VP45.13: Ultrasound prediction of the outcome of labour induction: which role for the cervical sliding sign?

To evaluate whether the cervical sliding sign (CSS) can predict outcome of induction labour (IoL). Multicentre prospective study including singleton patients undergoing elective IoL by means oral Misoprostol 50 mcg 4 hourly for a maximum doses at ≥37 weeks gestation. On admission transvaginal ultrasound was performed prior to IoL. Maternal characteristics, length and presence CSS were recorded. The defined as anterior lip on posterior one under gentle pressure TV probe. time from delivery (TtD), active (from dilation ≧6cm – AL), latency AL) rate vaginal deliveries < 24hours (D24) evaluated. Caesarean onset due fetal distress an exclusion criterion. 180 included, whom 111 (65%) nulliparae. present in 42 nulliparae (39%) 38 (64%) parous women. A shorter cervix noted with positive (21.8 ±7.0 vs 31.1±7.8 mm, p = 0.001). In nulliparous associated increased frequency D24 (52.4% 24.6%, 0.01) (30 ±10.7 20.1 ±10.8 hours, TtD (24.9±12.1 30 ±10.7, compared no CSS. Similar figures have been found multiparous patients, who showed higher (86,8% 17.1%, 0,01) Latency (11 ±7.6 16.7 ±9.1 (13.8 ±8.7 19.6 ±9.6 0.001) women independently (P .012) .001) overall population linear logistic regression analysis, respectively. also both 0.011, 0,031). Within random submitted term gestation is greater chances D24.