Perineal Urethrostomy for Complex Urethral Strictures: Long-Term Patient-Reported Outcomes from a Reconstructive Referral Center and a Scoping Literature Review.

PURPOSE: There is a paucity of long-term objective and patient-reported outcomes after definitive perineal urethrostomy for complex urethral strictures. Our objective is to determine comprehensive long-term success of perineal urethrostomy with our 15-year experience at a reconstructive referral center. MATERIALS AND METHODS: Patients who underwent perineal urethrostomy between 2009 and 2023 were identified. A comprehensive long-term follow-up was conducted, evaluating both objective outcomes (retreatment-free survival) and subjective outcomes through the use of validated questionnaires. Additionally, to provide further context for our findings, we conducted a scoping review of all studies reporting outcomes following perineal urethrostomy. RESULTS: Among 76 patients, 55% had iatrogenic strictures, with 82% previously undergoing urethral interventions. At a median follow-up of 55 months, retreatment-free survival was 84%, with 16% of patients experiencing perineal urethrostomy recurrent stenosis. Patient-reported outcomes revealed a generally satisfactory voiding function (Urethral Stricture Surgery patient-reported outcome measure Lower Urinary Tract Symptoms score) and continence (International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form), with median scores of 4 (range 0-24) and 0 (range 0-21), but with bimodal distributions of sexual function scores (median International Index of Erectile Function-Erectile Function domain: 3.5; median Male Sexual Health Questionnaire-Ejaculation Scale: 21). Treatment satisfaction was very high with a median International Consultation on Incontinence Questionnaire-Satisfaction outcome score of 21 (range 0-24). The scoping review revealed varying success rates ranging from 51% to 95%, highlighting difficulties in comparison due to variable success definitions and patient case mix. CONCLUSIONS: Perineal urethrostomy provides effective treatment for complex anterior urethral strictures, with high patient satisfaction, preserved continence function, and favorable voiding outcomes. It presents a viable option for older and comorbid patients, especially after thorough counseling on expected outcomes and potential risks.

Safety and efficacy of lasers compared to cold knife in direct visual internal urethrotomy: a systematic review and Meta-analysis.

Cold knife urethrotome was introduced in 1971 and it had an 80% success rate. New advancements in this field have shed light on the use of various lasers such as carbon dioxide, Nd: YAG, KTP, Argon, Ho: YAG, and excimer lasers. It has been observed that cold knife urethrotomy has a higher recurrence rate than laser urethrotomy, but the superiority of either treatment modality has not been established yet. Data were thoroughly searched through PubMed, Scopus, and clinicaltrials.gov. We also used clinicaltrials.gov for ongoing and published research. The data was analyzed via R studio version 2023.12.1 (oceanstorm). For dichotomous variables, Odds Ratio (OR) were used to pool data and standardized mean difference was used for continuous variables with 95% confidence intervals (CIs). A total of 14 studies including 1114 participants were included in this meta-analysis. The results of the combined analysis revealed significant relation with a mean difference of 0.99 (95% CI: 0.37; 1.62), and favored laser group. The overall results have shown the laser to have a significant favorable profile demonstrating a recurrence, Odds Ratio of 0.42 (95% CI:0.27;0.65). Patients with laser therapy had a lower risk of complication rate (OR 0.49, 95% Cl: 0.35; 0.67). All the findings obtained by the analysis in this study favour lasers significantly over the cold knife technique especially when mean Qmax, with recurrence and complications taken into account.

Outcomes of transecting versus non-transecting urethroplasty for bulbar urethral stricture: a meta-analysis.

