Ultrasound imaging of the female perineum: the effect of vaginal delivery on pelvic floor dynamics
Article first published online: 30 DEC 2005
Copyright © 2005 ISUOG. Published by John Wiley & Sons, Ltd.
Ultrasound in Obstetrics & Gynecology
Volume 27, Issue 2, pages 183–187, February 2006
How to Cite
Costantini, S., Esposito, F., Nadalini, C., Lijoi, D., Morano, S., Lantieri, P. and Mistrangelo, E. (2006), Ultrasound imaging of the female perineum: the effect of vaginal delivery on pelvic floor dynamics. Ultrasound Obstet Gynecol, 27: 183–187. doi: 10.1002/uog.2663
- Issue published online: 24 JAN 2006
- Article first published online: 30 DEC 2005
- Manuscript Accepted: 30 SEP 2005
- anorectal angle;
- levator ani muscle;
- pelvic floor;
- perineal ultrasound;
- urethral mobility;
- vaginal delivery
To assess the use of perineal ultrasound in the evaluation of the influence of vaginal delivery on urethral mobility and on the contraction strength of the levator ani muscles.
This was a prospective observational study of 70 nulliparous women. Each woman underwent perineal ultrasound assessment at 36–38 weeks' gestation and at 1 week and 3 months following delivery. During each examination we assessed: the posterior urethrovesical angle at rest, urethral mobility during Valsalva maneuver and movement of the anorectal angle and levator sling angle during contraction of the levator ani.
The urethrovesical angle and the urethral mobility increased significantly after delivery (P < 0.0001). The levator sling excursion decreased proportionally. The anorectal excursion had decreased significantly by the examination 3 months after birth.
Perineal sonography provides objective assessment criteria for urethral mobility and for contraction strength of the levator ani muscles and detects changes in the anatomy and function of the pelvic floor after vaginal delivery. Copyright © 2005 ISUOG. Published by John Wiley & Sons, Ltd.