Analysis of predictive variables of success of the mechanical cervical ripening with Foley catheter in patients with a prior cesarean section and a postterm pregnancy

Objectives: Analysis of success variables cervical ripening with the Foley catheter in patients prior cesarean section (PCD), post-term pregnancy (PP), and a Bishop score £6. Evaluation technique’s safety. Study design: Prospective cohort trial which 120 were enrolled, from April 2014 to May 2018. PCD was codified four groups: 1) failed Induction (FI); 2) non-progressive labor (NPL) or cephalopelvic disproportion (CPD); 3) abruptio placentae (AP), risk fetal distress (RFD) placenta previa; 4) other causes. Inclusion criteria: singleton pregnancy; >40+6 weeks’ gestation; cephalic presentation; Score £6; >18 months; signed consent vaginal delivery (VD). Exclusion myomectomy entry into endometrial cavity; >1 PCDs uterine rupture; presentations; macrosomia; multiple vasa premature rupture membranes (PROM); inferior genital tract infection. Used material protocol: insertion at 9 am, followed by 2 hours cardiotocograph register (CR). This repeated 6 later. Catheter removal 12 after insertion. Intravenous oxytocin started 8 am following day. Statistical analysis: multivariable logistic regression assess similarity populations. Assessment relation between VD APL indication CL through regressions. The analysis performed using R (3.5.1), clickR packages (0.3.64), Boot Validation (0.1.6). Results: A total 86/109 (78.9%) achieved APL. Whereas 52/86 (60.47%) finished VD, 34/86 (39.53%) had (CD). No significant differences found indications for AP, RFD previa (OR = 7.85 IC95% [1.87, 39], p=0.007) have higher likelihood VD. NPL CPD; previa, achieving 14,55 [IC 95% 2.01, 308.5], p=0.023; OR 15,81 2.03, 359.78], p=0.024; respectively). As higher, lower (OR=0.92 [0.84, 0.99], p=0.034). registered. Conclusions: Cervical satisfactory 78.9% (86/109). that are different FI associate has decreasing effect on is safe method ripening.