Akerlund S, Berglund B, Granerus G, Jensen J, Kock N G, Philipson B M
Scand J Urol Nephrol. 1987;21(2):109-14. doi: 10.3109/00365598709180303.
The drainage from the upper urinary tract was studied by the use of renography in thirteen patients with well functioning continent ileal reservoirs for urinary diversion (Kock-pouch). Renography was performed with empty reservoir and with submaximal or maximal filling of the reservoir. The reservoir pressure was continuously recorded when renography was performed with a full reservoir. When the reservoir was empty renography showed normal drainage in all patients. When the reservoir was full the renography was normal in eight patients, these having a mean reservoir volume of 715 ml but showed a delay in five patients, these having a mean reservoir volume of 930 ml. When the renography was repeated in the latter group of patients with submaximal filling (mean reservoir volume 544 ml) there was no delay of the drainage phases on the renograms. In these five patients the considerable "over-filling" of the reservoir had resulted in volumes greatly exceeding the previously recorded maximal reservoir capacity and also in pressures exceeding considerably those usually recorded in ileal reservoirs. These results show that the pressure in the bladder substitute is of great significance for the drainage from the upper urinary tract and that the low pressure ileal reservoir under ordinary circumstances does not obstruct the flow from the upper urinary tract.
通过肾图对13例使用功能良好的可控回肠膀胱储尿囊（Kock袋）进行尿液改道的患者的上尿路引流情况进行了研究。肾图检查分别在储尿囊排空时以及储尿囊次最大量或最大量充盈时进行。当储尿囊充满时进行肾图检查的同时，持续记录储尿囊压力。当储尿囊排空时，肾图显示所有患者引流正常。当储尿囊充满时，8例患者肾图正常，这些患者的储尿囊平均容量为715毫升，但5例患者出现延迟，这些患者的储尿囊平均容量为930毫升。当对后一组储尿囊次最大量充盈（平均储尿囊容量544毫升）的患者重复进行肾图检查时，肾图上引流期没有延迟。在这5例患者中，储尿囊的大量“过度充盈”导致容量大大超过先前记录的最大储尿囊容量，并且压力也大大超过通常在回肠储尿囊中记录的压力。这些结果表明，膀胱替代物中的压力对上尿路引流具有重要意义，并且在通常情况下，低压回肠储尿囊不会阻碍上尿路的尿液流动。
