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1.
BMC Surg ; 24(1): 146, 2024 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-38734618

RESUMO

OBJECTIVES: To retrospectively investigate and analyze the characteristics of male bulbar urethral strictures or occlusions resulting from straddle injuries caused by falling from heights and riding activities. METHODS: The study included 56 patients with a history of straddle injury, who were divided into two groups: the falling group (n = 29) and the riding group (n = 27). All patients underwent urethroscopy and X-ray urethrography, followed by urethrotomy and anastomotic procedure. Both urethral and suprapubic catheters were retained for one month postoperatively. Subsequent follow-up assessments were conducted within one month to one year after surgery. RESULTS: The clinical data of two groups were analyzed. The average ages were 40.1 ± 11.2 (falling group, aged 18-59) and 26.8 ± 4.4 (riding group, aged 19-35), P < 0.05. In the falling group, 21 cases (72.4%) had offspring, while in the riding group, only 3 cases (11.1%) had offspring, P < 0.05. The stricture segments in the falling group were predominantly located in the proximal part of the bulbar region (89.7%), whereas in the riding group they mainly found in the distal part (96.3%), P < 0.05. In terms of urethrography results, the average lengths of stricture segments were measured as 17.6 ± 2.8 mm and 15.5 ± 4.6 mm respectively, P < 0.05. During surgery, the average lengths of stricture segments were recorded as 19.0 ± 2.5 mm and 17.4 ± 6.1 mm, P > 0.05. In the falling group, 20 cases (69.0%) involved bulbocavernosus muscle injury, P < 0.05. In the riding group, 5 cases (18.5%) involved corpus cavernosum injury, P < 0.05. After one month of the operation, all cases were able to pass through the 16Fr urethroscope without any apparent urethral strictures or complications observed in urethrography results. The maximum urinary flow rate for all cases exceeded 15 ml/s. Two months and one year after the operation, all cases experienced smooth urinary flow and ejaculation without any disorders reported. 3 cases (10.3%) in the falling group and 7 cases (25.9%) in the riding group complained of urethral stretching pain during erection, P > 0.05. CONCLUSIONS: Male bulbar urethral strictures or occlusions resulting from straddle injuries associated with falling from heights and riding activities exhibit distinct characteristics, necessitating the development of a comprehensive surgical plan tailored to the specific features of each condition and the diverse age groups affected.


Assuntos
Estreitamento Uretral , Humanos , Masculino , Estreitamento Uretral/etiologia , Estreitamento Uretral/cirurgia , Adulto , Estudos Retrospectivos , Pessoa de Meia-Idade , Adolescente , Adulto Jovem , Acidentes por Quedas , Uretra/lesões
2.
Artigo em Inglês | MEDLINE | ID: mdl-38765540

RESUMO

Objective: To present a series of cases with our initial experience and short-term outcomes of a modified vaginal mucosal flap urethroplasty. Methods: Patients diagnosed with urethral stricture and operated by the same operative technique between January 2012 and January 2018 were followed for at least 6 months. Uroflowmetry and clinical outcomes were evaluated. Results: Nineteen patients were included with an average age of 56.4 years, mean preoperative Qmax of 5.3 ml/s, and PVR of 101.4 mL. After 6 months of the procedure, the mean Qmax improved to 14.7 mL/s (p<0.05), PVR decreased to 47.3 mL (p<0.05), and 84.2% of all patients reported improvement in clinical self-reported symptoms. There was an improvement in symptoms such as voiding effort in 84.2% of patients, weak stream (89.5%), and recurrent urinary tract infection (85.7%). The success rate (absence of symptoms and normal Qmax with no significant PVR) of the procedure was 84.2%. Conclusion: The described technique was considered effective for the treatment of female urethra stricture, with a high clinical success rate and an objective improvement of Qmax and decrease in PVR after 6 months of the procedure.


