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Klein R, Vasan R, Guercio C, Rusilko P. Minimally Invasive Management of Posterior Urethral Stricture/Stenosis with DVIU and Mitomycin C Injection. Urology 2024; 183:e317-e319. [PMID: 37866650 DOI: 10.1016/j.urology.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/08/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023]
Abstract
OBJECTIVE To demonstrate a technique for minimally invasive endoscopic management of posterior urethral strictures, including those at the bladder neck and vesicourethral anastomosis. METHODS Herein, we have included endoscopic video footage from 3 patients with posterior urethral strictures, including 1 at the bladder neck, 1 at the vesicourethral anastomosis, and 1 in the bulbomembranous urethra. In each patient, we perform a direct visualization internal urethrotomy (DVIU) with incisions at the 5 and 7 o'clock positions to widen the urethral lumen, followed by injection of 2 mg mitomycin C (MMC) in a total volume of 5 mL sterile water. RESULTS Herein, we describe our technique for the endoscopic management of posterior urethral strictures, including those in the prostatic urethra and bladder neck. MMC injection, in conjunction with traditional DVIU, adds minimally to the complexity and length of the procedure but may substantially improve long-term surgical outcomes. CONCLUSION Bladder outlet obstruction due to stenosis or stricture of the posterior urethra is a common urologic diagnosis whose etiology can often be traced to prior urethral manipulation or iatrogenic trauma. While Americal Urological Assicuation (AUA) guidelines state that dilation or direct visualization internal urethrotomy (DVIU) should be offered for bulbar strictures measuring less than 2 cm in length, recent evidence suggests that DVIU with or without MMC injection may have utility in the management of bladder neck or vesicourethral anastomotic contractures. We have found that DVIU with subsequent MMC injection is a viable minimally invasive approach for the treatment of posterior urethral strictures. While more data are needed to better understand the long-term success rates of these procedures, this approach should be considered for patients with a bladder outlet obstruction secondary to a short stricture of the posterior urethra, bladder neck, or vesicourethral anastomosis.
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Affiliation(s)
- Roger Klein
- UPMC Department of Urology, Pittsburgh, Pittsburgh.
| | - Robin Vasan
- UPMC Department of Urology, Pittsburgh, Pittsburgh.
| | | | - Paul Rusilko
- UPMC Department of Urology, Pittsburgh, Pittsburgh; UPMC Department of Plastic Surgery, Pittsburgh, Pittsburgh.
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Nealon SW, Bhanvadia RR, Badkhshan S, Sanders SC, Hudak SJ, Morey AF. Transurethral Incisions for Bladder Neck Contracture: Comparable Results without Intralesional Injections. J Clin Med 2022; 11:4355. [PMID: 35955973 PMCID: PMC9369124 DOI: 10.3390/jcm11154355] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 11/17/2022] Open
Abstract
To present our 12-year experience using an endoscopic approach to manage bladder neck contracture (BNC) without adjunctive intralesional agents and compare it to published series not incorporating them, we retrospectively reviewed 123 patients treated for BNC from 2008 to 2020. All underwent 24 Fr balloon dilation followed by transurethral incision of BNC (TUIBNC) with deep incisions at 3 and 9 o’clock using a Collins knife without the use of intralesional injections. Success was defined as a patent bladder neck and 16 Fr cystoscope passage into the bladder two months later. Most with recurrent BNC underwent repeat TUIBNC. Success rates, demographics, and BNC characteristics were analyzed. The etiology of BNC in our cohort was most commonly radical prostatectomy with or without radiation (36/123, 29.3%, 40/123, 32.5%). Some had BNC treatment prior to referral (30/123, 24.4%). At 12-month follow-up, bladder neck patency was observed in 101/123 (82.1%) after one TUIBNC. An additional 15 patients (116/123, 94.3%) had success after two TUIBNCs. On univariate and multivariate analyses, ≥2 endoscopic treatments was the only factor associated with failure. TUIBNC via balloon dilation and deep bilateral incisions without the use of adjunctive intralesional injections has a high patency rate. History of two or more prior endoscopic procedures is associated with failure.
