Internal Jugular Vein Cross Sectional Area
Effect of Position on Cross Sectional Area of IJV
1 other identifier
observational
38
1 country
1
Brief Summary
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Aug 2007
Typical duration for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 1, 2007
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2010
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2010
CompletedFirst Submitted
Initial submission to the registry
March 29, 2010
CompletedFirst Posted
Study publicly available on registry
April 6, 2010
CompletedNovember 15, 2023
November 1, 2023
2.6 years
March 29, 2010
November 14, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Effect of trendelenburg and reverse trendelenburg position on the cross sectional area of the internal jugular vein
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
Eligibility Criteria
Patients admitted to Intensive care unit.
You may qualify if:
- adult medical or surgical ICU patients who have preexisting central venous (jugular/subclavian only) catheters.
You may not qualify if:
- 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.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Iowa
Iowa City, Iowa, 52246, United States
Related Publications (3)
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.
PMID: 7214938BACKGROUNDVinayak 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.
PMID: 17060544BACKGROUNDNassar 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.
PMID: 23392444DERIVED
Study Officials
- PRINCIPAL INVESTIGATOR
Gregory A Schmidt, mD
Roy J. & Lucille A. Carver College of Medicine, University of Iowa
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
Study Record Dates
First Submitted
March 29, 2010
First Posted
April 6, 2010
Study Start
August 1, 2007
Primary Completion
March 1, 2010
Study Completion
March 1, 2010
Last Updated
November 15, 2023
Record last verified: 2023-11