Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 501
Filtrar
Mais filtros

Eixos temáticos
Intervalo de ano de publicação
1.
J Urol ; 211(3): 455-464, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38109717

RESUMO

PURPOSE: There is a paucity of reported long-term outcomes after contemporary urethroplasty. Our objective is to determine the long-term success of modern urethroplasty and identify factors associated with stricture recurrence in this context. MATERIALS AND METHODS: Patients undergoing urethroplasty from July 2003 to May 2013 with at least 100 months of follow-up were identified. Long-term outcomes including stricture recurrence and patient satisfaction were evaluated by review of regional/provincial electronic records and telephone interview. Urethroplasty failure was defined as a recurrent stricture (<16F) confirmed on cystoscopy. Cox regression was used to evaluate variables associated with long-term stricture recurrence. RESULTS: A total of 733 patients were identified with ≥ 100 months follow-up. Median patient age was 45 years, stricture length was 4.7 cm, and 85.8% failed prior endoscopic treatment. At a median follow-up of 12.3 years, 89 recurrences were observed. Cumulative incidence of stricture recurrence was 6%, 10%, and 12% after 1, 5, and 10 years, respectively. From a patient-reported perspective, 89% of patients reported being satisfied with the outcome of surgery. On multivariable analyses, increasing stricture length (HR 1.1, 95% CI 1.05-1.15; P < .001) and stricture etiology (P < .001), in particular lichen sclerosus (HR 4.46, 95% CI 2.25-9.53), radiation (HR 4.25, 95% CI 1.65-10.9), and infectious strictures (HR 5.27, 95% CI 2.03-13.7), were independently associated with stricture recurrence. CONCLUSIONS: This study affirms the widely held belief that modern urethroplasty provides high long-term patency and patient-reported satisfaction. Patients with longer strictures as well as those with lichen sclerosus, radiation, and infectious etiologies have a higher hazard of stricture recurrence in the long term.


Assuntos
Líquen Escleroso e Atrófico , Estreitamento Uretral , Humanos , Pessoa de Meia-Idade , Masculino , Constrição Patológica/cirurgia , Estreitamento Uretral/cirurgia , Estreitamento Uretral/complicações , Resultado do Tratamento , Líquen Escleroso e Atrófico/complicações , Líquen Escleroso e Atrófico/cirurgia , Estudos Retrospectivos , Uretra/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversos , Mucosa Bucal , Recidiva
2.
Prostate ; 83(11): 1020-1027, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37089004

RESUMO

INTRODUCTION: Transurethral resection of the prostate (TURP) is the most frequently used treatment of benign prostate hyperplasia with a prostate volume of <80 mL. A long-term complication is bladder neck contracture (BNC). The aim of the present study was to identify the risk factors for BNC formation after TURP. METHODS: We conducted a retrospective analysis of all TURP primary procedures which were performed at one academic institution between 2013 and 2018. All patients were analyzed and compared with regard to postoperative formation of a BNC requiring further therapy. Uni- and multivariable logistic regression analyses (MVAs) were performed to identify possible risk factors for BNC development. RESULTS: We included 1368 patients in this analysis. Out of these, 88 patients (6.4%) developed BNC requiring further surgical therapy. The following factors showed a statistically significant association with BNC development: smaller preoperative prostate volume (p = 0.001), lower resected prostate weight (p = 0.004), lower preoperative levels of prostate-specific antigen (PSA, p < 0.001), shorter duration of the surgery (p = 0.027), secondary transurethral intervention (due to urinary retention or gross hematuria) during inpatient stay (p = 0.018), positive (≥100 CFU/mL) preoperative urine culture (p = 0.010), and urethral stricture (US) formation requiring direct visual internal urethrotomy (DVIU) postoperatively after TURP (p < 0.001), in particular membranous (p = 0.046) and bulbar (p < 0.001) strictures. Preoperative antibiotic treatment showed a protective effect (p = 0.042). Histopathological findings of prostate cancer (PCA) in the resected prostate tissue were more frequent among patients who did not develop BNC (p = 0.049). On MVA, smaller preoperative prostate volume (p = 0.046), positive preoperative urine culture (p = 0.021), and US requiring DVIU after TURP (p < 0.001) were identified as independent predictors for BNC development. CONCLUSION: BNC is a relevant long-term complication after TURP. In particular, patients with a smaller prostate should be thoroughly informed about this complication.


Assuntos
Contratura , Neoplasias da Próstata , Ressecção Transuretral da Próstata , Estreitamento Uretral , Obstrução do Colo da Bexiga Urinária , Ressecção Transuretral da Próstata/efeitos adversos , Contratura/complicações , Bexiga Urinária , Estreitamento Uretral/complicações , Estreitamento Uretral/cirurgia , Fatores de Risco , Resultado do Tratamento , Estudos Retrospectivos , Neoplasias da Próstata/cirurgia , Humanos , Masculino , Complicações Pós-Operatórias , Obstrução do Colo da Bexiga Urinária/etiologia
3.
J Urol ; 210(1): 136-142, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-36947796