OBJECTIVES: To assess outcomes of transecting vs non-transecting urethroplasty for bulbar urethral stricture in terms of stricture recurrence rate, sexual dysfunction, and patient-reported outcome measures (PROMs) related to lower urinary tract (LUT) function. METHODS: Electronic literature searches were conducted using PubMed, Cochrane Library, Web of Science and Embase databases. The studied population was limited to men with bulbar urethral stricture included in studies that compared outcomes after transecting and non-transecting urethroplasty. The main outcome appraised was the stricture recurrence rate. Additionally, the incidence of sexual dysfunction appraised in three domains (erectile function, penile complications, and ejaculatory function) and PROMs related to LUT function after transecting vs non-transecting urethroplasty were assessed. The pooled risk ratio (RR) respectively for stricture recurrence, erectile dysfunction and penile complications was calculated using a fixed-effect model with inverse variance method. RESULTS: In all, 694 studies were screened with 72 identified as relevant. Finally, 19 studies were suitable for analysis. The pooled difference between the transecting and non-transecting groups relating to stricture recurrence was not significant. Overall, the RR was 1.06 (95% confidence interval [CI] 0.82-1.36) and the 95% CI crossed the line of no effect (line RR = 1). Overall, the RR for erectile dysfunction was 0.73 (95% CI 0.49-1.08) and the 95% CI crossed the line of no effect (line RR = 1). Overall, the RR for penile complications was 0.47 (95% CI 0.28-0.76) and the 95% CI did not cross the line of no effect (line RR = 1). Hence, the risk of penile complications was significantly lower in the non-transecting group. CONCLUSIONS: Our analysis of available evidence indicates that both transecting and non-transecting urethroplasties, are equal in terms of the recurrence rate. On the other hand, non-transecting techniques are better in terms of sexual function, causing less penile complications.

Comparison of oral morbidity and mid-term efficacy of anterior urethroplasty using an autologous tissue-engineered graft (MukoCell®) versus native oral mucosa graft.

OBJECTIVE: Our study aimed to compare surgical success rate (SR) and oral morbidity of augmentation urethroplasty for anterior urethral strictures using autologous tissue-engineered oral mucosa graft (TEOMG) named MukoCell® versus native oral mucosa graft (NOMG). METHODS: We conducted a single-institution observational study on patients undergoing TEOMG and NOMG urethroplasty for anterior urethral strictures >2 cm in length from January 2016 to July 2020. SR, oral morbidity, and potential risk factors of recurrence were compared between groups were analyzed. A decrease of maximum uroflow rate < 15 mL/s or further instrumentation was considered a failure. RESULTS: Overall, TEOMG (n = 77) and NOMG (n = 76) groups had comparable SR (68.8% vs. 78.9%, p = 0.155) after a median follow-up of 52 (interquartile range [IQR] 45-60) months for TEOMG and 53.5 (IQR 43-58) months for NOMG. Subgroup analysis revealed comparable SR according to surgical technique, stricture localization, and length. Only following repetitive urethral dilatations, TEOMG achieved lower SR (31.3% vs. 81.3%, p = 0.003). Surgical time was significantly shorter by TEOMG use (median 104 vs. 182 min, p < 0.001). Oral morbidity and the associated "burden" in patients' quality of life were significantly less at 3 weeks following the biopsy required for TEOMG manufacture, compared to NOMG harvesting and totally absent at 6 and 12 months postoperatively. CONCLUSIONS: The SR of TEOMG urethroplasty appeared to be comparable to NOMG at a mid-term follow-up but taking into account the uneven distribution of stricture site and the surgical techniques used in both groups. Surgical time was significantly shortened, since no intraoperative mucosa harvesting was required, and oral complications were diminished through the preoperative biopsy for MukoCell® manufacture.

Transurethral reconstruction of fossa navicularis strictures with dorsal inlay buccal mucosa graft urethroplasty.

PURPOSE: To describe a single stage, glans-sparing urethroplasty technique for fossa navicularis strictures using a transurethral dorsal inlay buccal mucosa graft. METHODS: We conducted a retrospective review of a prospectively maintained urethral stricture database to identify all fossa navicularis strictures reconstructed with a single stage, transurethral dorsal inlay buccal mucosa graft urethroplasty (5/2015-6/2020). Primary outcomes were anatomic success, defined as the ability to pass a 17 Fr flexible cystoscope, and functional success, defined as the lack of obstructive voiding symptoms and no need for further procedures. Secondary outcomes were postoperative complications and patient satisfaction. RESULTS: Sixteen patients were included. Mean age was 63.1 years (43.9-75.6) and mean stricture length was 1.7 cm (1.4-2.0). Stricture etiology included internal trauma (62.5%), idiopathic (25.0%), and lichen sclerosus (12.5%). Prior endoscopic procedures were done in 75% of patients. Over a median follow-up of 28.8 months (IQR 17.6-38.0), anatomic success was 15/16 (93.8%) and functional success was 16/16 (100%). The single anatomic recurrence was at 4.2 months postoperatively. No additional procedures were required. Urinary tract infection occurred in 25% (4/16). There were no instances of de novo erectile dysfunction, chordee, or wound infection. All patients would recommend urethroplasty to others and all patients were either very satisfied (83.3%) or satisfied (16.7%) with the procedure. Penile sensitivity was unchanged in 83.3%, increased in 8.3% and decreased in 8.3%. CONCLUSION: Transurethral dorsal inlay buccal mucosa graft urethroplasty is a viable option for reconstruction of fossa navicularis strictures that avoids splitting the glans and results in excellent cosmesis.

