Elective Induction of Labor at 39 Weeks of Gestation: A Prospective Randomized Trial

Amano, Kazutaka; Saito, Kazuru; Shoda, Takashi; Tani, Akihiro; Yoshihara, Hajime; Nishijima, Masahiro

doi:10.1111/j.1447-0756.1999.tb01119.x

Cited by 38 publications

(32 citation statements)

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“…Few randomized trials have been conducted, all were small, [25][26][27][28][29][30] and most took place 20 or more years ago. [26][27][28]30 Given this lack of data, it is notable that in our cohort, the greatest decline in elective induction was seen for deliveries at 40 weeks-a group in which elective induction is not thought to be harmful.…”

Section: Trends In Labor Induction 909mentioning

confidence: 99%

Trends in Elective Labor Induction for Six United States Health Plans, 2001–2007

Dublin

Johnson

Walker

et al. 2014

Journal of Women's Health

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Background: To describe trends in labor induction, including elective induction, from 2001 to 2007 for six U.S. health plans and to examine the validity of induction measures derived from birth certificate and health plan data.Methods: This retrospective cohort study included 339,123 deliveries at 35 weeks' gestation or greater. Linked health plan and birth certificate data provided information about induction, maternal medical conditions, and pregnancy complications. Induction was defined from diagnosis and procedure codes and birth certificate data and considered elective if no accepted indication was coded. We calculated induction prevalence across health plans and years. At four health plans, we reviewed medical records to validate induction measures. Results: Based on electronic data, induction prevalence rose from 28% in 2001 to 32% in 2005, then declined to 29% in 2007. The trend was driven by changes in the prevalence of apparent elective induction, which rose from 11% in 2001 to 14% in 2005 and then declined to 11% in 2007. The trend was similar for subgroups by parity and gestational age. Elective induction prevalence varied considerably across plans. On review of 86 records, 36% of apparent elective inductions identified from electronic data were confirmed as valid. Conclusions: Elective induction appeared to peak in 2005 and then decline. The decrease may reflect quality improvement initiatives or changes in policies, patient or provider attitudes, or coding practices. The low validation rate for measures of elective induction defined from electronic data has important implications for existing quality measures and for research studies examining induction's outcomes.

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Section: Trends In Labor Induction 909mentioning

confidence: 99%

Trends in Elective Labor Induction for Six United States Health Plans, 2001–2007

Dublin

Johnson

Walker

et al. 2014

Journal of Women's Health

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“…However, these studies all focused on women with already established problems such as oligohydramnios (52), macrosomia (53), and insulin dependent diabetes (54). In addition, several often-cited randomized clinical studies that did not find benefit with labor induction either took place before the availability of prostaglandin cervical ripening protocols or were not sufficiently powered to fully evaluate the full spectrum of birth outcomes (55)(56)(57)(58). The prospective trials that have demonstrated improvement in birth outcomes related to labor induction were studies of women with mild-moderate risk profiles where labor induction was employed before the development of a recognized complication (59)(60)(61).…”

Section: Commentmentioning

confidence: 99%

The Impact of the Active Management of Risk in Pregnancy at Term on Birth Outcomes: A Randomized Clinical Trial

Nicholson

Parry

Caughey

et al. 2008

Obstetrical &Amp; Gynecological Survey

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Objective-To compare birth outcomes resulting from the active management of risk in pregnancy at term (AMOR-IPAT) to those resulting from standard management.Methods-Randomized clinical trial with 270 women of mixed parity. AMOR-IPAT used preventive labor induction to ensure delivery before the end of an estimated optimal time of delivery. Rates of four adverse obstetric events, and two composite measures, were used to evaluate birth outcomes.Results-The AMOR-IPAT-exposed group had a similar cesarean delivery rate (10.3% vs. 14.9%, p=0.25), but a lower NICU admission rate (1.5% vs. 6.7%, p = 0.03), a higher uncomplicated vaginal birth rate (73.5% vs. 62.8%, p=0.046), and a lower mean Adverse Outcome Index score (1.4 vs. 8.6, p=0.03).Conclusion-AMOR-IPAT exposure improved the pattern of birth outcomes. Larger randomized clinical trials are needed to further explore the impact of AMOR-IPAT on birth outcomes and to determine the best methods of preventive labor induction.

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“…21 The few trials of induction that did not involve women with complications [22][23][24][25] were relatively small (a total of 1377 women in four trials), date from the 1970s, and may not be applicable to modern obstetrical practice. Trials of induction of labor in women of advanced maternal age are lacking.…”

mentioning

confidence: 99%

Randomized Trial of Labor Induction in Women 35 Years of Age or Older

Walker

Bugg

Macpherson

et al. 2016

Obstetrical &Amp; Gynecological Survey

116

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.ukThe new england journal of medicine n engl j med 374;9 nejm.org

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Elective Induction of Labor at 39 Weeks of Gestation: A Prospective Randomized Trial

Abstract: Active management of labor at 39 weeks could be made as safely as expectant management with modified biophysical profile monitoring.

Cited by 38 publications

References 4 publications

Trends in Elective Labor Induction for Six United States Health Plans, 2001–2007

Trends in Elective Labor Induction for Six United States Health Plans, 2001–2007

The Impact of the Active Management of Risk in Pregnancy at Term on Birth Outcomes: A Randomized Clinical Trial

Randomized Trial of Labor Induction in Women 35 Years of Age or Older

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