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肾盂输尿管连接部梗阻(Pyelo-ureteral junction obstruction,PUJO)临床多见。其尿流动力学改变及诊断方法的研究进展迅速。现将有关文献综述如下: 一、尿流动力学变化正常情况下,肾盂输尿管交界处在解剖结构上无明显界线。尿液充盈肾盂的同时,肾盂输尿管交界处及近端3～4cm的输尿管也充盈尿液。尿液充盈到一定容量肾盂输尿管就会发生收缩与蠕动,将尿液输向下方。肾盂基础压力(Pelvic baseline pressure,PBP)指尿液不充盈及没有收缩蠕动时肾盂压力。正常PBP各家报道不一,多认为<0.67kPa
Pyelo-ureteral junction obstruction (PUJO) clinical more common. The urodynamic changes and diagnosis of rapid progress. Now the relevant literature is summarized as follows: First, changes in urodynamics Under normal circumstances, the junction of the renal pelvis and ureter in the anatomical structure no clear boundary. Urine filling the renal pelvis at the same time, the junction of the ureteropelvic and the proximal 3 ~ 4cm ureteral filling urine. Urine filling to a certain volume of renal pelvis ureter will occur contraction and peristalsis, the urine lost to the bottom. Pelvic baseline pressure (Pelvic baseline pressure, PBP) refers to the urine is not filling and no contraction of peristalsis when pelvis pressure. Various reports of normal PBP vary, and more that <0.67kPa