Central Venous Pressure (CVP) Assessment by Ultrasound and Physical Examination

This study has been completed.
Information provided by:
University of Iowa
ClinicalTrials.gov Identifier:
First received: March 26, 2010
Last updated: April 5, 2010
Last verified: March 2010

Ultrasound may be useful for noninvasively determining the central venous pressure. We intend to compare the clinical examination of the neck veins; ultrasound delineation of the internal jugular vein; and the central venous pressure measured with an intravascular catheter.

Central Venous Pressure

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: Use of Ultrasound to Determine Central Venous Pressure in Critically Ill Patients

Further study details as provided by University of Iowa:

Primary Outcome Measures:
  • Correlation of CVP measurement via ultrasound and central venous catheter [ Time Frame: At data collection: this is a physiologic study ] [ Designated as safety issue: No ]
    CVP as determined non-invasively with the transcutaneous ultrasound probe will correlate with a high degree of accuracy to the measurement obtained invasively by the catheter and pressure transducer.

Secondary Outcome Measures:
  • Correlation of CVP measurement via physical examination of IJV and EJV. [ Time Frame: At data collection: physiologic study ] [ Designated as safety issue: No ]
    Despite its more tortuous course and smaller caliber, the external jugular vein will be as reliable (compared to the catheter) as the internal jugular to estimate CVP

Enrollment: 38
Study Start Date: August 2007
Study Completion Date: March 2010
Primary Completion Date: March 2010 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Patients admitted to Intensive care unit.


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.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01099241

United States, Iowa
University of Iowa
Iowa City, Iowa, United States, 52246
Sponsors and Collaborators
University of Iowa
Principal Investigator: Gregory A Schmidt Roy J. & Lucille A. Carver College of Medicine, University of Iowa
  More Information

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Gregory A. Schmidt, MD, Roy J. & Lucille A. Carver College of Medicine, University of Iowa
ClinicalTrials.gov Identifier: NCT01099241     History of Changes
Other Study ID Numbers: 20076777
Study First Received: March 26, 2010
Last Updated: April 5, 2010
Health Authority: United States: Institutional Review Board

Keywords provided by University of Iowa:

ClinicalTrials.gov processed this record on April 16, 2014