RESUMO

PURPOSE: Reported rates of urethral stricture development after artificial urinary sphincter erosion are highly variable. We hypothesized that the risk of stricture is commensurate with the degree of erosion. MATERIALS AND METHODS: We reviewed our prospectively maintained quality improvement database for all patients with artificial urinary sphincter erosion from 2011 to 2022. The incidence of postoperative stricture development was compared to the severity of erosion using a graded scale: 1, <25% circumference; 2, 25%-50% circumference; 3, >50% and <100% circumference; and 4, 100% circumference. From 862 artificial urinary sphincter surgeries, 102 erosion cases were identified, and 63 with documented erosion severity were included for analysis. Additional analysis was performed on 28 cases without documented erosion severity for validation. RESULTS: Within the main cohort, urethral stricture developed in 22 (34.9%) patients. The incidence of stricture did not vary by grade of erosion (P = .73) and was not significantly higher in men with grade 4 erosion vs lower-grade erosions (32.7% vs 50.0%, P = .34). Radiation exposure was associated with a 41.1% higher incidence of stricture (P < .01) and nearly every stricture occurred in the setting of prior radiation (21 of 22; 95.5%). In the validation group, 10 (35.7%) developed stricture, mostly in the setting of radiation (8 of 10; 80%). Overall, 29 of 32 (90.6%) cases of stricture involved a history of radiation. CONCLUSIONS: Artificial urinary sphincter erosion does not lead to urethral stricture formation in most cases and is not associated with degree of erosion. Those who develop strictures nearly always have a history of pelvic radiation.


Assuntos
Estreitamento Uretral , Incontinência Urinária por Estresse , Esfíncter Urinário Artificial , Masculino , Humanos , Estreitamento Uretral/cirurgia , Estreitamento Uretral/complicações , Esfíncter Urinário Artificial/efeitos adversos , Uretra/cirurgia , Constrição Patológica , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Estudos Retrospectivos , Incontinência Urinária por Estresse/cirurgia
4.
J Pak Med Assoc ; 73(10): 2123-2125, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37876089

RESUMO

Neurogenic bladder is one of the negative consequences following a spinal cord injury (SCI). SCI patients who have neurogenic bladder depend on alternative methods to drain urine from their bladder. These include indwelling catheters, reflex voiding , suprapubic tapping and intermittent catheterisation. This review summarizes evidence from the literature of five selected complications (renal failure, urinary tract infections, calculi, urethral stricture, and bladder cancer) that could result from use of the different bladder drainage methods. There is inconsistent evidence to support the superiority of intermittent over indwelling catheterisation on risk of renal impairment, urethral stricture, and renal calculi. Indwelling catheterisations are associated with higher risk of bladder calculi and cancer. Caution needs to be taken when interpreting this review, as many of its findings are from retrospective studies, and more than a decade old. Clinicians need to communicate the evidence to their patients when making the decision on method of bladder drainage.


Assuntos
Traumatismos da Medula Espinal , Estreitamento Uretral , Bexiga Urinaria Neurogênica , Infecções Urinárias , Humanos , Bexiga Urinária , Bexiga Urinaria Neurogênica/terapia , Bexiga Urinaria Neurogênica/complicações , Cateterismo Urinário/efeitos adversos , Estudos Retrospectivos , Estreitamento Uretral/complicações , Cateteres de Demora/efeitos adversos , Infecções Urinárias/etiologia , Traumatismos da Medula Espinal/complicações , Traumatismos da Medula Espinal/terapia , Drenagem/métodos
5.
Neurourol Urodyn ; 41(1): 229-236, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34559913

RESUMO

AIMS: To examine the rate of lower urinary tract complications (LUTC) and urinary diversion (UD) after artificial urinary sphincter (AUS) explantation with the acute reconstruction of AUS cuff erosion defects. METHODS: We performed a retrospective study of patients who underwent in-situ urethroplasty (ISU) for AUS cuff erosion from June 2007 to December 2020. Outcomes included LUTC (urethral stricture, diverticulum, fistula), AUS reimplantation, and UD. Defect size was prospectively estimated acutely and a subanalysis was performed to determine the impact of erosion severity (small erosions [<33% circumferential defect] and large erosions [≥33%]) on these outcomes. Kaplan-Meier curves were created to compare survival between the two groups. RESULTS: A total of 40 patients underwent ISU for urethral cuff erosion. The median patient age was 76 years old with a median erosion circumference of 46%. The overall LUTC rate was 30% (12/40) with 35% (14/40) of patients requiring permanent UD. Secondary AUS placement occurred in 24/40 (60%) patients with 11/24 (46%) leading to repeat erosion. On subanalysis, small erosion was associated with improved LUTC-free and UD-free survival but not associated with AUS reimplantation. CONCLUSIONS: Lower urinary tract complications are common after AUS cuff erosion and can lead to the need for permanent UD. Patients with larger erosions are more likely to undergo UD and reach this end-stage condition earlier compared to patients with small erosions.


