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Diaphragmatic motion recorded by M-mode ultrasonography: limits of normality
Chest ultrasonography has proven to be useful in the diagnosis of diaphragm dysfunction. The aim of the present study was to determine the normal values of the motion of both hemidiaphragms recorded by M-mode ultrasonography. Healthy volunteers were studied while in a seated position. Diaphragmatic...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
European Respiratory Society
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7983192/ https://www.ncbi.nlm.nih.gov/pubmed/33778044 http://dx.doi.org/10.1183/23120541.00714-2020 |
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author | Boussuges, Alain Finance, Julie Chaumet, Guillaume Brégeon, Fabienne |
author_facet | Boussuges, Alain Finance, Julie Chaumet, Guillaume Brégeon, Fabienne |
author_sort | Boussuges, Alain |
collection | PubMed |
description | Chest ultrasonography has proven to be useful in the diagnosis of diaphragm dysfunction. The aim of the present study was to determine the normal values of the motion of both hemidiaphragms recorded by M-mode ultrasonography. Healthy volunteers were studied while in a seated position. Diaphragmatic excursions and diaphragm profiles were measured during quiet breathing, voluntary sniffing and deep breathing. Diaphragmatic excursions were assessed by M-mode ultrasonography, using an approach perpendicular to the posterior part of the diaphragm. Anatomical M-mode was used for the recording of the complete excursion during deep breathing. The study included 270 men and 140 women. The diaphragmatic motions during quiet breathing and voluntary sniffing were successfully recorded in all of the participants. The use of anatomical M-mode was particularly suitable for measurement of the entire diaphragmatic excursion during deep breathing. The statistical analysis showed that the diaphragmatic excursions were larger in men compared to women, supporting the determination of normal values based on sex. The lower and upper limits of normal excursion were determined for men and women for both hemidiaphragms during the three manoeuvres that were investigated. The lower limits of normal diaphragmatic excursions during deep breathing should be used to detect diaphragmatic hypokinesia, i.e. 3.3 and 3.2 cm in women and 4.1 and 4.2 cm in men for the right and the left sides, respectively. The normal values of the diaphragmatic motion and the lower and upper limits of normal excursion can be used by clinicians to detect diaphragmatic dysfunction. |
format | Online Article Text |
id | pubmed-7983192 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | European Respiratory Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-79831922021-03-26 Diaphragmatic motion recorded by M-mode ultrasonography: limits of normality Boussuges, Alain Finance, Julie Chaumet, Guillaume Brégeon, Fabienne ERJ Open Res Original Articles Chest ultrasonography has proven to be useful in the diagnosis of diaphragm dysfunction. The aim of the present study was to determine the normal values of the motion of both hemidiaphragms recorded by M-mode ultrasonography. Healthy volunteers were studied while in a seated position. Diaphragmatic excursions and diaphragm profiles were measured during quiet breathing, voluntary sniffing and deep breathing. Diaphragmatic excursions were assessed by M-mode ultrasonography, using an approach perpendicular to the posterior part of the diaphragm. Anatomical M-mode was used for the recording of the complete excursion during deep breathing. The study included 270 men and 140 women. The diaphragmatic motions during quiet breathing and voluntary sniffing were successfully recorded in all of the participants. The use of anatomical M-mode was particularly suitable for measurement of the entire diaphragmatic excursion during deep breathing. The statistical analysis showed that the diaphragmatic excursions were larger in men compared to women, supporting the determination of normal values based on sex. The lower and upper limits of normal excursion were determined for men and women for both hemidiaphragms during the three manoeuvres that were investigated. The lower limits of normal diaphragmatic excursions during deep breathing should be used to detect diaphragmatic hypokinesia, i.e. 3.3 and 3.2 cm in women and 4.1 and 4.2 cm in men for the right and the left sides, respectively. The normal values of the diaphragmatic motion and the lower and upper limits of normal excursion can be used by clinicians to detect diaphragmatic dysfunction. European Respiratory Society 2021-03-22 /pmc/articles/PMC7983192/ /pubmed/33778044 http://dx.doi.org/10.1183/23120541.00714-2020 Text en Copyright ©The authors 2021 http://creativecommons.org/licenses/by-nc/4.0/This version is distributed under the terms of the Creative Commons Attribution Non-Commercial Licence 4.0. For commercial reproduction rights and permissions contact permissions@ersnet.org (mailto:permissions@ersnet.org) |
spellingShingle | Original Articles Boussuges, Alain Finance, Julie Chaumet, Guillaume Brégeon, Fabienne Diaphragmatic motion recorded by M-mode ultrasonography: limits of normality |
title | Diaphragmatic motion recorded by M-mode ultrasonography: limits of normality |
title_full | Diaphragmatic motion recorded by M-mode ultrasonography: limits of normality |
title_fullStr | Diaphragmatic motion recorded by M-mode ultrasonography: limits of normality |
title_full_unstemmed | Diaphragmatic motion recorded by M-mode ultrasonography: limits of normality |
title_short | Diaphragmatic motion recorded by M-mode ultrasonography: limits of normality |
title_sort | diaphragmatic motion recorded by m-mode ultrasonography: limits of normality |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7983192/ https://www.ncbi.nlm.nih.gov/pubmed/33778044 http://dx.doi.org/10.1183/23120541.00714-2020 |
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