Assuntos
Uretra , Estreitamento Uretral , Humanos , Estreitamento Uretral/cirurgia , Feminino , Pessoa de Meia-Idade , Resultado do Tratamento , Uretra/cirurgia , Adulto , Idoso , Estudos Retrospectivos , Procedimentos Cirúrgicos Urológicos/métodos , Retalhos Cirúrgicos , Vagina/cirurgia
3.
Medicine (Baltimore) ; 103(18): e37524, 2024 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-38701298

RESUMO

PURPOSE: There is still controversy regarding the safety and efficacy of cold knife visual internal urethrotomy and laser incisions for the treatment of urethral stricture. This study aims to compare the results of postoperative long-term and short-term maximum urinary flow rates (Qmax), surgical time, postoperative complications, and 1-year recurrence rates between the cold knife and laser surgery. METHODS: We searched databases including Embase, PubMed, Cochrane, and Clinical Trials.gov to identify relevant literature published in English up to September 2023. We used Stata to compare various parameters. This study is registered in PROSPERO (CRD42023471634). Nine comparative experiments were conducted, involving a total of 659 participants. RESULTS: The laser group showed significantly better results compared to the cold knife group in terms of postoperative 12-month maximum urinary flow rate (mean differences [MD] 2.131; 95% [1.015, 3.249], P < .0001), postoperative bleeding (RR 0.277, 95% [0.079, 0.977], P = .046), and 1-year recurrence rate (RR 0.667, 95% [0.456, 0.976], P = .037). However, there were no significant differences in postoperative 6-month and 3-month Qmax, surgical time, urethral leakage complications, overall complications, and Visual Analog Scale (VAS) scores. CONCLUSION: The current study results suggest that laser urethral incision has greater advantages in the long-term (12 months), 1-year recurrence rate, and bleeding complications compared to cold knife urethral incision in the treatment of urethral stricture (<2 cm). Therefore, laser urethral incision may be a better choice for patients with urethral stricture.


Assuntos
Terapia a Laser , Uretra , Estreitamento Uretral , Estreitamento Uretral/cirurgia , Humanos , Terapia a Laser/métodos , Terapia a Laser/efeitos adversos , Uretra/cirurgia , Complicações Pós-Operatórias/epidemiologia , Resultado do Tratamento , Masculino , Recidiva , Duração da Cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
4.
World J Urol ; 42(1): 324, 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38748256

RESUMO

PURPOSE: To predict the post transurethral prostate resection(TURP) urethral stricture probability by applying different machine learning algorithms using the data obtained from preoperative blood parameters. METHODS: A retrospective analysis of data from patients who underwent bipolar-TURP encompassing patient characteristics, preoperative routine blood test outcomes, and post-surgery uroflowmetry were used to develop and educate machine learning models. Various metrics, such as F1 score, model accuracy, negative predictive value, positive predictive value, sensitivity, specificity, Youden Index, ROC AUC value, and confidence interval for each model, were used to assess the predictive performance of machine learning models for urethral stricture development. RESULTS: A total of 109 patients' data (55 patients without urethral stricture and 54 patients with urethral stricture) were included in the study after implementing strict inclusion and exclusion criteria. The preoperative Platelet Distribution Width, Mean Platelet Volume, Plateletcrit, Activated Partial Thromboplastin Time, and Prothrombin Time values were statistically meaningful between the two cohorts. After applying the data to the machine learning systems, the accuracy prediction scores for the diverse algorithms were as follows: decision trees (0.82), logistic regression (0.82), random forests (0.91), support vector machines (0.86), K-nearest neighbors (0.82), and naïve Bayes (0.77). CONCLUSION: Our machine learning models' accuracy in predicting the post-TURP urethral stricture probability has demonstrated significant success. Exploring prospective studies that integrate supplementary variables has the potential to enhance the precision and accuracy of machine learning models, consequently progressing their ability to predict post-TURP urethral stricture risk.


