Abstract:

With the implementation of the new labor standard in China, the vaginal delivery rate increases, the primary cesarean section rate decreases, but cesarean sections during labor indicated by fetal distress and intrapartum fever increase, intrapartum cesarean section will increases the risk of complications for mothers and neonatus. Vaginal delivery is a complex physiological process. During this process, influencing factors such as age, height, body mass index, gestational age, induced labor method, premature rupture of membranes and labor analgesia are valuable predictors of intrapartum cesarean section. One abnormal factor may not leads to intrapartum cesarean section, but the superposition of multiple influencing factors may significantly increase the probability, even the puerpera has no cesarean section indications. Therefore, it is very important to identify the risk factors of cesarean section during labor and control the indications and timing of cesarean section. It is planned to summarize the influencing factors of intrapartum cesarean section under the new labor standard, in order to provide directions for the construction of risk prediction model of intrapartum cesarean section.

Key words: Natural childbirth, Labor,obstetric, Trial of labor, Cesarean section, New labor standard, Influencing factors