Dynamic study of the rectal detrusor activity at defecation.
Dynamic study of the rectal detrusor activity at defecation.
复制标题
排便时直肠逼尿肌活动的动态研究。
作者：
A. Shafik;Khalid A. Moneim
研究了29例正常和10例便秘患者直肠逼尿肌排便时的动态变化。直肠压力通过末端侧孔输尿管导管测量，腹内压力通过引入膀胱的Foley导管测量。用粪流法同时记录粪便流量。对正常受试者结果的评估显示，排便前直肠压力升高在开始排便时达到峰值，然后随着排便量的增加逐渐下降。这与便秘患者形成对比，在便秘患者中，排空前直肠压力的升高贯穿整个排空过程。直肠压力曲线的定量分析也可以区分正常和便秘的受试者。重要参数为开启压力和开启时间、开启压力时间和排气压力。同时记录腹内压力显示其在直肠压力增加中所占的份额。
The dynamics of the rectal detrusor at defecation was studied in 29 normal and 10 constipated subjects. The rectal pressure was measured by a ureteral catheter with terminal side holes, while the intra-abdominal pressure was measured by a Foley catheter introduced into the urinary bladder. Simultaneous recording of fecal flow was performed by fecoflowmetry. Assessment of the findings in normal subjects has shown a pre-evacuation rectal pressure elevation which reached its peak with the start of fecal flow and then fell gradually as the flow increased. This was in contrast to the constipated patients in whom the elevated pre-evacuation rectal pressure continued through the whole act of evacuation. Quantitative analysis of the rectal pressure curve could also differentiate between normal and constipated subjects. The significant parameters are the opening pressure and time, the pressure time and the evacuation pressure. The simultaneous recording of the intra-abdominal pressure demonstrates its share in the increase of the rectal pressure.