Assuntos
Algoritmos , Aprendizado de Máquina , Complicações Pós-Operatórias , Ressecção Transuretral da Próstata , Estreitamento Uretral , Humanos , Masculino , Estreitamento Uretral/cirurgia , Estreitamento Uretral/etiologia , Estudos Retrospectivos , Idoso , Ressecção Transuretral da Próstata/efeitos adversos , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/epidemiologia , Pessoa de Meia-Idade , Valor Preditivo dos Testes
5.
Investig Clin Urol ; 65(3): 240-247, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38714514

RESUMO

PURPOSE: To assess the predictive capability of hematological inflammatory markers for urethral stricture recurrence after primary urethroplasty and to compare traditional statistical methods with a machine-learning-based artificial intelligence algorithm. MATERIALS AND METHODS: Two hundred eighty-seven patients who underwent primary urethroplasty were scanned. Ages, smoking status, comorbidities, hematological inflammatory parameters (neutrophil-lymphocyte ratios, platelet-lymphocyte ratios [PLR], systemic immune-inflammation indexes [SII], and pan-immune-inflammation values [PIV]), stricture characteristics, history of previous direct-visual internal urethrotomy, urethroplasty techniques, and grafts/flaps placements were collected. Patients were followed up for one year for recurrence and grouped accordingly. Univariate and multivariate logistic regression analyses were conducted to create a predictive model. Additionally, a machine-learning-based logistic regression analysis was implemented to compare predictive performances. p<0.05 was considered statistically significant. RESULTS: Comparative analysis between the groups revealed statistically significant differences in stricture length (p=0.003), localization (p=0.027), lymphocyte counts (p=0.008), PLR (p=0.003), SII (p=0.003), and PIV (p=0.001). In multivariate analysis, stricture length (odds ratio [OR] 1.230, 95% confidence interval [CI] 1.142-1.539, p<0.0001) and PIV (OR 1.002, 95% CI 1.000-1.003, p=0.039) were identified as significant predictors of recurrence. Classical logistic regression model exhibited a sensitivity of 0.76, specificity of 0.43 with an area under curve (AUC) of 0.65. However, the machine-learning algorithm outperformed traditional methods achieving a sensitivity of 0.80, specificity of 0.76 with a higher AUC of 0.82. CONCLUSIONS: PIV and machine-learning algorithms shows promise on predicting urethroplasty outcomes, potentially leading to develop possible nomograms. Evolving machine-learning algorithms will contribute to more personalized and accurate approaches in managing urethral stricture.


Assuntos
Algoritmos , Aprendizado de Máquina , Uretra , Estreitamento Uretral , Humanos , Estreitamento Uretral/cirurgia , Masculino , Pessoa de Meia-Idade , Adulto , Uretra/cirurgia , Recidiva , Inflamação , Estudos Retrospectivos , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Idoso , Valor Preditivo dos Testes , Resultado do Tratamento
6.
World J Urol ; 42(1): 342, 2024 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-38775814

RESUMO

PURPOSE: To describe outcomes of staged-urethroplasty in complex anterior urethral strictures using full-thickness-skin-graft (FTSG) harvested from the hairless groin area, and to identify factors influencing successful outcomes. METHODS: Through retrospective chart review, we identified a total of 67 men who underwent the first-stage operation (grafting) using groin-FTSG for staged-urethroplasty to treat complex anterior urethral strictures unsuitable for one-stage urethroplasty. Among these, 59 underwent the second-stage operation (tubularization) at a median duration of 5.1-months after grafting. Patients were assessed for outcomes as scheduled after tubularization outcomes were analyzed only for 48 patients for whom ≥ 1-year follow-up data after tubularization were available. Their mean follow-up duration was 27.1 months. Success was defined as achieving physiologic voiding without requiring further procedures. RESULTS: Median stricture-length was 5.5 cm in all 67 patients. After grafting, neourethral-opening-narrowing occurred in 18. Partial graft-loss occurred in 8, of whom only 3 underwent re-grafting. The percentage of patients who achieved successful outcomes was 81.3%. Improvements in maximum-urine-flow-rate and post-void-residual-urine-volume were maintained until the last follow-up visit. A urethrocutaneous-fistula occurred in one patient, while meatal-stenosis occurred in two. On multivariate-regression-analysis, the presence of neourethral-opening-narrowing was the only predictor of non-success after tubularization. Furthermore, the presence of hypertension, longer stricture-length, and a history of prior direct-vision-internal-urethrotomy were predictors of the occurrence of neourethral-opening-narrowing. CONCLUSION: Staged-urethroplasty using groin-FTSG is well worth considering as a useful therapeutic option for complex anterior urethral strictures, with an acceptable success rate and low morbidity. The absence of neourethral-opening-narrowing after the first-stage operation leads to success.


