difficult airway
Conditions
Interventions
Gold Standard:Traditional difficult airway prediction methods based on body surface anatomy such as maximal mouth opening, thyromental distance, modified Mallampati classification, and Cormack-Lehane
Index test:ultrasound 
technology
Sponsors
Women's Hospital School Of Medicine Zhejiang University
Eligibility
Sex/Gender
Female
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: All patients had no electrolyte disturbance and infection, immunity, endocrine system disease before surgery, and did not take non-steroidal anti-inflammatory drugs and hormone drugs in recent time.
Exclusion criteria
Exclusion criteria: Patients with underlying central nervous system diseases, liver disease, renal dysfunction, and abnormal lung function were excluded. Patients with maxillofacial deformities, oropharynx, maxillofacial and neck tumors, cervical instability, fracture or spinal cord injury, and loose incisors were excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| tongue thickness; | — |
Countries
China
Contacts
Public ContactXinzhong Chen
Women's Hospital School Of Medicine Zhejiang University
Outcome results
None listed