None
Conditions
Interventions
Sponsors
Peking University Third Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: General anesthesia patients; ASA I - II; age 18-80 years old
Exclusion criteria
Exclusion criteria: The patient refused; predicted difficult airway; history of difficult intubation; History of neck surgery; History of maxillofacial surgery and trauma; Mouth opening is less than 2.5cm; History of throat surgery and trauma; laryngopharyngeal tumor; airway malformation; craniofacial abnormalities; critical patients; Limited movement of the cervical spine or mandible, Morbidly obese. Drug allergy; Difficulty in mask ventilation; the lens is easy to be contaminated because of the excessive sputum; SpO2 cannot be maintained above 90%; Hemodynamic instability
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The status of the laryngeal vestibule under head extension without chin lifting;The status of the laryngeal vestibule under head extension with chin lifting;The status of the laryngeal vestibule under head in a neutral position without chin lifting;The status of the laryngeal vestibule under head in neutral position with chin lifting;Glottis W-C-L classification under Macintosh laryngoscope exposure; | — |
Secondary
| Measure | Time frame |
|---|---|
| Gender;Age;Height;Weight;Body mass index;Thyromental distance;History of snoring;Neck circumference;History of sleep apnea;Mallampati classification;Mandibular advancement; | — |
Countries
China
Contacts
Public ContactMin Li
Department of Anesthesiology, Peking University Third Hospital
Outcome results
None listed