None listed
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Adult patients aged 19-69 2. American society of anesthesiologist physical status I-II 3. patients under general anesthesia
Exclusion criteria
Exclusion criteria: 1. previous history of surgery on head and neck 2. previous cannulation of internal jugular vein 3. History of joint disorder on head and neck
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| diameter of internal jugular vein | — |
Secondary
| Measure | Time frame |
|---|---|
| percentage of overlap between internal jugular vein and carotid artery, overlap % = [overlap (mm) /carotid artery diameter (mm) × 100 | — |
Countries
Korea, Republic of
Contacts
Seoul National University Bundang Hospital