Difficult mask ventilation
Conditions
Interventions
Difficulty mask ventilation group:The scores of the STOP-BANG questionnaire, the indicators of physical examination, and the indicators measured by airway ultrasound.
Non-mask ventilation difficulty group:The scores of the STOP-BANG questionnaire, the indicators of physical examination, and the indicators measured by airway ultrasound.
Sponsors
West China Hospital of Sichuan University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.OSA patients aged 18 years or older who are undergoing elective surgeries under general anesthesia with tracheal intubation. 2.Patients with American Society of Anesthesiologists classification (ASA classification) at grade I - III. 3.Patients who volunteer to participate in this study.
Exclusion criteria
Exclusion criteria: 1.Nasal cavity deformities and hyperplasia of tissues within the nasal cavity. 2.Patients with mouth opening less than two transverse fingers. 3.Patients with limited mandibular movement (temporomandibular joint diseases). 4.Patients with complete loss of all teeth. 5.Pregnancy. 6.Maxillofacial deformities and structural abnormalities. 7.Patients with cervical spine injuries, a history of previous neck surgeries, and limited neck movement. 8.Patients with space-occupying lesions in the oropharynx and neck. 9.Patients with a clear history of previous difficult airways who require awake intubation; or patients undergoing rapid sequence induction. 10.Patients who undergo tracheal intubation using a direct laryngoscope or a fiberoptic bronchoscope. 11.Patients with mental disorders. 12.Patients who are unable to read/understand the informed consent form. 13.Patients who cannot cooperate with the ultrasound examination.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Difficulty with mask ventilation; | — |
Secondary
| Measure | Time frame |
|---|---|
| upper lip bite test;Modified Mallampati test;the distance between the upper and lower incisors;Neck circumference;Thyromental distance;Sternomental distance;Neck hyperextension angle;Thyromental height;Transverse diameter of the tongue;Width of the tongue cross-section;Area of the tongue longitudinal section;Thickness of the tongue;Tongue volume;Distance between the tongue and the chin;distance from skin to hyoidbone;distance from skin to epiglottis;distance from skin to vocalcords;distance from skin to thyroidisthmus;Condylar process movement distance;STOP - Bang Questionnaire Scoring; | — |
Countries
China
Contacts
Public ContactJianqiao Zheng
West China Hospital of Sichuan University
Outcome results
None listed