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Risk Factors for Cesarean Delivery after Induction of Labor in Nulliparous Women with an Unfavorable Cervix at or beyond 41 Weeks of Gestation

Authors
 Son G.H.  ;  Kim J.H.  ;  Kwon J.Y.  ;  Kim Y.H.  ;  Park Y.W. 
Citation
 GYNECOLOGIC AND OBSTETRIC INVESTIGATION, Vol.76(4) : 254-259, 2013 
Journal Title
GYNECOLOGIC AND OBSTETRIC INVESTIGATION
ISSN
 0378-7346 
Issue Date
2013
MeSH
Adult ; Birth Weight ; Body Height ; Cervix Uteri ; Cesarean Section* ; Cohort Studies ; Female ; Fetal Membranes, Premature Rupture ; Gestational Age* ; Humans ; Infant, Newborn ; Labor Stage, First* ; Labor, Induced* ; Logistic Models ; Parity ; Pregnancy ; Pregnancy, Prolonged/prevention & control ; Pregnancy, Prolonged/therapy ; Retrospective Studies ; Risk Factors
Keywords
Cesarean section ; Labor induction ; Nulliparity ; Prolonged pregnancy
Abstract
AIMS:
To investigate risk factors for cesarean section (CS) following labor induction in nulliparas with an unfavorable cervix at or beyond 41 weeks of gestation.
METHODS:
In this retrospective cohort study, a total of 276 nulliparas with an unfavorable cervix (Bishop score ≤6) who underwent labor induction for prolonged pregnancies were included out of a total of 646 patients who delivered ≥41 weeks (2002-2011).
RESULTS:
82 (29.7%) patients of the 276 delivered by CS. The patients who underwent CS had less cervical dilatation and a lower Bishop score on admission than those patients who delivered vaginally (0.76 ± 0.47 vs. 0.92 ± 0.58 cm, p = 0.03 and 1.16 ± 1.25 vs. 1.51 ± 1.34, p = 0.04, respectively). Neonatal birth weight and biparietal diameter (BPD) were significantly smaller in the vaginal delivery group (3,414.93 ± 361.37 vs. 3,534.81 ± 383.05 g, p = 0.01 and 9.43 ± 0.35 vs. 9.65 ± 0.42 cm, p < 0.01). After multiple logistic regression analysis, maternal height, BPD, and early rupture of membranes (ROM) were independently related with CS. Early ROM was defined as spontaneous ROM that occurred before the onset of the active phase of labor.
CONCLUSION:
Maternal height, BPD, and early ROM were risk factors for CS following labor induction in nulliparas at or beyond 41 weeks of gestation.
Full Text
http://www.karger.com/Article/FullText/350798
DOI
10.1159/000350798
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Obstetrics and Gynecology (산부인과학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Ja Young(권자영) ORCID logo https://orcid.org/0000-0003-3009-6325
Kim, Young Han(김영한) ORCID logo https://orcid.org/0000-0003-0645-6028
Park, Yong Won(박용원)
Son, Ga Hyun(손가현)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/89065
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