Patients undergoing general anesthesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Patients during 18 to 75 years of age; 2. American Society of Anesthesiologists (ASA) class ?~?; 3. schedule for surgery in the lateral decubitus position under general anesthesia with endotracheal intubation; 4. The mouth opening, the distance between nail and chin, and the range of motion of head and neck are all within normal limits.
Exclusion criteria
Exclusion criteria: 1. Patients with body mass index greater than 30kg/m^2; 2. limited neck movement; 3. mouth opening < 3cm; 4. Mallampati grade 3-4; 5. requiring double-luminal endotracheal intubation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the success rate of the intubation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Intubation time;Glottic exposure time;Hemodynamic changes;Position placement time; | — |
Countries
China