Difficult Airway
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Patients undergoing general anesthesia for elective surgery; 2. Aged > 18 years old; 3. ASA classification I-III; 4. Gender is not limited; 5. Voluntarily sign the informed consent.
Exclusion criteria
Exclusion criteria: 1. Exclude special patients such as head and neck deformities, oral and maxillofacial deformities, missing incisors, subglottic stenosis, severe maxillofacial trauma, and cervical spine diseases; 2. Patients with central nervous system diseases and mental diseases; 3. Communication impairment (language barrier, severe visual or hearing impairment).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| picture; | — |
Countries
China
Contacts
Henan Provincial People's Hospital