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2.
Int. braz. j. urol ; 48(2): 371-372, March-Apr. 2022.
Article in English | LILACS | ID: biblio-1364945

ABSTRACT

ABSTRACT Introduction: Tissue transfer has been used in urethral reconstruction for decades, and several grafts have been described (1, 2). The ideal graft would have optimal tissue characteristics and lead to minimal morbidity at the donor site. Urethroplasty using bladder mucosa was first described by Memmelaar in 1947 (3). The main limitation in using bladder mucosal grafts has been the invasiveness of open harvesting (4). We describe an endoscopic technique using Holmium: YAG laser to harvest bladder mucosal graft for substitution urethroplasty. Methodology: A 33-year-old male with no history of urethral instrumentation, trauma, or infection presented with obstructive lower urinary tract symptoms. On retrograde urethrogram a 6cm bulbar urethral stricture was identified. Several options were discussed, and the patient opted for a one-sided onlay dorsal urethroplasty (5) using a bladder mucosal graft. Equipment used to harvest the graft included an 18.5Fr continuous flow laser endoscope with a Kuntz working element (RZ) and a 60W Holmium Laser (Quanta) with 550μm laser fiber. The procedure was started by making a perineal incision, urethral mobilization and incision of the stricture segment. The laser endoscope was then introduced via the perineum. Settings of 0.5J, 30 Hz, and long pulse were used and a 7 x 2.5cm graft was harvested from the posterior bladder wall. Hemostasis of the harvest site was performed. The bladder mucosal graft was thinned in similar fashion to a buccal mucosal graft and sutured as per previously described techniques. Conclusion: Endoscopic Holmium Laser harvesting of bladder mucosal graft is feasible and may allow this graft to become an alternative to buccal mucosa. Further studies are required to define its role in urethral reconstruction.


Subject(s)
Humans , Male , Adult , Urethral Stricture/surgery , Lasers, Solid-State/therapeutic use , Urethra/surgery , Urinary Bladder/surgery , Mouth Mucosa/transplantation
4.
Rev. Assoc. Med. Bras. (1992) ; 68(1): 50-55, Jan. 2022. tab
Article in English | LILACS | ID: biblio-1360703

ABSTRACT

SUMMARY OBJECTIVE: We aimed to investigate the rate of urethral stricture development, predictor factors, and the reliability following bipolar transurethral resection of the prostate. METHODS: A total of 124 patients participated in this study. Patient data were retrospectively reviewed. The patients were divided into group 1 (those who developed urethral stricture) and group 2 (those who did not develop urethral stricture). Annual checkups were performed after the postoperative months 1 and 6. The patients were checked by uroflowmetry + post-voiding residue and international index of erectile function. We evaluated the complications that developed during the perioperative period according to the Clavien system. RESULTS: Urethral stricture developed in 10.5% (13/124) of the patients. It was found that patients who underwent transurethral resection of the prostate for the second time (p=0.007), patients with a preoperative catheter or history of catheter insertion (p=0.009), patients with high preoperative median white blood cell (103) counts (p=0.013), and patients with long postoperative catheterization time had a higher rate of urethral stricture after bipolar transurethral resection of the prostate (p=0.046). No grade 4 and grade 5 complications were observed according to the Clavien system in patients. CONCLUSION: Factors such as second transurethral resection of the prostate surgery, history of preoperative catheter insertion, high postoperative white blood cell count, and long postoperative catheterization time increase the risk of urethral stricture after bipolar transurethral resection of the prostate.


