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OpenTrials
Completed

NCT Number: NCT01099254

Internal Jugular Vein Cross Sectional Area

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.

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Key information

Conditions

Central Venous Pressure

Age range

18 year–120 year

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Iowa

Iowa City, Iowa, 52246, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Primary outcomes

  1. 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.

Sponsors and collaborators

Lead sponsor

University of Iowa

Other

Registry information

Official study title

Effect of Position on Cross Sectional Area of IJV

Important dates

Study start
2007
Primary completion
2010
Study completion
2010
First posted
Apr 6, 2010
Registry last updated
Nov 15, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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