بررسی میزان پاسخ به اینداکشن در رابطه با بیشاپ اسکور سرویکس در بارداری ترم

          Induction of labor with oxytocin for initiating labor pains before    spontaneous starting of pains is one of the ways of terminating pregnancy    and it is used for various maternal or fetal indications. Bishop containing five    cervical characteristics (dilatation-effacement-position – presenting part    station – consistency) is scored from 0-10 and it is probably an effective    factor on successful labor induction.  The aim of this study was to find    relation of Bishop score with the rate of success in induction of labor.           377 pregnant women with G.A>37 weeks who were candidates of labor    induction for maternal or fetal indications were enrolled into the study. After    determinating Bishop score by vaginal examination, induction of labor with    oxytocin was performed in all patients.           Successful labor induction rate  was 91.3% and failure rate was 8.7%.    Vaginal delivery and cesarean section rate were 76.39% and 23.61%    respectively and both successful induction and vaginal delivery were higher    in multiparous in comparison to nulliparous women. There was a significant    relation between Bishop score and successful labor induction or vaginal    delivery (P=0.0001, P=0.0088). Cervical dilation was the only component in    the Bishop which showed significant relation with successful labor induction    and vaginal delivery. Duration of labor induction and time of reaching to    active phase (dilation=4cm) was different in different groups of Bishop    score.           Generally success of induction was desirable in all groups of Bishop    score, but considering the significant difference of groups in failure rate of    induction, Bishop can be used as a valuable predicting factor. Bishop scores    of more than four is associated with higher rate of successful labor induction    and lower rate of cesarean.