[Delayed delivery in twin pregnancy].

We report the observation of a primigravid patient, presenting a spontaneous twin pregnancy bichorionic and biamniotic. After expulsion of the first twin at 20 weeks and two days, expectancy is adopted and the second twin is born at 31 weeks and three days. In front of this not so frequent obstetrical situation and the absence of consensus, we discuss three points: cerclage, tocolysis and the prophylactic antibiotherapy. We specify that the attempt at differed childbirth is aimed at improving the foetal prognosis of the second twin by bringing it into the viable term, as well as obtaining a survival with the least possible number of sequels.