Assuntos
Virilha , Transplante de Pele , Uretra , Estreitamento Uretral , Procedimentos Cirúrgicos Urológicos Masculinos , Humanos , Estreitamento Uretral/cirurgia , Masculino , Estudos Retrospectivos , Transplante de Pele/métodos , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Pessoa de Meia-Idade , Uretra/cirurgia , Adulto , Resultado do Tratamento , Virilha/cirurgia , Idoso , Adulto Jovem
7.
BMC Urol ; 24(1): 82, 2024 Apr 09.
Artigo em Inglês | MEDLINE | ID: mdl-38594657

RESUMO

OBJECTIVES: Redo surgery for pelvic fracture urethral distraction defects (PFUDDs) is still a challenge. the long urethral defect makes it difficult while the high tension increase the recurrence rate. Although certain ancillary maneuvers can relieve tension, there is no consensus or guidelines for the prediction/planning of the selection. In this study, we present our experience with developing an intraoperative guidance system to achieve tension-free urethral anastomosis. PATIENTS AND METHODS: A total of 91 recurrent PFUDD patients managed at our center between 2020 and 2022 were retrospectively analyzed. The patients underwent scar removing and urethral anastomosis. For the long defect and high-tension cases, 6 kinds of tension-relieving maneuvers were used respectively during the process of urethral anastomosis. Preoperative assessment of the urethrogram was done before surgery, while biaxial (vertical and horizontal) defect measurements were performed intraoperatively. The patients were followed-up for 12 months (8.9 ± 4.2), furthermore, recurrence and complications were analyzed. RESULTS: The overall success rate was 86.81%. The mean defect in urethrogram was 2.9 ± 1.1 cm. 27 simple anastomosis was performed when the vertical plus horizontal defect was less than 2 cm with 11.11% recurrence. 24 cavernous septum splittings were performed when the horizontal defect was greater than 2 cm with 8.33% recurrence. 21 inferior pubectomies were performed when the horizontal defect was greater than 3 cm with 19.05% recurrence. 15 ancillary distal urethra manipulations (fully distal urethral mobilization, urethral suspension and corpus cavernosa folding) were performed when the vertical defect was 3 to 4 cm with 13.33 recurrence. 4 reroutings were performed when the vertical defect was greater than 4 cm with 25.00% recurrence. CONCLUSIONS: Ancillary maneuvers are effective for reducing tension in redo urethral anastomosis. Measurement of divergent vertical and horizontal urethral defects could guide the selection of ancillary maneuvers. Combined tension-relieving maneuvers is recommended according to the defect direction and length to achieve a tension-free anastomosis.


Assuntos
Fraturas Ósseas , Ossos Pélvicos , Estreitamento Uretral , Humanos , Uretra/cirurgia , Estudos Retrospectivos , Procedimentos Cirúrgicos Urológicos/efeitos adversos , Anastomose Cirúrgica/efeitos adversos , Fraturas Ósseas/complicações , Estreitamento Uretral/cirurgia , Resultado do Tratamento
8.
Int Braz J Urol ; 50(3): 261-276, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38598829

