Internal Jugular Vein Cross Sectional Area
November 14, 2023 updated by: University of Iowa
Effect of Position on Cross Sectional Area of IJV
The Trendelenburg position is used to distend the central veins, improving both success and safety of vascular cannulation.
The purpose of this study is to measure the cross-sectional area of the internal jugular vein (IJV) in three different positions, using surface ultrasound.
Study Overview
Status
Completed
Conditions
Study Type
Observational
Enrollment (Actual)
38
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
-
-
Iowa
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Iowa City, Iowa, United States, 52246
- University of Iowa
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-
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 and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Sampling Method
Non-Probability Sample
Study Population
Patients admitted to Intensive care unit.
Description
Inclusion Criteria:
- adult medical or surgical ICU patients who have preexisting central venous (jugular/subclavian only) catheters.
Exclusion Criteria:
- subjects with only a femoral venous catheter.
- subjects whose CVP measurement by the indwelling catheter exceeds 20cm of water.
- subjects younger than 18 years old.
- inability to obtain informed consent from the subject or the subjects authorized representative.
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
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Effect of trendelenburg and reverse trendelenburg position on the cross sectional area of the internal jugular vein
Time Frame: At time of data collection: physiologic study
|
There will be substantial anatomic variation in venous size.
Further, Trendelenburg positioning will have little impact on venous cross-sectional area in most subjects when compared with supine.
|
At time of data collection: physiologic study
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Gregory A Schmidt, mD, Roy J. & Lucille A. Carver College of Medicine, University of Iowa
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Bazaral M, Harlan S. Ultrasonographic anatomy of the internal jugular vein relevant to percutaneous cannulation. Crit Care Med. 1981 Apr;9(4):307-10. doi: 10.1097/00003246-198104000-00004.
- Vinayak AG, Levitt J, Gehlbach B, Pohlman AS, Hall JB, Kress JP. Usefulness of the external jugular vein examination in detecting abnormal central venous pressure in critically ill patients. Arch Intern Med. 2006 Oct 23;166(19):2132-7. doi: 10.1001/archinte.166.19.2132.
- Nassar B, Deol GRS, Ashby A, Collett N, Schmidt GA. Trendelenburg position does not increase cross-sectional area of the internal jugular vein predictably. Chest. 2013 Jul;144(1):177-182. doi: 10.1378/chest.11-2462.
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
August 1, 2007
Primary Completion (Actual)
March 1, 2010
Study Completion (Actual)
March 1, 2010
Study Registration Dates
First Submitted
March 29, 2010
First Submitted That Met QC Criteria
April 5, 2010
First Posted (Estimated)
April 6, 2010
Study Record Updates
Last Update Posted (Actual)
November 15, 2023
Last Update Submitted That Met QC Criteria
November 14, 2023
Last Verified
November 1, 2023
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- 20076778
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.
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