Society for Maternal-Fetal Medicine Special Statement: Updated checklists for management of monochorionic twin pregnancy

Approximately 20% of twin pregnancies are monochorionic. The management of monochorionic twin pregnancy involves several additional interventions beyond the routine management of singletons or dichorionic twins. In 2015, the Society for Maternal–Fetal Medicine posted checklists for monochorionic/diamniotic twins and monochorionic/monoamniotic twins. The Society presents updated versions of these 2 checklists reflecting recent changes in practice recommendations. Suggestions for implementing the use of the checklists into antenatal care practices are also included.