Fetal macrosomia and pregnancy outcomes

Ju, Hong, Chadha, Yogesh, Donovan, Tim and O'Rourke, Peter (2009) Fetal macrosomia and pregnancy outcomes. Australian and New Zealand Journal of Obstetrics and Gynaecology, 49 5: 504-509. doi:10.1111/j.1479-828X.2009.01052.x


Author Ju, Hong
Chadha, Yogesh
Donovan, Tim
O'Rourke, Peter
Title Fetal macrosomia and pregnancy outcomes
Journal name Australian and New Zealand Journal of Obstetrics and Gynaecology   Check publisher's open access policy
ISSN 0004-8666
1479-828X
Publication date 2009-10-01
Sub-type Article (original research)
DOI 10.1111/j.1479-828X.2009.01052.x
Open Access Status Not Open Access
Volume 49
Issue 5
Start page 504
End page 509
Total pages 6
Place of publication Richmond, VIC, Australia
Publisher Wiley-Blackwell
Language eng
Formatted abstract
Background:  Pregnancies with a macrosomic fetus comprise a subgroup of high-risk pregnancies. There is uncertainty in the clinical management and outcomes of such pregnancies.

Aim:  We sought to examine clinical management and maternal and fetal outcomes in pregnancies with macrosomic infants at Royal Brisbane and Women's Hospital (RBWH).

Methods:  Data from 276 macrosomic births (weighing ≥ 4500 g) and 294 controls (weighing 3250–3750 g) delivered during 2002–2004 at RBWH were collected from the hospital database. Univariate and logistic regression analyses were performed for maternal risk factors and maternal and neonatal outcomes that were associated with fetal macrosomia.

Results:  Macrosomia was more than two times likely in women with body mass index (BMI) of > 30 kg/m2 (odds ratio (OR) 2.41, 95% confidence interval (CI) 1.26–4.61) and in male infant sex (OR 2.05, 95% CI 1.35–3.12), and four times more likely in gestation of > 40 weeks (OR 3.93, 95% CI 1.99–7.74). Maternal smoking reduced the risk of fetal macrosomia (OR 0.27, 95% CI 0.14–0.51).

Macrosomia was associated with nearly two times higher risk of emergency caesarean section (OR 1.75, 95% CI 1.02–2.97) and maternal hospital stay of > 3 days (OR 1.66, 95% CI 1.11–2.50), and four times higher risk of shoulder dystocia (OR 4.08, 95% CI 1.62–10.29). Macrosomic infants were twice as likely to have resuscitation (OR 2.21, 95% CI 1.46–3.34) and intensive care nursery admission (OR 1.89, 95% CI 1.03–3.46).

Conclusion: 
Macrosomia was associated with an increased risk of adverse maternal and neonatal health outcomes. Optimal management strategies of macrosomic pregnancies need evaluation.
Keyword Clinical management
Fetal macrosomia
Pregnancy complications
Pregnancy outcomes
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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