Intrapartum sonographic assessment of the fetal head flexion in protracted active phase of labor and association with labor outcome: a multicenter, prospective study

Abstract

Objective Fetal head deflexion is associated with protracted labor and an increased incidence of cesarean delivery. Therefore, we aimed to assess the relationship between the transabdominal sonographic indices of fetal head flexion and the mode of delivery in women with protracted active phase of labor.