Assuntos
Estreitamento Uretral , Incontinência Urinária por Estresse , Esfíncter Urinário Artificial , Idoso , Remoção de Dispositivo/efeitos adversos , Humanos , Masculino , Estudos Retrospectivos , Uretra/cirurgia , Estreitamento Uretral/complicações , Incontinência Urinária por Estresse/cirurgia , Esfíncter Urinário Artificial/efeitos adversos
6.
Andrologia ; 54(9): e14523, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35789109

RESUMO

We assessed the incidence and risks factors of bladder neck and urethral stenosis after Thulium laser enucleation of the prostate. Patients who underwent surgery at two centres were retrospectively reviewed (December 2014-June 2020). Exclusion criteria: previous urethral/prostatic surgery, pelvic irradiation, prostate cancer, neurogenic bladder, history of bladder neck and urethral stenosis, concomitant transurethral surgery, active urinary tract infection. Significant variables at univariate analysis (p < 0.05) were included in a multivariate logistic regression analysis to establish their association with bladder neck/urethral stenosis. One thousand and three patients were included. Median age was 69.0 (63.0-75.0) years. Median prostate volume was 65.0 (46.3-82.0) ml. Median follow-up was 31 (25-75) months. Thirty patients (2.99%) developed bladder neck stenosis [median time after surgery: 15 (11-17.75) months], 50 patients (4.98%) urethral stenosis [median time after surgery: 9 (7-11) months]. Men with bladder neck and urethral stenosis had significantly smaller prostate volume (median volume 43.5 ml vs. 66.0 ml, p = 0.008, and 52.0 ml vs. 66.0 ml, p = 0.009, respectively). At multivariable analysis, short surgical time predicted for bladder neck stenosis (OR 0.973; 95% CI 0.957-0.994, p = 0.002), and re-catheterization (OR 3.956; 95% CI 1.867-8.382, p < 0.001) for urethral stenosis, whereas prostate volume was significantly associated with a lower incidence of US (OR 0.984, 95% CI 0.972-0.998, p = 0.03).


Assuntos
Hiperplasia Prostática , Ressecção Transuretral da Próstata , Estreitamento Uretral , Obstrução do Colo da Bexiga Urinária , Idoso , Constrição Patológica/epidemiologia , Constrição Patológica/etiologia , Humanos , Lasers , Masculino , Próstata , Hiperplasia Prostática/etiologia , Estudos Retrospectivos , Fatores de Risco , Túlio , Ressecção Transuretral da Próstata/efeitos adversos , Resultado do Tratamento , Estreitamento Uretral/complicações , Estreitamento Uretral/etiologia , Bexiga Urinária , Obstrução do Colo da Bexiga Urinária/epidemiologia , Obstrução do Colo da Bexiga Urinária/etiologia , Obstrução do Colo da Bexiga Urinária/cirurgia
7.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 44(2): 227-235, 2022 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-35538757

RESUMO

Objective To investigate the clinical characteristics and genetic mutations in Kindler syndrome(KS)and provide a theoretical basis for the diagnosis and treatment of KS. Methods The clinical data of one case of KS from Peking Union Medical College Hospital and 185 cases reported in literature were collected. The gene mutation types,patient clinical data,and tumor characteristics were statistically analyzed. Results A total of 186 cases were enrolled,including 110 males and 76 females,with the mean age of(28±16)years. The data of gene mutation and specific clinical manifestations were available in 151 and 94 patients,respectively. The main clinical manifestations of KS included poikiloderma,occurrence of blister in childhood,and photosensitivity,and the secondary clinical manifestations included oral inflammation,palmoplantar keratoderma,webbing/pseudoainhum,dysphagia,urethral stricture and so on.Oral inflammation(r=0.234,P=0.023),palmoplantar keratoderma(r=0.325,P=0.001),webbing/pseudoainhum(r=0.247,P=0.016),dysphagia(r=0.333,P=0.001),urethral stricture(r=0.280,P=0.006)were significantly correlated with age,showing significantly higher incidence in the patients over 32 years old.Urethral stricture(χ2=11.292,P=0.001)and anal stenosis(χ2=4.014,P=0.045)were significantly correlated with sex,with higher incidence in males.Eighty different mutations were found in 151 patients,and the most common gene mutation was c.676C>T.Forty-one tumors occurred in 27 patients,among which squamous cell carcinoma accounted for 92.7%. The gene mutation site had no significant correlation with squamous cell carcinoma or patient country. Conclusions The c.676C>T in FERMT1 gene is the most common mutation in KS.The patients are prone to squamous cell carcinoma and mainly attacked at the exposure sites(hand and mouth).


Assuntos
Carcinoma de Células Escamosas , Transtornos de Deglutição , Ceratodermia Palmar e Plantar , Estreitamento Uretral , Adolescente , Adulto , Ainhum , Vesícula , Criança , Constrição Patológica , Transtornos de Deglutição/complicações , Epidermólise Bolhosa , Feminino , Humanos , Inflamação , Ceratodermia Palmar e Plantar/complicações , Masculino , Proteínas de Membrana , Mutação , Proteínas de Neoplasias/genética , Doenças Periodontais , Transtornos de Fotossensibilidade , Estreitamento Uretral/complicações , Adulto Jovem
8.
J Urol ; 206(4): 986-993, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34032496

