The Neuromechanics of Inspiratory Muscles in Mechanical Ventilation Liberation Success and Failure
Copyright © 2024, Aljohani et al..
BACKGROUND: Assessing the neuromechanical coupling of inspiratory muscles during mechanical ventilation (MV) could reveal the physiological mechanism of MV failure. This study examined the respiratory neuromechanical characteristics between MV liberation success and failure.
METHODS: This is an observational prospective study that included patients during their ventilator liberation process. Assessment of surface electromyography (sEMG) of inspiratory muscles, including the diaphragm and extra-diaphragmatic (scalene, sternocleidomastoid, and parasternal) muscles, was performed 15 minutes after the initiation of spontaneous breathing trials. Neuromechanical efficiency of the diaphragm (NMEDia) and extra-diaphragmatic muscles (NMEExtra) were compared in patients who were successfully liberated from MV with those who failed MV liberation within 72 hours after extubation.
RESULTS: A total of 45 patients were enrolled and 28 were female (67%). The sample median age was 63 (IQR 47, 69) years old. One-third of patients failed MV liberation within 72 hours of their spontaneous breathing trials (SBTs). NMEDia was significantly lower in patients who failed MV liberation with a root mean square of (M 0.27), (IQR 0.21, 0.37) compared with (M 0.371), (IQR 0.3, 0.631) for the success group (p=0.0222). The area under the curve for NMEDia was lower in the failure group (M 0.270), (IQR 0.160, 0.370) and (M 0.485), (IQR 0.280, 0.683) for the success group (p=0.024). However, NMEExtra was not statistically different between the two groups.
CONCLUSION: Reduced NMEDia is a predictor of MV liberation failure. NMEExtra was not a major contributor to MV liberation outcomes. Further studies should assess the performance of inspiratory muscles NME indices to predict MV liberation outcomes.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:16 |
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| Enthalten in: |
Cureus - 16(2024), 1 vom: 13. Jan., Seite e51570 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Aljohani, Hassan [VerfasserIn] |
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| Links: |
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| Themen: |
Diaphragm |
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| Anmerkungen: |
Date Revised 06.02.2024 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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| doi: |
10.7759/cureus.51570 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM368031268 |
|---|
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| 500 | |a published: Electronic-eCollection | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2024, Aljohani et al. | ||
| 520 | |a BACKGROUND: Assessing the neuromechanical coupling of inspiratory muscles during mechanical ventilation (MV) could reveal the physiological mechanism of MV failure. This study examined the respiratory neuromechanical characteristics between MV liberation success and failure | ||
| 520 | |a METHODS: This is an observational prospective study that included patients during their ventilator liberation process. Assessment of surface electromyography (sEMG) of inspiratory muscles, including the diaphragm and extra-diaphragmatic (scalene, sternocleidomastoid, and parasternal) muscles, was performed 15 minutes after the initiation of spontaneous breathing trials. Neuromechanical efficiency of the diaphragm (NMEDia) and extra-diaphragmatic muscles (NMEExtra) were compared in patients who were successfully liberated from MV with those who failed MV liberation within 72 hours after extubation | ||
| 520 | |a RESULTS: A total of 45 patients were enrolled and 28 were female (67%). The sample median age was 63 (IQR 47, 69) years old. One-third of patients failed MV liberation within 72 hours of their spontaneous breathing trials (SBTs). NMEDia was significantly lower in patients who failed MV liberation with a root mean square of (M 0.27), (IQR 0.21, 0.37) compared with (M 0.371), (IQR 0.3, 0.631) for the success group (p=0.0222). The area under the curve for NMEDia was lower in the failure group (M 0.270), (IQR 0.160, 0.370) and (M 0.485), (IQR 0.280, 0.683) for the success group (p=0.024). However, NMEExtra was not statistically different between the two groups | ||
| 520 | |a CONCLUSION: Reduced NMEDia is a predictor of MV liberation failure. NMEExtra was not a major contributor to MV liberation outcomes. Further studies should assess the performance of inspiratory muscles NME indices to predict MV liberation outcomes | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Bassler, John |e verfasserin |4 aut | |
| 700 | 1 | |a Lowman, John |e verfasserin |4 aut | |
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