Changes in Anatomical Landmark Locations

August 6, 2010 updated by: Soonchunhyang University Hospital

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

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

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.

Study Type

Observational

Enrollment (Actual)

100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients scheduled for elective surgery under general anesthesia with endotracheal intubation, were enrolled in the study between May 2009 and February 2010.

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
neutral head position
supine with neutral head position
Behavioral: head position change
AL-US distance measure using the ultrasound in two different head position
head rotation
supine with 30° head rotation
Behavioral: head position change
AL-US distance measure using the ultrasound in two different head position

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
anatomical landmark point (AL) - ultrasonography point (US) distance(the distances from the AL point to the US point )
Time Frame: 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.
within 5 minutes after itubation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The average depth of the right IJV
Time Frame: within 5 minutes after intubation
measure the depth of the right IJV center in ultrasonography
within 5 minutes after intubation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Soonchunhyang University Hospital

Investigators

  • Study Chair: Sun Young Park, Dr., Soonchuhyang University Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2009

Primary Completion (Actual)

February 1, 2010

Study Completion (Actual)

April 1, 2010

Study Registration Dates

First Submitted

July 21, 2010

First Submitted That Met QC Criteria

July 22, 2010

First Posted (Estimate)

July 23, 2010

Study Record Updates

Last Update Posted (Estimate)

August 9, 2010

Last Update Submitted That Met QC Criteria

August 6, 2010

Last Verified

July 1, 2010

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • LoIJV

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Anesthesia, General

Clinical Trials on head position change

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in South Korea

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe