Department of Urology, Bnai Zion Medical Center, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
J Endourol. 2012 Nov;26(11):1523-7. doi: 10.1089/end.2012.0279.
Ureteral strictures (US) can be a recurrent chronic illness that leads to severe side effects and poor quality of life. Several options to treat US exist, including repeated dilations, stents, minimally invasive reconstructive surgeries, and urinary diversion or nephrectomy. Placement of an ureteral stent is a good minimally invasive option but has major limitations, such as stent migration, mucosal in-growth, incrustations, and stent obstruction. Our study aim was to evaluate the safety and the efficacy of a new self-expanding, large caliber ureteral stent (Allium(®)).
During 2005 to 2011, 49 stents were inserted in 49 renal units (40 patients) for a mean indwelling time of 17 months (range 1-63 mos).
Migration was observed in seven (14.2%) patients, mandating stent removal. Only one stent was occluded. In eight renal units, the stents were removed as scheduled, and no reobstruction was detected during follow-up. Twenty-eight patients currently have a patent stent.
The Allium stent provides an attractive solution for long-term internal ureteral drainage. Its design allows good anchoring, prevents intraluminal ingrowth, and has the ability of rapid disintegration for extremely easy removal.
输尿管狭窄（US）可能是一种反复发作的慢性疾病，会导致严重的副作用和生活质量下降。治疗 US 的方法有很多种，包括反复扩张、支架、微创重建手术以及尿流改道或肾切除术。放置输尿管支架是一种很好的微创选择，但存在许多局限性，如支架迁移、黏膜内生长、结痂和支架阻塞。我们的研究目的是评估新型自扩张、大口径输尿管支架（Allium（®））的安全性和疗效。
在 2005 年至 2011 年期间，为 40 名患者的 49 个肾脏单位（49 个单位）插入了 49 个支架，平均留置时间为 17 个月（范围 1-63 个月）。
7 名（14.2%）患者出现支架迁移，需要取出支架。只有一个支架堵塞。在 8 个肾脏单位中，支架按计划取出，随访期间未发现再梗阻。28 名患者目前有一个通畅的支架。
Allium 支架为长期的内部输尿管引流提供了一个有吸引力的解决方案。其设计允许良好的固定，防止管腔内生长，并具有快速分解的能力，便于极容易地取出。
