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Comparative study regarding effect of pH on Misoprostol in induction of labor in full term primigravida pregnant women, a double blind randomized controlled trial

  • Ahmed S. S. A. Rashwan , Mahmoud Alalfy ORCID logo EMAIL logo , Mohamed el-sharkawy , Abdelfatah Eldesouky , Ahmed SA Ashour , Ayman Hassan , Alaa Alebrashy and Ahmed Bakry
Published/Copyright: August 18, 2020

Abstract

Objectives

To evaluate the effect of altering vaginal pH on induction of labor in full-term pregnancies using Misoprostol.

Methods

This randomized controlled trial was conducted at Kasralainy Hospital, Cairo University, Egypt and Algezeera Hospital, Egypt. A total of 218 healthy term primigravida pregnant women who were scheduled for pregnancy termination were recruited in the study. The included patients were divided into three groups; Group A: Those who received normal saline vaginal wash (0.9% NaCl), Group B: those who received alkaline vaginal wash (5% sodium bicarbonate) and Group C: those who received acidic vaginal wash (5% acetic acid). Patients received 25 μg of Misoprostol E1 (Vagiprost® Adwia Pharmaceuticals, Egypt) every 6 h for a maximum of 24 h (total of four potential doses).

Results

The ‘acid’ group participants took a mean time of 20.46 h to reach active stage of labor, followed by the ‘normal saline’ group with 21.45 h and the ‘alkaline’ group with 22.59 h. The difference between the groups was statistically significant, with a p-value of 0.013.

Conclusions

Douching the vagina with acidic solution seems to supplement the effect of Misoprostol on inducing labor in full-term pregnancies, as evidenced by having the shortest mean time needed to reach active stage of labor.


Corresponding author: Mahmoud Alalfy, Reproductive Health and Family Planning Department, National Research Centre, Aljazeerah Hospital, Giza, Egypt, Phone: 01002611058, E-mail:

  1. Research funding: None declared.

  2. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: Authors state no conflict of interest.

  4. Informed consent: Informed consent was obtained from all individuals included in this study.

  5. Ethical approval: The study was conducted after getting approval from an Institutional Review Board (IRB). The study conforms to the provisions of the Declaration of Helsinki.

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Received: 2020-05-16
Accepted: 2020-07-28
Published Online: 2020-08-18
Published in Print: 2021-01-26

© 2021 Walter de Gruyter GmbH, Berlin/Boston

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