Reappraisal of the use of inferior vena cava for estimating right atrial pressure.

Journal Article (Journal Article)

Estimation of right atrial pressure (RAP) using echocardiographic measurement of the inferior vena caval (IVC) size along with its respirophasic variation is commonly performed despite the paucity of data that critically evaluates this technique. In this study, we systematically evaluated echocardiographic imaging of the IVC for estimation of RAP in 102 patients undergoing right heart catheterization. This study established cut-off values using receiver operating characteristic analysis for 8 different IVC parameters and then prospectively tested these parameters for their ability to predict an elevated RAP. The IVC size cutoff with optimum predictive use for RAP above or below 10 mm Hg was 2.0 cm (sensitivity 73% and specificity 85%) and the optimal IVC collapsibility cutoff was 40% (sensitivity 73% and specificity 84%). Traditional classification of RAP into 5-mm Hg ranges based on IVC size and collapsibility performed poorly (43% accurate) and a new classification scheme is proposed.

Full Text

Duke Authors

Cited Authors

  • Brennan, JM; Blair, JE; Goonewardena, S; Ronan, A; Shah, D; Vasaiwala, S; Kirkpatrick, JN; Spencer, KT

Published Date

  • July 2007

Published In

Volume / Issue

  • 20 / 7

Start / End Page

  • 857 - 861

PubMed ID

  • 17617312

Electronic International Standard Serial Number (EISSN)

  • 1097-6795

Digital Object Identifier (DOI)

  • 10.1016/j.echo.2007.01.005


  • eng

Conference Location

  • United States