良性前列腺增生（BPH）是一种常见的慢性泌尿系统疾病，影响约50％的60岁以上的男性。根据欧洲泌尿外科协会指南，BPH可以根据从保守管理开始的逐步方法进行治疗，药理学的方法，最后是手术。药物治疗和手术治疗都有副作用，影响射精和性功能以及有多种合并症的患者可能不被认为是手术合适的候选人.前列腺支架在门诊提供微创手术，可能在局部麻醉下.自1980年代以来，过去的支架包括永久性（上皮形成）或暂时性（非上皮形成）装置，像Uro-Lume（美国医疗系统，Minnetonka,MN,美国）和Memokath，或Memotherm(工程师和医生A/S，Denmark),和由自增强的聚-L-丙交酯或编织的聚乳酸-共-乙醇酸制成的生物可降解支架。然而，以前的支架显示出相当高的并发症率，其中疼痛，失禁,感染,支架移动或阻塞,以及可能导致支架过早移除的不完全降解。目前市场上可获得的支架是临时设备Allium三角前列腺尿道支架（AlliumUrologicalSolutions，凯撒利亚,以色列)和临时支架SPANNER(AbbeyMoorMedical，Inc.,帕克草原，MN,美国),可用于膀胱流出道梗阻的情况，术后,或急性尿潴留。研究显示了令人鼓舞的结果，在有效性和安全性方面，提高患者的生活质量和国际前列腺症状评分，但需要进行更长期的研究,以确定可能从其使用中获益的最合适的患者.目前正在研究较新的支架和镍钛诺装置，我们正在等待正在进行的临床试验的结果。
Benign prostatic hyperplasia (BPH) is a common chronic urologic condition affecting approximately 50% of men above the age of 60. As per European Association of Urology Guidelines, BPH can be treated according to a stepwise approach starting from a conservative management, a pharmacologic approach, and finally surgery. Both medical and surgical therapies have side effects, impacting on ejaculation and sexual function and patients with multiple comorbidities might not be considered surgically suitable candidates. Prostatic stents offer a minimally invasive procedures in an out-patient setting, possibly under local anaesthesia. Utilized since the 1980s, the past stents encompassed permanent (epithelializing) or temporary (non-epithelializing) devices, like the Uro-Lume (American Medical Systems, Minnetonka, MN, USA) and the Memokath, or Memotherm (Engineers & Doctors A/S, Denmark), and the biodegradable stents made of self-reinforced poly-L-lactide or braided poly lactic-co-glycolic acid. Previous stents however showed a quite high rate of complications among which pain, incontinence, infections, stent migration or blockage, and incomplete degradation that might lead to premature removal of stent. The stents currently available on the market instead are the temporary device Allium Triangular Prostatic Urethral Stent (Allium Urological Solutions, Caesarea, Israel) and the temporary stent SPANNER (AbbeyMoor Medical, Inc., Parkers Prairie, MN, USA), which might be used in case of bladder outflow obstruction, post-operatively, or for acute urinary retention. Studies showed encouraging results, in terms of effectiveness and safety improving patients\' quality of life and International Prostate Symptom Score, but longer-term studies are needed to identify the most suitable patients who might benefit from their use. Newer stents and nitinol devices are currently investigated, and we are waiting for the results of the ongoing clinical trials.
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