Difficult airway
Conditions
Interventions
Gold Standard:Cormack-Lehane classification
Index test:Difficult 
laryngoscope 
exposure, 
the 
of 
process 
to 
cord, 
from 
Sponsors
Department of Anesthesiology, the First Affilited Hospital of Guangxi Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. Patients aged 18-75 years; 2. Subjects with head and neck mobility > 90 degrees; 3. Patients with ASA grade <= III undergoing elective surgery; 4. Patients undergoing elective surgery under general anesthesia and endotracheal intubation; 5. Unconscious patients who can cooperate with the examination; 6. Patients without oral and maxillofacial deformity or neck surgery history.
Exclusion criteria
Exclusion criteria: 1. Patients who changed the anesthesia mode; 2. The patients or their families require to withdraw; 3. Patients with subglottic stenosis affecting endotracheal intubation; 4. Patients with incomplete or missing data collection.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Difficult laryngoscopy;The position of cervical transverse process corresponding to vocal cords(Tx);The distance from combination of vocal cords to connecting wire of two anterior tubercles of transverse processes (DVA); | — |
Secondary
| Measure | Time frame |
|---|---|
| Difficult Mask Ventilation; | — |
Countries
China
Contacts
Public ContactXu Chen
The First Affiliated Hospital of Guangxi Medical University
Outcome results
None listed