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Am J Obstet Gynecol. 2009 Feb;200(2):156.e1-4. doi: 10.1016/j.ajog.2008.08.068. Epub 2008 Dec 25.

Neonatal and maternal outcomes associated with elective term delivery.

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1
Hospital Corporation of America, Nashville, TN, USA.

Abstract

OBJECTIVE:

To quantify adverse neonatal and maternal outcomes associated with elective term delivery at less than 39 completed weeks of gestation.

STUDY DESIGN:

Prospective observational study conducted in 27 hospitals over the course of 3 months in 2007.

RESULTS:

Of 17,794 deliveries, 14,955 (84%) occurred at 37 weeks or greater. Of term deliveries, 6562 (44%) were planned, rather than spontaneous. Among the planned deliveries, 4645 (71%) were purely elective; 17.8% of infants delivered electively without medical indication at 37-38 weeks and 8% of those delivered electively at 38-39 weeks required admission to a newborn special care unit for an average of 4.5 days, compared with 4.6% of infants delivered at 39 weeks or beyond (P < .001). Cesarean delivery rate in women undergoing induction of labor was not influenced by gestational age but was highly influenced by initial cervical dilatation and parity, ranging from 0% for parous women induced at 5 cm or greater to 50% for nulliparous women at 0 cm.

CONCLUSION:

Elective delivery before 39 weeks' gestation is associated with significant neonatal morbidity. Initial cervical dilatation is highly correlated with cesarean delivery among women undergoing induction of labor in both nulliparous and parous women. Elective delivery before 39 completed weeks' gestation is inappropriate. Women contemplating elective induction at or beyond 39 weeks' gestation with an unfavorable cervix should be counseled regarding an increased rate of cesarean delivery.

PMID:
19110225
DOI:
10.1016/j.ajog.2008.08.068
[Indexed for MEDLINE]

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