Asphyxia, Neurologic Morbidity, and Perinatal Mortality in Early-Term and Postterm Birth

Seikku, Laura; Gissler, Mika; Andersson, Sture; Rahkonen, Petri; Stefanović, Vedran; Tikkanen, Minna; Paavonen, Jorma; Rahkonen, Leena

doi:10.1542/peds.2015-3334

Cited by 64 publications

(79 citation statements)

References 36 publications

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“…Some studies assessed more than one outcome and are included in several tables. The studies were carried out in Europe, the USA, Australia, Canada, Hong Kong, Bangladesh and Japan . Thirty‐six studies were population‐based studies, three were national multicenter studies and three were single‐center studies .…”

Section: Resultsmentioning

confidence: 99%

“…The studies were carried out in Europe, the USA, Australia, Canada, Hong Kong, Bangladesh and Japan . Thirty‐six studies were population‐based studies, three were national multicenter studies and three were single‐center studies . All the included studies were observational: 41 studies were cohort studies and one was a case‐control study .…”

Section: Resultsmentioning

confidence: 99%

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Long‐term cognition and behavior in children born at early term gestation: A systematic review

Nielsen

Pedersen

Milidou

et al. 2019

Acta Obstet Gynecol Scand

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Introduction Recent recommendations characterize deliveries at 37+0 weeks through 38+6 weeks as early term. We aimed to review the literature systematically on long‐term cognition, school performance and behavior in children born early term (37+0 to 38+6 weeks) compared with full term (39+0 to 40+6 weeks). Material and methods The review was performed according to the PRISMA Statement. The final literature search was performed on 31 January 2019. We located studies in PubMed, Embase, CINAHL and Cochrane Library. Eligible studies were randomized controlled trials, cohort studies and case‐control studies, with outcome assessment performed at 2‐19 years. We collected information using a structured data form and evaluated study quality using the Newcastle‐Ottawa Scale (NOS). Results We included 42 observational studies published between 2006 and 2018. No restriction on year of publication was made. The mean NOS score was 5.8 with a range from 3 to 9. Compared with children born full term, children born early term had a lower intelligence score in early adulthood and up to some 30% increased risk of attention‐deficit/hyperactivity disorder. Furthermore, we found some 10%‐40% increased risk of cognitive problems, some 25% higher risk of language impairments and another 8%‐75% with poorer overall school performance. No meta‐analysis was conducted due to heterogeneity in the outcome measures. Only 10 studies presented subgroup analyses in spontaneous deliveries or adjusted for type of labor onset/induction. Conclusions Children born early term are at increased risk of cognitive deficits, poorer school performance and behavioral problems compared with children born full term.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Long‐term cognition and behavior in children born at early term gestation: A systematic review

Nielsen

Pedersen

Milidou

et al. 2019

Acta Obstet Gynecol Scand

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show abstract

“…Such a practice engenders considerable maternal anxiety, increases obstetric intervention and has the potential for actually doing harm. Indeed, there is evidence that children born at early‐term gestations not only have higher rates of neonatal complications but are also at risk for longer‐term adverse neurodevelopmental sequelae.…”

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confidence: 99%

Using cerebroplacental ratio in non‐SGA fetuses to predict adverse perinatal outcome: caution is required

Kumar

Figueras²,

Ganzevoort

et al. 2018

Ultrasound in Obstet & Gyne

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“…(1) The risk of adverse neonatal outcomes varies across the term period, with infants born early-term (i.e., 37 or 38 weeks of gestation) at increased risk of mortality, respiratory distress syndrome, admission to the neonatal intensive care unit (NICU), and long-term neurological morbidity. (2–5) These trends, as well as increases in maternal death and severe morbidity(6), have led to increased clinical and policy focus on limiting elective early-term inductions and cesareans as one potential way to improve maternal and neonatal health outcomes.…”

Section: Introductionmentioning

confidence: 99%

Oregon's Hard-Stop Policy Limiting Elective Early-Term Deliveries

Snowden

Muoto

Darney

et al. 2016

Obstetrics &Amp; Gynecology

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Objectives To evaluate the association of Oregon’s hard-stop policy limiting early elective deliveries (before 39 weeks of gestation) and the rate of elective early-term inductions and cesarean deliveries and associated maternal–neonatal outcomes. Methods This was a population-based retrospective cohort study of Oregon births between 2008 and 2013, using vital statistics data and multivariable logistic regression models. Our exposure was the Oregon hard-stop policy, defined as the time periods pre-policy (2008 – 2010) and post-policy (2012 – 2013). We included all term or postterm, cephalic, nonanomalous, singleton deliveries (N= 181,034 births). Our primary outcomes were induction of labor and cesarean delivery at 37 or 38 weeks of gestation without a documented indication on the birth certificate (i.e., elective early term delivery). Secondary outcomes included neonatal intensive care unit admission, stillbirth, macrosomia, chorioamnionitis, and neonatal death. Results The rate of elective inductions before 39 weeks declined from 4.0% in the prepolicy period to 2.5% during the postpolicy period (P<0.001); a similar decline was observed for elective early term cesareans (from 3.4% to 2.1%; P<0.001). There was no change in neonatal intensive care unit admission, stillbirth, or assisted ventilation pre-policy and post-policy, but chorioamnionitis did increase (from 1.2% to 2.2%, P<0.001; adjusted odds ratio, 1.94, 95% confidence interval, 1.80 – 2.09). Conclusions Oregon’s statewide policy to limit elective early-term delivery was associated with a reduction in elective early-term deliveries, but no improvement in maternal or neonatal outcomes.

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Asphyxia, Neurologic Morbidity, and Perinatal Mortality in Early-Term and Postterm Birth

Abstract: BACKGROUND AND OBJECTIVES: Neonatal outcomes vary by gestational age. We evaluated the association of early-term, full-term, and postterm birth with asphyxia, neurologic morbidity, and perinatal mortality.

Cited by 64 publications

References 36 publications

Long‐term cognition and behavior in children born at early term gestation: A systematic review

Long‐term cognition and behavior in children born at early term gestation: A systematic review

Using cerebroplacental ratio in non‐SGA fetuses to predict adverse perinatal outcome: caution is required

Oregon's Hard-Stop Policy Limiting Elective Early-Term Deliveries

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