External cephalic version (ECV) is the manipulation of the fetus, through the maternal abdomen, to a cephalic presentation. The rationale behind ECV is to reduce the incidence of breech presentation at term and therefore the associated risks, particularly of avoidable caesarean section. This guideline summarises the evidence regarding the routine use of ECV for breech presentation.
The evidence concerning mode and technique of delivery of the persistent breech presentation is summarised in Green-top Guideline No. 20b, The Management of Breech Presentation.