IRCT2014051511706N7 IRCT 2014-05-17 Research Council of Shiraz University of Medical Sciences The effect of warm compress bi-stage intervention on prevention of perineal trauma and second stage pain intensity and duration the first stage and second stage in primiparous with delayed valsalva maneuver The effect of warm compress bi-stage intervention on prevention of perineal trauma and second stage pain intensity and duration the first stage and second stage in primiparous with delayed valsalva maneuver referred to selected hospital of Shiraz university of medical sciences 2012 2012-10-11 anticipated 225 Complete https://irct.ir/trial/11891 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive. N/A Condition 1: Pain intensity. Condition 2: Perineal laceration. Intervention 1: Groups with a single step, after entering the second stage of labor (dilation 10 centimeters and a zero position) were put warm compresses for 20-15 minutes in between and during contractions on the perineum. Intervention 2: The two-stage intervention group, a warm compress on the cervix dilatation 8-7 cm and a 10 cm between and during contractions lasting 20-15 minutes on the perineum was placed. Intervention 3: The control group received only routine care.