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

Approximately 20% of twin pregnancies are monochorionic—either monochorionic/diamniotic (MC/DA) or monochorionic/monoamniotic (MC/MA). The management of monochorionic twin pregnancy involves several additional interventions beyond the routine management of singletons or dichorionic twins. In 2020, the Society for Maternal-Fetal Medicine (SMFM) published checklists for the management of MC/DA and MC/MA twin pregnancies. SMFM now presents updated versions of these checklists reflecting recent changes in practice recommendations. Suggestions for implementing the use of the checklists into practice are also included. This Statement replaces the 2020 SMFM Special Statement: Updated checklists for management of monochorionic twin pregnancy.