RESUMO

PURPOSE: An ill-defined proportion of patients undergoing urethroplasty fail to experience improvement in lower urinary tract symptoms (LUTS) despite being stricture-free. We aim to identify the incidence, associations and causes of "LUTS failure" after urethroplasty. MATERIALS AND METHODS: Patients undergoing urethroplasty over a 6-year period were offered enrollment in a prospective study examining urinary function after urethroplasty. Patients were assessed preoperatively and 6 months postoperatively using the International Prostate Symptom Score (IPSS) and cystoscopy. "LUTS failure" was defined as ≤3-point improvement in IPSS despite an anatomically successful urethroplasty. Multivariable logistic regression was utilized to evaluate the association between patient factors and "LUTS failure." RESULTS: Of 365 patients meeting inclusion criteria, mean postoperative IPSS (20.3 vs. 5.4, p <0.0001) and median urinary quality of life (UQOL; 5 vs. 1; p <0.0001) were significantly improved. Despite being stricture-free, 7.7% of patients reported "LUTS failure" and 10.1% reported UQOL nonresponse. On multivariable logistic regression, increasing age (OR 1.04, 95% CI 1.01-1.06; p=0.006) and hypospadias (OR 18.2, 95% CI 2.1-156.0; p=0.008) were associated with "LUTS failure," while stricture location (p=0.76), length (p=0.14), previous urethroplasty (p=0.96), failed endoscopic treatment (p=0.17), type of urethroplasty (p=0.93) and other etiologies were not. Qualitatively, the most likely causes of "LUTS failure" were detrusor underactivity (39.3%), overactivity (21.4%), pelvic floor dysfunction (21.4%) or benign prostatic hyperplasia (14.3%). Only increasing age was associated with UQOL nonresponse (OR 1.03, 95% CI 1.01-1.07; p=0.02). CONCLUSIONS: While many patients experience improved voiding function after urethroplasty, 7.7% experience "LUTS failure" and 10.1% report UQOL nonresponse. Both occurrences are independently associated with increasing patient age and most commonly related to detrusor underactivity.


Assuntos
Sintomas do Trato Urinário Inferior/diagnóstico , Procedimentos de Cirurgia Plástica/estatística & dados numéricos , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/estatística & dados numéricos , Adolescente , Adulto , Idoso , Seguimentos , Humanos , Incidência , Sintomas do Trato Urinário Inferior/etiologia , Sintomas do Trato Urinário Inferior/fisiopatologia , Sintomas do Trato Urinário Inferior/cirurgia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Qualidade de Vida , Inquéritos e Questionários/estatística & dados numéricos , Falha de Tratamento , Estreitamento Uretral/complicações , Micção/fisiologia , Adulto Jovem
9.
World J Urol ; 39(10): 3903-3911, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33811511

RESUMO

PURPOSE: To report long-term results and patient reported outcomes of staged anterior urethroplasties, and isolate risk factors for recurrence. METHODS:  We reviewed urethroplasty database for all patients who underwent staged urethroplasty from 2000 to 2017. Follow-up included a cystoscopy 4 months after their 2nd stage to assess early success, and then annual follow-up thereafter with post-void residual and symptom assessment. Stricture characteristics, etiology and graft type were analyzed with regards to success. RESULTS:  Forty-nine patients were eligible for inclusion. The median stricture length was 7 cm (3-17 cm). The early success rate demonstrated by cystoscopy at 4 months was 100%. Long-term success was 96.4% in buccal graft (BMG) only patients; however, long-term success fell considerably to 53% in patients requiring any use split thickness skin graft (STSG) in the first stage. Median follow up time was 57 months (6-240 months). On analysis, age, increased stricture length and especially the use of STSG all appeared to be associated with late recurrence. The recurrence group had longer stricture length and were more likely to be panurethral. All recurrences occurred after the initial 4-month cystoscopy with a median time to recurrence of 78 months. CONCLUSION: Staged repairs that are amenable to BMG-only repairs have high long-term success rates. Increasing stricture length and the addition of split-thickness skin graft were associated with lower success rate in staged urethral reconstruction. Patients requiring staged repairs often experience recurrence in a very delayed fashion reinforcing the need for close, long-term follow up.


Assuntos
Mucosa Bucal/transplante , Procedimentos de Cirurgia Plástica/métodos , Transplante de Pele/métodos , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Adolescente , Adulto , Idoso , Balanite Xerótica Obliterante/complicações , Seguimentos , Humanos , Hipospadia/complicações , Masculino , Pessoa de Meia-Idade , Recidiva , Fatores de Risco , Estreitamento Uretral/complicações , Adulto Jovem
10.
World J Urol ; 38(12): 3061-3067, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31807846

RESUMO

INTRODUCTION: Lichen sclerosus (LS) is a common cause of urethral stricture disease. The purpose of this article is to review the literature over the past 5 years, to describe current treatment of lichen sclerosus as it relates to urethral stricture in men. MATERIALS AND METHODS: Literature reviews were performed using PUBMED, with search terms "lichen scleros*" and "urethral stenosis", as well as "lichen scleros*" and "urethral stricture". Relevant articles published within the past 5 years were selected for review. A summary of current treatment of lichen sclerosus was prepared and synthesized. RESULTS: For LS affecting genital skin, topical steroids are a mainstay of therapy but in advanced cases, surgery may be required such as circumcision. When LS causes urethral stricture, urethral dilatation is unlikely to be successful long term, and surgery is often required, such as meatoplasty, single- or two-stage urethroplasty, or perineal urethrostomy. Oral mucosal grafting is the graft of choice, and usage of genital skin for flaps or grafts is best avoided due to predilection for recurrence. Biopsy and long-term surveillance of LS are recommended, due to its potential association with squamous cell carcinoma development. CONCLUSION: Although debate still exists regarding the pathogenesis of LS, it is agreed that LS can pose a treatment challenge to physicians and surgeons. Treatment options for LS range from pharmacological to surgical, depending on severity and location of disease, patient factors, and response of previous treatments.