Subject(s)
Humans , Male , Prostatic Hyperplasia/surgery , Prostatic Hyperplasia/complications , Urethral Stricture/surgery , Urethral Stricture/etiology , Transurethral Resection of Prostate/adverse effects , Reproducibility of Results , Retrospective Studies
6.
Int. braz. j. urol ; 47(4): 829-840, Jul.-Aug. 2021. tab, graf
Article in English | LILACS | ID: biblio-1286765

ABSTRACT

ABSTRACT Objective: The diagnosis and treatment of female urethral stricture disease (FUSD) are practiced variably due to the scarcity of data on evaluation, variable definitions, and lack of long-term surgical outcomes. FUSD is difficult to rule out solely on the basis of a successful calibration with 14F catheter. In this study, we have tried to characterize the variable clinical presentation of FUSD, the diagnostic utility of calibration, videourodynamic study(VUDS), and urethroscopy in planning surgical management. Materials and Methods: A retrospective review of records of 16 patients who underwent surgical management of FUSD was analyzed. The clinical history, examination findings, and the results of all the investigations (including uroflowmetry, VUDS findings, urethroscopy) they underwent, the procedures they had undergone, and the follow-up data were studied. Results: A total of 16 patients underwent surgical management of FUSD. 13 out of 16 patients had successful calibration with 14F catheter on the initial presentation. These 13 patients on VUDS demonstrated significant BOO and had variable stigmata of stricture on urethroscopy. The mean IPSS, flow rate, and PVR at presentation and after urethroplasty were 23.88±4.95, 7.72±4.25mL/s, 117.06±74.46mL and 3.50±3.44, 22.34±4.80mL/s, and 12.50±8.50mL, respectively. (p <0.05). The mean flow rate after endo dilation(17F) (n=12) was 11.4±2.5mL/s while after urethroplasty improved to 20.30±4.19mL/s and was statistically significant(p <0.05). Conclusions: An adept correlation between clinical assessment, urethroscopy findings, and VUDS is key in objectively identifying FUSD and planning surgical management. A good caliber of the urethra is not sufficient enough to rule out a significant obstruction due to FUSD. Early urethroplasty provides significantly better outcomes in patients who have failed dilation as a treatment.


Subject(s)
Humans , Male , Female , Urethral Stricture/surgery , Urologic Surgical Procedures, Male , Urethra/surgery , Calibration , Retrospective Studies , Treatment Outcome
7.
Int. braz. j. urol ; 47(4): 856-860, Jul.-Aug. 2021. graf
Article in English | LILACS | ID: biblio-1286774

ABSTRACT

ABSTRACT The management of complex urethral stenosis may involve different surgical techniques. As retraction of the graft may account for surgical failure, this risk increases in patients with more extensive stenosis requiring a graft of greater diameter. Although double grafts have already been used to maximize success in these cases, we propose a modified technique for urethroplasty with longitudinal urethral incision. The hypothesis was that this technique would increase the lumen by using only a urethral incision on the dorsal surface. Two patients presenting with recurrent urethral stenosis underwent urethroplasty using a double graft of oral mucosa that preserves the integrity of the spongy tissue and allows ventral inlay graft fixation using a midline relaxing incision in the portion of the urethra with stenosis. In both cases, the urethrocystoscopy and uroflowmetry performed after surgery showed a pervious and complacent urethra. After four and six months of follow-up, the postoperative outcomes were satisfactory for both patients. Further studies involving larger numbers of patients and long-term follow-up are required to evaluate the effectiveness of this method.


Subject(s)
Humans , Male , Female , Urethral Stricture/surgery , Urologic Surgical Procedures, Male , Urethra/surgery , Retrospective Studies , Treatment Outcome , Mouth Mucosa/surgery
9.
São Paulo med. j ; 139(3): 241-250, May-June 2021. tab, graf
Article in English | LILACS | ID: biblio-1252244

