Hypoxemia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Children undergoing fiberbronchoscopy; 2. Oxygen saturation > 90% without oxygen inhalation before surgery; 3. Aged 5 months to 3 years old; 4. ASA grade 1-3.
Exclusion criteria
Exclusion criteria: 1. Skull fracture, facial fracture; 2. Changes in nasal septum or nasal cavity lead to significant obstruction of nasal airflow; 3. There is a risk of reflux aspiration; 4. Difficulty in mask ventilation and intubation; 5. Children who cannot maintain preoperative oxygenation and need supplementary ventilation; 6. Complicated with serious heart disease and brain disease; 7. Platelet count < 50*10^9/L.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| SPO2; | — |
Secondary
| Measure | Time frame |
|---|---|
| Transdermal carbon dioxide;Time of operation;Recovery times; | — |
Countries
China
Contacts
Children’s Hospital of Chongqing Medical University, No.136 Zhongshan Second Road, Yuzhong District, Chongqing, 400014, China