Department of Obstetrics and Gynecology, University Hospital of Kuopio, Kuopio, Finland.
Acta Obstet Gynecol Scand. 2011 Jun;90(6):629-35. doi: 10.1111/j.1600-0412.2011.01122.x. Epub 2011 Apr 15.
To study changes in mid-urethral function with dynamic MRI in stress urinary incontinent women undergoing either tension-free vaginal tape (TVT) or TVT-obturator sling operations.
Prospective clinical study.
University hospital.
Forty-two parous women with stress urinary incontinence recruited to dynamic magnetic resonance imaging before and after mid-urethral sling surgery. Control group of 16 healthy women.
Dynamic magnetic resonance imaging at rest, during pelvic floor muscle contraction, coughing and voiding with a bladder volume of 200-300 ml. X- and Y- coordinates were used to determine the location of the mid-urethra during these activities.
Changes in mid-urethral position after TVT and TVT-obturator operations during the different activities.
Postoperatively the women could elevate their mid-urethra by pelvic floor muscle contraction significantly higher than before the operation (p<0.05). Despite a different support angle between the TVT and the TVT-O mid-urethral slings, we could not see any differences in the movement patterns.
Mid-urethral slings support the mid-urethra and restrict downward movement during different activities. Movement patterns are similar after TVT and TVT-O operations.
研究压力性尿失禁女性行经阴道无张力吊带（TVT）或 TVT-闭孔吊带手术后，中尿道功能的变化。
前瞻性临床研究。
大学医院。
42 名经阴道分娩的压力性尿失禁女性，在中尿道吊带手术后进行动态磁共振成像检查。16 名健康女性作为对照组。
在休息、盆底肌肉收缩、咳嗽和排空时，使用膀胱容量为 200-300ml 的情况下进行动态磁共振成像。使用 X 和 Y 坐标来确定中尿道在这些活动中的位置。
TVT 和 TVT-闭孔吊带手术后不同活动中中尿道位置的变化。
术后女性通过盆底肌肉收缩可以显著提高中尿道的位置，明显高于手术前（p<0.05）。尽管 TVT 和 TVT-O 中尿道吊带的支撑角度不同，但我们没有看到手术前后活动模式有任何差异。
中尿道吊带支撑中尿道并限制其在不同活动中的向下运动。TVT 和 TVT-O 手术后的活动模式相似。
