Central Venous Pressure
Conditions
Keywords
CVP, US, Ultrasonography
Brief summary
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.
Interventions
None listed
Sponsors
University of Iowa
Study design
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
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 |
|---|---|---|
| Correlation of CVP measurement via ultrasound and central venous catheter | At data collection: this is a physiologic study | 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
| Measure | Time frame | Description |
|---|---|---|
| Correlation of CVP measurement via physical examination of IJV and EJV. | At data collection: physiologic study | 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 |
Countries
United States
Outcome results
None listed