Transvaginal ultrasonographic cervical measurement as a predictor of successful labor induction

The labor induction: integrated clinical and sonographic variables that predict the outcome

“…In fact, our study suggests that parity is the best predictor of labor induction, these results are in agreement with those found in literature. 7,9,16 We found that both the Bishop score and the transvaginal sonographic measurement of cervical length are significant predictors of induction success. Pandis (2001) 4 also reported this association.…”

“…Data reported in the literature are divergent regarding the definition of successful inductions, 6,5,[7][8][9] so it is difficult to compare different published studies concerning the prediction of labor induction. We considered, as well as Pandis and Rane, 4,12 the success of labor induction as vaginal delivery within 24 h. a n: number.…”

“…7,9 Chandra et al 7 found a lineal relationship between the cervical length and the Bishop score with induction-todelivery interval (P<0.001 and <0.001), but when the multiple regression analysis is performed including parity, the Bishop score, the cervical length and the inductor agent, it is concluded that only cervical length and parity are independent predictors in the mode of delivery (P<0.005). 7 Chandra et al 9 consider, as primary outcome, a successful induction (defined as those that end in a vaginal delivery) and only finding a significant relationship with the Bishop score (OR ¼ 2.98, P ¼ 0.001). They analyzed, as well, the relationship of different variables with a vaginal delivery in <24 h, finding only a significant association with parity (OR ¼ 7.10, P ¼ 0.009) and cervical effacement (OR ¼ 2.7, P ¼ 0.09).…”

“…6 Recently, several previous studies have analyzed the cervical length, by vaginal sonography, as a variable that predicts the success of induction. 4,5,[7][8][9][10] Some recent studies compare the Bishop score with vaginal sonographically cervical length, but we have not found any publication with an integrated analysis of the different variables that could have an influence on the success of inductions.…”

Prospective evaluation of clinical and ultrasonic feto-maternal parameters as predictors of caesarean delivery after induction of labour

“…Recent studies have shown that bishop score alone is a poor predictor of success of IOL as it is subjected to a higher intra and interobserver variations [9][10] . This can be explained by the virtue of fact that different induction protocols were followed in different studies.…”