Follow-up
The mean follow-up was 5.9±2.8 years. In the surgical group, no mother died after discharge, and 1 (0.2%) offspring died after discharge. The corresponding number were 6 (1.5%) and 4 (0.7%) in the non-surgical group. (Figure 4 and 5 ). There were 21 (5.2%) patients with PH in the surgical group and 119 (20.0%) patients with PH in the non-surgical group, most of them required targeted drug therapy. In addition, there were 5 (1.2%) patients with cardiac insufficiency in the surgical group, less than 21 (3.5%) in the non-surgical group.