Berglund B, Brevinge H, Akerlund S, Kock N G
Department of Surgery, Sahlgrenska sjukhuset, University of Göteborg, Sweden.
Scand J Urol Nephrol. 1992;26(1):29-33. doi: 10.3109/00365599209180393.
When bladder substitution is required, a low pressure receptacle and an antireflux valve with low resistance to flow is essential for preservation of the upper urinary tract. The aim of this study was to evaluate whether these criteria are attained in the continent ileal reservoir used for urinary diversion. The investigations were performed in six patients more than one year after supravesical urinary diversion via a continent ileal reservoir. The pressure was recorded simultaneously both in the afferent loop and in the reservoir during filling of the reservoir. There was a slow parallel increase in the basal pressure in the reservoir and the afferent loop. Pressure waves appeared sometimes simultaneously and sometimes in only one compartment at a time. Only during short periods of time did the pressure exceed 25 cm of water. The frequency of pressure waves increased with increased filling of the reservoir. The "total pressure" was larger in the reservoir than in the afferent loop. It is the antireflux valve which prevents pressure rises in the reservoir from being conveyed to the upper urinary tract. The resistance to urinary flow was moderate.
当需要进行膀胱替代时，一个低压贮器和一个对尿液流动阻力低的抗反流阀对于保护上尿路至关重要。本研究的目的是评估用于尿液改道的可控回肠贮袋是否满足这些标准。研究对象为6例经可控回肠贮袋进行膀胱上尿液改道一年以上的患者。在贮袋充盈过程中，同时记录传入肠袢和贮袋内的压力。贮袋和传入肠袢的基础压力呈缓慢平行升高。压力波有时同时出现，有时仅在一个腔室出现。仅在短时间内压力超过25厘米水柱。压力波的频率随着贮袋充盈量的增加而增加。贮袋内的“总压力”高于传入肠袢。正是抗反流阀阻止了贮袋内压力升高传递至上尿路。尿液流动阻力适中。
