Difficult airway
Conditions
Interventions
VL exposure difficulty group/non VL exposure difficulty group:none
Sponsors
West China Hospital, Sichuan University
Eligibility
Sex/Gender
All
Age
18 Years to 100 Years
Inclusion criteria
Inclusion criteria: 1.Patients with ASA grade I to III who need to undergo general anesthesia with tracheal intubation. 2. Aged >18 years. 3.Sign the informed consent form and voluntarily participate in this study.
Exclusion criteria
Exclusion criteria: 1.Patients with mouth opening <2 transverse finger; patients with limited mandible movement; 2.Patients with total tooth loss; 3.encyesis; 4.Patients with maxillofacial deformities; 5.Patients with cervical spine injury, history of previous neck surgery, and limited neck mobility; 6.Patients with oropharynx and neck space; 7.Past history of difficult airway requiring awake intubation; or rapid sequential induction; 8.Patients undergoing endotracheal intubation using a direct laryngoscope or a bronchoscope; 9.mentally ill person; 10.Failure to read / understand the informed consent form; 11.Patients who cannot cooperate with ultrasound examination;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ultrasound parameters; | — |
Countries
China
Contacts
Public ContactGuo Chen
West China Hospital, Sichuan University
Outcome results
None listed