In 10 female pigs, the proximal part of the left ureter was obstructed for 10 weeks by implantation of the ureter into the psoas muscle. After 9 weeks of obstruction, 6 systems showed delayed or impaired drainage at renographic examination. Renal function was slightly impaired in 1 case. At operation, 4 systems were macroscopically normal while the rest showed slight to moderate dilatation. The intrapelvic resting pressure was normal in 8 of 9 cases. At perfusion, all systems responded within the normal limits at 8 cmVmin while high-pressure responses were found in 4 units above 8 cmVmin. No correlation was found between the resting pressure and the pressure response and the degree of dilatation or impairment of renal function.

Keywords:
Renal pelvic pressure, Partial obstruction, Pressures at perfusion
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© 1984 S. Karger AG, Basel
1984
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