Hypertension Research in Pregnancy
Online ISSN : 2187-9931
Print ISSN : 2187-5987
ISSN-L : 2187-5987
Original Article
Comparison of PROPESS and Intravenous Dinoprost for Reducing Amniotomy in Induced Labor under Epidural Analgesia
Yasushi Nakabayashi Makiko NakabayashiKiyomi NakabayashiMasayuki SantoMasao Nakabayashi
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2025 Volume 13 Issue 1 Pages 17-22

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Abstract

Aim: This retrospective study compared PROPESS and intravenous dinoprost administration in labor induction to determine whether PROPESS use reduced the percentage of women who underwent amniotomy in induced labor under epidural analgesia (the amniotomy rate).

Methods: Of the women who underwent induced labor under epidural analgesia at our hospital, 131 primiparous women with a Bishop score ≤6 were included in this study. The participants were divided into the following two groups to compare the amniotomy rates: (1) PROPESS group (n=72), cases in which labor was induced using PROPESS (between June 2022 and May 2024). (2) Dinoprost group (n=59), cases in which labor was induced using intravenous dinoprost (between June 2019 and May 2022).

Results: Amniotomy rates did not differ between the PROPESS and dinoprost groups. However, amniotomy before the onset of effective labor contractions was significantly less frequent in the PROPESS group than in the dinoprost group (8.8 vs. 44.4%; P<0.001).

Conclusions: The results indicate that the use of PROPESS in induced labor under epidural analgesia may reduce the number of women who undergo amniotomy during the latent phase of the first stage of labor.

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© 2025 Japan Society for the Study of Hypertension in Pregnancy
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