Urethral duplication in an adult male: anatomic variants and operative approach to reconstruction.

Duplicated anterior urethras are a rare congenital anomaly that is exceedingly uncommon among adult patients, as surgical correction is often completed during childhood. We present the case of a 33-year-old man with uncorrected duplicated anterior urethras and urinary retention due to severe urethral stricture disease involving both of his uncorrected duplicated anterior urethras. This report highlights an operative management strategy for reconstruction to create a single, unobstructed urethra that terminates in an orthotopic meatus. Further, we provide an overview of the anatomic variants of urethral duplication.

Classification systems for anterior urethral stricture disease in men: a systematic review.

OBJECTIVE: To identify and explore the various classification systems that have been proposed for anterior urethral stricture disease (AUSD) and to identify the advantages and disadvantages of each. METHODS: A comprehensive systematic review was conducted in MEDLINE, EMBASE, SCOPUS and COCHRANE databases with a search strategy created appropriately. Titles and abstracts of search results were screened by two authors and selected for full-text review. Studies exploring urethral stricture classification, clinical scoring or staging systems used in men over the age of 18 with benign anterior urethral stricture disease were included. RESULTS: The search identified 3113 articles, of which 10 were selected for inclusion after scrutiny. Four classification systems were identified. These include ULTRA score, urethral stricture score, cystoscopy-based staging system and Gombe Urethrographic score. These were based on various modalities, including cystoscopy, retrograde urethrogram (RUG) and sonourethrogram (SUG). From the scoring systems identified, the urethral stricture scoring system has multiple external validation studies and is predictive of operative complexity, operative time, recurrence and postoperative complications. CONCLUSIONS: Several classification systems have been proposed for AUSD. Each has its advantages and disadvantages. The urethral stricture score has been externally validated and shown to been predictive of surgical outcomes and recurrence. There are no scores that incorporate patient-related outcome measures (PROMs). Many classification systems have yet to provide sufficient external validation. Further external validation studies are needed before the general adoption of a particular system.

Buccal mucosal graft urethroplasty for anterior urethral stricture, experience from a low-income country.

BACKGROUND/PURPOSE: This study was conducted to present our experience in urethral mucosal graft urethroplasty to repair urethral stricture, as the first experience in our context. METHODS: This is a prospective hospital-based study that had been designed to review management outcomes of buccal mucosal graft urethroplasty for anterior urethral stricture from January 2017 to January 2019. RESULTS: The total number of involved patients was 60. The success rate was found to be 90% (n = 54), while 6 (10%) had a recurrence of stricture. Pain and pain combined bleeding from internal suture lines were the only early complication encountered in 50 (83.3%) and 2 (3.3%) patients, respectively. late complications occurred as follows 14 (23.3%) patients had UTI, 12 (20%) had wound infections, 8 (13.3%) had changes in ejaculation, and decrease in intensity of orgasm, and 6 (10%) had erectile dysfunction. One of the long-term complications was graft diverticulum in one case and was treated conservatively (in ventral on lay BMG). CONCLUSION: Improvement of the service in limited resources countries like Sudan and was reflected in the excellent outcome of BMG urethroplasty as treatment of anterior urethral stricture (success rate 90%).

Safety and mid-term surgical results of anterior urethroplasty with the tissue-engineered oral mucosa graft MukoCell® : A single-center experience.

