VP45.10: Occiput spine angle and prediction of Caesarean delivery in protracted active phase of labour: occiput position does matter. Issue Volume 58:Issue S1(2021)Supplement (14th October 2021) - Dall'Asta, A.; Rizzo, G.; di Pasquo, E.; Mappa, I.; Masturzo, B.; Sorrentino, S.; Valenti, A.; Corno, E.; Cagninelli, G.; Casciaro, A.; Ghi, T.