Internal Jugular Vein Cross Sectional Area

Effect of Position on Cross Sectional Area of IJV

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT01099254

Enrollment

Registered

2010-04-06

Start date

2007-08-31

Completion date

2010-03-31

Last updated

2023-11-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Central Venous Pressure

Keywords

CVP, US, Trendelenburg position, Ultrasound, Head Down Tilt

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.

Interventions

None listed

Study design

Observational model

OTHER

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 120 Years

Healthy volunteers

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.

Design outcomes

Primary

Measure	Time frame	Description
Effect of trendelenburg and reverse trendelenburg position on the cross sectional area of the internal jugular vein	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.

Countries

United States

Outcome results