Abstract
Objective: The study was conducted to determine whether structural abnormalities of fetuses with fetal growth restriction（FGR）affects the mortality at day 28 after birth.
Methods: We retrospectively collected data from mothers who were diagnosed with FGR and delivered at our hospital between January 2014 and December 2022. The outcomes of day 7 infants were compared between the group with fetal structural abnormalities（malformation group）and the group without them（non-malformation group）.
Results: The malformation group comprised 37 cases and the non-malformation group, 53 cases. The mean birth weight was significantly lower in the malformation group（1,738g vs 2,346g, p ＜ 0.01）. The survival rate at 7 days of age was significantly lower in the malformation group（83.8% vs 96.2%, p＝0.04）. The cause of death was the malformation in the malformation group, whereas it was disease associated with prematurity in the non- malformation group. The short-term prognosis of patients with FGR was poorer for those with structural abnormalities than those without structural abnormalities.
Conclusion: The presence or absence of fetal structural abnormalities is important for predicting neonatal prognosis, and a careful search for structural abnormalities is necessary when fetal growth restriction is diagnosed.
