关键词: 间苯三酚, 初产妇, 阴道分娩, 子宫动脉

Abstract: This article discusses the effects of intravenous injection of phloroglucinol in the analgesia of primiparous vaginal labor and its influence on the ultrasound parameters of the uterine artery. 180 primiparas were selected, observation group (n=93) was given intravenous injection of phloroglucinol and control group (n=87) was given intravenous injection of diazepam. Compared the differences of labor process time, VAS score, uterine artery ultrasound and so on between the two groups. The first and the second stage of labor in the observation group were significantly shorter than those in the control group (P<0.05). The VAS scores of the different stage of labor in the observation group were significantly lower than those in the control group (P<0.05). The proportion of vaginal delivery in the observation group was significantly higher than those in the control group (P<0.05). Before delivery, 30 minutes of injection and full-time cervix there were no significant differences in uterine artery, fetal middle cerebral artery pulsatility index (PI), resistance index (RI) and maximum peak blood flow velocity / end diastolic blood flow velocity (S/D) between the two groups (P>0.05). In vaginal delivery analgesia, the intravenous injection of phloroglucinol can accelerate the progress of labor, reduce labor pain, and has no significant effect on ultrasonic parameters such as uterine artery.

Key words: phloroglucinol, primipara, vaginal delivery, uterine artery