【正文】
ncentration ropivacaine bined with fentanyl and pentazocine for analgesia effect and plications. Method 1200 cases of fullterm, singleton, cephalic primipara, divided for three groups, analgesic formula: Group F % ropivacaine hydrochloride + 1 g / ml fentanyl, dezocine his group P % ropivacaine hydrochloride +, C group as the control group. Drive to a 3cm epidemic epidural analgesia in the palace mouth, analgesia group of analgesics was recorded 5 min before, pain after 10 min, 30 min after analgesia, palace mouth full, repair of perineal vas and modified Bromage score, recorded in the controls palace mouth open big 3cm, palace mouth full, perineal repair of vas and modified Bromage score. Record all maternal first active period, the second stage of labor and the labor time, analgesia after 30 min blood pressure pared to the analgesia of decrease value of blood pressure (mmHg, oxytocin usage, transfer rate of cesarean section, instrumental delivery rate, after the delivery of the fetus 2 hours of vaginal bleeding. Results F group and P group analgesia after 10 min, 30 min after analgesia, palace mouth open all, repair of perineal VAS score was significantly lower than that of group C, group F and p the first stages of the active phase and the second stage of labor time shorter than that in group C, F group and P group oxytocic hormone u