3.1 Fetal echocardiographic findings
Table 2 presents fetal cardiac assessments made at a median of 38 gestational weeks. Ventricular septal defect was found in 41.7% of the fetuses, most commonly of membranous subpulmonary type (50%). There was no ventricular disproportion or high-velocity flow in both the great arteries and DA, confirming the absence of constricted DA. The mean diameter of the FO was 5.9±1.2 mm. Restrictive FO was present in 5 fetuses (10.4%).