Internal Jugular Vein/Common Carotid Artery Cross-Sectional Area Ratio and Central Venous Pressure Publisher Pubmed



Hosseinnejad H¹ ; Mohammadinejad P¹ ; Ahmadi F¹ Show Affiliations
Source: Journal of Clinical Ultrasound Published:2016

Abstract

Purpose: To investigate the accuracy of the sonographic assessment of internal jugular vein/common carotid artery (IJV/CCA) cross-sectional area ratio in predicting central venous pressure (CVP) in critically ill patients. Methods: In adult patients who underwent central venous catheterization for monitoring of hemodynamic status, we used bedside sonography for diameter and cross-sectional area measurement of IJV and CCA. The IJV/CCA ratio was then calculated, and its correlation with CVP as well as its sensitivity, specificity, and positive and negative predictive values were analyzed. Results: We enrolled 52 patients with a mean age of 58.8±10.7 years. The mean IJV/CCA ratio was 1.89±0.83 and 1.90±0.83, respectively, at inspiration and expiration. A significant correlation was observed between IJV/CCA ratio and CVP (r=0.728, p<0.0001 at inspiration, and r=0.736, p<0.0001 at expiration). Sensitivity was 90%, specificity 86.36%, positive predictive values 90%, and negative predictive values 86.36% for the prediction of CVP <10cm H2O. Conclusions: Assessing the IJV/CCA ratio with a portable sonographic device could be a noninvasive alternative for central venous catheterization in order to evaluate the hemodynamic status of critically ill patients. © 2016 Wiley Periodicals, Inc.