Ultrasound examination at term for predicting the outcome of delivery in women with a previous cesarean section

Abstract

In women with a PCS, measurement of cervical length and head-perineum distance at term is associated with the mode of delivery. A combination of clinical and sonographic parameters at term can predict the likelihood of vaginal delivery.

Digital Examination vs. 4D Transperineal Ultrasound—Do They Compare in Labour Management? A Pilot Study

“…TPU has several advantages: it is an objective and reproducible method of examination [9,10], easily accessible and less unpleasant than DE during the assessment of labour progress [11,12]. A combination of the Bishop Score and several (perineal) ultrasound parameters have been suggested in previous studies [13,14]. TPU parameters including the angle of progression (AoP), head progression distance and head-symphysis distance (HSD) were found to be associated with the duration of labour (DoL) [15] as well as the foetal head-perineum distance in combination with AoP [16] or in combination with ultrasonographically measured cervical length (CL) and foetal occiput position [17].…”

The use of cervical sonography to differentiate true from false labor in term patients presenting for labor check

“…[5][6][7][8][9][10][11][12] In term patients the use of CL has been limited to prediction of spontaneous labor in prolonged pregnancies and also in the prediction of successful labor induction. [13][14][15][16] To our knowledge, there are no data on CL measurements to differentiate true from false labor in term patients presenting for a labor check. Consequences from false-positive diagnosis of true labor at term are unnecessary hospital admissions, unnecessary obstetrical interventions, increased resource utilization, and increased cost.…”