None
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Aged over 18 years old, regardless of gender; 2) ASA classification I to III are planned to undergo elective surgery under general anesthesia; 3) There is no vital organ dysfunction in preoperative assessment; 4) There is no difficult airway in preoperative assessment; 5) No history of long-term use of drugs that affect blood pressure or anti-arrhythmic drugs; 6) Clearly understand the test process and voluntarily participate in this study, and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1) Rapid sequence induction or emergency surgery is required; 2) Emergency airway protection is required; 3) Patients with expected or known difficult airway; 4) Pregnancy; 5) The researcher believes that the patient is not suitable to participate in this trial or the patient refuses.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Time to complete intubation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Time to see the glottis; | — |
Countries
China
Contacts
The Second Xiangya Hospital of Central South University