (39%) at 30°, in 11 patients (35%) at 45°. In two volunteers (6%), 100% collapsibility index was not recorded even at maximum 45° head elevation. CONCLUSIONS: Ultrasound IJV scanning during gradual head elevation together with the collapsibility index calculation could be useful guidance for the venous outflow assessment. In order to prove and extend the study findings, more research is needed. Medknow Publications & Media Pvt Ltd 2015-10 /pmc/articles/PMC4637962/ /pubmed/26628827 http://dx.doi.org/10.4103/0972-5229.167040 Text en Copyright: © Indian Journal of Critical Care Medicine http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Brief Communication
Urakov, Aleksandr L.
Kasatkin, Anton A.
Nigmatullina, Anna R.
The dynamics of changing internal jugular veins diameter based on increasing head elevation angle
title The dynamics of changing internal jugular veins diameter based on increasing head elevation angle
title_full The dynamics of changing internal jugular veins diameter based on increasing head elevation angle
title_fullStr The dynamics of changing internal jugular veins diameter based on increasing head elevation angle
title_full_unstemmed The dynamics of changing internal jugular veins diameter based on increasing head elevation angle
title_short The dynamics of changing internal jugular veins diameter based on increasing head elevation angle
title_sort dynamics of changing internal jugular veins diameter based on increasing head elevation angle
topic Brief Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4637962/
https://www.ncbi.nlm.nih.gov/pubmed/26628827
http://dx.doi.org/10.4103/0972-5229.167040
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