Changes in Anatomical Landmark Locations

NCT ID: NCT01168453

Last Updated: 2010-08-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2009-05-31

Study Completion Date

2010-04-30

Brief Summary

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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

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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

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Anesthesia, General Intubation

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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neutral head position

supine with neutral head position

head position change

Intervention Type BEHAVIORAL

AL-US distance measure using the ultrasound in two different head position

head rotation

supine with 30° head rotation

head position change

Intervention Type BEHAVIORAL

AL-US distance measure using the ultrasound in two different head position

Interventions

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head position change

AL-US distance measure using the ultrasound in two different head position

Intervention Type BEHAVIORAL

Eligibility Criteria

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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.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Soonchunhyang University Hospital

OTHER

Sponsor Role lead

Responsible Party

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President of Soonchunhyang University Hospital

Principal Investigators

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Sun Young Park, Dr.

Role: STUDY_CHAIR

Soonchuhyang University Hospital

Locations

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Soonchunhyang University Hospital

Seoul, , South Korea

Site Status

Countries

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South Korea

Other Identifiers

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LoIJV

Identifier Type: -

Identifier Source: org_study_id

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