Upper airway obstruction
Conditions
Interventions
neutral-head group:the mask ventilation was performed with a neutral head position.
rotated-head group:the mask ventilation was performed with head rotated 45o to the right side.
Sponsors
Fudan University Shanghai Cancer Center
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1) Aged 18-80 years old; 2) ASA grades I-II; 3) Selective non cardiac surgery; 4) General anesthesia under tracheal intubation.
Exclusion criteria
Exclusion criteria: 1) Previous history of chronic lung disease and lung surgery; 2) There is a risk of reflux aspiration; 3) Combined cervical spondylosis, difficulty in rotating the head 45 degrees; 4) Difficult airway aspiration with clear tracheal intubation; 5) Facial or thoracic deformities; 6) There are implants in the body, such as pacemakers
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ratio of left/right lung ventilation distribution; | — |
Secondary
| Measure | Time frame |
|---|---|
| global inhomogeneity index, GI;centre of ventilation, CoV;regional ventilation delays standard deviation, RVDSD;ventilation distribution of four regional of interests; | — |
Countries
China
Contacts
Public ContactZhang Jun
Fudan University Shanghai Cancer Center
Outcome results
None listed