Abstract
Purpose
To evaluate whether cesarean delivery (CD) indication, labor status, and other primary CD characteristics affect the risk for uterine rupture in subsequent deliveries.
Methods
A case–control study of women attempting trial of labor after cesarean (TOLAC) in a single, tertiary, university-affiliated medical center (2007–2016). Deliveries complicated by uterine rupture were matched to successful vaginal birth after cesarean (VBAC) deliveries in a 1:3 ratio. Indication, labor status and post-partum complications (postpartum hemorrhage and postpartum infection) at primary CD were compared between study and control group.
Results
During study period, there were 75,682 deliveries, of them, 3937 (5.2%) were TOLAC. Study group included 53 cases of uterine rupture at TOLAC and 159 women with successful VBAC. Women in study group had significantly lower rates of previous VBAC (15.1 vs. 28.9%, p = 0.047). Rate of postpartum complications at primary CD was significantly higher in women with TOLAC complicated by uterine rupture (7.5 vs. 1.9%, respectively, p = 0.042). Utilizing the multivariate logistic regression analysis, postpartum complications remained an independent risk factor for uterine rupture in the following TOLAC (aOR 4.07, 95% CI 1.14–14.58, p = 0.031).
Conclusion
Postpartum hemorrhage and infection, in primary CD, seem to be associated with increased risk for uterine rupture during subsequent TOLAC.
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LS: concept and design, data acquisition, data interpretation, manuscript editing. LH: data acquisition and interpretation, manuscript revision. AS: data acquisition and interpretation, manuscript revision. EK: data acquisition and interpretation, manuscript revision. AW: concept of design, data analysis, manuscript revision. RGB: concept and design, data acquisition, data interpretation, manuscript editing.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.
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Salman, L., Hiersch, L., Shmueli, A. et al. Complicated primary cesarean delivery increases the risk for uterine rupture at subsequent trial of labor after cesarean. Arch Gynecol Obstet 298, 273–277 (2018). https://doi.org/10.1007/s00404-018-4801-x
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DOI: https://doi.org/10.1007/s00404-018-4801-x