Bedside Ultrasound Measurement of the Inferior Vena Cava Correlates to Central Venous Pressure

January 16, 2008 updated by: Brooke Army Medical Center
This study proposes to examine the correlation of central venous pressure to measures of the diameter of the inferior vena cava as determined by bedside ultrasonography.

Study Overview

Status

Unknown

Conditions

Detailed Description

Central venous pressure (CVP) is a key physiologic estimate of preload, which in turn helps define the vascular fluid status. It is a particularly important parameter to measure in critically ill and injured patients who may require resuscitation. Unfortunately, measurement of the CVP requires invasive central venous catheters which can be difficult or time-consuming to insert. A non-invasive means of inferring the CVP would provide clinicians with an alternative. Preliminary data suggests that the diameter of the vena cava may reflect the CVP. Ultrasonography can provide reliable measures of internal body structures including the vena cava, and therefore may be useful in this regard. Collecting simultaneous values of vena cava diameter and CVPs will allow for the identification and quantification of correlation.

Study Type

Observational

Enrollment (Anticipated)

100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

  • Name: Robert A De Lorenzo, MD
  • Phone Number: 210.916.0607

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

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Hospitalized patients with central venous monitoring in place.

Description

Inclusion Criteria:

  • CVP or right heart catheter that is already in place and functioning properly

Exclusion Criteria:

  • Supine position or placement of ultrasound probe on abdomen is contraindicated.

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
Time Frame
Bedside ultrasound measurement of the diameter of the inferior vena cava and simultaneously measured central venous pressure.
Time Frame: Cross-sectional
Cross-sectional

Secondary Outcome Measures

Outcome Measure
Time Frame
Anatomic view and phase of respiration at the time of measurements.
Time Frame: Cross-sectional
Cross-sectional

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Brooke Army Medical Center

Investigators

  • Principal Investigator: Robert A De Lorenzo, MD, Brooke Army Medical Center

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 Registration Dates

First Submitted

January 8, 2008

First Submitted That Met QC Criteria

January 16, 2008

First Posted (ESTIMATE)

January 17, 2008

Study Record Updates

Last Update Posted (ESTIMATE)

January 17, 2008

Last Update Submitted That Met QC Criteria

January 16, 2008

Last Verified

January 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • C.2008.029
  • CIRO.2008111

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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