Subglottic Airway Diameter in Normal Adults
Conditions
Brief summary
The aim of this study is to measure the dimension of airway in healthy Asian population. We recruit normal volunteer subjects aged more than 20 years old. Subglottic transverse diameter is measured and recorded by ultrasonography.
Detailed description
The aim of this study is to measure the dimension of airway in healthy Asian population. We recruit normal volunteer subjects aged more than 20 years old. Subglottic transverse diameter is measured and recorded by ultrasonography.
Interventions
assessment of subglottic diameter by ultrasonography
Sponsors
Study design
Eligibility
Inclusion criteria
* Adult healthy volunteers (aged more than 20 years) without pre-existing airway or respiratory diseases, neck tumors and a history of neck operation.
Exclusion criteria
* pre-existing airway or respiratory diseases, neck tumors and a history of neck operation.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| transverse glottic diameter by ultrasonography | one day | transverse glottic diameter by ultrasonography |
Countries
Taiwan