OBJECTIVE: To assess the mid-term efficacy and safety of anterior urethroplasty using an autologous tissue-engineered oral mucosa graft (MukoCell® ). METHODS: The data of 77 patients with anterior urethral strictures undergoing treatment with MukoCell® at a tertiary center from June 2016 to May 2019 were analyzed. Patients' characteristics, pre- and postoperative diagnostics, perioperative complications, and follow-up data were obtained. The overall stricture-free survival, outcomes of the different surgical techniques, stricture localizations, stricture length, early complications of the procedure and risk factors of recurrence were assessed. RESULTS: The median follow-up period was 38 months (interquartile range 31-46). The overall recurrence-free rate of anterior urethroplasty using MukoCell® was 68.8%, 24 patients (31.2%) developed a recurrence of the stricture. The stricture recurrences were observed at a median of 7 months (interquartile range 3-13) only in patients with at least one previous surgery or repeated dilatations in their medical history. No oral-urethral adverse events related to the use of MukoCell® were observed, except for a urethrocutaneous fistula (1.3%) requiring reoperation. CONCLUSIONS: Anterior one-stage urethroplasty using MukoCell® showed in our hands a mid-term success rate of up to 68.8% without significant adverse events after a median follow-up period of 38 months. This procedure might be an alternative option for long-segment urethral reconstruction.

The Clinical Effects of Utilizing Allogeneic Acellular Dermal Matrix in the Surgical Therapy of Anterior Urethral Stricture.

OBJECTIVE: The aim of this study was to estimate the clinical effects of allogeneic acellular dermal matrix (ADM) in the surgical therapy of anterior urethral stricture (AUS). METHODS: We retrospectively collected the clinical data of 49 patients with AUS who underwent urethral repair surgery with ADM in the Department of Urology of the Peking University People's Hospital, and in the First Affiliated Hospital of the People's Liberation Army, from September 2015 to January 2019. The changes in urine flow rate and conditions of urethral mucosal coverage were observed as well as complications and outcomes, and statistical analysis was performed. RESULTS: The average maximum urine flow rates at the 1st, 6th, and 12th month post-surgery were 16.3 ± 1.5, 15.0 ± 1.9, and 14.6 ± 2.1 mL/s, respectively. These values were significantly higher than the preoperative maximum urine flow rate, 1.3 ± 0.5 mL/s (p < 0.05). Cystoscopy was performed in 11 patients 12 months after surgery, with microscopic assessment revealing good urethral epithelial mucosal coverage. Only 2 patients developed infection 2-4 weeks after surgery, while 7 patients developed noninfective urethral restricture 6-10 months after surgery and 1 patient developed urinary fistula 5 months after surgery. All of these statuses improved after receiving appropriate treatment. CONCLUSIONS: Use of ADM represents a new option for the surgical management of AUS repair and reconstruction, with positive clinical effects. In addition, it has the advantages of convenient for operation procedures and access, with no need for additional sampling surgery.

Experience with One-Stage Repair of Urethral Strictures Using the Augmented Anastomotic Repair Technique.

INTRODUCTION: We report the results of augmented anastomotic repair (AAR) in the treatment of anterior urethral strictures. MATERIAL AND METHODS: In this retrospective study, we evaluated 71 consecutive patients who had undergone AAR between June 2004 and June 2013. Medical records were reviewed to identify early postoperative complications based on the Clavien-Dindo classification (CDC). Self-developed standardized questionnaires sent to the patients and referring urologists were used to collect data on late complications (>90) days. Stricture recurrence (SR) was defined as any postoperative endoscopic or open surgical intervention on the urethra. The influence of patient demographics, stricture characteristics, and operative procedure performed on the occurrence of SR was analyzed. RESULTS: Early postoperative complications were rare events (11.3%) with only one severe CDC complication. Late complications were reported in 46.5% cases. At a median follow-up of 17 months (range 3-114 months), however, 64 patients had no evidence of SR and required no further intervention, giving an overall success rate of 90.1%. Seven patients with SR had a higher body mass index, were older, and had been operated on by less experienced surgeon(s). Most SRs occurred within the first year after surgery. CONCLUSIONS: AAR was an effective and safe operative technique that allowed one-stage repair in our patients with anterior urethral strictures who needed resection of the scarred urethra and otherwise were not suitable for primary anastomosis or simple substitution urethroplasty.

URETHROPLASTY FOR COMPLICATED ANTERIOR URETHRAL STRICTURES.