ABSTRACT

ABSTRACT BACKGROUND: Vesicourethral anastomotic stenosis (VUAS) following retropubic radical prostatectomy (RRP) significantly worsens quality of life. OBJECTIVES: To investigate the relationship between proliferative hypertrophic scar formation and VUAS, and predict more appropriate surgical intervention for preventing recurrent VUAS. DESIGN AND SETTING: Retrospective cross-sectional single-center study on data covering January 2009 to December 2019. METHODS: Among 573 male patients who underwent RRP due to prostate cancer, 80 with VUAS were included. They were divided into two groups according to VUAS treatment method: dilatation using Amplatz renal dilators (39 patients); or endoscopic bladder neck incision/resection (41 patients). The Vancouver scar scale (VSS) was used to evaluate the characteristics of scars that occurred for any reason before development of VUAS. RESULTS: Over a median follow-up of 72 months (range 12-105) after RRP, 17 patients (21.3%) had recurrence of VUAS. Although the treatment success rates were similar (79.5% versus 78.0%; P = 0.875), receiver operating characteristic (ROC) curve analysis indicated that dilatation using Amplatz dilators rather than endoscopic bladder neck incision/resection in patients with VSS scores 4, 5 and 6 may significantly reduce VUAS recurrence. A strong positive relationship was observed between VSS and total number of VUAS occurrences (r: 0.689; P < 0.001). VSS score (odds ratio, OR: 5.380; P < 0.001) and time until occurrence of VUAS (OR: 1.628; P = 0.008) were the most significant predictors for VUAS recurrence. CONCLUSIONS: VSS score can be used as a prediction tool for choosing more appropriate surgical intervention, for preventing recurrent VUAS.


Subject(s)
Humans , Male , Urethral Stricture/surgery , Urethral Stricture/etiology , Urethral Stricture/prevention & control , Cicatrix, Hypertrophic , Postoperative Complications/prevention & control , Prostatectomy/adverse effects , Quality of Life , Urethra/surgery , Cross-Sectional Studies , Retrospective Studies , Constriction, Pathologic , Neoplasm Recurrence, Local/prevention & control
10.
Int. braz. j. urol ; 47(2): 237-250, Mar.-Apr. 2021. tab, graf
Article in English | LILACS | ID: biblio-1154443

ABSTRACT

ABSTRACT Objective: The objective is to summarize and characterize the long-term success of anterior augmentation urethroplasty in published series. The current literature on AU consists largely of retrospective series reporting intermediate follow-up and incompletely characterize the long term outcomes of AU. Materials and Methods: A systematic literature review was performed consistent with PRISMA guidelines to characterize long-term outcomes of AU with a minimum upper limit follow-up of 100 months. Penile/preputial skin flaps and graft and oral mucosal graft urethroplasties were included. The primary outcome was stricture-free survival for one-stage AU. Secondary analysis evaluated differences in outcomes based on two failure definitions: the need for intervention versus presence of recurrent stricture on cystoscopy or urethrography. Hazard rates were induced from the reported failure rates of one-stage AU and fixed and random effect models were fitted to the data. Additional subset analysis, removing potential confounders (lichen sclerosus, hypospadias and penile skin graft), was performed. Results: Ten studies met inclusion criteria, and two studies reported separate outcomes for grafts and flaps, and thus were included separately in the analysis. The mean hazard rate across all studies was 0.0044, the corresponding survival rates at 1 year 0.948, 5 years 0.766, 10 years 0.587, and 15 years 0.45. Subset analysis of the 4 select and homogeneous studies noted 1, 5, 10, and 15 years survival rates of 0.97, 0.96, 0.74, and 0.63, respectively. Conclusions: The long-term success rates of augmentation urethroplasty are appear to be worse than previously appreciated and patients should be counseled accordingly.


Subject(s)
Humans , Male , Urethral Stricture/surgery , Urologic Surgical Procedures, Male , Urethra/surgery , Retrospective Studies , Treatment Outcome , Mouth Mucosa
11.
Rev. argent. urol. (1990) ; 86(1): 30-34, 20210000. ilus
Article in Spanish | BINACIS, UNISALUD, LILACS | ID: biblio-1141498

