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Updated: Jun 18, 2026

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography
Published on: October 28, 2020
Impact of right ventricular contractility on left ventricular dyssynchrony in patients with chronic systolic heart
Anne Bernard1, Erwan Donal, Christophe Leclercq
1Service de Cardiologie, CIT-IC 804, LTSI INSERM U 642, CHU Rennes, France.
Background:
Cardiac resynchronization therapy (CRT) is an important therapeutic approach for patients with symptomatic heart failure. The assessment of mechanical dyssynchrony, however, remains an issue. Little data are available regarding the influence of the right ventricle (RV) on left ventricle (LV) mechanical dyssynchrony as assessed by echocardiography.
Aims:
We sought to assess the impact of RV contractility on LV function and dyssynchrony.
Methods:
A total of 40 patients with congestive heart failure were analyzed. Twenty had RV dysfunction, as defined by a tricuspid annular systolic peak of tissue Doppler (SaRV)<11.5 cm/s, while the remaining 20 had SaRV>11.5 cm/s. All patients underwent echocardiography in order to determine RV function, LV function, and dyssynchrony.
Results:
The two populations were similar regarding diastolic function, atrio-ventricular conduction and interventricular dyssynchrony. Patients with RV dysfunction showed significantly more severe LV longitudinal dyssynchrony (130±103 ms vs. 62±59 ms; p=0.01). In addition, SaRV (systolic peak recorded at the tricuspid annulus) was correlated with LV longitudinal dyssynchrony (r=0.47; p=0.001). In contrast, LV radial contractility and dyssynchrony (103±110 ms vs. 100±78 ms; p=0.5) were not affected by RV function.
Conclusion:
Quantitative analysis of RV function is important when assessing LV function and dyssynchrony in patients with systolic heart failure. RV function is associated with intra-LV dyssynchrony, particularly when considering longitudinal function.
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