Mohd Isa M F, Mohamed Ashraf Md Mohamed Ashraf Md, Yusof M R, Faiz N G, Siti Rahmah H I Merican Siti Rahmah H I Merican
Urology unit, Department of Surgery, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia.
Department of Surgery, Hospital Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia.
Urologiia. 2023 May(2):118-120.
For the past two decades urethral stenting became more popular for treatment of urethral stricture. However, urethral stents still not widely used in view of good outcome from urethroplasty surgery. The MemokathTM stent is the most popular in this field. It is manufactured from a biocompatible alloy of nickel and titanium. Most of the studies have been limited to single stent insertion, and no studies done for double stents insertion. An 81-year-old man with history of multiple anterior urethral strictures since 2013. He underwent internal urethrotomy in the same year but failed and was on urinary catheter since then. The MemokathTM 044TW was the option due to patient has multiple comorbidities. The micturating cystourethrogram (MCUG) and ascending urethrogram showed multiple anterior urethral strictures. He underwent direct visual internal urethrotomy and two MemokathTM stents inserted in the whole length of urethral. However, one year after procedure, he had recurrent lower urinary tract symptoms and ultimately developed acute urinary retention (AUR). Patients stents were removed endoscopically. During endoscopic removal, he had encrustation of both stents that causing obstructive symptoms. He is under our follow-up with no recurrent urinary retention or urosepsis with satisfactory uroflowmetry. Stent encrustation is known to be a common late complication of urethral stents. Stent encrustation should be suspected if patient comes with obstructive symptoms. Endoscopic is shown to be the best method to detect the cause of obstructed stent.
在过去二十年中,尿道支架置入术在治疗尿道狭窄方面变得越来越普遍。然而,鉴于尿道成形术手术效果良好,尿道支架仍未得到广泛应用。MemokathTM支架是该领域最受欢迎的。它由镍钛生物相容性合金制成。大多数研究仅限于单次支架置入,尚未进行双支架置入的研究。一名81岁男性,自2013年起患有多处前尿道狭窄。同年他接受了尿道内切开术,但失败了,此后一直留置导尿管。由于患者有多种合并症,选择了MemokathTM 044TW支架。排尿性膀胱尿道造影(MCUG)和逆行尿道造影显示多处前尿道狭窄。他接受了直视下尿道内切开术,并在尿道全长置入了两个MemokathTM支架。然而,术后一年,他出现了复发性下尿路症状,最终发展为急性尿潴留(AUR)。患者的支架通过内镜取出。在内镜取出过程中,他的两个支架都有结壳,导致梗阻症状。他一直在我们的随访中,没有复发性尿潴留或尿脓毒症,尿流率测量结果令人满意。已知支架结壳是尿道支架常见的晚期并发症。如果患者出现梗阻症状,应怀疑支架结壳。内镜检查被证明是检测梗阻支架原因的最佳方法。