Airway stenosis
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. ASA I - III subjects; 2. Patients who underwent rigid bronchoscopy; 3. Subjects older than 18 years old; 4. Subjects with BMI < 30kg / m2.
Exclusion criteria
Exclusion criteria: 1. Patients with history of neck radiotherapy; 2. Patients with oropharyngeal malformation; 3. Severe patients with oxygen saturation less than 90%; 4. Severe organ system failure; 5. Those patients who have no obvious mental and nervous system diseases at present and in the past and have no history of taking sedative hypnotics and psychotropic drugs before operation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Transverse area of gastric antrum under ultrasound;tidal volume; | — |
Secondary
| Measure | Time frame |
|---|---|
| End-tidal carbon dioxide partial pressure;mean arterial pressure;Heart Rate;SpO2; | — |
Countries
China
Contacts
Department of Anesthesiology, Chaoyang Emergency General Hospital of Beijing