ABSTRACT

INTRODUCCIÓN/OBJETIVO: La estrechez uretral puede causar síntomas miccionales, dolor, disfunción vesical y eyaculatoria. La tasa de complicaciones en uretroplastía anterior es baja. El principal objetivo es evaluar complicaciones del posoperatorio (pop) inmediato (dentro de los 30 días pop). El objetivo secundario es valorar la relación entre complicaciones y la tasa de recaída. MATERIALES Y MÉTODO: Se realizó una revisión retrospectiva de las uretroplastías anteriores realizadas entre octubre del 2012 y junio del 2017. Se valoró: reinternación, reingreso a cirugía, infarto agudo de miocardio, tromboembolismo de pulmón, trombosis venosa profunda, óbito, infecciones, dehiscencia de herida, hematomas, sangrados, etc. Se definió recaída a la necesidad de realizar cualquier instrumentación uretral secundaria a la uretroplastía. Las variables se analizaron estadísticamente con Chi square y Mann-Whitney U test. RESULTADOS: Se incluyeron 92 pacientes, con un seguimiento mínimo de 12 meses. Las edades fueron de 18 a 88 años (mediana, 61,5 años). En 58 pacientes, se utilizaron transferencia de tejidos (27 injertos y 31 colgajos). La longitud de la estrechez fue desde 1-15 cm (media, 3,25 cm). La iatrogénica (56%) fue la etiología más frecuente. 56 pacientes (63%) tenían tratamientos previos. La tasa de complicaciones pop inmediato fue del 32%, las infecciones fueron las más frecuentes. Según Clavien, se clasificaron: I: 40%; II: 47%; III: 10%; IV: 3%. Hubo 17 recaídas (18%), 13 dentro de los primeros 6 meses del pop. De los pacientes que presentaron complicaciones, recayó el 23%; solo 16% de los que no las presentaron (p: 0,4). Aquellos pacientes con complicaciones graves presentaron mayor tasa de recaída (p: 0,2). CONCLUSIÓN: La tasa de complicaciones pop inmediata de uretroplastía anterior fue de 32%; las infecciones fueron las más frecuentes. La mayoría fue Clavien I y II. La recaída fue mayor en aquellos pacientes que sufrieron complicaciones en pop inmediato.


INTRODUCCION/OBJECTIVE: Urethral stenosis can cause mictional symptoms, pain, bladder dysfunction and ejaculatory problems. Complications rate in anterior urethroplasty is low. Main objetive is to evaluate early post operatory complications Secondary objetive is to assess the relationship between complications and recurrence rate. MATERIALS AND METHODS: We performed a restrospective review of our anterior urethroplasty database between October 2012 and June 2017. We recorded: patients readmission, return to operating room, acute myocardial infarction, pulmonary embolism, deep venous thrombosis, death, infections, wound dehiscense, hematomas, bleedings, etc. We defined recurrence as any urethral instrumentation after urethroplasty. Variables were analyzed using Chi Square and Mann Whitney U test. RESULTS: 92 patients were included in the study with at least 12 months follow up. Age range was between 18-88 years. (median 61,5 years) Substitution urethroplasty were performed in 58 patients (grafts 27 and flaps 31) Urethral stenosis lenght range was between 1 and 15 cm (mean 3,25cm) Most frequent cause of urethral stenosis was iatrogenic (56%) 56 patients underwent previous treatment (63%) Complication rate in early post operative period was 32%, most of them infections. Clavien clasiffication: I: 40%; II: 47%; III: 10%; IV: 3%. There were 17 recurrences (18%), 13 during the first 6 months after surgery. 23 % of patients with complications had recurrence and only 16% of patients without, had recurrence (p:0,4) Patients with serious complications had greater recurrence rate (p: 0,2) CONCLUSION: Recurrence rate in early complications of anterior urethroplasty was 32%, most of them infections. Clavien I and II are the most frequent. Recurrence was greater in patients who suffered early complications


Subject(s)
Humans , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Postoperative Complications/epidemiology , Recurrence , Urologic Surgical Procedures/adverse effects , Urologic Surgical Procedures/methods , Urethral Stricture/surgery , Retrospective Studies , Treatment Outcome
12.
Journal of Peking University(Health Sciences) ; (6): 798-802, 2021.
Article in Chinese | WPRIM | ID: wpr-942256

