None
Conditions
Interventions
HF15 group:The use of nasal high flow oxygen supply 15L/min
HF30 group:The use of nasal high flow oxygen supply 30L/min
HF45 group:The use of nasal high flow oxygen supply 45L/min
Sponsors
The First Affiliated Hospital of Gannan Medical College
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. ASA grade ?-?; 2. Patient undergoing elective painless bronchoscopy; 3. Aged 18-80 years; 4. Agree to participate in this study and sign an informed consent form.
Exclusion criteria
Exclusion criteria: 1. Patients with puncture site infection, hematoma, tumor and other nerve block contraindications; 2. Patients allergic to experimental drugs, mentally ill, unable to cooperate with operation, and refusing to use experimental materials; 3. Full stomach, prone to reflux aspiration risk; 4. Patients with severe bleeding tendency; 5. Heart failure (NYHA>=III); 6. Pregnant and lactating women; 7. Patients with complete upper respiratory tract obstruction, skull base fracture or nasal bone fracture have contraindicated upper respiratory tract placement.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes in arterial blood carbon dioxide; | — |
Secondary
| Measure | Time frame |
|---|---|
| Incidence of hypoxemia;Tidal volume;minute ventilation;respiratory rate;Heart rate;blood pressure;Postoperative vomiting; | — |
Countries
China
Contacts
Public ContactShan Re'ai
The First Affiliated Hospital of Gannan Medical College
Outcome results
None listed