Optimal Timing for Term Delivery of Twin Pregnancies: A Population-Based Study

Vilchez, Gustavo; Dai, Jing; Hoyos, Luis R.; Chelliah, Anushka; Bahado‐Singh, Ray O.; Sokol, Robert J.

doi:10.1055/s-0034-1396693

Cited by 7 publications

(8 citation statements)

References 18 publications

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“…Data from all twin births that took place in the United States between 2007 and 2010 suggest that neonatal complications occurred less frequently in twins born between 37 and 38 weeks of gestation than in those born between 38 and 39 weeks [33]. Similar results were obtained in the analysis of more than 760 twin births in Canada [34].…”

Section: A Twin Pregnancysupporting

confidence: 61%

Polish Gynecological Society Recommendations for Labor Induction

Bomba‐Opoń¹,

Drews²,

Huras³

et al. 2017

Ginekol Pol

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Section: A Twin Pregnancysupporting

confidence: 61%

Polish Gynecological Society Recommendations for Labor Induction

Bomba‐Opoń¹,

Drews²,

Huras³

et al. 2017

Ginekol Pol

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“…If we are to consider the estimates that appreciate monochorionic twins as representing about a fourth (25%) of twin pregnancies, 12 our findings might be appreciated as biased towards and more representative for dichorionic pregnancies than monochorionic pregnancies. The increased risk of complications and iatrogenic preterm delivery in monochorionic twins is well known and documented in the research literature and practice guidelines.…”

Section: Strengths and Limitationsmentioning

confidence: 91%

“…7 Although several large epidemiologic studies were performed to determine an optimal delivery time for twin pregnancies, the results are still controversial, and a consensus has not been reached. 4,[7][8][9][10][11][12] Furthermore, most of these studies, using individual twins rather than twin pairs as the unit to calculate the mortality rate, may underestimate the risk of poor outcomes in twin pregnancies. Nonetheless, the optimal duration for pregnancy appears to be shorter in twins compared with singleton pregnancies.…”

Section: College Of Obstetricians and Gynaecologists And The Society Formentioning

confidence: 99%

“…14 Several other large epidemiologic studies have shown lowest perinatal mortality rates for twins at either 37 or 38 weeks of gestation, suggesting the optimal time of delivery, hence full term in twins, either one of the gestational ages above. 4,[7][8][9][10][11][12]22 For instance, a study of 88 936 infants from multiple gestations (96% twins) from Japan found that the incidence of stillbirth and early neonatal death gradually declined until 37-38 weeks of gestation and subsequently increased. 8 Another Japanese study showed that the perinatal mortality rate decreased with a gestational age up to 38 to 39 weeks and increased thereafter.…”

Section: Comparison With Other Studiesmentioning

confidence: 99%

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Optimal delivery timing for twin pregnancies: A population‐based retrospective cohort study

Ding

Vinturache

et al. 2021

Int. J. Clin. Pract.

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The incidence of twin pregnancies has risen worldwide mainly because of the increase in the rates of assisted conception amongst other demographic and biologic factors. In the United States, there was an estimated increase of 76% between 1980 and 2009, from 18.9 to 33.3 per 1000 births. 1 Despite twins representing only 2 to 3% of live births, they account for 10 to 15% of the adverse neonatal outcomes. 2 Twin pregnancies, in comparison with singletons, are at an increased risk of complications including foetal anomalies, preterm birth, abnormal and discordant foetal growth, cerebral palsy, and perinatal and infant mortality. 3

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“…Although there have been many studies performed to determine the optimal delivery time for twin pregnancy, the results are controversial and unsatisfying [ 12 13 ]. In this study, we analyzed the neonatal outcome according to gestational age at delivery in uncomplicated twin pregnancies based on the Korean data in order to determine the optimal time for delivery in uncomplicated monochorionic and dichorionic twin pregnancies.…”

Section: Introductionmentioning

confidence: 99%

Gestational age at delivery and neonatal outcome in uncomplicated twin pregnancies: what is the optimal gestational age for delivery according to chorionicity?

et al. 2016

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ObjectiveTo investigate the neonatal outcome according to the gestational age at delivery and to determine the optimal timing for delivery in uncomplicated monochorionic and dichorionic twin pregnancies.MethodsThis is a retrospective cohort study of women with uncomplicated twin pregnancies delivered at or beyond 35 weeks of gestation from 1995 to 2013. The primary outcome was neonatal composite morbidity, which was defined as when either one or both twins have one or more of the followings: fetal death after 35 weeks gestation, admission to neonatal intensive care unit, mechanical ventilator requirement, respiratory distress syndrome and neonatal death. To determine the optimal gestational age for delivery according to chorionicity, we compared the neonatal composite morbidity rate between women who delivered and women who remained undelivered at each gestational week in both monochorionic and dichorionic twin pregnancies.ResultsA total of 697 twin pregnancies were included (171 monochorionic and 526 dichorionic twins). The neonatal composite morbidity rate significantly decreased with advancing gestational age at delivery and its nadir was observed at 38 and ≥39 weeks of gestation in monochorionic and dichorionic twins, respectively. However, the composite morbidity rate did not differ between women who delivered and women who remained undelivered ≥36 and ≥37 weeks in monochorionic and dichorionic twins, respectively.ConclusionOur data suggest that the optimal gestational age for delivery was at ≥36 and ≥37 weeks in uncomplicated monochorionic and dichorionic twin pregnancies, respectively.

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Optimal Timing for Term Delivery of Twin Pregnancies: A Population-Based Study

Abstract: Twins are at higher risk of suboptimal neonatal outcomes than singletons, but do better when delivered at early term rather than term or late term.

Cited by 7 publications

References 18 publications

Polish Gynecological Society Recommendations for Labor Induction

Polish Gynecological Society Recommendations for Labor Induction

Optimal delivery timing for twin pregnancies: A population‐based retrospective cohort study

Gestational age at delivery and neonatal outcome in uncomplicated twin pregnancies: what is the optimal gestational age for delivery according to chorionicity?

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