Maternal obesity and labour complications following induction of labour in prolonged pregnancy

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Arrowsmith, S ; Wray, S ; Quenby, S (2011)

Objective: To investigate the effect of maternal obesity on mode of delivery following induction of labour (IOL) for prolonged pregnancy and subsequent intrapartum and neonatal complications. \ud Design: Retrospective (historical) cohort study. \ud Setting: Liverpool Women's Hospital NHS Foundation Trust, UK. \ud Population: A total of 29,224 women with singleton pregnancies between 2004 and 2008 of whom 3076 had a prolonged pregnancy (defined as >= 290 days or 41(+3) weeks of gestation) and received IOL. \ud \ud Methods: Kruskal-Wallis test, chi-square test and multivariable logistic regression. \ud \ud Main outcome measures: Mode of delivery and risk of delivery and neonatal complications in obese verses non-obese women following IOL. \ud \ud Results: Obese women had a significantly higher rate of IOL ending in caesarean section compared with women of normal weight following IOL (38.7% versus 23.8% primiparous; 9.9% versus 7.9% multiparous women, respectively); however, length of labour, incidence of postpartum haemorrhage and third-degree tear, rate of low cord blood pH, low Apgar scores and shoulder dystocia were similar in all body mass index categories. Complications included a higher incidence of fetal macrosomia and second-degree, but not third-degree, tear in primiparous women. \ud \ud Conclusions: Higher maternal body mass index at booking is associated with an increased risk of prolonged pregnancy and increased rate of IOL. Despite this, more than 60% of obese primiparous and 90% of multiparous women with prolonged pregnancies who were induced achieved vaginal delivery and labour complications in the obese women with prolonged pregnancies were largely comparable to those of normal weight women with prolonged pregnancies. Our data suggest that IOL for prolonged pregnancy in obese women is a reasonable and safe management option.
  • References (26)
    26 references, page 1 of 3

    1 World Health Organisation. Fact sheet: obesity and overweight. [www.who.int/mediacentre/factsheets/fs311/en/index.html]. Last accessed 30 October 2009.

    2 Ramsay JE, Greer I, Sattar N. ABC of obesity. Obesity and reproduction. BMJ 2006;333:1159-62.

    3 Heslehurst N, Simpson H, Ells LJ, Rankin J, Wilkinson J, Lang R, et al. The impact of maternal BMI status on pregnancy outcomes with immediate short-term obstetric resource implications: a meta-analysis. Obes Rev 2008;9:635-83.

    4 Heslehurst N, Rankin J, Wilkinson JR, Summerbell CD. A nationally representative study of maternal obesity in England, UK: trends in incidence and demographic inequalities in 619 323 births, 1989- 2007. Int J Obes (Lond) 2010;34:420-8.

    5 Kanagalingam MG, Forouhi NG, Greer IA, Sattar N. Changes in booking body mass index over a decade: retrospective analysis from a Glasgow Maternity Hospital. BJOG 2005;112:1431-3.

    6 Cedergren MI. Maternal morbid obesity and the risk of adverse pregnancy outcome. Obstet Gynecol 2004;103:219-24.

    7 Zhang J, Bricker L, Wray S, Quenby S. Poor uterine contractility in obese women. BJOG 2007;114:343-8.

    8 Johnson JW, Longmate JA, Frentzen B. Excessive maternal weight and pregnancy outcome. Am J Obstet Gynecol 1992;167:353-70; discussion 70-2.

    9 Nohr EA, Bech BH, Davies MJ, Frydenberg M, Henriksen TB, Olsen J. Prepregnancy obesity and fetal death: a study within the Danish National Birth Cohort. Obstet Gynecol 2005;106:250-9.

    10 Denison FC, Price J, Graham C, Wild S, Liston WA. Maternal obesity, length of gestation, risk of postdates pregnancy and spontaneous onset of labour at term. BJOG 2008;115:720-5.

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