Start offering antenatal corticosteroids to women delivering between 34 0/7 and 36 6/7 weeks of gestation to improve newborn outcomes
Consider these 3 options for your practice
As noted, the Antenatal Late Preterm Steroids trial investigators are pursuing long-term follow-up of the children born after maternal treatment with antenatal glucocorticoids. Both ACOG and the Society for Maternal-Fetal Medicine (SMFM)11 recommend administration of antenatal glucocorticoids to women at high risk for late preterm delivery. However, since some experts are concerned that a great number of babies born late preterm will have been exposed to glucocorticoids, whose long-term risks are not well known, with only a few babies having a modest short-term benefit, 3 options could be considered for your clinical practice.
Related article:
Need for caution before extending the use of antenatal corticosteroids beyond 34 weeks’ gestation
Option 1
Follow the ACOG and SMFM suggestion that all women with a high risk of late preterm birth be offered antenatal corticosteroids. Counsel the mother and family about the potential risks and benefits and involve them in the decision.
Two alternative options are to limit antenatal corticosteroid treatment to subgroups of late preterm babies most likely to benefit from treatment, those born by cesarean delivery and those born at the earliest gestational ages.
Option 2
Limit the use of antenatal corticosteroids in the late preterm to women who are scheduled for a cesarean delivery for an obstetric indication between 34 0/7 weeks and 36 6/7 weeks of gestation. This approach greatly reduces the number of babies born in the late preterm that will be exposed to antenatal corticosteroids and focuses the treatment on a subset of babies who are certain to be born preterm and most likely to benefit.
Option 3
Limit the use of antenatal corticosteroids to women at high risk for preterm birth whose newborns are most likely to benefit from treatment—women at 34 0/7 to 35 6/7 weeks of gestation. Neonates born in the 34th or 35th week of gestation are at higher risk for morbidity than those born in the 36th week of gestation and are likely to derive the greatest benefit from antenatal corticosteroid treatment.3,12
My advice
Yogi Berra advised, “It is tough to make predictions, especially about the future.” Although ACOG and SMFM have recommended administration of glucocorticoids to women at high risk for late preterm birth, many experts caution that until the long-term effects of antenatal corticosteroids are better characterized we should limit the use of corticosteroids in the late preterm.5,6,13 My prediction is that long-term follow-up studies will not document significant adverse effects of one course of late preterm antenatal glucocorticoid treatment on children. My advice is to start offering antenatal corticosteroids to some women at high risk for late preterm delivery.
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