Abstract
Objective
To evaluate the maternal and neonatal morbidity outcome associated with vacuum assisted (VA) vaginal delivery at first vaginal birth following a previous cesarean delivery (CD).
Study design
This is a retrospective computerized study conducted at a single tertiary center, between 2005 and 2018. The study compared the morbidity outcome of VA vaginal delivery between two groups of parturients at their first vaginal birth; primigravid and those in second delivery with a prior cesarean. The primary outcome was the maternal adverse outcome: postpartum hemorrhage (PPH), anal sphincter injuries, retained placenta, shoulder dystocia, uterine rupture, and intensive care unit (ICU) admissions. Secondary outcome was the neonatal adverse outcome: Apgar score, NICU admission, meconium aspiration, jaundice, sepsis, birth trauma, and death. Univariate analysis was followed by a multiple logistic regression model controlling for potential confounders, adjusted odds ratios (95% confidence interval).
Results
During the study period, we identified 3695 parturients that engaged in Trial of labor after cesarean with no previous vaginal birth, among which 679 (18.4%) delivered by Vacuum (VA-VBAC). These were compared to 6544/43,083 (15.2%) primigravid delivered by Vacuum. The VA-VBAC group had higher risk of PPH (10.5% vs. 7.2%, p < 0.01), blood transfusions (5.6% vs. 3.5%, p < 0.01), retained placenta (10.2% vs. 4.7%, p < 0.01), and uterine rupture (0.4% vs. 0%, p < 0.01). The adverse neonatal outcomes were comparable among groups.
Conclusion
The VA-VBAC has a higher risk of maternal postpartum hemorrhagic complications; preventive measures should be directed to this selected group of operative vaginal deliveries.
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MR: Protocol development, data collection and management, data analysis, manuscript writing/editing. RR: Protocol development, data collection, and management, data analysis, manuscript writing/editing. BK: Data collection and management, manuscript writing/editing. AR: Protocol development, manuscript writing/editing. SG-G: Protocol development, data collection and management, data analysis, manuscript writing/editing.
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In accordance with Ministry of Health regulations, the institutional ethics committee did not require written informed consent because the data were obtained anonymously from medical records, with no direct participation of patients.
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Misgav Rottenstreich and Reut Rotem have equally contributed.
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Rottenstreich, M., Rotem, R., Katz, B. et al. Vacuum extraction delivery at first vaginal birth following cesarean: maternal and neonatal outcome. Arch Gynecol Obstet 301, 483–489 (2020). https://doi.org/10.1007/s00404-020-05443-3
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DOI: https://doi.org/10.1007/s00404-020-05443-3