RESUMO

INTRODUCTION: Urethral stricture is a common, albeit complex, condition that predominantly affects men. The aim of this study was to translate, culturally adapt, and validate the Patient-Reported Outcome Measure questionnaire for patients undergoing urethroplasty (USS-PROM) into Brazilian Portuguese using validated psychometric criteria. MATERIALS AND METHODS: The process involved translating and culturally adapting the original USS-PROM into Brazilian Portuguese (USS-PROMbr), synthesizing, back-translating, cross-culturally adapting, and analyzing the pre-final version with experts from our committee. This pre-version was administered to 10 patients who had undergone urethroplasty by the Reconstructive Urology team at the Hospital de Clínicas de Porto Alegre for face validation, linguistic, and semantic adjustments, resulting in the final USS-PROMbr version. Subsequently, well-established psychometric criteria, including content validity, internal consistency, and test-retest reproducibility, were assessed after administering the questionnaire to a total of 56 patients, with 50 of them responding to the test and retest. RESULTS: Evaluation of the pre-final version identified 15 questions as clear, and only one question was considered somewhat unclear necessitating modifications based on patient suggestions and subsequent reassessment by the research team. Psychometric criteria demonstrated good content validity, with a content validity index exceeding 0.80 for all questions; good internal consistency, Cronbach's alpha of 0.77, ranging from 0.70 to 0.78 with the exclusion of any item, and item-total correlations ranging from 0.33 to 0.67. The test-retest intraclass correlation coefficient was 0.74 for the lower urinary tract symptoms construct (Q1-Q6). CONCLUSION: The USS-PROMbr demonstrated acceptable cross-cultural adaptation and psychometric properties, making it a valid and useful tool for evaluating patients undergoing urethroplasty.


Assuntos
Estreitamento Uretral , Masculino , Humanos , Estreitamento Uretral/cirurgia , Reprodutibilidade dos Testes , Brasil , Inquéritos e Questionários , Constrição Patológica , Medidas de Resultados Relatados pelo Paciente , Psicometria/métodos , Qualidade de Vida , Comparação Transcultural , Traduções
10.
Can J Urol ; 31(2): 11858-11860, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38642465

RESUMO

Urethral cancer after urethral reconstruction is an under-recognized, uncommon disease associated with significant morbidity and mortality. The survival rates of patients with carcinoma of the bulbar urethra are as low as 20%-30%. Stricture recurrence and unrecognized malignant changes present prior to reconstruction are major risk factors for urethral cancer. Skin substitution urethroplasty is subjected to higher rates of recurrence, which lends to the potential for carcinogenesis. We present a case of a 59-year-old male who underwent multi-stage skin substitution urethroplasty who developed urethral carcinoma 20 years later.


Assuntos
Neoplasias Uretrais , Estreitamento Uretral , Masculino , Humanos , Pessoa de Meia-Idade , Uretra/cirurgia , Estreitamento Uretral/etiologia , Estreitamento Uretral/cirurgia , Estreitamento Uretral/patologia , Neoplasias Uretrais/cirurgia , Neoplasias Uretrais/etiologia , Estudos Retrospectivos , Mucosa Bucal , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversos , Resultado do Tratamento
12.
Urologiia ; (1): 135-142, 2024 Mar.
Artigo em Russo | MEDLINE | ID: mdl-38650419

RESUMO

The results of using non-transecting anastomotic urethroplasty in men with bulbous urethral strictures are presented in the review. A total of 25 original publications were found, including 20 foreign and 5 Russian articles. The studies included from 1 to 358 patients who underwent anastomotic urethroplasty without transection of the corpus spongiosum (average number of patients in a study was 54). Etiological factors were indicated in 17 articles. Most studies (10 out of 17) indicated idiopathic etiology as the predominant one. There was no correlation between the results of the procedure and the etiology of urethral stricture. The mean length of urethral stricture in the vast majority of studies was less than 2 cm, and only in a few studies it was larger, with a maximum mean value of 3.9 cm. Postoperative complication rates were reported in 20 studies and ranged from 0% to 23.9% within one study (median 8.4%). In general, mild complications occurred, corresponding to category I-II according to the Clavien-Dindo classification. The incidence of erectile dysfunction was evaluated in 18 studies and ranged from 0% to 23% (average value of 6.5%). The success of non-transecting anastomotic urethroplasty averaged 94.7% (82-100%) with a median postoperative follow-up of 24.5 months (3-150 months). In 9 out of 25 studies, an additional comparison with transecting technique was done. In 6 studies, the superiority of the non-transecting technique in terms of treatment success and preservation of sexual function was found. The obtained results showed the high efficiency and safety of non-transecting anastomotic urethroplasty in case of short strictures of the bulbous urethra.


