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Related Experiment Videos

Changes in vesical neck mobility following vaginal delivery

U Peschers1, G Schaer, C Anthuber

  • 1Department of Obstetrics and Gynecology, Kantonsspital, Luzern, Switzerland.

Obstetrics and Gynecology
|December 1, 1996
PubMed
Summary

Vaginal delivery can affect bladder neck position and urethral mobility during the Valsalva maneuver and pelvic floor muscle contractions. Some women experience reduced bladder neck elevation and, in rare cases, loss of voluntary pelvic floor muscle control post-delivery.

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Area of Science:

  • Urogynecology
  • Pelvic Floor Imaging
  • Postpartum Recovery

Background:

  • Childbirth can impact pelvic floor function and urethral support.
  • Understanding these changes is crucial for managing postpartum urinary issues.

Purpose of the Study:

  • To evaluate alterations in urethral movement and pelvic floor muscle function after vaginal delivery.
  • To compare postpartum changes with pre-delivery states and nulligravid controls.

Main Methods:

  • Prospective, repeated-measures study involving primigravidas, multiparas, and cesarean controls.
  • Perineal ultrasound assessed bladder neck position and mobility during Valsalva maneuver and pelvic muscle contraction.
  • Measurements taken during pregnancy and 6-10 weeks postpartum.

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Main Results:

  • Women post-vaginal delivery showed a significantly lower resting bladder neck compared to cesarean and nulligravid groups.
  • Increased bladder neck mobility during Valsalva was observed in a majority of women post-vaginal delivery.
  • Decreased ability to elevate the bladder neck during pelvic muscle contraction occurred in some women; complete loss of voluntary contraction was noted in two forceps delivery cases.

Conclusions:

  • Vaginal delivery significantly alters bladder neck descent during the Valsalva maneuver.
  • Pelvic floor muscle's ability to elevate the urethra is impaired in some women following vaginal delivery.