difficult airway
Conditions
Interventions
Sedation observation group:MRI
Observation group of general anesthesia induction:Ultrasound, X-ray and Video Electronic Laryngoscope
Sponsors
First Affiliated Hospital of Guangzhou University of Chinese Medicine
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria for MRI examination before and after sedation: healthy subjects aged 18 to 40 years; Inclusion criteria before and after induction of general anesthesia: patients aged 18 to 65 who need cannulation for elective surgery under general anesthesia.
Exclusion criteria
Exclusion criteria: Patients with definite history of difficult airway disease; ASA >= grade 3; preoperative Hct < 35%, preoperative Hb < 110g/L; severe heart, liver and kidney dysfunction; complicated with severe cardiopulmonary disease; history of abnormal coagulation function; patients refused to accept.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Tongue area;Distance from skin to anterior wall of trachea;Narrow Distance of Upper Respiratory Tract;Minimum cross-sectional area of maxillopharynx and glossopharynx; | — |
Countries
China
Contacts
Public ContactWuhua Ma
The First Affiliated Hospital of Guangzhou University of Chinese Medicine
Outcome results
None listed