کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5926489 | 1167361 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface EMG to assess and quantify upper airway dilators activity during non-invasive ventilation
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
فیزیولوژی
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چکیده انگلیسی
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 (â2.5%, â5% and â10% of maximal inspiratory pressure) and during oro-nasal breathing with a “â10% trigger”. Scalene, alae-nasi and genioglossus EMG activity level increased with the “â10% 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Respiratory Physiology & Neurobiology - Volume 178, Issue 2, 15 September 2011, Pages 341-345
Journal: Respiratory Physiology & Neurobiology - Volume 178, Issue 2, 15 September 2011, Pages 341-345
نویسندگان
François Hug, Mathieu Raux, Capucine Morelot-Panzini, Thomas Similowski,