Monochorionic twin pregnancies conceived through assisted reproduction: Maternal and perinatal clinical outcomes

ART-conceived MC pregnancies show an increased burden of maternal complications. Fetal and neonatal outcomes did not differ significantly from those of spontaneously conceived pregnancies after adjustments, despite higher point estimates for adverse outcomes. In the context of the global rise in ART use, these findings underscore the need for further clinical and basic-science research to better characterize the magnitude and mechanisms of ART-associated risks in MC pregnancies.