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The Effect of Intramuscular Hyoscine and Hyoscine-Promethazine on the Duration of Labor in Nulliparous Pregnant Women (Triple-Blind Randomized Controlled Trial)

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Abstract

Childbirth consists of a three-stage period beginning with uterine, contractions, and ending in the expulsion of the placenta. The aim of this study was the effect of intramuscular hyoscine and hyoscine-promethazine on the duration of labor in nulliparous pregnant women. This study was a triple-blind clinical trial on 213 nulliparous pregnant women who had referred to Amiralmomenin hospital in Zanjan, Iran. Selection of samples was random and done with using 3, 6(1:1:1) of blocking ratio. This study had three groups. The first group received 20 mg hyoscine (group A), the second group 3 cc sterile water (group B), and the third group 20 mg hyoscine and 25 mg promethazine (group C). Data collection tools included a demographic questionnaire, checklist of data, and partograph chart. The mean of the first stage of labor in hyoscine group was 88.95 ± 51.07 min, hyoscine-promethazine 100.05 ± 65.88 min, and control group 170.37 ± 106.87 min. There was significant correlation between A and C and B and C groups (P < 0.001). The mean of the second stage in group A was 46.37 ± 44.60, group B 32.25 ± 17.74, and control group 55.05 ± 44.44 min and a significant relationship was between B and C groups (P = 0.03). The results showed that hyoscine and hyoscine-promethazine can be used to reduce the duration of labor.

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Change history

  • 21 May 2019

    The article listed above was initially published with incorrect copyright information. Upon publication of this Correction, the copyright of this article changed to ���The Author(s)���. The original article has been corrected.

  • 21 May 2019

    The article listed above was initially published with incorrect copyright information. Upon publication of this Correction, the copyright of this article changed to ���The Author(s)���. The original article has been corrected.

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Acknowledgments

This article is an approved project of the Tabriz University of Medical Sciences (11/03/2015). Finally, we would like to thank the president, personnel, and the staff of the Amiralmomenin Hospital of Khodabandeh.

Funding

This project was funded by the Tabriz University of Medical Sciences Deputy.

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Correspondence to Fahimeh Sehhatie Shafaie.

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The authors declare that they have no conflict of interest.

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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.

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This article is part of the Topical Collection on Medicine

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Shafaie, F.S., Shahmohammadi, F., Jafarabadi, M.A. et al. The Effect of Intramuscular Hyoscine and Hyoscine-Promethazine on the Duration of Labor in Nulliparous Pregnant Women (Triple-Blind Randomized Controlled Trial). SN Compr. Clin. Med. 1, 60–66 (2019). https://doi.org/10.1007/s42399-018-0013-8

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