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

Shock Clinical Trial

Official title:

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

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT00596921
• Other study ID #: C.2008.029
• Secondary ID: CIRO.2008111
• Status: Not yet recruiting
• Phase: N/A
• First received: January 8, 2008
• Last updated: January 16, 2008

Study information

• Verified date: January 2008
• Source: Brooke Army Medical Center
• Contact: Robert A De Lorenzo, MD
• Phone: 210.916.0607
• Is FDA regulated: No
• Health authority: United States: Federal Government
• Study type: Observational

Clinical Trial Summary

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.

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.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 100
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years and older

Eligibility

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 Design

Observational Model: Case-Only, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

• Hypervolemia
• Hypovolemia
• Shock

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Brooke Army Medical Center

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Bedside ultrasound measurement of the diameter of the inferior vena cava and simultaneously measured central venous pressure.		Cross-sectional	No
Secondary	Anatomic view and phase of respiration at the time of measurements.		Cross-sectional	No