Assuntos
Anastomose Cirúrgica , Uretra , Estreitamento Uretral , Humanos , Estreitamento Uretral/cirurgia , Estreitamento Uretral/etiologia , Masculino , Anastomose Cirúrgica/efeitos adversos , Anastomose Cirúrgica/métodos , Uretra/cirurgia , Complicações Pós-Operatórias/etiologia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversos
13.
Arch Esp Urol ; 77(2): 202-209, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38583013

RESUMO

OBJECTIVE: A retrospective study was performed to analyse the influencing factors of stricture recurrence after urethroplasty and to establish a predictive nomogram model. METHODS: The clinical data of patients who underwent urethroplasty in our hospital from January 2021 to June 2023 were retrospectively analysed. Depending on whether stenosis occurs six months after surgery, the patients were divided into recurrence and nonrecurrence groups. Logistic regression analysis was performed on the indicators with statistically significant differences between the two groups in single factor analysis to analyse the influencing factors of postoperative recurrence risk of stricture. X64.4.1.3 version R language and external source packages were used to build the nomogram model. The nomogram was internally validated through 10-fold cross-validation, and C-index was calculated. The area under the curve (AUC) of the receiver operating characteristic curve was employed to evaluate the results of the internal validation. RESULTS: Amongst 105 patients who underwent urethroplasty in our hospital, 15 patients with recurrence were included in the recurrence group, and 90 patients without recurrence were included in the nonrecurrence group. The length of stricture segment, history of urethroplasty and smoking history within 3 months before surgery were risk factors for stricture recurrence, with odds ratio (OR) values of 1.874 (95% CI: 1.103-5.725), 1.670 (95% CI: 1.105-2.904) and 1.740 (95% CI: 1.456-5.785), respectively. The constructed nomogram obtained an average AUC of 0.842 and an average C-index of 0.794, calculated after 200 times of 10-fold cross-validation. CONCLUSIONS: From the data of this study, it can be deduced that the influencing factors of stricture recurrence after urethroplasty include the length of stricture segment, history of urethroplasty and smoking history of 3 months before surgery. Using the above factors as a basis to construct a predictive nomogram model is helpful to screen high-risk patients with recurrence of stricture after urethroplasty.


Assuntos
Estreitamento Uretral , Humanos , Masculino , Estudos Retrospectivos , Constrição Patológica/etiologia , Constrição Patológica/cirurgia , Estreitamento Uretral/cirurgia , Estreitamento Uretral/etiologia , Nomogramas , Recidiva , Uretra/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Resultado do Tratamento
14.
BMC Urol ; 24(1): 99, 2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38685008

RESUMO

OBJECTIVE: To evaluate the efficacy of urethral-sparing laparoscopic simple prostatectomy (US-LSP) for the treatment of large-volume (>80 ml) benign prostatic hyperplasia (BPH) with asymptomatic urethral stricture (urethral lumen > 16 Fr) after urethral stricture surgery. METHODS: We retrospectively analyzed clinical data of 39 large-volume BPH patients with asymptomatic urethral stricture after urethral stricture surgery who underwent US-LSP from January 2016 to October 2021. Postoperative follow-ups were scheduled at 1, 3, and 6 months. RESULTS: All patients affected by significant BPH-related lower urinary tract symptoms (LUTS) including 22 cases with asymptomatic anterior urethral stricture and 17 cases with asymptomatic posterior urethral stricture. Median operative time was 118 min (interquartile range [IQR]100-145). Median estimated blood loss was 224 ml (IQR: 190-255). 33 patients(84.6%) avoided continuous bladder irrigation. Postoperative complications occurred in 5 patients (12.8%), including 4 cases with Clavien-Dindo grade 1 and grade 2 and 1 case with grade 3a. During follow-up, US-LSP presented statistically significant improvements in LUTS compared to baseline (P < 0.05). A total of 25 patients had normal ejaculation preoperatively and 3 patients (12%) complained retrograde ejaculation postoperatively. Two patients (5.1%) reported stress urinary incontinence (SUI) and no patient reported aggravated urethral stricture during follow-up. CONCLUSIONS: US-LSP was safe and effective in treating large-volume BPH with asymptomatic urethral stricture after urethral stricture surgery. Meanwhile, US-LSP could reduce the risk of SUI in patients with asymptomatic posterior urethral stricture and maintain ejaculatory function in a high percentage of patients.