(Objectives) To compare efficacy and outcome of urethroplasty for complicated anterior urethral strictures. (Methods) Twelve patients, included 3 boys, with anterior urethral stricture underwent urethroplasty after the failure of either urethral dilatation or internal urethrotomy. We evaluated pre- and post-operative Q max and surgical outcome. (Results) Four patients were treated with end-to-end anastomosis, included a case of bulbar urethral elongation simultaneously, one patient was treated with augmented anastomotic urethroplasty, three patients were treated with onlay urethroplasty with prepucial flap, one patient was treated with tubed urethroplasty with prepucial flap (Ducket procedure) and three patients were treated with onlay urethroplasty with buccal mucosal graft. Postoperative Qmax improved in all patients without major complications and recurrence during follow-up periods ranging from 17 to 102 months (mean 55 months). (Conclusions) Urethroplasty is an effective therapeutic procedure for complicated anterior urethral stricture.

[IPSS-QOL questionnaire in assessing symptoms and quality of life in patients with anterior urethral stricture].

RELEVANCE: The IPSS-QOL questionnaire is frequently used to assess symptoms and quality of life of men with urethral strictures. However, the psychometric properties of the questionnaire in assessing these patients have not been evaluated. AIM: To test the psychometric properties of the IPSS-QoL questionnaire in assessing patients with anterior urethral strictures. MATERIAL AND METHODS: Thirty five men with anterior urethral strictures self-completed the IPSS-QoL questionnaire. The reliability of the questionnaire was estimated by computing Cronbachs coefficient and the "point-scale" correlation coefficients. Validity was assessed by the "external criteria" - the correlations between the questionnaire scores and objective indicators - maximum urinary flow rate (Qmax) and residual urine volume (Ures), between QoL scores and index values and EQ-5D scores using a VAS rating scale. RESULTS: The content validity of the IPSS-QoL was assessed by experts and patients: the storage symptoms were found insignificant for patients with anterior urethral stricture, while the symptoms of primary importance (post-micturition dribbling) were not covered. Cronbachs coefficient of reliability was 0.65 (0.55-0.69 with one of the questions removed), i.e. it was below the generally accepted threshold of 0.7. The "point-scale" correlation coefficients ranged from 0.146 to 0.585; for 2 of the 7 questions they were lower, than the conventional threshold of 0.2, showing the internal inconsistencies of the questionnaire. The construct validity assessment showed no correlation between the questionnaire scores and objective indicators Qmax (R=0.178, p=0.306), Ures (R=-0.074, p=0.673). Correlations between QoL scores and index values and EQ-5D scores on the VAS were weak and statistically insignificant: R=-0.26, p=0.18 and R=-0.21, p=0.27, respectively. CONCLUSION: IPSS-QoL questionnaire in assessing men with anterior urethral stricture does not have sufficient reliability and validity. Its design does not allow for adequate assessment of all the symptoms, reliability indices are unsatisfactory, the questionnaire scores do not correlate with objective indicators. This questionnaire cannot be recommended for evaluating health status and quality of life of this category of patients.

Follow-up and histocompatibility observation of urethral reconstruction with different materials.

OBJECTIVE: Our objective is to observe the long-term surgical results of urethral reconstruction using either pedicled penile flaps or lingual mucosa grafts. We also assess the histocompatibility of the reconstructed urethra. MATERIALS AND METHODS: Clinical data of patients with anterior urethral stenosis undergoing urethra reconstruction by applying different materials were collected from 2014 to 2022 in the Second Hospital of Hebei Medical University. We assessed their efficacy and the occurrence of complications. Patients who required reoperation due to complications were selected. Sections of the reconstructed urethra created with various materials were excised during repair procedures. The excised tissues underwent hematoxylin-eosin staining and immunohistochemistry. Comparison with the original histological morphology was conducted to evaluate histocompatibility. RESULTS: 42 of the 55 patients were cured which showed a surgical success rate of 76.36%. The success rate of urethra reconstruction surgery utilizing lingual mucosa is 71.43% and that of surgeries using pedicled penis flaps is 79.41%. The long-term prognosis of the two groups is similar (P > 0.05). Observations show that the histological morphology of the original epithelium gradually disappeared, leading to adaptive changes to the urinary environment with favorable histocompatibility. CONCLUSION: The application of lingual mucosal and pedicled penis flaps for urethral reconstruction both have a high surgical success rate. The long-term follow-up results are positive. Both methods are viable for urethral reconstruction and exhibit favorable histocompatibility.