Assuntos
Líquen Escleroso e Atrófico/cirurgia , Estreitamento Uretral/cirurgia , Humanos , Líquen Escleroso e Atrófico/complicações , Masculino , Uretra/cirurgia , Estreitamento Uretral/complicações , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
11.
Neurourol Urodyn ; 39(5): 1371-1377, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32249980

RESUMO

AIM: Bladder outflow in women (bladder outlet obstruction [BOO]) has no well-accepted defining diagnostic criteria. Various nomograms exist based on flow rates, pressure-flow data, and fluoroscopy. We have prospectively evaluated the Solomon-Greenwell bladder outflow obstruction nomogram (SG BOO nomogram) as a measurement of BOO resolution following targeted surgical intervention. METHODS: The routine posttreatment urodynamics of 21 unselected women with an original urodynamic diagnosis of BOO on fluoroscopy and the SG BOO nomogram (BOO boundary defined as Qmax > 2.2 Pdet.Qmax + 5) were reviewed. All women had symptomatic BOO secondary to anterior pelvic organ prolapse (aPOP), urethrovaginal fistula (UVF), previous stress urinary incontinence (SUI) surgery, urethral stricture (US), or urethral diverticulum (U Div). Following treatment, all presenting symptoms resolved and simple urodynamics were performed as part of routine follow-up. RESULTS: The urodynamic findings preoperatively and postoperatively showed statistically significant changes posttreatment in mean flow rate which increased from 9.38 to 14.71 mL/s, mean Pdet.Qmax which decreased from 38 to 18.38 cmH2 O, and mean SG BOO nomogram probability (PBOO) which reduced from PBOO = 0.68 to 0.08. Mean SG BOO nomogram PBOO was significantly reduced posttreatment in all individual categories except UVF where a nonsignificant reduction from PBOO = 0.55 to 0.05 occurred. CONCLUSIONS: All urodynamic parameters significantly improve in women who become asymptomatic following surgical treatment of BOO. This improvement is best demonstrated by the change in probability of BOO according to the Solomon-Greenwell nomogram. These findings underline the validity of the Solomon-Greenwell female BOO nomogram for diagnosing and monitoring BOO in women.


Assuntos
Estreitamento Uretral/complicações , Obstrução do Colo da Bexiga Urinária/diagnóstico , Incontinência Urinária por Estresse/complicações , Urodinâmica/fisiologia , Adulto , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Nomogramas , Estudos Retrospectivos , Estreitamento Uretral/fisiopatologia , Obstrução do Colo da Bexiga Urinária/etiologia , Obstrução do Colo da Bexiga Urinária/fisiopatologia , Incontinência Urinária por Estresse/fisiopatologia
12.
Prenat Diagn ; 40(2): 191-196, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31654578

RESUMO

OBJECTIVES: Anterior urethral anomalies (AUA) which present as anterior urethral valve, stenosis or atresia, are a rare cause for congenital urinary tract obstruction. We present our AUA prenatal diagnosis case series. METHODS: Fetuses presenting with prenatal findings suggestive for AUA according to postnatal reported clinical and imaging signs (urinary tract dilatation, dilated bladder, enlarged edematous fetal penis, dilatation of the fetal urethra and diverticula) were followed prospectively. RESULTS: Six fetuses were diagnosed with AUA. Diagnosis was confirmed upon examination of the neonate or the abortus. All cases presented with variable degrees of urinary tract dilatation. Four fetuses who presented with additional congenital anomalies of the kidneys and urinary tract (CAKUT) developed intra-uterine or early postnatal renal failure, while two isolated AUA cases have a normal renal outcome. CONCLUSIONS: AUA is a rare diagnosis. However, high index of suspicion and careful sonographic assessment of the male fetal urethra in cases referred for urinary tract dilatation may enable appropriate parent counseling, optimal prenatal surveillance and timed postnatal urological intervention. As in other lower urinary tract obstructions, future renal function seems to correlate with associated CAKUT, therefore close follow up throughout pregnancy and meticulous sonographic assessment is recommended.


Assuntos
Dilatação Patológica/diagnóstico por imagem , Hidronefrose/diagnóstico por imagem , Uretra/diagnóstico por imagem , Estreitamento Uretral/diagnóstico por imagem , Anormalidades Urogenitais/diagnóstico por imagem , Anormalidades Múltiplas/diagnóstico por imagem , Aborto Induzido , Adulto , Dilatação Patológica/etiologia , Edema/diagnóstico por imagem , Feminino , Humanos , Hidronefrose/congênito , Hidronefrose/etiologia , Recém-Nascido , Rim/diagnóstico por imagem , Masculino , Oligo-Hidrâmnio/diagnóstico por imagem , Oligo-Hidrâmnio/etiologia , Pênis/diagnóstico por imagem , Gravidez , Insuficiência Renal/etiologia , Ultrassonografia Pré-Natal , Uretra/anormalidades , Obstrução Uretral/complicações , Obstrução Uretral/congênito , Obstrução Uretral/diagnóstico por imagem , Estreitamento Uretral/complicações , Estreitamento Uretral/congênito , Bexiga Urinária/diagnóstico por imagem , Sistema Urinário , Anormalidades Urogenitais/complicações , Adulto Jovem
13.
Rev Med Suisse ; 16(717): 2334-2338, 2020 Dec 02.
Artigo em Francês | MEDLINE | ID: mdl-33263958

