Surface EMG to assess and quantify upper airway dilators activity during non-invasive ventilation

Hug, Francois, Raux, Mathieu, Morelot-Panzini, Capucine and Similowski, Thomas (2011) Surface EMG to assess and quantify upper airway dilators activity during non-invasive ventilation. Respiratory Physiology and Neurobiology, 178 2: 341-345. doi:10.1016/j.resp.2011.06.007


Author Hug, Francois
Raux, Mathieu
Morelot-Panzini, Capucine
Similowski, Thomas
Title Surface EMG to assess and quantify upper airway dilators activity during non-invasive ventilation
Journal name Respiratory Physiology and Neurobiology   Check publisher's open access policy
ISSN 1569-9048
1878-1519
Publication date 2011-09
Year available 2011
Sub-type Article (original research)
DOI 10.1016/j.resp.2011.06.007
Volume 178
Issue 2
Start page 341
End page 345
Total pages 5
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Collection year 2012
Language eng
Formatted abstract
This study tests the hypothesis that the surface electromyographic (EMG) activity of upper airway dilators would respond to inspiratory loading in a healthy humans model of ventilator trigger asynchrony. EMG activity was measured in levator alae-nasi, genioglossus, parasternal, scalene and diaphragm muscles in eight subjects. They breathed quietly through a face mask and then were connected to a mechanical ventilator. Recordings were performed during nasal breathing against negative pressure triggers (-2.5%, -5% and -10% of maximal inspiratory pressure) and during oro-nasal breathing with a '-10% trigger'. Scalene, alae-nasi and genioglossus EMG activity level increased with the '-10% trigger'. While no breathing route dependence was found in scalene, the significant increase was only found for nasal breathing in alae-nasi and for oro-nasal breathing in genioglossus. The dyspnea intensity was significantly correlated with the EMG activity level of these three muscles. Surface EMG of airway dilator muscles could be used as a complementary tool to assess inspiratory drive during mechanical ventilation.
Keyword Alae nasi
Diaphragm
Genioglossus
Dyspnea
Drive
Muscle Activity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Health and Rehabilitation Sciences Publications
 
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Created: Wed, 28 Aug 2013, 16:22:06 EST by Francois Hug on behalf of School of Health & Rehabilitation Sciences