Assuntos
Laparoscopia , Prostatectomia , Hiperplasia Prostática , Estreitamento Uretral , Humanos , Masculino , Hiperplasia Prostática/cirurgia , Hiperplasia Prostática/complicações , Estudos Retrospectivos , Estreitamento Uretral/etiologia , Estreitamento Uretral/cirurgia , Idoso , Prostatectomia/métodos , Prostatectomia/efeitos adversos , Tratamentos com Preservação do Órgão/métodos , Pessoa de Meia-Idade , Doenças Assintomáticas , Uretra/cirurgia , Resultado do Tratamento , Complicações Pós-Operatórias/etiologia
15.
World J Urol ; 42(1): 172, 2024 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-38506927

RESUMO

PURPOSE: To compare the outcomes of patients undergoing robotic YV plasty for bladder neck contracture (BNC) vs. vesico-urethral anastomotic stricture (VUAS). METHODS: A retrospective study included male patients who underwent robotic YV plasty for BNC after endoscopic treatment of BPH or VUAS between August 2019 and March 2023 at a single academic center. The primary assessed was the patency rate at 1 month post-YV plasty and during the last follow-up visit. RESULTS: A total of 21 patients were analyzed, comprising 6 in the VUAS group and 15 in the BNC group. Patients with VUAS had significantly longer operative times (277.5 vs. 146.7 min; p = 0.008) and hospital stay (3.2 vs. 1.7 days; p = 0.03). Postoperative complications were more common in the VUAS group (66.7% vs. 26.7%; p = 0.14). All patients resumed spontaneous voiding postoperatively. Five patients (23.8%) who developed de novo stress urinary incontinence had already an AUS (n = 1) or required concomitant AUS implantation (n = 3), all of whom were in the VUAS group (83.3% vs. 0%; p < 0.0001). The proportion of patients improved was similar in both groups (PGII = 1 or 2: 83.3% vs. 80%; p = 0.31). Stricture recurrence occurred in 9.5% of patients in the whole cohort, with no significant difference between the groups (p = 0.50). Long-term reoperation was required in three VUAS patients, showing a statistically significant difference between the groups (p = 0.05). CONCLUSION: Robotic YV plasty is feasible for both VUAS and BNC. While functional outcomes and stricture-free survival may be similar for both conditions, the perioperative outcomes were less favorable for VUAS patients.


Assuntos
Contratura , Procedimentos Cirúrgicos Robóticos , Estreitamento Uretral , Obstrução do Colo da Bexiga Urinária , Humanos , Masculino , Bexiga Urinária/cirurgia , Constrição Patológica/etiologia , Constrição Patológica/cirurgia , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Estudos Retrospectivos , Obstrução do Colo da Bexiga Urinária/cirurgia , Obstrução do Colo da Bexiga Urinária/complicações , Contratura/cirurgia , Estreitamento Uretral/etiologia , Estreitamento Uretral/cirurgia , Prostatectomia/efeitos adversos
16.
World J Urol ; 42(1): 123, 2024 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-38453722