RESUMO

Urethral stricture is defined by a decrease in the caliber of the urethral lumen which can cause a decrease or an interruption of the urine flow. This disease is much more common in men than in women, and several causes can be identified. The diagnosis depends on a careful patient history focusing on obstructive and/or irritative lower urinary tract symptoms and is confirmed by a specific work-up. Treatment ranges from conservative management to open surgery and requires specialized surgeons, so as an adequate technical platform. The evolution of surgical techniques has fortunately significantly increased long term success rates. Hence, the classical saying heard about the outcome of urethral stenosis treatment : « once a stricture, always a stricture ¼ is no longer the rule.


La sténose urétrale est définie comme une diminution du calibre de la lumière urétrale qui peut engendrer une diminution du flux urinaire. Cette pathologie est plus fréquente chez l'homme et on l'attribue à de nombreuses causes. Le diagnostic dépend d'une bonne anamnèse, marquée essentiellement par des troubles mictionnels obstructifs et/ou irritatifs, et est confirmé par des examens complémentaires spécifiques. Le traitement peut aller de la prise en charge conservatrice à la chirurgie ouverte, et requiert toujours des chirurgiens spécialisés ainsi qu'un plateau technique adéquat. Ces 25 dernières années, le développement des techniques chirurgicales a permis d'augmenter le taux de succès, ce qui contredit l'adage classique du milieu du siècle dernier : « once a stricture, always a stricture ¼.


Assuntos
Estreitamento Uretral/terapia , Constrição Patológica/complicações , Constrição Patológica/patologia , Humanos , Sintomas do Trato Urinário Inferior/complicações , Resultado do Tratamento , Uretra/patologia , Estreitamento Uretral/complicações , Estreitamento Uretral/diagnóstico
14.
J Urol ; 201(3): 563-572, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30240692

RESUMO

PURPOSE: We sought to characterize a standardized postoperative radiographic and functional voiding trial, and determine its impact on outcomes after substitution urethroplasty. MATERIALS AND METHODS: This is an observational, monocenter study of men who underwent 1-stage ventral onlay buccal mucosal graft urethroplasty for bulbar urethral stricture between January 2009 and December 2016. Patients were stratified by voiding trial success vs failure, including radiographic (extravasation or residual narrowness) and functional (post-void residual volume greater than 100 ml) failure, 21 days postoperatively. End points were voiding trial failure and recurrence-free survival. Regression models were created to determine risk factors of voiding trial failure and evaluate the impact of voiding trial failure on recurrence. RESULTS: The voiding trial succeeded and failed in 437 (85.2%) and 76 (14.8%), respectively, of 513 men. Of the latter men 54 (71.1%) showed evidence of extravasation and 22 (28.9%) had residual narrowness or functional failure. On multivariable logistic regression analyses no preoperative predictor of voiding trial failure was found (all p >0.05). At a median followup of 32 months Kaplan-Meier analyses (log rank test p = 0.033) and multivariable Cox regression analyses (HR 1.86, p = 0.037) revealed an association of voiding trial failure and stricture recurrence. When further stratifying voiding trial failure, residual narrowness or functional failure (HR 4.60, p <0.001) but not extravasation (HR 1.08, p = 0.9) was a risk factor for recurrence. Limitations include the retrospective assessment of investigated end points. CONCLUSIONS: Residual narrowness or functional failure at an early voiding trial after buccal mucosal graft urethroplasty may predict stricture recurrence. Identifying intraoperative complexity factors predicting initial voiding trial failure might be a key to identifying those individuals with early recurrence.


Assuntos
Mucosa Bucal/transplante , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Transtornos Urinários/diagnóstico , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversos , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Humanos , Masculino , Período Pós-Operatório , Procedimentos de Cirurgia Plástica/efeitos adversos , Procedimentos de Cirurgia Plástica/métodos , Recidiva , Uretra/diagnóstico por imagem , Uretra/patologia , Estreitamento Uretral/complicações , Estreitamento Uretral/diagnóstico por imagem , Transtornos Urinários/etiologia
15.
J Urol ; 201(2): 364-370, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30266331

