Difficult airway
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.Age between 18 and 65 years; 2.Undergoing elective general anaesthetic tracheal intubation; 3.ASA <=III; 4.Signed informed consent;
Exclusion criteria
Exclusion criteria: 1.Patients with head and neck oral and maxillofacial trauma or deformity, subacoustic stenosis, cervical spine disease; 2.Patients with central nervous system diseases or mental disorders; 3.Patients with communication disorders, speech disorders, or severe visual or hearing impairments; 4.Patients who are unable to communicate due to coma, severe dementia, speech impediment or serious illness; 5.Participants in relevant clinical studies within the past three months;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| facial image;Chinese Pronunciation; | — |
Secondary
| Measure | Time frame |
|---|---|
| opening;Mallampati classification;mandibular protraction;Neck parameters;nail-chin distance (TMD);BMI;snoring; | — |
Countries
China
Contacts
West China Hospital of Sichuan University