RESUMO
OBJECTIVE: To evaluate if a learning curve exists for cervical Foley placement for labor induction in women with unfavorable cervices and whether labor curves differ compared with the dinoprostone insert (PGE2). STUDY DESIGN: We conducted a secondary analysis of a multicenter randomized controlled trial. RESULT: For Foley and PGE2, successful placement occurred in 157/185 (85%) and 188/191 (98%) women (P<0.001). Unsuccessful Foley placements decreased over time (P=0.005); all occurred at the site previously using PGE2 preferentially. In women with allocated agent placed successfully who achieved complete cervical dilation, median progress with Foley (n=112), compared with PGE2 (n=123), was: 1-3 cm (6.2 vs 14.1 h; P<0.001), 3-6 cm (11.1 vs 6.7 h; P<0.001) and 6-10 cm (1.9 vs 1.5 h; P=0.14). CONCLUSION: There is a learning curve for placing cervical Foley catheters. Despite faster times to delivery, Foley is associated with slower dilation from 3 to 6 cm compared with PGE2.