RESUMO

PURPOSE: The purpose of this multi-institutional study was to compare outcomes of transecting and nontransecting anastomotic bulbar urethroplasty. MATERIALS AND METHODS: We performed a retrospective, multi-institutional review of the records of 352 patients who underwent transecting or nontransecting anastomotic bulbar urethroplasty performed by 1 of 4 reconstructive urologists from September 2003 to March 2017. Study outcomes were urethroplasty success, defined as urethral patency greater than 16Fr on cystoscopy; de novo sexual dysfunction assessed at 6 months, defined as a 5-point or greater change in the SHIM (Sexual Health Inventory for Men) or a patient reported adverse change; and 90-day complications, defined as Clavien 2 or greater. When appropriate, comparisons were made between the transecting and nontransecting cohorts using the Mantel-Cox test, the t-test or the chi-square test. RESULTS: Of the 352 patients with a mean stricture length of 1.7 cm (range 0.5 to 5) 258 and 94 underwent transecting and nontransecting anastomotic bulbar urethroplasty, respectively. The overall success rate was 94.9% at a mean followup of 64.2 months (range 6 to 170). Of the patients 7.1% experienced a 90-day complication and 11.6% reported sexual dysfunction. When comparing transecting and nontransecting techniques, there was no difference in success (93.8% vs 97.9%, Mantel-Cox test p = 0.18) or postoperative complications (8.1% vs 4.3%, p = 0.25). Patients treated with transecting anastomotic urethroplasty were more likely to report an adverse change in sexual function (14.3% vs 4.3%, p = 0.008). On multivariate analysis only transecting urethroplasty was associated with sexual dysfunction (p = 0.01) while age (p = 0.29), stricture length (p = 0.42), etiology (p = 0.99) and surgeon (p = 0.88) were not. CONCLUSIONS: Anastomotic urethroplasty is a highly effective surgery with relatively minimal associated morbidity. Nontransecting anastomotic urethroplasty compares quite favorably to the transecting technique and likely reduces the risk of associated sexual dysfunction.


Assuntos
Disfunção Erétil/prevenção & controle , Procedimentos de Cirurgia Plástica/métodos , Complicações Pós-Operatórias/prevenção & controle , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anastomose Cirúrgica/efeitos adversos , Anastomose Cirúrgica/métodos , Cistoscopia/efeitos adversos , Cistoscopia/métodos , Disfunção Erétil/epidemiologia , Disfunção Erétil/etiologia , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Tratamentos com Preservação do Órgão/efeitos adversos , Tratamentos com Preservação do Órgão/métodos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Procedimentos de Cirurgia Plástica/efeitos adversos , Estudos Retrospectivos , Resultado do Tratamento , Uretra/patologia , Estreitamento Uretral/complicações , Adulto Jovem
16.
BMC Med Imaging ; 19(1): 84, 2019 10 29.
Artigo em Inglês | MEDLINE | ID: mdl-31664932

RESUMO

OBJECTIVE: To determine the rate and the distribution of the structural defects in the urinary bladder complicating urethral stricture in men, and to compare the complications observed in the younger patients to those observed in the older patients. METHODS: Retrospectively, case files of patients diagnosed of urethral stricture using retrograde urethrogram (RUG) and voiding cysto-urethrogram (VCUG) from February 2009 to August 2018 were analyzed. Stricture characteristics were outlined. In addition, complicating structural defects in the lower urinary tract proximal to the stricture site were documented. The complicating defects identified in the patients were segregated according to age for any observable associations. Logistic regression analysis was used to define the nature of the association of patient age, stricture site, number and length, with distribution of complicating structural defects. Analyses were done using SPSS® version 20. RESULTS: Within the 10-year review period, 257 of 421 suspected cases of urethral stricture were confirmed. Patients are between 1 and 104 years of age (mean: 50.1 ± 19.1 years; median: 51.0 years IQR 35.0-65.0). Bulbar (34.2%); short segment (62.6%); partial (73.9%) strictures are prevalent. Forty-seven (18.3%) of 257 patients presented with 1 or more complications. Bladder diverticulum (8.6%) and urethra-cutaneous fistula (6.6%) are prevalent complications. The distribution of complications does not vary with age, or with stricture characteristics. CONCLUSION: Presentation with complications is not uncommon. The distribution of these complications does not vary with age or with stricture characteristics.


Assuntos
Fístula Cutânea/epidemiologia , Divertículo/epidemiologia , Estreitamento Uretral/complicações , Estreitamento Uretral/diagnóstico por imagem , Bexiga Urinária/anormalidades , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Fístula Cutânea/etiologia , Divertículo/etiologia , Humanos , Lactente , Modelos Logísticos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Radiografia , Estudos Retrospectivos , Adulto Jovem
17.
Curr Urol Rep ; 19(3): 19, 2018 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-29479640

RESUMO

PURPOSE OF REVIEW: Male urethral stricture disease is characterized by the formation of scar tissue within the urethra resulting in lower urinary tract symptoms, infection, and potentially kidney dysfunction. There is significant variability in clinical practice for the treatment of urethral stricture. We sought to summarize the known data on endoscopic management of urethral stricture disease as part of this larger edition on urethral stricture management. RECENT FINDINGS: Older studies quoted high rates of success with endoscopic management of urethral stricture, including repeated DVIU. There is now evidence to support a limited role of endoscopic intervention in the management of urethral stricture, and especially strong evidence that repeated endoscopic procedures are not effective. There is poor evidence to support the long-term efficacy of endoscopic urethral stricture management. Furthermore, novel advances in adjunctive therapies have not yet demonstrated durable patency. We discuss the limited role of endoscopic management and suggest an algorithm for its use in stricture management.