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Martins FE, Holm HV, Lumen N. Devastated Bladder Outlet in Pelvic Cancer Survivors: Issues on Surgical Reconstruction and Quality of Life. J Clin Med 2021; 10:4920. [PMID: 34768438 PMCID: PMC8584541 DOI: 10.3390/jcm10214920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/18/2021] [Accepted: 10/18/2021] [Indexed: 11/16/2022] Open
Abstract
Bladder outlet obstruction following treatment of pelvic cancer, predominantly prostate cancer, occurs in 1-8% of patients. The high incidence of prostate cancer combined with the long-life expectancy after treatment has increased concerns with cancer survivorship care. However, despite increased oncological cure rates, these adverse events do occur, compromising patients' quality of life. Non-traumatic obstruction of the posterior urethra and bladder neck include membranous and prostatic urethral stenosis and bladder neck stenosis (also known as contracture). The devastated bladder outlet can result from benign conditions, such as neurogenic dysfunction, trauma, iatrogenic causes, or more frequently from complications of oncologic treatment, such as prostate, bladder and rectum. Most posterior urethral stenoses may respond to endoluminal treatments such as dilatation, direct vision internal urethrotomy, and occasionally urethral stents. Although surgical reconstruction offers the best chance of durable success, these reconstructive options are fraught with severe complications and, therefore, are far from being ideal. In patients with prior RT, failed reconstruction, densely fibrotic and/or necrotic and calcified posterior urethra, refractory incontinence or severe comorbidities, reconstruction may not be either feasible or recommended. In these cases, urinary diversion with or without cystectomy is usually required. This review aims to discuss the diagnostic evaluation and treatment options for patients with bladder outlet obstruction with a special emphasis on patients unsuitable for reconstruction of the posterior urethra and requiring urinary diversion.
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Affiliation(s)
- Francisco E. Martins
- Department of Urology, School of Medicine, University of Lisbon, Hospital Santa Maria/CHULN, 1649-035 Lisbon, Portugal
| | | | - Nicolaas Lumen
- Department of Urology, Ghent University Hospital, 9000 Ghent, Belgium;
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Xu C, Zhu Z, Lin L, Lv T, Cai T, Lin J. Efficacy of Mitomycin C Combined with Direct Vision Internal Urethrotomy for Urethral Strictures: A Systematic Review and Meta-Analysis. Urol Int 2021; 107:344-357. [PMID: 34670219 DOI: 10.1159/000518977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 04/30/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND The high recurrence of a urethral stricture after direct vision internal urethrotomy (DVIU) has been a problem for years. Mitomycin C (MMC) is an excellent antifibrosis antigen that has been used in many fields, but its effect on a urethral stricture remains controversial. The purpose of this review was to investigate the effectiveness of MMC in reducing the recurrence rate of a urethral stricture after the first urethrotomy. METHODS Common databases were searched for publications prior to November 30, 2020. Randomized controlled and cohort trials were all included. Recurrence and success rates after the first urethrotomy of the posterior urethra were the main outcomes. Revman 5.3 was used for statistical analysis. Two evaluation systems, the Cochrane risk of bias tool and the Newcastle Ottawa Scale, were used to examine the risk of bias for RCTs and all studies. The quality of evidence was assessed by the Grading of Recommendations, Assessment, Development, and Evaluation standard. RESULTS Sixteen trials were included, the reporting quality of which was generally poor, and the evidence level was very low to moderate. The addition of MMC could significantly reduce the recurrence rate of urethral strictures (risk ratio [RR] = 0.42; 95% confidence interval [CI]: 0.26, 0.67; p = 0.0002; 9 trials; 550 participants). The results of the subgroup analysis suggested that the effect of MMC combined with DVIU was significant in short (≤2 cm) anterior urethral strictures (RR = 0.39; 95% CI: 0.20, 0.78; p = 0.008), >12-month follow-up (RR = 0.45; 95% CI: 0.26, 0.76; p = 0.003). It also increased the success rate of the first urethrotomy procedure for posterior urethral contracture (RR = 0.74; 95% CI: 0.65, 0.84; p < 0.00001; 7 trials; 342 participants). Low-dose local injection of MMC was the most commonly used method. CONCLUSION MMC combined with DVIU is a promising way to reduce the long-term recurrence rate of a short-segment anterior urethral stricture. It also increases the success rate of the first urethrotomy of the posterior urethra. However, more high-quality randomized controlled trials are needed.
