Sonographic knowledge of occiput position to decrease failed operative vaginal delivery: a systematic review and...

Area of Science:

• Obstetrics and Gynecology
• Diagnostic Imaging
• Clinical Trials

Background:

• Operative vaginal delivery is a common obstetric procedure.
• Accurate assessment of fetal occiput position is crucial for successful operative vaginal delivery.
• Clinical digital assessment of fetal occiput position can be inaccurate.

Purpose of the Study:

• To evaluate the efficacy of sonographic assessment of fetal occiput position before operative vaginal delivery.
• To determine if ultrasound can decrease the rate of failed operative vaginal deliveries.

Main Methods:

• A systematic review and meta-analysis of randomized controlled trials (RCTs) were conducted.
• Searched multiple electronic databases up to April 2021.
• Included RCTs comparing sonographic versus clinical digital diagnosis of fetal occiput position before operative vaginal delivery.

Main Results:

• Four RCTs with 1007 women were included.
• No significant difference in failed operative vaginal delivery rates between sonographic and clinical groups (9.9% vs 8.2%).
• Sonographic diagnosis significantly reduced occiput position discordance compared to clinical assessment (2.3% vs 17.7%).

Conclusions:

• Sonographic assessment of fetal occiput position does not currently reduce failed operative vaginal deliveries.
• Ultrasound offers superior accuracy in diagnosing fetal occiput position compared to clinical methods.
• Future research should explore how improved sonographic accuracy can enhance operative vaginal delivery safety and effectiveness.