Obstetric and neonatal risks among extremely macrosomic babies and their mothers

Vidarsdottir, Harpa; Geirsson, Reynir Tómas; Harðardóttir, Hildur; Valdimarsdóttir, Unnur; Dagbjartsson, Atli

doi:10.1016/j.ajog.2010.12.036

Cited by 46 publications

(32 citation statements)

References 23 publications

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“…4,5,11 In the United States approximately 500,000 macrosomic infants are born every year, with 90% of their mothers being nondiabetic. 4,13,18 Maternal characteristics associated with macrosomic infants born to women without diabetes include obesity, age, excessive weight gain during pregnancy, multiparity, and advanced gestation, as well as genetic predisposition. [19][20][21] In our large cohort of women without diabetes who delivered macrosomic infants, over one-fourth were overweight, and approximately half were either obese, very obese, or extremely obese.…”

Section: Discussionmentioning

confidence: 99%

“…Regardless of the mothers' prepregnancy BMI, macrosomia increases the risk of complications during labor and delivery. 4,15,17,18 The odds of both repeat and primary cesarean delivery increases in direct relation to a woman's prepregnancy BMI. Although the incidence of vaginal deliveries decreases, complications such as shoulder dystocia, perinatal asphyxia, and birth injury exist.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Breastfeeding Initiation Among Macrosomic Infants Born to Obese Nondiabetic Mothers

Cordero

Oza-Frank

Landon

et al. 2015

Breastfeeding Medicine

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Breastfeeding Initiation Among Macrosomic Infants Born to Obese Nondiabetic Mothers

Cordero

Oza-Frank

Landon

et al. 2015

Breastfeeding Medicine

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show abstract

“…6 High offspring birthweight is the most important risk factor for shoulder dystocia. [7][8][9][10] Among other factors, prolonged labour, operative assisted vaginal delivery, a history of shoulder dystocia and induction of labour have also been associated with increased risk. 4,11,12 It has been suggested that giving birth at pregnancy week 42 or later, regarded as post-term pregnancy, may increase the risk of shoulder dystocia.…”

Section: Introductionmentioning

confidence: 99%

Pregnancy week at delivery and the risk of shoulder dystocia: a population study of 2 014 956 deliveries

Øverland

Vatten

Eskild

2013

BJOG

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Objective To study whether pregnancy week at delivery is an independent risk factor for shoulder dystocia.Design Population study.Setting Medical Birth Registry of Norway.Population All vaginal deliveries of singleton offspring in cephalic presentation in Norway during 1967 through 2009 (n = 2 014 956).Methods The incidence of shoulder dystocia was calculated according to pregnancy week at delivery. The associations of pregnancy week at delivery with shoulder dystocia were estimated as crude and adjusted odds ratios using logistic regression analyses. We repeated the analyses in pregnancies with and without maternal diabetes.Main outcome measures Shoulder dystocia at delivery.Results The overall incidence of shoulder dystocia was 0.73% (n = 14 820), and the incidence increased by increasing pregnancy week at delivery. Birthweight was strongly associated with shoulder dystocia. After adjustment for birthweight, induction of labour, use of epidural analgesia at delivery, prolonged labour, forceps-assisted and vacuum-assisted delivery, parity, period of delivery and maternal age in multivariable analyses, the adjusted odds ratios for shoulder dystocia were 1.77 (1.42-2.20) for deliveries at 32-35 weeks of gestation, and 0.84 (0.79-0.88) at 42-43 weeks of gestation, using weeks 40-41 as the reference. In pregnancies affected by diabetes (n = 11 188), the incidence of shoulder dystocia was 3.95%, and after adjustment for birthweight the adjusted odds ratio for shoulder dystocia was 2.92 (95% CI 1.54-5.52) for deliveries at weeks 32-35 of gestation, and 0.91 (95% CI 0.50-1.66) at 42-43 weeks of gestation. ConclusionThe risk of shoulder dystocia was associated with increased birthweight, diabetes, induction of labour, use of epidural analgesia at delivery, prolonged labour, forceps-assisted and vacuum-assisted delivery, parity and period of delivery but not with post-term delivery.

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“…There is a significantly increased risk of shoulder dystocia as birth weight increases [9,17]. Our study found that birth weight of more than 4,000 g had an odds ratio of 16.3.…”

Section: Discussionmentioning

confidence: 52%

Risk factors for neonatal brachial plexus paralysis

Okby

Sheiner

2012

Arch Gynecol Obstet

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In our population, shoulder dystocia, macrosomia, labor dystocia, vacuum delivery and vaginal breech deliveries were significant risk factors for neonatal brachial plexus paralysis, while maternal characteristics such as obesity and diabetes were not. Despite our growing knowledge concerning the risk factors associated with brachial plexus paralysis, unfortunately, this condition cannot be predicted or prevented.

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Obstetric and neonatal risks among extremely macrosomic babies and their mothers

Cited by 46 publications

References 23 publications

Breastfeeding Initiation Among Macrosomic Infants Born to Obese Nondiabetic Mothers

Breastfeeding Initiation Among Macrosomic Infants Born to Obese Nondiabetic Mothers

Pregnancy week at delivery and the risk of shoulder dystocia: a population study of 2 014 956 deliveries

Risk factors for neonatal brachial plexus paralysis

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