This was part of a retrospective study of triplet pregnancies referred to our fetal medicine unit for counselling and further management between 1986 and 2013. In all cases included in the study ultrasound examination was carried out at 10–14 weeks’ gestation to demonstrate three live fetuses, determine chorionicity from examination of the intertriplet membranes [2] and calculate gestational age from the crown-rump length of the biggest fetus [3] . Parents were counselled regarding the options of expectant management or ER. Maternal demographic characteristics, ultrasound findings and in those undergoing ER details of the procedure were recorded in a database. Pregnancy outcomes were collected into the same database when they became available from the referring hospitals, general practitioners or from the patients themselves.