Fetal reduction in multiple pregnancy and asynchronous delivery of the second twin

Deferred delivery or asynchronous delivery is rare in multiple pregnancies. When the birth of the first twin occurs before 20-26 weeks, deferred delivery of the second twin is a therapeutic option that allows increasing the gestational age to achieve viability, pulmonary maturity and survival. A clinical case of deferred delivery of the second twin is presented, in which the first delivery was at 24+1/7 weeks and the second at 34+2/7, prolonging the pregnancy by 73 days and resulting in a preterm newborn of 2,150 g.