RESUMO

PURPOSE: Small intestinal submucosa (SIS) graft urethroplasty has been employed to decrease buccal mucosa morbidity and facilitate the procedure. The first published series had a short follow-up, inhomogeneous patient selection, and a lack of a control group. Our purpose is to report treatment outcomes at 13 years in a propensity score-matched cohort comparing bulbar urethroplasty with SIS (SISU) or buccal mucosa (BMU). METHODS: From our institutional database of 1132 bulbar urethroplasties, we used propensity score matching with the nearest-neighbor method without replacement to generate a study sample of 25 BMU and 25 SISU. Failure was defined as any treatment after urethroplasty. Survival analyses were used to analyze treatment failure occurrence with data censored at 156mo. RESULTS: Matching resulted in a complete correction of bias between the two samples except for the follow-up duration, which was slightly longer in the SIS group. The cumulative treatment success probability of BMU and SISU at 156mo was 83.4% and 68%, respectively. At multivariable Cox regression, SIS graft, previous urethrotomy, stricture length, and lower postoperative Qmax (within 2mo after catheter removal) were predictors of failure. Stricture length had a more remarkable effect in SISU, with estimated survival probabilities from the Cox model lower than 80% in strictures > = 3 cm. CONCLUSION: SIS has poorer outcomes compared to BM but may still be useful when BM grafting is not possible. The best candidates for SISU, with similar success to BMU, are patients with strictures shorter than 3 cm, preferably without a history of DVIU.


Assuntos
Estreitamento Uretral , Masculino , Humanos , Constrição Patológica/cirurgia , Estreitamento Uretral/cirurgia , Mucosa Bucal/transplante , Pontuação de Propensão , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Uretra/cirurgia , Resultado do Tratamento
20.
Urology ; 186: 36-40, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38403139

RESUMO

OBJECTIVE: To assess the impact of posterior urethral stenosis or defect on outcomes following rectourethral fistula (RUF) repair, we present a cohort of 23 men who underwent posterior urethroplasty concurrent with RUF repair. METHODS: We identified 130 men who underwent RUF repair at our institution between 2003 and 2021. Of these, 23 (18%) underwent simultaneous posterior urethroplasty. Fifteen men received prior radiation for prostate cancer. Of the 8 men who were not radiated, 4 had a history of radical prostatectomy, 2 pelvic trauma, and 3 inflammatory bowel disease. All 23 men underwent fecal diversion prior to surgery (median, 6 months preoperatively), and 20 men suprapubic catheter placement (median, 5.5 months preoperatively). RESULTS: RUF repair was performed via perineal approach in 22 cases (96%) and prone Kraske position in 1 (4%). Intraoperatively, 20 men (87%) had urethral stenosis, and 3 (13%) had significant urethral defects due to cavitation and tissue loss. There was stenosis/stricture involving the prostatomembranous urethra in 18 cases (78%) and vesicourethral anastomosis in 5 (22%). Urethroplasty was performed with anastomotic repair in 18 patients (78%) and using a buccal mucosal graft in 5 (22%). Gracilis flap interposition was performed in 21 cases (91%). At a median follow-up of 55.7 months (interquartile range (IQR), 23-82 months), 20 men (87%) had successful RUF closure, with 3 patients experiencing RUF recurrence requiring further surgery. Fourteen men (61%) reported postoperative urinary incontinence, with 7 (30%) ultimately undergoing artificial urinary sphincter placement. There were no isolated stricture recurrences requiring instrumentation. CONCLUSION: Posterior urethral stenosis associated with RUF complicates an already challenging problem. However, most of these patients can be successfully treated concurrent with RUF repair. This series demonstrates that patients with RUF should not be ruled out for restorative reconstructive surgery based on the presence of posterior urethral stenosis or defect.


Assuntos
Procedimentos de Cirurgia Plástica , Fístula Retal , Estreitamento Uretral , Fístula Urinária , Masculino , Humanos , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Estreitamento Uretral/complicações , Constrição Patológica/cirurgia , Fístula Retal/cirurgia , Fístula Retal/etiologia , Fístula Urinária/cirurgia , Fístula Urinária/complicações , Estudos Retrospectivos , Resultado do Tratamento
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