Mosli H A, Farsi H M, al-Zimaity M F, Saleh T R, al-Zamzami M M
Department of Urology, King Abdul-Aziz University Hospital, Jeddah, Saudi Arabia.
J Urol. 1991 Oct;146(4):966-9. doi: 10.1016/s0022-5347(17)37976-4.
A prospective study of 30 renal units in 27 patients with double pigtail ureteral stents seen at our hospital was done. The aim of the study was to confirm or rule out the occurrence of vesicoureteral reflux radiologically, and to define its degree in stented patients. During the filling phase of the cystourethrogram, reflux occurred in 19 of the 30 renal units (63%). Of those 19 renal units the reflux was grade 1/4 in 15 (79%), while in 4 (21%) it was of higher grades (2 to 3/4). During the voiding phase of the cystourethrogram reflux was observed in 24 of 30 renal units (80%). Of those 24 renal units reflux was of high grade (2 to 4/4) in 20 (83%), while it was low grade (1/4) in 4 (17%). In the presence of a double pigtail stent the ureteral peristaltic waves were sluggish and averaged 1 to 2 waves per minute in the 15 patients observed fluoroscopically for 1 minute after voiding. We conclude that in the majority of patients with double pigtail ureteral stents vesicoureteral reflux occurs at a low grade during vesical filling and at a high grade during voiding. Also, the stents adversely affect the ureteral peristaltic activities.
我们对我院收治的27例留置双猪尾输尿管支架的患者的30个肾单位进行了一项前瞻性研究。本研究的目的是通过影像学检查确认或排除膀胱输尿管反流的发生，并确定留置支架患者的反流程度。在膀胱尿道造影的充盈期，30个肾单位中有19个（63%）发生反流。在这19个肾单位中，15个（79%）的反流为1/4级，而4个（21%）为更高等级（2至3/4级）。在膀胱尿道造影的排尿期，30个肾单位中有24个（80%）观察到反流。在这24个肾单位中，20个（83%）的反流为高级别（2至4/4级），而4个（17%）为低级别（1/4级）。在留置双猪尾支架的情况下，输尿管蠕动波缓慢，在排尿后经荧光透视观察1分钟的15例患者中，平均每分钟1至2次蠕动波。我们得出结论，在大多数留置双猪尾输尿管支架的患者中，膀胱输尿管反流在膀胱充盈期为低级别，在排尿期为高级别。此外，支架对输尿管蠕动活动有不利影响。
