Our data show that oxytocic perfusion should be liberally given during twin pregnancy labor, since its use is correlated with lower fetal mortality, especially of the second premature twin. This therapy might act, namely, by reducing the number of second-twin abnormal presentations. In our series, the higher mortality rate associated with lengthening of time interval between both births could be attributed to second-twin abnormal presentations. However, mortality rate versus time interval in spontaneous twin deliveries warrants obstetrical management providing second-twin birth within 15 minutes.