Gujral R B, Roy S, Baijal S S, Phadke R V, Ahlawat R, Srinadh E S, Rastogi H
Department of Radiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India.
J Vasc Interv Radiol. 1995 May-Jun;6(3):427-32. doi: 10.1016/s1051-0443(95)72835-4.
The role of expandable metallic Z stents (non-mesh) in the treatment of recurrent posterior and bulbar urethral strictures was evaluated.
Seven men with recurrent posterior/bulbar urethral strictures underwent balloon angioplasty followed by insertion of two stents in tandem. Retrograde urethrography, micturating cystourethrography, and urodynamic evaluation of these patients was done initially.
Successful dilation and placement of stents was possible in all cases. In one patient slight proximal migration of the stent occurred; terminal dysuria in this patient necessitated stent extraction. In two other patients near total occlusion of the stent by an exuberant fibrous reaction occurred and this open urethroplasty in the other. Immediate postprocedure urethrography and urodynamic evaluation showed significant improvement. Five patients continue to show a satisfactory clinical urodynamic response. The follow-up period in this patient group ranged from 5 months to 1 year.
Short-term response (5 months to 1 year) in patients with posterior/bulbar urethral strictures treated with Z stents appears promising. However, the efficacy of the procedure on a long-term basis requires further follow-up and evaluation.
评估可扩张金属Z形支架（非网状）在复发性后尿道和球部尿道狭窄治疗中的作用。
7例复发性后尿道/球部尿道狭窄患者先接受球囊血管成形术，随后串联置入两个支架。最初对这些患者进行了逆行尿道造影、排尿性膀胱尿道造影和尿动力学评估。
所有病例均成功进行了支架扩张和置入。1例患者支架出现轻微近端移位；该患者终末尿痛需要取出支架。另外2例患者支架因旺盛的纤维反应几乎完全闭塞，其中1例进行了开放性尿道成形术。术后即刻尿道造影和尿动力学评估显示有显著改善。5例患者继续表现出令人满意的临床尿动力学反应。该患者组的随访期为5个月至1年。
用Z形支架治疗后尿道/球部尿道狭窄患者的短期反应（5个月至1年）似乎很有前景。然而，该手术的长期疗效需要进一步随访和评估。
