Resistance pain after episiotomy in primiparous woman in Tehran's educational hospitals: a prospective longitudinal study

Episiotomy is one of the most commonly performed procedures in obstetrics, but the best technique of episiotomy and its clinical benefits remain largely unknown.The aim of this study was determined resistance pain after episiotomy in primiparous woman and related factors. This was a prospective longitudinal study, primary outcome was the frequency of perineal pain on days of interview; second outcomes were determine effective factors of perineal pain. Research data about perineal pain after episiotomy that was conducted at ten academic hospitals in Tehran. This study included 510 primiparous women who gave birth vaginally. Data was collected with interview in 24 h, 10 and 40 days after delivery and after collecting information and filling forms, data was analyzed by SPSS 11.5 and tests such as chi-square, independent sample T-test and Mann-Whitney. The frequency of perineal pain was reported by 96.4% at first day, 63% at 10 days and 25% at 40 days after birth. Perineal pain had significantly related with maternal age in two time, the first day (p=0.001) and the tenth day (p=0.001), the number of steria was related with perineal pain in the first day after birth (p=0.001(, perineal pain in the fourth day after birth was related with first phase duration (p=0.002). The frequency of preneal pain among the women during the third time of postpartum is equal by foreign research. The number of steria and active phase duration are new influence factor on perineal pain that find in this survey, and need to more study about these.