Conservative treatment after miscarriage of one fetus in multifetal pregnancies. Report of three cases and review of the literature.

One triplet and two twin pregnancies, with a delayed delivery of 70, 98 and 85 days, respectively, are presented. In all cases one neonate survived. Regarding both the literature and our own cases, we can make the following management suggestions: (a) the cord should be ligated as high as possible; (b) fetal growth, cervical length and dilatation should be observed by weekly ultrasound scans, and (c) it seems that both cervical cerclage and tocolysis prolong the delivery interval, while prophylactic antibiotics have no beneficial effect. Triplet pregnancy in a single uterus and with a 70-day interval between the delivery of the first and that of the remaining 2 fetuses is a rare occurrence. Moreover the delay of 98 days, in our second case, represents the fourth longest delivery interval reported in the literature.