Funding: This work was supported by: The Heart and Stroke Foundation of Quebec (AM and IAS), The Fonds de Recherche en Santé du Québec (AM), and The Bank of Montreal Center for the Study of Heart Disease in Women (IAS and JT).
Right Atrial Size Relates to Right Ventricular End-Diastolic Pressure in an Adult Population with Congenital Heart Disease
Article first published online: 22 DEC 2010
© 2010, Wiley Periodicals, Inc.
Volume 28, Issue 1, pages 109–116, January 2011
How to Cite
Do, D. H., Therrien, J., Marelli, A., Martucci, G., Afilalo, J. and Sebag, I. A. (2011), Right Atrial Size Relates to Right Ventricular End-Diastolic Pressure in an Adult Population with Congenital Heart Disease. Echocardiography, 28: 109–116. doi: 10.1111/j.1540-8175.2010.01277.x
Conflict of Interest: None declared.
- Issue published online: 23 JAN 2011
- Article first published online: 22 DEC 2010
- right atrium;
- right ventricle;
- diastolic dysfunction;
- right ventricular end-diastolic pressure;
- congenital heart disease;
- right ventricular function
Aim: Noninvasive markers of right ventricular (RV) diastolic dysfunction are limited by their lack of reproducibility and accuracy. We tested the hypothesis that right atrial (RA) size measured by echocardiography was correlated to invasive parameters of RV diastolic filling. Methods and Results: We studied 31 consecutive adult patients with congenital heart disease. From 2D echocardiography images, we measured maximal RA long-axis and short-axis lengths, area and volume. We compared each of these measures to right ventricular end-diastolic pressure (RVEDP) and mean right atrial pressure (mRAP) measured by right heart catheterization. RA long-axis, short-axis, area, and volume correlated significantly with RVEDP (r = 0.78, P < 0.001; r = 0.61, P < 0.001; r = 0.79, P < 0.001; and r = 0.75, P < 0.001, respectively) and mRAP (r = 0.66, P < 0.001; r = 0.56, P = 0.002; r = 0.70, P < 0.001; r = 0.68, P < 0.001, respectively). Single cut points for each echocardiographic parameter demonstrated reasonable accuracy to rule-in and rule-out RVEDP ≥7 mm Hg (sensitivity = 74%, specificity = 82%, positive LR = 4.1, negative LR = 0.32 for RA long-axis of 49 mm; sensitivity = 89%, specificity = 82%, positive LR = 4.9, negative LR = 0.12 for RA area of 14 cm2; sensitivity = 89%, specificity = 82%, positive LR = 4.9, negative LR = 0.13 for RA volume of 37 mL). Conclusion: RA size measured by echocardiography is strongly correlated to invasive parameters of RV diastolic filling and predicts high RV end-diastolic pressure. (Echocardiography 2011;28:109-116)