The occurrence of breech presentation in Norway 1967-1994

Albrechtsen, Susanne; Rasmussen, Svein; Dalaker, Knut; Irgens, LorentzM.

doi:10.1080/j.1600-0412.1998.770409.x

Cited by 33 publications

(41 citation statements)

References 9 publications

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“…Changes in the notification and registration of breech delivery in the birth registry could account for this, together with demographic changes in terms of increasing proportion of births with low birth order, caesarean section, and high maternal age. 4 The parental cohort includes only survivors and those reproducing, while the offspring cohort is complete. Breech delivery was associated with increased mortality up to the age of 18.…”

Section: Congenital Anomaliesmentioning

confidence: 99%

“…[1][2][3] In most studies, the prevalence of breech delivery ranges from 3% to 4%. [4][5][6][7] The aetiology of breech delivery-that is, the causes of failure of spontaneous cephalic version-is not clear, but several factors are associated with an increased risk of breech delivery, such as first baby, older mother, and low gestational age and low birth weight. 4 6-8 Mechanical factors, such as uterine malformations, pelvic tumours, site of placental attachment, and low volume of amniotic fluid, also increase the risk of breech delivery.…”

Section: Introductionmentioning

confidence: 99%

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Maternal and paternal contribution to intergenerational recurrence of breech delivery: population based cohort study

Nordtveit

Klungsøyr

Albrechtsen

et al. 2008

BMJ

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Objective To investigate intergenerational recurrence of breech delivery, with a hypothesis that both women and men delivered in breech presentation contribute to increased risk of breech delivery in their offspring. Design Population based cohort study for two generations. Setting Data from the medical birth registry of Norway, based on all births in Norway 1967-2004 (2.2 million births). Participants Generational data were provided through linkage by national identification numbers, forming 451 393 mother-offspring units and 295 253 fatheroffspring units. We included units where both parents and offspring were singletons and offspring were first born, forming 232 704 mother-offspring units and 154 851 father-offspring units for our analyses. Main outcome measure Breech delivery in the second generation. Results Men and women who themselves were delivered in breech presentation had more than twice the risk of breech delivery in their own first pregnancies compared with men and women who had been cephalic presentations (odds ratios 2.2, 95% confidence interval 1.8 to 2.7, and 2.2, 1.9 to 2.5, for men and women, respectively). The strongest risks of recurrence were found for vaginally delivered offspring and were equally strong for men and women.

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Section: Congenital Anomaliesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Maternal and paternal contribution to intergenerational recurrence of breech delivery: population based cohort study

Nordtveit

Klungsøyr

Albrechtsen

et al. 2008

BMJ

Self Cite

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“…Breech presentation at term occurs in two to three per cent of all singleton term deliveries [1, 2]. The majority of breech pregnancies are delivered nowadays by cesarean section [3], as planned vaginal breech delivery is controversial.…”

Section: Introductionmentioning

confidence: 99%

Risk factors associated with adverse perinatal outcome in planned vaginal breech labors at term: a retrospective population-based case-control study

Macharey

Gissler

Ulander

et al. 2017

BMC Pregnancy Childbirth

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BackgroundVaginal breech delivery is associated with adverse perinatal outcome. The aim of this study was to identify factors associated with adverse perinatal outcome in term breech pregnancies, and to provide clinicians an aid in selecting women for a trial of vaginal labor with the fetus in breech position.MethodsWe conducted a retrospective, nationwide, Finnish population-based case-control study. All planned singleton vaginal deliveries at term with the fetus in breech position between the years 2005 and 2014 were analyzed. The study’s end point was a composite set of adverse perinatal outcomes. All infants with an adverse outcome were compared to the infants with normal outcomes. A multivariate logistic regression model was used to analyze the data.ResultsAn adverse perinatal outcome was recorded for 73 (1.5%) infants. According to the study results fetal growth restriction (adjusted odds ratio, 2.94; 95% CI, 1.30–6.67), oligohydramnios (adjusted odds ratio, 2.94; 95% CI, 1.15–7.18), a history of cesarean section (adjusted odds ratio, 2.94; 95% CI, 1.28–6.77, gestational diabetes (adjusted odds ratio, 2.89; 95% CI, 1.54–5.40), epidural anesthesia (adjusted odds ratio, 2.20; 95% CI, 1.29–3.75) and nulliparity (adjusted odds ratio, 1.84; 95% CI, 1.10–3.08) were associated with adverse perinatal outcome.ConclusionsAdverse perinatal outcome in planned vaginal breech labor at term is associated with fetal growth restriction, oligohydramnios, previous cesarean delivery, gestational diabetes, nulliparity and epidural anesthesia.

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“…20,22 In a Swedish national review from 1991-2001, 2.7% of all infants were born in breech presentation. 20,22 In a Swedish national review from 1991-2001, 2.7% of all infants were born in breech presentation.…”

Section: Breech Presentationmentioning

confidence: 99%

“…[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. The study period, 1987-1993, included that of the former study.…”

Section: Large Cohort Registry-studiesmentioning

confidence: 99%

Term Breech Delivery

Herbst

Källén

2005

Fet. Matern. Med. Rev.

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In October 2000, Hannah et al published a randomised controlled trial comparing perinatal and maternal outcome between planned vaginal and planned caesarean deliveries of term breech pregnancies. The study was closed after an interim analysis, showing a reduced perinatal morbidity and mortality with planned caesarean section. The result was not unexpected, although a trial like this had been called for over many years to resolve the issue. Many cohort- and case-control studies, and two small randomised studies had been performed since 1959, when Wright reported a reduced perinatal mortality and morbidity with CS. A few large registry studies had shown a better perinatal outcome with caesarean delivery, whereas smaller studies often showed no statistically significant difference in outcome, often with the conclusion that vaginal delivery (VD) is safe.

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The occurrence of breech presentation in Norway 1967-1994

Cited by 33 publications

References 9 publications

Maternal and paternal contribution to intergenerational recurrence of breech delivery: population based cohort study

Maternal and paternal contribution to intergenerational recurrence of breech delivery: population based cohort study

Risk factors associated with adverse perinatal outcome in planned vaginal breech labors at term: a retrospective population-based case-control study

Term Breech Delivery

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