Anesthesia, General, Intubation
Conditions
Keywords
jugular vein, anatomy, ultrasonography
Brief summary
This study was performed to ultrasonographically demonstrate the changes in relationship between the right internal jugular vein (IJV) and an anatomical landmark in two different head positions: neutral and rotational.
Detailed description
Background: This study was performed to ultrasonographically demonstrate the changes in relationship between the right IJV and an anatomical landmark in two different head positions: neutral and rotational. Methods: One hundred patients scheduled for elective surgery under general anesthesia with endotracheal intubation were enrolled in this study. The patients were placed in the supine position with a neutral head position and without a pillow. The apex of the triangle formed by the sternal and clavicular heads of the sternocleidomastoid muscle and clavicle was marked (anatomical landmark point: AL point). The ultrasonography of the neck anatomy was performed, and a mark was placed at the central point of the IJV to the skin (ultrasonography point: US point). The other investigator measured the distances from the AL point to the US point (AL-US distance). The patient's head was then turned 30° to the left; the same procedure was repeated and the AL-US distance was again measured. The changes in AL-US distance were calculated.
Interventions
BEHAVIORALhead position change
AL-US distance measure using the ultrasound in two different head position
Sponsors
Soonchunhyang University Hospital
Study design
Observational model
CASE_ONLY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* 100 patients weighing 40 - 100 kg and with heights of 140 - 190 cm
Exclusion criteria
* a history of neck surgery or trauma involving the neck, previous IJV-related interventions (e.g., venous catheterization), limitation of neck movement, and a body mass index ≥ 30.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| anatomical landmark point (AL) - ultrasonography point (US) distance(the distances from the AL point to the US point ) | within 5 minutes after itubation | The distance between the two points was considered positive if the US point was lateral to the AL point and negative if it was medial to the AL point. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The average depth of the right IJV | within 5 minutes after intubation | measure the depth of the right IJV center in ultrasonography |
Countries
South Korea
Outcome results
None listed