The comfort assessment in healthy adults during constant-flow mode in noninvasive ventilator
© 2021 The Authors. The Clinical Respiratory Journal published by John Wiley & Sons Ltd..
BACKGROUND: From the point of view of machine construction and hydrodynamics, this paper innovatively proposes that the essence of high-flow nasal cannula (HFNC) is a constant-flow mode in noninvasive ventilator (NIVCFM). This study enrolled healthy adults as study subjects to assess the subjective comfort assessed by visual analog scoring scale of NIVCFM/HFNC and objective comfort measured by the noise level generated by NIVCFM/HFNC, aiming to provide a scientific basis for the rational clinical application of NIVCFM/HFNC.
METHODS: Forty-four healthy adults participated in this study. The noise generated by NIVCFM/HFNC is measured, and the comfort is evaluated during NIVCFM delivery at flow rates of 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, and 60 L/min.
RESULTS: When the ventilator flow rate is 60 L/min, the maximum noise is 65.9 dB, increasing noise by 23.7 dB from a baseline of 42.2 dB at the flow rate of 0 L/min. There was a strong nonlinear positive correlation between the noise level and the flow rates. The median score for dry mouth, nose or throat, dysphagia, sore throat, and other discomfort was 0. The median score for dyspnea was 0 at 0-30 L/min, 1 at 35-55 L/min, and 2 at 60 L/min.
CONCLUSIONS: The grater the flow rate, the greater the noise generated by NIVCFM/HFNC (<65.9 dB). The maximum flow rate that most healthy adults can able to tolerate is 30 L/min, and the main discomfort is dyspnea.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:16 |
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| Enthalten in: |
The clinical respiratory journal - 16(2022), 2 vom: 21. Feb., Seite 123-129 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yao, Juanjuan [VerfasserIn] |
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| Links: |
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| Themen: |
Comfort |
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| Anmerkungen: |
Date Completed 08.02.2022 Date Revised 16.07.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/crj.13459 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM33268086X |
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| 500 | |a Date Revised 16.07.2022 | ||
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2021 The Authors. The Clinical Respiratory Journal published by John Wiley & Sons Ltd. | ||
| 520 | |a BACKGROUND: From the point of view of machine construction and hydrodynamics, this paper innovatively proposes that the essence of high-flow nasal cannula (HFNC) is a constant-flow mode in noninvasive ventilator (NIVCFM). This study enrolled healthy adults as study subjects to assess the subjective comfort assessed by visual analog scoring scale of NIVCFM/HFNC and objective comfort measured by the noise level generated by NIVCFM/HFNC, aiming to provide a scientific basis for the rational clinical application of NIVCFM/HFNC | ||
| 520 | |a METHODS: Forty-four healthy adults participated in this study. The noise generated by NIVCFM/HFNC is measured, and the comfort is evaluated during NIVCFM delivery at flow rates of 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, and 60 L/min | ||
| 520 | |a RESULTS: When the ventilator flow rate is 60 L/min, the maximum noise is 65.9 dB, increasing noise by 23.7 dB from a baseline of 42.2 dB at the flow rate of 0 L/min. There was a strong nonlinear positive correlation between the noise level and the flow rates. The median score for dry mouth, nose or throat, dysphagia, sore throat, and other discomfort was 0. The median score for dyspnea was 0 at 0-30 L/min, 1 at 35-55 L/min, and 2 at 60 L/min | ||
| 520 | |a CONCLUSIONS: The grater the flow rate, the greater the noise generated by NIVCFM/HFNC (<65.9 dB). The maximum flow rate that most healthy adults can able to tolerate is 30 L/min, and the main discomfort is dyspnea | ||
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| 700 | 1 | |a He, Kaixin |e verfasserin |4 aut | |
| 700 | 1 | |a Ma, Dedong |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Hongxiu |e verfasserin |4 aut | |
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