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Affiliation(s)
- Chunru Xu
- Department of Urology, Peking University First Hospital, Beijing, China, .,Institute of Urology, Peking University, Beijing, China, .,National Urological Cancer Center, Beijing, China,
| | - Zhenpeng Zhu
- Department of Urology, Peking University First Hospital, Beijing, China.,Institute of Urology, Peking University, Beijing, China.,National Urological Cancer Center, Beijing, China
| | - Lanruo Lin
- College of Basic Medicine, Capital Medicine University, Beijing, China
| | - Tongde Lv
- Department of Urology, Peking University First Hospital, Beijing, China.,Institute of Urology, Peking University, Beijing, China.,National Urological Cancer Center, Beijing, China
| | - Tianyu Cai
- Department of Urology, Peking University First Hospital, Beijing, China.,Institute of Urology, Peking University, Beijing, China.,National Urological Cancer Center, Beijing, China
| | - Jian Lin
- Department of Urology, Peking University First Hospital, Beijing, China.,Institute of Urology, Peking University, Beijing, China.,National Urological Cancer Center, Beijing, China
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Yao HH, Sengupta S, Chee J. Incorporating intra-lesional injection of mitomycin C in the management algorithm for bladder neck contractures and vesicourethral anastomotic strictures. Journal of Clinical Urology 2020. [DOI: 10.1177/2051415820961901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective: This study aims to describe the experience of a single-surgeon series with the use of intra-lesional mitomycin C (MMC) in the treatment of bladder neck contracture (BNC) and vesicourethral anastomotic stenosis (VUAS). Patients and methods: From July 2014 to January 2019, patients who underwent bladder neck incision (BNI) and intra-lesional MMC injection performed by a single surgeon were included in this retrospective study. Clinico-pathological data were extracted from medical records. The primary outcome was recurrence rate following BNI and MMC injection. Results: Ten patients were included in the study. The median age was 68 years. The cause of BNC or VUAS was secondary to radical prostatectomy in eight patients and to endoscopic prostatectomy in two patients. The median follow-up was 16.4 months. The success rate was 70% after first treatment with BNI and MMC injection, and 80% after repeated treatment. There were no serious adverse events or complications related to the MMC injection. Conclusion: BNI and intra-lesional MMC injection is a minimally invasive treatment for refractory bladder neck contractures with a good success rate and minimal risk of side effects when a low dose of MMC is used. Further prospective multicentre study is warranted. Level of evidence: Level 4.
