Open-heart cardiac surgeries were associated with decreased right ventricular longitudinal contraction (-18.7% vs -22.5%, P<0.001) and increased radial contraction compared to healthy controls.
Cohort (n=166)
Does open-heart cardiac surgery alter the right ventricular contractile pattern assessed by 3D echocardiography compared to healthy controls?
Open-heart cardiac surgeries induce a notable shift in the RV contractile pattern, characterized by decreased longitudinal contraction and increased radial contraction, which is important for accurate RV function assessment during follow-up.
Absolute Event Rate: -18.7% vs -22.5%
p-value: p=<0.001
Background The native right ventricular (RV) contraction pattern may be disrupted after open-heart cardiac surgeries, which increased the difficulty of accurately assessing RV systolic function in this setting. The study aimed to investigate the RV contractile pattern in patients after open-heart cardiac surgeries using three-dimensional echocardiography (3DE). Methods A cohort of 83 patients after open-heart cardiac surgeries and 83 healthy volunteers were enrolled prospectively. The RV global systolic function was evaluated by 3D-ejection fraction (EF), longitudinal contraction was assessed by 3D-longitudinal strain (LS), and radial contraction was evaluated by 3D-radial strain (RS). Results The RV contractile pattern was changed notably in patients after open-heart cardiac surgeries. The normal range of RVEF values was observed in the cardiac surgeries group. However, RV longitudinal contraction was markedly decreased (3D RVLS: -18.7±4.3% vs -22.5%±5.1%, P<0.001 ), while the radial systolic function was increased significantly (3D RVRS: 42.0±5.3% vs 37.8%±6.8%, P<0.001 ) in the cardiac surgeries cohort than in healthy controls. There were no correlations between the parameters of the RV contractile pattern and time since surgery. Furthermore, there were no differences in the RV contractile pattern among the subgroups of various surgeries. Conclusions The open-heart cardiac surgeries induced a notable shift in the RV contractile pattern. The observed differences could be clinically important in facilitating the accurate assessment of RV function during patient follow-up.
Zheng et al. (Wed,) conducted a cohort in Post open-heart cardiac surgeries (n=166). Open-heart cardiac surgeries vs. Healthy volunteers was evaluated on Right ventricular longitudinal contraction (3D RVLS) (p=<0.001). Open-heart cardiac surgeries were associated with decreased right ventricular longitudinal contraction (-18.7% vs -22.5%, P<0.001) and increased radial contraction compared to healthy controls.