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Journal of anesthesia · Apr 2024
Effect of epidural analgesia on cervical ripening using dinoprostone vaginal inserts.
- Junichi Hasegawa, Chika Homma, Shota Saji, Natsumi Furuya, and Miki Sakamoto.
- Department of Perinatal Developmental Pathophysiology, St. Marianna University Graduate School of Medicine, Kawasaki, Japan. hasejun@marianna-u.ac.jp.
- J Anesth. 2024 Apr 1; 38 (2): 215221215-221.
ObjectiveTo clarify whether the duration from cervical ripening induction to labor onset is prolonged when epidural analgesia is administered following application of dinoprostone vaginal inserts vs. cervical ripening balloon.MethodsThis retrospective study included mothers with singleton deliveries at a single center between 2020-2021. Nulliparous women who underwent labor induction and requested epidural analgesia during labor after 37 weeks of gestation were included. The duration from cervical ripening induction to labor onset was compared between women using a dinoprostone vaginal insert and those using a cervical ripening balloon and between women who received epidural analgesia before and after labor onset.ResultsIn the dinoprostone vaginal insert group, the duration was significantly shorter in the subgroup that received epidural analgesia after labor onset (estimated median, 545 [95% confidence interval: 229-861 min]) than the subgroup that received it before labor onset (estimated median, 1,570 [95% confidence interval: 1,226-1,914] min, p = 0.004). However, in the cervical ripening balloon group, the difference between subgroups was not significant. The length of labor among the groups was also not significantly different.ConclusionEpidural analgesia as labor relaxant adversely affected the progression of uterine cervical ripening when dinoprostone vaginal inserts were used, whereas it did not affect cervical ripening when a mechanical cervical dilatation balloon was used. The present results are significant for choosing the appropriate ripening method.© 2024. The Author(s) under exclusive licence to Japanese Society of Anesthesiologists.
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