Safety of Xiaflex® (Collagenase Clostridium histolyticum) Treatment for Adult Anterior Urethral Stricture Disease.

Male urethral stricture disease is highly prevalent and difficult to treat due to potential complications. Minimally invasive treatments tend to have high recurrence rates, keeping urethroplasty as the gold standard. Collagenase Clostridium histolyticum (CCH) has been used in humans to treat fibrosis in a minimally invasive manner. Herein, we present the preliminary results from treatments of three males with urethral stricture as a feasibility and safety evaluation of the first-in-human CCH treatment for male urethral stricture disease.

Factors to Consider in Augmentation Urethroplasty with Oral Mucosa Graft or Penile Skin Flap for Anterior Urethral Stricture: A Systematic Review and Meta-analysis.

Context: Oral mucosa graft (OMG) and penile skin flap (PSF) are common substitutions in urethroplasty; however, the recommended substitution for anterior urethral strictures remains uncertain. Objective: To compare the efficacy of OMG and PSF in anterior urethral strictures in terms of success rate and prevalence of postvoid dribbling based on current studies. Evidence acquisition: A systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) and registered at PROSPERO (ID: CRD42022313879). All publications until March 1, 2022, were searched in the PubMed, EMBASE, and Cochrane Library databases without any restriction. Studies that focused on patients with anterior urethral strictures undergoing single-stage augmentation urethroplasty with OMG and PSF, and reported comparable success rates between the two substitutions were included. Evidence synthesis: Thirteen studies involving a total of 1216 patients were included in the screening procedures, and 12 studies were eventually included in the meta-analysis. No significant difference in success rates was identified between OMG and PSF (odds ratio [OR]: 1.41, 95% confidence interval [CI]: 0.96-2.07, p = 0.08). No significant difference was observed in the comparison of success rates in penile urethral strictures (OR: 0.95, 95% CI: 0.53-1.70, p = 0.86) and in the comparison of postvoid dribbling (OR: 0.59, 95% CI: 0.31-1.11, p = 0.10). However, a subgroup analysis suggested that OMG had a higher success rate than PSF in studies with the top 50% sample size (six studies, OR: 1.678, 95% CI: 1.055-2.668, p = 0.029) and the top 50% follow-up period (five studies, OR: 2.279, 95% CI: 1.193-4.352, p = 0.013). Conclusions: OMG provides the same success rate and postvoid dribbling as PSF. However, based on the existing evidence, OMG is more likely to perform better in a cohort with long-term follow-up and a relatively large sample size. More studies on the two substitutions are necessary to evaluate the factors of urethroplasty success rate, performance of substitutions in penile urethral strictures, and indicators of quality of life. Patient summary: In this research, we compared the outcomes of oral mucosa graft (OMG) and penile skin flap for urethroplasty in anterior urethral stricture patients in 13 studies. We found that these were similar in terms of success rate and postvoid dribbling. However, OMG could probably provide a higher success rate when the studies had more patients or a longer follow-up period.

Lichen sclerosis-induced long segment anterior urethral stricture: The early outcome of one-stage repair using dorsolateral onlay buccal mucosa graft.

BACKGROUND: Substitution urethroplasty using buccal mucosal grafts can be performed by several approaches including ventral onlay graft, dorsal onlay graft, or ventral urethrotomy with dorsal inlay graft. Our study aims to evaluate the surgical outcome of dorsolateral buccal mucosal graft for long segment anterior urethral stricture >6 cm in patients with Lichen sclerosus (LS). METHODS: A retrospective study included patients who underwent repair for long segment anterior urethral stricture >6 cm due to LS between January 2013 and April 2019. All patients were followed-up at 3, 6, 9, and 12 months postoperatively and then yearly by clinical symptoms, uroflowmetry, and calculation of post-void residual urine volume. Retrograde urethrogram was requested for patients with voiding symptoms or decreased maximum flow rate. Stricture recurrence that required subsequent urethrotomy or urethroplasty was considered failure. The success rate and surgical complications were collected and analyzed. RESULTS: Thirty patients were identified. The median age (range) was 39 (25-61) years and a median (range) stricture length was 8 (6-14) cm. Most of postoperative complications were of minor degree. The success rate at median follow-up of 15 (12-24) months was 86.5%. The median maximum flow rate increased significantly from 6 (2-11) ml/s preoperatively to 18 (range: 6-23) ml/s at the 6th month (p value < 0.001). CONCLUSION: Dorsolateral buccal mucosal grafts urethroplasty for long anterior urethral stricture caused by LS has a high success rate and low risk of complications including stricture recurrence.

