BACKGROUND/OBJECTIVE Duration of labor varies from one pregnancy to another and a period of less than 12 hours is regarded as normal. Modern obstetric practice involves active management of labor with the aim of preventing prolonged labor and its sequelae. The main objective of this study was to determine and compare the average duration of labor of spontaneous onset between nulliparas (Po) and...

Background: Dystocia is the most common indication of primary cesarean section. The most common cause of dystocia is uterine dysfunction. In prolonged labor, more attention is usually paid to the fetus and pelvis rather than to the role of uterine contractions in a delivery. Therefore, we decided to determine the relationship between the labor progress and uterine contractions shapes.Methods: I...

 Introduction: The aim of this study is to compare the efficacy of epidural versus entonox methods for labor analgesia in nulliparous women.  Methods: This randomized controlled trial was performed on 84 nulliparous women with - pregnancy admitted to Imam Reza Hospital in 10 May 2010- 10 May 2011.  They were randomly divided into two groups 42 women inhaled entonox in active phase at the ...

The aim of this case control study was to evaluate the thus far controversially discussed influence of acupuncture (AP) on the duration of labor. Fifty-seven women with AP treatment (group A) were included in our study after spontaneous vaginal full-term delivery. The control group included 63 women (group B). Median duration of the first stage of labor was 196 min in group A and 321 min in gro...

background & aim: although cold and heat have been recommended for labor pain relief, comparison of them and intermittent change in cold and heat therapy has been less considered. this study compared the effects of separate and intermittent heat and cold on labor pain relief and some birth outcomes . methods & materials : this was a randomized clinical trial. ninety-six parturient women were ra...

OBJECTIVE Our main objective was to investigate the association between duration of active labor and severe postpartum hemorrhage. We examined the effect of the total duration of active labor, the effect of each stage of active labor, and the gradient effect of duration of labor on severe postpartum hemorrhage. METHODS A case-control study was generated from a source population of all women a...

background: spinal analgesia is one of the effective and rapid methods for labor. it is not commonly used because of short duration of analgesia and motor block, which limits mother's force in labor progression. we attempted to prolong duration and quality of analgesia by adding epinephrine. methods: in this quasi-experimental study 90 pregnant women gravid ii and iii who referred to motazedi a...