None
Conditions
Interventions
Difficult laryngoscopy exposure group:None
Non-difficult laryngoscopy exposure group:None
Sponsors
Beijing Friendship Hospital Pinggu Campus,Capital Medical University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1.Age: 18-80 years old,; 2.ASA grade I - III; 3.It is planned to perform elective tracheal intubation for general anesthesia; 4.Voluntarily sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1.Temporomandibular joint diseases Cervical spine fractures; 2.Oral and maxillofacial trauma, deformity or tumor affecting airway assessment; 3.Those who are pregnant, have mental disorders or are unable to cooperate with the examination; 4.Those who have been diagnosed with difficult airway and are conscious with tracheal intubation; 5.There is a history of difficult airway or tracheotomy; 6.dislocations, and severe cervical spondylosis.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Condylar range of motion; | — |
Secondary
| Measure | Time frame |
|---|---|
| Nail and chin spacing;opening degree;Range of motion of the neck;Epiglottis - skin distance;Modified Mallampati Score;Upper lip occlusion test;Hyoid bone - skin surface distance; | — |
Countries
China
Contacts
Public ContactXiaoqian Wang
Beijing Pinggu District Hospital
Outcome results
None listed