Abstract: In this paper, the changes of bladder structural parameters under conditions of resting, anal retraction and maximal Valsalva maneuver after pelvic floor reconstruction were evaluated and analyzed by ultrasound. 87 patients underwent pelvic floor reconstruction surgery were selected as observation group, and 80 women without pelvic organ prolapse were selected as control group. The bladder neck mobility (BND), the urethral bladder posterior angle under the conditions of resting, anal retraction and Valsalva maneuver were compared between the two groups. At the same time, the observation group was given pelvic floor reconstruction surgery, and the changes of bladder structure parameters before and after surgery were compared. The BND, urethral bladder posterior angle under resting, anal retraction and Valsalva in observation group were significantly higher than those in control group (P<0.05). In observation group the postoperative BND, urethral bladder posterior angle under resting, anal retraction and Valsalva were significantly lower than those before operation (P<0.05). The BND, the urethral bladder posterior angle under resting and Valsalva maneuver in patients with postoperative pelvic floor dysfunction questionnaire (PFDI-20) scores ≤ 75 points were significantly lower than those in patients with postoperative PFDI-20 score > 75 points (P<0.05). Ultrasonography can visually and effectively observe the bladder structure, and provide an objective reference for disease diagnosis and pelvic floor reconstruction surgery evaluation.

Key words: ultrasonography, pelvic floor reconstruction, resting, anal retraction, Valsalva actions, bladder