Ultrasound Criteria for Expecting Mode of Delivery after Induction of Labour in Primigravida with Postdates

Mahmoud Alalfy,Mohamed Mamdouh Saleh,Ahmed Hassan

doi:10.15744/2454-3284.4.204

Abstract

Ultrasound Criteria for Expecting Mode of Delivery after Induction of Labour in Primigravida with Postdates

Highlights

The percent of labour induction increased in the past years
Pre-induction US assessment can be used as an objective tool for the prediction of mode of delivey including TVS measurement of cervical canal length in mm, TPS perineal head distance assessment in mm, as well fetal head position assessed by TAS
The majority of studies have used each of these ultrasonographic parameters separately as predictors of outcome of induction of labour, this study aimed to determine whether a combination of several ultrasound parameters i.e. amniotic fluid index, estimated fetal body weight, fetal head position, cervical canal length and perineal-head distance could improve the prediction of the successful vaginal delivery after induction of labor and whether this would allow more accurate counseling and better informed consent in the decision-making process regarding induction of labor

Summary

Introduction

The percent of labour induction increased in the past years. Pregnant women always ask about the risk of failure of labour induction and the possibility of CS. Researches revealed that intrapartum CS is related to a increased possibility of fetomaternal complications than planned CS delivery [3]. Bishop scoring system is still the standard method for prediction of the outcome of induction of delivery, with unfavorable cervical assessment with Bishop Score below six is the clinical risk factor. Many studies revealed that Bishop Score is a poor predictor of outcome but might assist in prediction of the the length of the latent phase [4]. Intrapartum transabdominal US of the positions of the fetal head recorded during labor could be useful indicator for expecting persistent Occipito Posterior position and labor induction failure

Objectives

Methods

Results

Conclusion