Abstract：Objective: To investigate the functional factors and mechanism of cardiac enlargement and the sonographic features beneficial for screening, clinical interventional treatment and follow up. Methods: There were significant differences in hemodynamic parameters including right ventricular short axis fiber shortening(RVFS), RV ejection fraction(RVEF), middle cerebral artery resistence index(MCARI) and umbilical artery(UA) RI between the study group and control group(30 cases), P<0.01. Result: After delivery, the cardiac function became normal in 86.7% infants. Conclusions: Fetal functional cardiac enlargement in some cases may be temporary; the reasons and factors can be found out on sonography.
2007, Vol. 18 