Assuntos
Endoscopia/métodos , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos , Algoritmos , Dilatação , Humanos , Sintomas do Trato Urinário Inferior/etiologia , Sintomas do Trato Urinário Inferior/cirurgia , Masculino , Recidiva , Estreitamento Uretral/complicações
18.
Curr Urol Rep ; 19(3): 20, 2018 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-29479650

RESUMO

PURPOSE OF REVIEW: Urethral strictures that are refractory to initial management present unique challenges to the reconstructive surgeon. Treatment trends have shifted as new tissue resources are becoming available. There is renewed interest in old methods as skill and technique have improved. We describe the scope of the surgical armamentarium available to develop creative approaches and successful outcomes. RECENT FINDINGS: We discuss techniques to maximize the availability of oral mucosa, harvest and use of rectal mucosa, and developments in tissue engineering. Evolving methods to assess success of repair are also described. Urethral reconstruction for refractory urethral strictures requires proficiency with multiple methods as these strictures often require combining techniques for successful treatment.


Assuntos
Procedimentos de Cirurgia Plástica/métodos , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Autoenxertos , Humanos , Mucosa Intestinal/transplante , Masculino , Mucosa Bucal/transplante , Procedimentos de Cirurgia Plástica/efeitos adversos , Reto/transplante , Retalhos Cirúrgicos , Engenharia Tecidual , Coleta de Tecidos e Órgãos , Estreitamento Uretral/complicações
19.
Acta Chir Belg ; 118(6): 398-401, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30205751

RESUMO

BACKGROUND: Fistula formation in hidradenitis suppurativa follows an uncontrolled infection with subcutaneous tracts leading to 'watering-can' or 'pus-pot' perineum. Closure of this type of fistula implies major surgery and is bound to fail in refractory inflammatory environment. Minimally invasive techniques have become the first line of choice in every type of surgery. METHODS: Fistula-tract Laser Closure (FiLaC™, Biolitec, Germany) is a novel technique already reported to have been used in the treatment of fistula-in-ano and pilonidal sinus. It consists of blind cauterization and obliteration of the fistula tract from the inside by means of a radial-emitting laser probe. We present two patients who underwent surgery for urethroperineal fistula using this technique. RESULTS: In both cases, the fistula tracts were completely closed after 3 months of follow-up. The wounds had healed smoothly and complete resolution of symptoms was noted. CONCLUSIONS: The use of FiLaC™ for the treatment of urethroperineal fistula is feasible and safe. The minimally invasive nature of the technique and limited postoperative pain permit daycare surgery.


Assuntos
Fístula Cutânea/cirurgia , Fístula/etiologia , Terapia a Laser/métodos , Períneo/patologia , Doenças Uretrais/etiologia , Estreitamento Uretral/complicações , Fístula Cutânea/etiologia , Fístula/cirurgia , Hidradenite Supurativa/complicações , Hidradenite Supurativa/diagnóstico , Humanos , Terapia a Laser/instrumentação , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Períneo/cirurgia , Prognóstico , Medição de Risco , Resultado do Tratamento , Doenças Uretrais/cirurgia , Estreitamento Uretral/cirurgia , Técnicas de Fechamento de Ferimentos/instrumentação , Cicatrização/fisiologia
20.
Urologiia ; (1): 96-100, 2018 Mar.
Artigo em Russo | MEDLINE | ID: mdl-29634141

RESUMO

INTRODUCTION: Testosterone plays an important role in the functioning of various organs and systems of the male body. Its diagnostic and prognostic values are studied both in urological diseases and in the patients undergoing non-urologic surgery. AIM: To investigate changes in testosterone level in patients with urethral strictures (US) depending on its baseline level, the cause of US, the age of patients and the number of surgeries. MATERIALS AND METHODS: The study comprised 30 patients aged 19-63 years with traumatic (76.7%) and inflammatory (23.3%) US. Primary and recurrent US were diagnosed in 25 (83.3%) and 5 (16.7%) patients, respectively. Nineteen (63.3%) patients underwent excision and primary anastomosis, while replacement urethroplasty was performed in 11 (36.7%) patients. In addition to the standard diagnostic work-up, all patients were tested for total serum testosterone 24 hours prior to surgery and at 1, 3, 7, 14 days after the operation. RESULTS: 33.3% of men with US had a testosterone deficiency in the absence of any testicular or endocrine injuries and diseases. Surgery was associated with a drop in testosteronemia in 83.3% of patients. The degree of postoperative testosterone level decline and its changes were significantly influenced by the age of patients and the number of operations. Men who had baseline testosterone deficiency and underwent repeat surgeries remained in a hypogonadal state throughout the postoperative period. CONCLUSION: Investigating the clinical value of testosterone in men with US and the risks of their surgical treatment associated with testosterone deficiency will provide insight into the role of testosterone in the treatment of this condition and the decision-making regarding pharmacological correction of testosterone deficiency in patients undergoing surgery for US.


Assuntos
Hipogonadismo/sangue , Procedimentos de Cirurgia Plástica , Testosterona/deficiência , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos , Adulto , Humanos , Hipogonadismo/etiologia , Hipogonadismo/prevenção & controle , Masculino , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/efeitos adversos , Reoperação , Testosterona/administração & dosagem , Testosterona/sangue , Resultado do Tratamento , Estreitamento Uretral/complicações , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversos , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa