Abstract
Key message
Trial of labor among women who never delivered vaginally with hypertensive disorder is associated with nearly half the success rate of the general population.
Purpose
To study the trial of labor after cesarean (TOLAC) among women with hypertensive disorders and no prior vaginal delivery.
Methods
A retrospective cohort study was conducted including women with no prior vaginal delivery undergoing TOLAC during 2010–2020. Women with hypertensive disorder were compared to those without.
Results
A total of 54/2,144 (2.5%) TOLACs had a hypertensive disorder: 32 (59%) had gestational hypertension, 16 (30%) had chronic hypertension and 6 (11%) had preeclampsia. Women with hypertensive disorders had higher BMI and higher proportion of diabetic disorders. TOLAC success rate was lower among hypertensive mothers: 32 (59%) vs. 1,605 (76.8%), p=0.003 odds ratio (OR), 95% confidence interval (CI) 0.44 (0.25–0.76). The rate of uterine rupture was 23/2,144 (1.1%). In a multivariable logistic regression analysis, hypertensive disorder was independently negatively associated with TOLAC success, adjusted OR (95% CI) 0.47 (0.26–0.85). Other factors negatively independently associated with TOLAC failure were maternal age, predelivery body mass index, dystocia at primary CD, gestational age at TOLAC, induction of labor and birth weight. Epidural was independently positively associated with TOLAC success, adjusted OR (95% CI) 1.54 (1.18–1.99).
Conclusion
TOLAC in hypertensive women with no prior vaginal delivery is safe. Success rate is impaired in comparison to non-hypertensive women.
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Abbreviations
- TOLAC:
-
Trial of labor after cesarean
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RM and GL: conceptualization, formal analysis, investigation and methodology, writing—original draft, and writing—review and editing. AT, LT, NM and MZ: data collection. All authors contributed to the manuscript. RM: project development, data collection and management, analysis and interpretation of data, manuscript writing, approval of the version to be published. AT: project development, data collection and management, analysis and interpretation of data, approval of the version to be published. LT: project development, data collection and management, approval of the version to be published. NM: project development, data collection and management, approval of the version to be published. MZ: project development, data collection and management, approval of the version to be published. GL: project development, analysis and interpretation of data, manuscript writing, approval of the version to be published.
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The study protocol was approved by the Sheba Medical Center review board (7145–20-SMC, 30/09/2020).
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Levin, G., Tsur, A., Tenenbaum, L. et al. Trial of labor after cesarean in women with hypertensive disorders and no prior vaginal delivery. Arch Gynecol Obstet 307, 771–777 (2023). https://doi.org/10.1007/s00404-022-06601-5
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DOI: https://doi.org/10.1007/s00404-022-06601-5