Clinical Trial: A Prospective Study on USS Assessment of Pelvic Structures in 3rd Trimester of Pregnancy Versus Delivery Outcome

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Prospective Study on USS Assessment of Pelvic Structures in 3rd Trimester of Pregnancy Versus Delivery Outcome.

Brief Summary:

The proposed study is to evaluate if there are specific factors in the pelvic floor functional anatomy which can predict the ability of having a vaginal birth after caesarean section.

Physical characteristics of the soft tissue in the female pelvis play an important role in successful vaginal delivery. A "tight" or less distensible pelvic floor muscles may influence mode of delivery, leading to poor labour progression and by compressing foetal head produce CTG abnormality such as decelerations, both resulting in caesarean delivery.

One of the main structures of the pelvic floor, the puborectoalis muscle, facilitates the passage of fetal head through the birth canal by stretching and distending. Therefore distensibility of the female pelvic floor influences mode of delivery.

Three hundred patients, in the third trimester of pregnancy, will be recruited via the antenatal clinics to minimize any disruption in their pregnancy care provision. Eligible participants are pregnant women who had either one or no vaginal births, or one caesarean section and who can give an informed consent and maintain their autonomy regarding mode of delivery with understanding of the forthcoming study results. Participants will be excluded if they sustain any obstetric complications that may impede on time and mode of delivery including an emergency prelabour caesarean section.

Ultrasonographic assessment of the differences in the pelvic characteristics of these women will be used to predict a successful of trial of vaginal delivery after caesarean section (VBAC) in subsequent pregnancies. The results will be used to better inform whether there is a simple (single ultrasound assessment) that can be used to help inform women's choice regardi

Detailed Summary:
Sponsor: Birmingham Women's NHS Foundation Trust

Current Primary Outcome: vaginal delivery [ Time Frame: 12 months ]

Original Primary Outcome: Same as current

Current Secondary Outcome: voiding problems [ Time Frame: 12 months ]

Original Secondary Outcome: Same as current

Information By: Birmingham Women's NHS Foundation Trust

Dates:
Date Received: October 9, 2014
Date Started: November 2014
Date Completion:
Last Updated: July 26, 2015
Last Verified: July 2015