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Affiliation(s)
- Henry H Yao
- Department of Urology, Western Health, Melbourne, Australia
- Eastern Health Clinical School, Monash University, Melbourne, Australia
| | - Shomik Sengupta
- Eastern Health Clinical School, Monash University, Melbourne, Australia
| | - Justin Chee
- Department of Urology, Western Health, Melbourne, Australia
- Eastern Health Clinical School, Monash University, Melbourne, Australia
- MURAC Health, Melbourne, Australia
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Rozanski AT, Zhang LT, Holst DD, Copacino SA, Vanni AJ, Buckley JC. The Effect of Radiation Therapy on the Efficacy of Internal Urethrotomy With Intralesional Mitomycin C for Recurrent Vesicourethral Anastomotic Stenoses and Bladder Neck Contractures: A Multi-Institutional Experience. Urology 2020; 147:294-298. [PMID: 33035561 DOI: 10.1016/j.urology.2020.09.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/20/2020] [Accepted: 09/24/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To assess the efficacy, effect of radiotherapy, and complications of direct visual internal urethrotomy (DVIU) and intralesional mitomycin C (MMC) for recurrent bladder neck contracture/vesicourethral anastomotic stenosis (BNC/VUAS). METHODS Patients who underwent DVIU with intralesional MMC for recurrent BNC/VUAS between 2007 and 2019 at 2 institutions were included. Cold knife incisions were performed in a reproducible fashion followed by injection of 0.3-0.4 mg/mL MMC at each incision site. Those with evidence of complete urethral obliteration, stenosis of the entire posterior urethra, or <3 months follow-up were excluded. Success was defined as the ability to pass a 17-French cystoscope postoperatively without the need for catheterization or additional procedures. RESULTS Eighty-six patients were analyzed over a median follow-up of 21.1 months. Around 91% had at least 1 prior DVIU, 56% had at least 1 prior dilation, and 44% presented with an indwelling catheter or performed intermittent catheterization. Success was achieved in 65% after 1 procedure, an additional 18% after 2 procedures, and another 7% after 3 or more procedures (90% overall success rate). Nonradiated patients showed a higher overall success rate compared to radiated patients (94% vs 76%, P = 0.04). Of the 9 cystoscopic failures, 5 were asymptomatic and pursued observation. Only 2 (5%) patients with a history of catheterization required this postoperatively. Two patients underwent subsequent urinary diversion surgery. No long-term complications were seen. CONCLUSION DVIU with low-dose MMC remains a safe and effective BNC/VUAS treatment. A patent bladder neck was achieved in >90% of nonradiated patients and >75% of radiated patients.
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Affiliation(s)
| | | | - Daniel D Holst
- University of California San Diego School of Medicine, San Diego, CA
| | | | - Alex J Vanni
- Lahey Hospital and Medical Center, Burlington, MA
| | - Jill C Buckley
- University of California San Diego School of Medicine, San Diego, CA
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Fuller TW, Byrne ER, Buckley JC. Vesicourethral Anastomotic Stenosis after Prostate Cancer Treatment. Curr Bladder Dysfunct Rep 2019; 14:238-45. [DOI: 10.1007/s11884-019-00539-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
PURPOSE OF REVIEW This article discusses the incidence, evaluation, and treatment of bladder outlet obstruction from urethral stricture, vesicourethral anastomotic stricture, and bladder neck contracture following primary and salvage treatment of prostate cancer. RECENT FINDINGS Rates of stenosis after prostate cancer treatment appear similar across all primary treatment modalities including radical prostatectomy, radiation therapy, cryoablation, and high-intensity focused ultrasound in contemporary series. Urethral dilation and urethrotomy continue to report moderate patency rates. Urethroplasty achieves high patency rates even for long strictures, but more extensive reconstruction increases the risk of postoperative urinary incontinence. Recent AUA guidelines on urethral strictures provide new recommendations for management of these patients. All treatment options for prostate cancer carry a risk for bladder outlet obstruction, and intervention is often necessary to relieve long-lasting morbidity. Careful preoperative evaluation should be completed to assess location and extent of the stricture in order to choose optimal therapy. Endoscopic treatments, open reconstruction, and urinary diversion all play a role in relief of stenosis depending on stricture length, location, characteristics, and patient comorbidities.
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Affiliation(s)
- Brendan Michael Browne
- Department of Urology, Lahey Hospital and Medical Center, 41 Mall Road, Burlington, MA, 01805, USA
| | - Alex J Vanni
- Department of Urology, Lahey Hospital and Medical Center, 41 Mall Road, Burlington, MA, 01805, USA.
