Conclusions
uterine atony
UTERINE ATONY
In summary, under the conditions of this study, the ED90 of oxytocin infusion for the prevention of uterine atony was 9.3 IU/h following an initial bolus of 3 IU, which is higher than the current recommendations. This finding is helpful for clinical practice, because phenylephrine is routinely used in cesarean delivery. Further studies are needed to determine the appropriateness of the initial bolus of oxytocin after neonatal delivery.