VARIATIONS IN URETHRAL AND BLADDER PRESSURE DURING STRESS EPISODES IN HEALTHY WOMEN
VARIATIONS IN URETHRAL AND BLADDER PRESSURE DURING STRESS EPISODES IN HEALTHY WOMEN
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DOI：
10.1111/j.1464-410x.1990.tb14960.x
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发表时间：
1990-10-01
期刊：
影响因子：
--
通讯作者：
COLSTRUP, H
中科院分区：
文献类型：
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作者：
THIND, P;LOSE, G;COLSTRUP, H
研究了30名健康女性志愿者压力发作时尿道和膀胱压力的变化及其时间间隔。压力测量采用双微尖传感器导管，远端传感器位于膀胱内，近端传感器位于膀胱颈、中尿道和远端尿道。在咳嗽时压力尖峰之前，膀胱和尿道的所有3个测量点都显示出压力升高。在压力尖峰前后的尿道压力增量在尿道中部明显高于相应的膀胱压力。在膀胱压力开始上升前200 ms，这种主动尿道压力在尿道中部和尿道远端产生。尿道高压区压力均高于膀胱压力。由于尿道内压力持续高于膀胱内压力，且高压区位于腹腔分界处，因此向尿道高压区的被动压力传递只能发生不明显。结论：应激发作时尿道高压区压力升高主要是由尿道内和/或尿道周围结构主动产生的。
Pressure variations in the urethra and bladder during stress episodes and their time separations were investigated in 30 healthy female volunteers. The pressure was measured by means of a double microtip transducer catheter with the distal sensor in the bladder and the proximal sensor at the bladder neck, the mid-urethra and the distal urethra. In advance of the pressure spike during cough a pressure rise was demonstrated in the bladder and at all 3 sites of measurement in the urethra. The urethral pressure increments preceding and following the pressure spike were statistically significantly higher in the mid-urethra than the corresponding bladder pressures. This active urethral pressure generation in the mid-urethra and distal urethra was initiated 200 ms before the bladder pressure began to rise. The pressure in the urethral high pressure zone was higher than the bladder pressure in all cases. Passive pressure transmission to the urethral high pressure zone can take place only insignificantly due to a continuous higher pressure inside the urethra than in the bladder and due to the location of the high pressure zone in the demarcation of the abdominal cavity. It was concluded that the urethral pressure rise in the high pressure zone during stress episodes is mainly generated actively by intra- and/or peri-urethral structures.