Exploration of Non-invasive High-frequency Oscillations in Human-machine Asynchrony in Healthy Subjects

Exploration of Non-invasive High-frequency Oscillations in Human-machine Asynchrony in Healthy Subjects : a Clinical Crossover Trial

High-frequency oscillatory ventilation (HFOV), as an ideal lung-protecting ventilation method, has been gradually applied to neonatal intensive care treatment, and is currently recommended as a rescue method for neonatal acute respiratory distress syndrome (ARDS) after conventional mechanical treatment fails. ventilation. Non-invasive high-frequency oscillatory ventilation (nHFOV) combines the advantages of HFOV and non-invasive ventilation methods, and has become a research hotspot in this field. Recommended to avoid intubation after failure of conventional non-invasive ventilation therapy. There is a lack of large-scale clinical trials systematically exploring its efficacy for intubation therapy. The increasing clinical application of nHFOV has also enriched its application in the treatment of other diseases. Human-machine asynchrony during non-invasive ventilation will seriously affect its efficacy, but no one has reported on the research related to nHFOV human-machine asynchrony.

Inclusion Criteria:

1. Age 25-40, males and females;
2. Pulmonary function test found that the subject's lung function was normal;
3. Pulmonary disease not related to the results of the experiment;
4. Willing to participate in the study;
5. Able to provide informed consent.

Exclusion Criteria:

1. Bronchiectasis; post-tuberculosis sequelae; rib cage deformities; neuromuscular disorders; and bronchial carcinoma.
2. Intolerant with NIV