Neonatal Outcomes in Pregnant Women With Repaired and Unrepaired Congenital Heart Disease in Zhejiang, China

Objective To compare the neonatal outcomes in pregnant women with repaired vs unrepaired congenital heart disease (CHD). Methods Data on pregnant women with CHD was retrieved from our hospital records for the duration April, 2014 to December, 2021. Pregnant women with CHD were divided into two groups: simple CHD and moderate-to-complex CHD. Results In simple CHD group, neonatal outcomes were similar in pregnant women with repaired and unrepaired CHD. By contrast, in moderate-to-complex CHD group, the offspring of women with unrepaired CHD had lower gestational age [mean (SD) 34.3 (2.7) vs 36.8 (2.1) week; P =0.016] and lower birth weight [mean (SD) 2126.8 (711.9) vs 2720 (645.7); P =0.037] than those with repaired CHD. Infants of women with unrepaired moderate-to-complex CHD had a higher risk of premature delivery (87.5% vs 45.5%, P =0.013), low birth weight (81.3% vs 36.4%, P =0.04) and neonatal intensive care unit (NICU) admission (68.8% vs 27.3%, P =0.034). Conclusions Surgical repair before pregnancy in women with moderate-to-complex CHD significantly minimized the risks of neonatal complications.