None
Conditions
Interventions
Gold Standard:Improved laryngoscope exposure grading Cormack-Lehane grading (C-L grading): Grade = IIa indicates a non-difficult airway patient, while Grade = IIb indicates a suspected difficult airwa
Sponsors
The Second Affiliated Hospital of Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: 1. 18 to 65 years old 2. American Society of Anesthesiologists (ASA) physical status classification I~III 3. Requires tracheal intubation under general anesthesia
Exclusion criteria
Exclusion criteria: 1. The patient and their family refuse to participate in this study 2. Craniofacial deformities, scars, or large tumors 3. Significant limitation of neck movement 4. Dysfunction of important organs such as heart, brain, or lungs 5. Confirmed or history of difficult airway 6. History of mental illness or cognitive impairment, unable to cooperate with researchers 7. Recent upper respiratory tract infection or other diseases that may affect airway assessment 8. Pregnant or breastfeeding women
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Distance from skin to epiglottis ;Distance from skin to hyoid bone;Tongue-mental distance;Modified Cormack-Lehane classification (C-L classification);Accuracy; | — |
Secondary
| Measure | Time frame |
|---|---|
| Modified Mallampati classification;Mouth opening;Mandibulo-mental distance; | — |
Countries
China
Contacts
Public ContactJianfeng Ma
The Second Affiliated Hospital of Wenzhou Medical Unversity
Outcome results
None listed