Prospective study of de novo sexual dysfunction after anterior urethroplasty: Causative factors, incidence, and recovery of function - A single-center experience.

OBJECTIVES: The objectives of this study were to evaluate the effect of single-stage anterior urethroplasty on sexual function by considering age, stricture length, location, and different surgical techniques. Incidence of postoperative sexual dysfunction (SD) and probability of recovery were also highlighted. MATERIALS AND METHODS: A total of 115 patients undergoing anterior urethroplasty from February 2016 to June 2020 were evaluated prospectively. Patients were categorized on the basis of age, location, length of stricture as well as surgical techniques. We evaluated three domains of sexual function (erectile, orgasmic, and overall satisfaction) using the International Index of Erectile Function (IIEF) preoperatively and then after 3 months and 6 months postoperatively in follow-up. Pre- and postoperative IIEF values were compared. RESULTS: The mean age was 41.7 ± 13.9 years. There was a significant decrease in postoperative IIEF score from the preoperative value in older patients (>40 years) along with poor recovery at the 6th month as compared to patients of younger age group (≤40 years). However, there was a significant reduction of sexual function postoperatively in case of longer stricture segment, panurethral stricture, bulbar urethral stricture, dorsal buccal mucosal urethroplasty, and excision-primary anastomosis technique in univariate analysis, but on multivariate analysis, only age was proved to be an independent predictor of de novo SD which was found in a total of 28 patients (24.3%). CONCLUSION: Overall, anterior urethroplasty does not influence postoperative sexual function, whereas only older patients have a poor outcome. Most of the younger patients recover completely by 6 months.

Concomitant anterior urethral valve, distal urethral diverticulum and posterior urethral valve with five-year follow up; A case report and literature review.

Concomitant anterior urethral valve and diverticulum (AUVD) and posterior urethral valve (PUV) is an extremely uncommon congenital anomaly that causes infra-vesical obstruction. We present our experience with one case of concomitant AUVD and PUV as well as the related literature review. Early diagnosis and successful management of these anomalies can improve renal function and prevents recurrent urinary tract infections and subsequent renal failure.

Oral Mucosa vs. Penile Skin Flap in Substitution Urethroplasty for Anterior Urethral Strictures: A Systematic Review and Meta-Analysis.

Background: The purpose of this study is to compare the effectiveness and safety of oral mucosa and penile skin flaps in the treatment of anterior urethral stricture. Methods: This meta-analysis was carried out according to the principle of preferred reporting items for systematic reviews and meta-analysis (PRISMA) and registered at PROSPERO (CRD42021277688). The Cochrane Library, PubMed, Embase, CKNI databases were searched and reviewed up to Sep 2021. Quality evaluation was performed with Newcastle-Ottawa Scale (NOS) system for non-randomized studies and Cochrane stools for randomized studies. Data synthesis was conducted with RevMan 5.4 software (Cochrane) and a Stata 15.0 environment (Stata Corpor, College Station, TX, USA). Results: After the research screening, eight studies (comprising 445 patients) were finally included in the quantitative analysis. In the success rate comparison, there was no significant difference between oral mucosa and penile skin flaps (oral mucosa vs. penile skin flap, Mantel-Haenszel statistic [M-H] fixed model, OR: 0.80, 95% CI: 0.47-1.34, P = 0.39). There was no significant difference in the post-operative complication comparison (oral mucosa vs. penile skin flap, Mantel-Haenszel statistic [M-H] fixed model, OR: 0.68, 95% CI: 0.40-1.16, P = 0.15). However, considering that the site of oral mucosa is far from the anterior urethra, it may have advantages in operation time through simultaneous operations (oral mucosa vs. penile skin flap, MD: -40.05, 95% CI: -79.42, -0.68, P = 0.046). Conclusion: When the oral mucosal graft was used in the anterior urethra urethroplasty, it had a similar success rate and post-operative complication rate, and oral mucosa substitution had a shorter operation time. This evidence-based medical research further supports the view that oral mucosa is the preferred substitution material for the anterior urethra urethroplasty.