Effect of early amniotomy on dystocia risk and cesarean delivery in nulliparous women: a randomized clinical trial

Ghafarzadeh, Masoomeh) and Moeininasab, Samira and Namdari, Mehrdad (2015) Effect of early amniotomy on dystocia risk and cesarean delivery in nulliparous women: a randomized clinical trial. ARCHIVES OF GYNECOLOGY AND OBSTETRICS, 292 (2). pp. 321-325. ISSN 0932-0067

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Abstract

Artificial rupture of amniotic membranes (amniotomy) which induces or accelerates labor is the most common obstetrical procedure. There is controversy about the effect of early amniotomy on dystocia and cesarean delivery. The study aim was to determine the effect of early amniotomy on the risk of dystocia and cesarean delivery in nulliparous women. This randomized controlled clinical trial was conducted on 300 nulliparous women. They were randomly assigned into the experimental (early amniotomy; artificial amniotomy at cervical dilation a parts per thousand currency sign4 cm) and control (routine management) groups (each 150 women). Length of labor, dystocia, cesarean delivery, placental abruption, and umbilical cord prolapse were compared between the groups. Early amniotomy shortened labor duration significantly in experimental group (7.5 +/- A 0.7 h) compared to control group (9.9 +/- A 1.0 h) (P < 0.001). Dystocia (6.7 vs. 25.3 %, P < 0.0001), cesarean delivery (11.3 vs. 39.3 %, P < 0.001), and placental abruption (4.7 vs. 13.3 %, P = 0.009) were significantly lower in experimental group compared to the control group. Multiple logistic regression showed that early amniotomy decreased the odds of dystocia 80.6 % (95 % CI 58.6-90.1 %) and the odds of cesarean section 81.7 % (95 % CI 66.2-90.1 %). Early amniotomy was associated with lower rate of dystocia and cesarean delivery as well as shorter duration of labor.

Item Type: Article
Subjects: M Music and Books on Music > MT Musical instruction and study
Depositing User: sobhan rezaiian
Date Deposited: 23 Oct 2017 12:04
Last Modified: 23 Oct 2017 12:04
URI: http://eprints.lums.ac.ir/id/eprint/699

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