NCT01168453

Changes in Anatomical Landmark Locations

Changes in the Relationship Between the Right Internal Jugular Vein and Anatomical Landmark After Head Rotation

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 100 (actual)
• Sponsor: Soonchunhyang University Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Not accepted

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.

Conditions

• Anesthesia, General
• Intubation

Interventions

Type	Name	Description
BEHAVIORAL	head position change	AL-US distance measure using the ultrasound in two different head position

Timeline

• Start date: 2009-05-01
• Primary completion: 2010-02-01
• Completion: 2010-04-01
• First posted: 2010-07-23
• Last updated: 2010-08-09

Locations

1 site across 1 country: South Korea