ABSTRACT

OBJECTIVE@#To summarize the clinical outcomes of partial pubectomy assisted anastomotic urethroplasty for male patients with pelvic fracture urethral distraction defect (PFUDD) and discuss the skills of partial pubectomy.@*METHODS@#The clinical data of 63 male patients with PFUDD were retrospective reviewed. The procedure of the anastomotic urethroplasty was as follows: (1) circumferentially mobilizing the bulbar urethra; (2) separating the corporal bodies; (3) performing the urethral anastomosis after partial pubectomy and exposure of the healthy two ends of the urethra.@*RESULTS@#The mean age of the patients was (39.2±15.6) years (range: 15-72 years). The median time between incidents and operation was 15 months (range: 3-240 months) and the mean length of stricture was (3.85±0.91) cm (range: 1.5-5.5 cm). All the patients had undergone suprapubic cystostomy in acute setting. Thirteen patients (20.6%) were re-do cases and the patients who had undergone dilation, direct vision internal urethrotomy (DVIU), and open primary realignment were 22 (34.9%), 8 (12.7%), and 8 (12.7%), respectively. Assisted with partial pubectomy, the anastomotic urethroplasty had been successfully performed in all the patients. The mean time of operation was (160.2±28.1) min (110-210 min), and the mean evaluated blood loss was (261.1±130.3) mL (100-800 mL). There were 3 cases (4.8%) with perioperative blood transfusions. The postoperative complications were bleeding and urinary tract infection, which were controlled conservatively. The mean maximum urine flow rate was (23.7±7.4) mL/s (15.0-48.2 mL/s) after removing the catheters 4 weeks after urethroplasty. The median follow-up was 23 months (12-37 months). The urethroscopy showed 2 cases of stricture recurrences and 1 case of iatrogenic penile urethral stricture due the symptoms of urinary tract infection and decreased urine flow and all of them were successfully managed with dilation.@*CONCLUSION@#Partial pubectomy can effectively reduce the gap between the ends of the urethra and promote tension-free anastomosis during the anastomotic urethroplsty for patients with PFUDD. The skills of the procedure include good exposure of the anterior surface of pubic symphysis between the separated corporal bodies, carefully mobilizing and securing the deep dorsal vein of the penis, removing the partial pubic bone and the harden scar beneath the pubic bone for good exposure of the proximal urethral end.


Subject(s)
Adolescent , Adult , Aged , Humans , Male , Middle Aged , Young Adult , Anastomosis, Surgical , Pelvic Bones/surgery , Retrospective Studies , Treatment Outcome , Urethra/surgery , Urethral Stricture/surgery , Urologic Surgical Procedures, Male
13.
Int. braz. j. urol ; 46(6): 962-970, Nov.-Dec. 2020. tab, graf
Article in English | LILACS | ID: biblio-1134260

ABSTRACT

ABSTRACT Objective To examine the impact of obesity on perioperative outcomes and urethral stricture recurrence after anterior urethroplasty. Material and Methods We reviewed our prospectively maintained single-surgeon database to identify men with anterior urethral strictures who had undergone anastomotic or augmentation urethroplasty between October 2012 and March 2018. In all, 210 patients were included for primary analysis of perioperative outcomes, while 193 patients with at least 12 months follow-up were included for secondary analysis of stricture recurrence. Patients grouped by BMI were compared using univariate and multivariate analyses for perioperative outcomes and log rank testing for recurrence-free survival. Results Overall, 41% (n=86) of patients were obese and 58.6% (n=123) had bulbar urethral strictures. Obese patients had significantly longer urethral strictures (mean=6.7cm±4.7) than nonobese patients (p <0.001). Though urethroplasty in obese patients was associated with increased estimated blood loss (EBL) relative to normal BMI patients on both univariate (p=0.003) and multivariate (p <0.001) analyses, there was no difference in operative time, length of stay, or complication rate between BMI groups. At a mean follow-up interval of 36.7 months, 15% (n=29) of patients had stricture recurrence, yet recurrence-free survival was not significantly different between groups (log rank p=0.299). Dorsal augmentation urethroplasty resulted in significantly fewer recurrences in obese patients compared to nonobese patients (p=0.036). Conclusion Despite the association with increased urethral stricture length and EBL, obesity is not predictive of adverse perioperative outcomes or stricture recurrence. Obese patients should be offered urethral reconstruction, but patient selection and preoperative counseling remain imperative.


