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      Transurethral resection of the prostate stricture management

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          Abstract

          For more than nine decades, transurethral resection of the prostate remains the gold standard for the surgical treatment of lower urinary tract symptoms due to benign prostatic obstruction. The occurrence of urethral strictures after transurethral resection of the prostate is one of the major late complications and has been reported as the leading cause of iatrogenic urethral strictures in patients older than 45 years who underwent urethroplasty. Although several postulations have been proposed to explain the urethral stricture after transurethral resection of the prostate, the exact etiology of urethral stricture after TURP is still controversial. Suggested etiological factors of urethral stricture formation after transurethral resection of the prostate include infection, mechanical trauma, prolonged indwelling catheter time, use of local anesthesia, and electrical injury by a stray current. One single treatment option is not appropriate for all stricture types. The management of urethral stricture following transurethral resection of the prostate includes minimally invasive endoscopic methods, including urethral dilation and direct visual incision, or open surgical procedures with varying urethroplasty techniques. Although scientific studies focusing on urethral strictures after transurethral resection of the prostate are relatively limited and sparse, we can apply the principles of urethral stricture management before making decisions on individual stricture treatment.

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          Most cited references41

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          Etiology of urethral stricture disease in the 21st century.

          We determined the current etiology of urethral stricture disease in the developed world and whether there are any differences in etiology by patient age and stricture site. Between January 2001 and August 2007 we prospectively collected a database on 268 male patients with urethral stricture disease who underwent urethroplasty at a referral center. The database was analyzed for possible cause of stricture and for previous interventions. Subanalysis was done for stricture etiology by patient age and stricture site. The most important causes were idiopathy, transurethral resection, urethral catheterization, pelvic fracture and hypospadias surgery. Overall iatrogenic causes (transurethral resection, urethral catheterization, cystoscopy, prostatectomy, brachytherapy and hypospadias surgery) were the etiology in 45.5% of stricture cases. In patients younger than 45 years the main causes were idiopathy, hypospadias surgery and pelvic fracture. In patients older than 45 years the main causes were transurethral resection and idiopathy. In cases of penile urethra hypospadias surgery idiopathic stricture, urethral catheterization and lichen sclerosus were the main causes, while in the bulbar urethra idiopathic strictures were most prevalent, followed by strictures due to transurethral resection. The main cause of multifocal/panurethral anterior stricture disease was urethral catheterization, while pelvic fracture was the main cause of posterior urethral strictures. Of strictures treated with urethroplasty today iatrogenic causes account for about half of the urethral stricture cases in the developed world. In about 1 of 3 cases no obvious cause could be identified. The etiology is significantly different in younger vs older patients and among stricture sites.
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            Treatment of male urethral strictures: is repeated dilation or internal urethrotomy useful?

            We evaluate the efficacy of repeated dilation or urethrotomy as treatment of male urethral strictures. Between January 1991 and January 1994, 210 men with proved urethral strictures were prospectively randomized to undergo filiform dilation (106) or internal urethrotomy (104). Followup was scheduled at 3, 6, 9, 12, 24, 36 and 48 months. Dilation or internal urethrotomy was repeated at the first and second stricture recurrence. The Kaplan-Meier method was used to estimate survivor function for the treatment methods (survival time being the time to first stricture recurrence) and the log rank test was used to compare the efficacy of different treatments. Followup (mean 24 months, range 2 to 63) was available in 163 patients (78%). After a single dilation or urethrotomy not followed by re-stricturing at 3 months, the estimated stricture-free rate was 55 to 60% at 24 months and 50 to 60% at 48 months. After a second dilation or urethrotomy for stricture recurrence at 3 months the stricture-free rate was 30 to 50% at 24 months and 0 to 40% at 48 months. After a third dilation or urethrotomy for stricture recurrence at 3 and 6 months the stricture-free rate at 24 months was 0 (p <0.0001). Dilation and internal urethrotomy are useful in a select group (approximately 70% of all patients) who are stricture-free at 3 months, and of whom 50 to 60% will remain stricture-free up to 48 months. A second dilation or urethrotomy for early stricture recurrence (at 3 months) is of limited value in the short term (24 months) but of no value in the long term (48 months), whereas a third repeated dilation or urethrotomy is of no value.
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              Internal urethrotomy in the management of anterior urethral strictures: long-term followup.

              We evaluated the long-term results of internal urethrotomy for anterior urethral strictures. Between 1975 and 1990, 224 patients underwent internal urethrotomy for anterior urethral strictures. Median followup was 98 months (range 60 to 216). The recurrence rate after 1 urethrotomy was 68% overall, and 58% for bulbar, 84% for penile and 89% for penile bulbar urethral strictures. Repeated urethrotomies did not improve the success rate. Prognostic characteristics of bulbar urethral strictures associated with good results included single or primary strictures, length shorter than 10 mm. and caliber wider than 15F. Preoperative infection and etiology of the strictures did not correlate with results. Multiple urethrotomies achieve only temporary improvement and can be compared to repeated dilations. Alternative treatments should be considered for penile strictures and after failure of initial urethrotomy.
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                Author and article information

                Journal
                Asian J Androl
                Asian J. Androl
                AJA
                Asian Journal of Andrology
                Wolters Kluwer - Medknow (India )
                1008-682X
                1745-7262
                Mar-Apr 2020
                20 December 2019
                : 22
                : 2
                : 140-144
                Affiliations
                [1]Department of Urology, Beijing Jishuitan Hospital, The Fourth Medical College of Peking University, Beijing 100096, China
                Author notes
                Correspondence: Dr. LB Man ( manlibo@ 123456yeah.net )
                Article
                AJA-22-140
                10.4103/aja.aja_126_19
                7155786
                31898584
                d276963a-1892-4992-86ec-7c66df5143fc
                Copyright: ©The Author(s)(2019)

                This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.

                History
                : 01 March 2019
                : 29 September 2019
                Categories
                Invited Review

                benign prostatic hyperplasia,transurethral resection of the prostate,urethral stricture

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