Right ventricular outflow tract systolic excursion: a novel echocardiographic parameter of right ventricular function
- 19 March 2012
- journal article
- research article
- Published by Oxford University Press (OUP) in European Heart Journal – Cardiovascular Imaging
- Vol. 13 (10), 871-877
- https://doi.org/10.1093/ehjci/jes055
Abstract
Aims Right ventricular (RV) function has important prognostic and therapeutic implications. Assessment of RV function using echocardiography is challenging. The aim of this study was to evaluate a new parameter of RV function, right ventricular outflow tract systolic excursion (RVOT_SE). Methods and results RVOT_SE was measured using M-Mode echocardiography from the parasternal short-axis view at the level of the aortic valve, and was defined as the systolic excursion of the RVOT anterior wall. RVOT_SE was measured in 50 patients (age 64 ± 18 years, 28 males) with normal RV function [RV fractional area change (FAC) ≥35% and tricuspid annular plane systolic excursion (TAPSE) ≥1.6 cm] and 40 patients (age 68 ± 12 years, 35 males) with reduced RV function (RV FAC P < 0.0001). TAPSE was 2.2 ± 0.4 cm in the normal RV group and 1.0 ± 0.2 cm in the reduced RV group (P < 0.0001). RVOT_SE was 9.6 ± 1.5 mm in the normal RV group and 1.7 ± 1.1 mm in the reduced RV group (P < 0.0001). RVOT_SE P = 0.004. Conclusion RVOT_SE is a novel, simple, and promising parameter for assessing RV function, and it is associated with poor survival.Keywords
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