hyoxemia
Conditions
Interventions
Traditional nasal cannula oxygen therapy group(C group):Oxygen is administered through a nasal cannula at a flow rate of 2 l/min, If necessary, the flow rate can be increased to 6 l/min.
High flow oxygenation via nasopharyngeal airway group(H group):Close one of the soft cavities of the high-flow dual-chamber nasal catheter with tape, and connect the other soft cavity to the nasophary
Sponsors
Shandong Provincial Public Health Clinical Center (Shandong University Affiliated Public Health Clinical Center)
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: 1. Patients scheduled for sedated bronchoscopy treatment; 2. BMI >= 28; 3. 18 <= Age <= 70 years old; 4. Patients are informed of this study and have signed the informed consent form.
Exclusion criteria
Exclusion criteria: 1.Coagulation disorders or a tendency to nosebleeds; 2. Previous history of nasopharyngeal surgery, nasal deformity, nasal tissue hyperplasia, etc.; 3. Respiratory failure or circulatory failure; 4. Acute myocardial infarction within the last 6 months; 5. Need for long-term oxygen therapy or home mechanical ventilation; 6. Oral, nasal or throat infections; 7. Pregnancy; 8. Intracranial hypertension, cranial base defect or fracture; 9. Tracheotomy status; 10. Need for endotracheal intubation or laryngeal mask ventilation; 11. Severe liver and kidney dysfunction.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| hypomexia(75%<=SpO2<90% ,<=60s); | — |
Secondary
| Measure | Time frame |
|---|---|
| The incidence of subclinical respiratory depression (90% 60 seconds);Minimun Spo2;The required airway intervention methods and the number of times needed; | — |
Countries
China
Contacts
Public ContactYanwu Jin
Shandong University Affiliated Public Health Clinical Center
Outcome results
None listed