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Raheem OA, Khandwala YS, Hsieh T, Buckley JC. Review Article: Is There a Role for Antifibrotics in the Treatment of Urological Disease? A Systematic Review of the Literature. Urology Practice 2018; 5:31-38. [DOI: 10.1016/j.urpr.2016.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sourial MW, Richard PO, Bettez M, Jundi M, Tu LM. Mitomycin-C and urethral dilatation: A safe, effective, and minimally invasive procedure for recurrent vesicourethral anastomotic stenoses. Urol Oncol 2017; 35:672.e15-9. [DOI: 10.1016/j.urolonc.2017.07.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/30/2017] [Accepted: 07/31/2017] [Indexed: 11/17/2022]
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Rocco NR, Zuckerman JM. An update on best practice in the diagnosis and management of post-prostatectomy anastomotic strictures. Ther Adv Urol 2017; 9:99-110. [PMID: 28588647 PMCID: PMC5444622 DOI: 10.1177/1756287217701391] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 03/06/2017] [Indexed: 12/30/2022] Open
Abstract
Postprostatectomy vesicourethral anastomotic stenosis (VUAS) remains a challenging problem for both patient and urologist. Improved surgical techniques and perioperative identification and treatment of risk factors has led to a decline over the last several decades. High-level evidence to guide management is lacking, primarily relying on small retrospective studies and expert opinion. Endourologic therapies, including dilation and transurethral incision or resection with or without adjunct injection of scar modulators is considered first-line management. Recalcitrant VUAS requires surgical reconstruction of the vesicourethral anastomosis, and in poor surgical candidates, a chronic indwelling catheter or urinary diversion may be the only option. This review provides an update in the diagnosis and management of postprostatectomy VUAS.
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Affiliation(s)
| | - Jack M Zuckerman
- Naval Medical Center San Diego, 34800 Bob Wilson Drive, San Diego, CA 92134, USA
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Farrell MR, Lawrenz CW, Levine LA. Internal Urethrotomy With Intralesional Mitomycin C: An Effective Option for Endoscopic Management of Recurrent Bulbar and Bulbomembranous Urethral Strictures. Urology 2017; 110:223-227. [PMID: 28735714 DOI: 10.1016/j.urology.2017.07.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/08/2017] [Accepted: 07/13/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To describe our experience with direct visual internal urethrotomy (DVIU) and mitomycin C (MMC) for recurrent bulbar and bulbomembranous urethral strictures of radiation and non-radiation-induced etiologies. METHODS We reviewed our database of consecutive patients presenting to our tertiary care institution with recurrent bulbar and bulbomembranous urethral strictures who underwent DVIU with MMC from 2011 to 2016. Patients were stratified by radiation-induced strictures (RIS) vs non-RIS. Cold-knife incisions were made at 12-, 3-, and 9-o'clock positions followed by intralesional injection of 10 mL MMC (0.4 mg/mL) in 0.2-0.4 mL aliquots and 1 month of postoperative daily clean intermittent catheterization (CIC). RESULTS All 44 patients (RIS n = 18, non-RIS n = 26) failed prior endoscopic management or urethroplasty. Median stricture length was 2.0 cm (interquartile range [IQR] 1.0-2.5). Over a median follow-up of 25.8 months (IQR 12.9-47.2), 75.0% of patients (33/44) required no additional surgical intervention (RIS 12/18, 66.7%; non-RIS 21/26, 80.8%). Median time to stricture recurrence among those who recurred was 10.7 months (IQR 3.9-17.6; RIS 9.4 months, IQR 3.5-17.6; non-RIS 11.2 months, IQR 8.0-25.6). Four patients (RIS n = 2, non-RIS n = 2) elected to undergo urethroplasty for recurrence. A second DVIU with MMC was performed in the remaining recurrences (n = 7) with no further surgical intervention required in 37 of 40 of patients (92.5%) overall (RIS 14/16, 87.5%; non-RIS 23/24, 95.8%). No long-term complications were attributable to MMC. CONCLUSION DVIU with MMC and short-term CIC for recurrent, short, bulbar and bulbomembranous urethral strictures is a safe endoscopic modality with promising early results. This approach may be useful for patients who are suboptimal candidates for open reconstruction.
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Affiliation(s)
- M Ryan Farrell
- Department of Urology, Rush University Medical Center, Chicago, IL.
| | - Cedric W Lawrenz
- Department of Urology, Rush University Medical Center, Chicago, IL
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