Abstract| Volume 23, ISSUE 10, SUPPLEMENT , S39, October 2017

Good Predictor of Right Atrial Pressure in the Inferior Vena Cava Parameters by 2-Dimensional Echocardiogrphy

      Background: Our purpose was to find the useful predictive factor for right atrial pressure (RAP), in several parameters of inferior vena cava (IVC) in 2-dimensional echocardiography. Methods: Thirty two patients who underwent right heart catheterization and echocardiography were enrolled. Maximum and minimum diameters in long-axis images, and short diameter, long diameter, area, and sphericity index in short-axis were measured. We evaluated the association between RAP and each index. Results: Among several indices, sphericity index of IVC showed the largest area under the ROC to detect RAP > 8 mmHg (AUC = 0.738). When a cutoff value of 0.54 for sphericity index of IVC was used, the sensitivity and specificity were 78% and 79% (Figure). Conclusion: Sphericity index could be a useful parameter to predict high RAP in several IVC parameters.
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