Eckersley LG, Howley LW, van der Velde ME, et al. - A total of 63 cases of fetal Ebstein anomaly and tricuspid valve dysplasia (EA/TVD) (40 with the retrograde ductal flow) and 22 cases of pulmonary atresia with intact ventricular septum (PAIVS) encountered from 2004 to 2015 along with 77 controls of similar gestational age were retrospectively recognized to explore global and segmental LV function in fetal EA/TVD compared with normal controls and PAIVS. It was hypothesized that LV dysfunction in EA/TVD was correlated with abnormal LV remodeling and interventricular mechanics. Fetal EA/TVD was related to a lack of spherical remodeling and the presence of mechanical dyssynchrony, which suitably added to decreased cardiac output and ejection fraction. Moreover, in fetal EA/TVD, clinical monitoring of the LV function is supported.