COPD Exacerbation, Non-invasive Ventilation
Conditions
Keywords
Noninvasive ventilation, High frequency oscillatory ventilation, COPD
Brief summary
High-frequency oscillatory ventilation (HFOV), as an ideal lung-protecting ventilation method, has been gradually used in neonatal critical care treatment, and is currently recommended as a rescue method for neonatal acute respiratory distress syndrome (ARDS) after failure of conventional mechanical ventilation. . Although its ability to improve oxygenation and enhance carbon dioxide (CO2) scavenging has been repeatedly demonstrated in laboratory studies, its impact on clinical outcomes in these patients remains uncertain. Non-invasive high-frequency oscillatory ventilation (nHFOV) combines the advantages of HFOV and non-invasive ventilation methods, and has become a current research hotspot in this field. It is recommended to be used to avoid intubation after conventional non-invasive ventilation therapy fails. For the treatment of intubation, there is still a lack of large-scale clinical trials to systematically explore its efficacy. The gradual increase in the clinical application of nHFOV has also enriched its use in the treatment of other diseases
Interventions
DEVICENon-invasive high-frequency oscillatory
Non-invasive high-frequency oscillatory ventilation generates high-frequency pressure fluctuations in the airway caused by the opening and closing of a solenoid valve.
Noninvasive Bilevel Positive Pressure Ventilation.
Sponsors
Guangzhou Institute of Respiratory Disease
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
Patients were randomized to receive one hour each of the two non-invasive ventilation modes before and after, and one hour of washout after receiving the first mode of ventilation before receiving the second intervention.
Eligibility
Sex/Gender
ALL
Age
40 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
1. Age 40-80, males and females; 2. Stage III and IV COPD and PaCO2≥50mmHg; 3. Similar with non-invasive ventilation; 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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Partial pressure of carbon dioxide in peripheral blood | within 50 minutes after intervention | After the peripheral blood was arterialized for 10 minutes, 100 ul of the patient's finger peripheral blood was taken to measure the partial pressure of carbon dioxide in the peripheral blood. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Asynchrony index | within 50 minutes after intervention | Asynchrony index is defined as the number of asynchrony events divided by the total respiratory rate computed as the sum of the number of ventilator cycles (triggered or not) and of wasted efforts: asynchrony Index (expressed in percentage) = number of asynchrony events/total respiratory rate (ventilator cycles +wasted efforts) × 100 |
Contacts
Primary ContactJianyi Niu, MD
Backup ContactRongchang Chen, PhD
Outcome results
None listed