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Effects of maternal obesity on the success of assisted vaginal delivery in Chinese women.
BMC Pregnancy Childbirth 2018; 18(1):509BP

Abstract

BACKGROUND

We examined the influence of pre-pregnancy body weight on the rates of attempted and successfully assisted-vaginal delivery.

METHODS

We used 2008-2016 inpatient records including 3408 women who had singleton gestations and needed operative delivery assistance to conduct a retrospective cohort study. Patients were categorized based on pre-pregnancy BMI (normal weight = 18.5 to less than 25 or obese = 30 or greater). We used logistic regression to estimate odds ratios and 95% confidence intervals of attempted and successful forceps or vacuum-assisted vaginal delivery by body weight adjusted for marital status, age, gestational age, induction of labor, episiotomy, diabetes, and birth weight.

RESULTS

The proportion of women with attempted either vacuum or forceps was lower among women who were obese pre-pregnancy compared to women who were normal weight. Women with excessive gestational weight gain, large for gestational age neonates, and diabetes were less likely to have a vacuum-assisted or forceps-assisted vaginal delivery attempted. Conversely, women who received labor augmentation or induction, used epidural anesthesia, gained inadequate weight, and delivered a small for gestational age infant were more likely to have a vacuum-assisted or forceps-assisted vaginal delivery attempted. Compared to normal weight women, obese women who received forceps-assisted vaginal delivery were more likely to have a successful vaginal delivery.

CONCLUSION

Women who had normal weight had higher likelihood to attempt assisted vaginal delivery compared to women who had pre-pregnancy obesity. However, when assisted vaginal delivery was attempted, success rates were higher when forceps-assisted delivery was used compared to vacuum-assisted delivery.

Authors+Show Affiliations

Department of Gynaecology and Obstetrics, Liaocheng People's Hospital, Liaocheng, 252000, Shandong Province, People's Republic of China.Department of Gynaecology and Obstetrics, Liaocheng People's Hospital, Liaocheng, 252000, Shandong Province, People's Republic of China. yuejiayiwww@126.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30591024

Citation

Wu, Hongying, and Jiayi Yue. "Effects of Maternal Obesity On the Success of Assisted Vaginal Delivery in Chinese Women." BMC Pregnancy and Childbirth, vol. 18, no. 1, 2018, p. 509.
Wu H, Yue J. Effects of maternal obesity on the success of assisted vaginal delivery in Chinese women. BMC Pregnancy Childbirth. 2018;18(1):509.
Wu, H., & Yue, J. (2018). Effects of maternal obesity on the success of assisted vaginal delivery in Chinese women. BMC Pregnancy and Childbirth, 18(1), p. 509. doi:10.1186/s12884-018-2151-0.
Wu H, Yue J. Effects of Maternal Obesity On the Success of Assisted Vaginal Delivery in Chinese Women. BMC Pregnancy Childbirth. 2018 Dec 27;18(1):509. PubMed PMID: 30591024.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of maternal obesity on the success of assisted vaginal delivery in Chinese women. AU - Wu,Hongying, AU - Yue,Jiayi, Y1 - 2018/12/27/ PY - 2018/07/10/received PY - 2018/12/17/accepted PY - 2018/12/29/entrez PY - 2018/12/29/pubmed PY - 2019/4/11/medline KW - Assisted-vaginal delivery KW - Forceps KW - Maternal obesity KW - Vacuum SP - 509 EP - 509 JF - BMC pregnancy and childbirth JO - BMC Pregnancy Childbirth VL - 18 IS - 1 N2 - BACKGROUND: We examined the influence of pre-pregnancy body weight on the rates of attempted and successfully assisted-vaginal delivery. METHODS: We used 2008-2016 inpatient records including 3408 women who had singleton gestations and needed operative delivery assistance to conduct a retrospective cohort study. Patients were categorized based on pre-pregnancy BMI (normal weight = 18.5 to less than 25 or obese = 30 or greater). We used logistic regression to estimate odds ratios and 95% confidence intervals of attempted and successful forceps or vacuum-assisted vaginal delivery by body weight adjusted for marital status, age, gestational age, induction of labor, episiotomy, diabetes, and birth weight. RESULTS: The proportion of women with attempted either vacuum or forceps was lower among women who were obese pre-pregnancy compared to women who were normal weight. Women with excessive gestational weight gain, large for gestational age neonates, and diabetes were less likely to have a vacuum-assisted or forceps-assisted vaginal delivery attempted. Conversely, women who received labor augmentation or induction, used epidural anesthesia, gained inadequate weight, and delivered a small for gestational age infant were more likely to have a vacuum-assisted or forceps-assisted vaginal delivery attempted. Compared to normal weight women, obese women who received forceps-assisted vaginal delivery were more likely to have a successful vaginal delivery. CONCLUSION: Women who had normal weight had higher likelihood to attempt assisted vaginal delivery compared to women who had pre-pregnancy obesity. However, when assisted vaginal delivery was attempted, success rates were higher when forceps-assisted delivery was used compared to vacuum-assisted delivery. SN - 1471-2393 UR - https://www.unboundmedicine.com/medline/citation/30591024/Effects_of_maternal_obesity_on_the_success_of_assisted_vaginal_delivery_in_Chinese_women_ L2 - https://bmcpregnancychildbirth.biomedcentral.com/articles/10.1186/s12884-018-2151-0 DB - PRIME DP - Unbound Medicine ER -