Subject(s)
Humans , Male , Adult , Aged , Urologic Surgical Procedures, Male , Urethral Stricture/surgery , Recurrence , Urethra/surgery , Retrospective Studies , Treatment Outcome , Middle Aged , Neoplasm Recurrence, Local , Obesity/complications
14.
Int. braz. j. urol ; 46(1): 83-89, Jan.-Feb. 2020. tab, graf
Article in English | LILACS | ID: biblio-1056362

ABSTRACT

ABSTRACT Purpose: Obliterative urethral stenosis is a type of urethral lesion that compromises the whole corpus spongiosum's circumference. We present our experience in resolving complex long segment urethral obliteration in a single procedure using a combination of dorsal onlay oral mucosa graft (OMG) and ventral fasciocutaneous penile skin flap. Materials and methods: A prospectively maintained database was reviewed, which included data of men presenting long, obliterative strictures. Patients were excluded if they were lost to follow-up before one year. Failure was defined as need for further urethral instrumentation. The surgical technique used consisted on the fixation of OMG to the tunica albuginea of the corpus cavernosum, thus creating a new urethral plate. Penile or foreskin flaps were employed to complete the ventral aspect. Postoperative follow-up was done with a voiding cystourethrography at week 3. Results: A total of 21 patients were included with a median age of 49 years. Mean follow-up was 25 months. Failure was found for 3 patients (2 of them needing dilations and only one required a new urethral reconstruction). Conclusion: Single stage combination of dorsal OMG with ventral fasciocutaneous penile flap showed good results for selected patients affected with obliterative urethral stenosis.


Subject(s)
Humans , Male , Penis/surgery , Surgical Flaps/transplantation , Urethral Stricture/surgery , Plastic Surgery Procedures/methods , Mouth Mucosa/transplantation , Prospective Studies , Reproducibility of Results , Follow-Up Studies , Treatment Outcome , Kaplan-Meier Estimate , Operative Time , Middle Aged
16.
Int. braz. j. urol ; 46(4): 511-518, 2020. graf
Article in English | LILACS | ID: biblio-1134202

ABSTRACT

ABSTRACT The surgical treatment of bulbar urethral strictures is still one of the most challenging reconstructive-surgery problems. Bulbar urethral strictures are usually categorized as traumatic and non-traumatic strictures depending on the aetiology. The traumatic strictures are caused by trauma and they determine disruption of the urethra with obliteration of the urethral lumen, ending with fibrotic gaps between the urethral ends. Differently, the non-traumatic urethral strictures are mainly caused by catheterization, instrumentation, and infection, or they can also be idiopathic. They are usually associated with spongiofibrosis of the segment of the urethra that has been involved. Worldwide, two different surgical approaches are currently adopted for bulbar urethral repair: transecting techniques with end-to-end anastomosis and non-transecting techniques followed by grafting. Traumatic obliterated strictures require transection of the urethra allowing complete removal of the fibrotic tissue that involves the urethral ends. Conversely, non-traumatic, non-obliterated urethral strictures require augmentation of the urethral plate using oral mucosa grafts. Nowadays, it is still difficult to choose the correct surgical management for non-obliterated bulbar stricture repair. Indeed, different surgical techniques have been proposed (pedicled flap vs free graft, dorsal vs ventral placement of the graft, non-transecting technique using or non-using free graft, etc.) but none emerged as the best solution since all techniques have showed similar success and complication rates. Consequently, the final choice is still based on surgeon's preferences and patient's characteristics. Within the current manuscript, we like to present some of our tips and tricks that we developed along our prolonged surgical experience on the treatment of bulbar urethral strictures. These might be of interest for surgeons that approach this complex surgery. Moreover, our suggestions want to be useful regardless the type of chosen technique being adaptable for different scenario.


Subject(s)
Humans , Male , Urethral Stricture/surgery , Urethral Stricture/etiology , Plastic Surgery Procedures , Urologic Surgical Procedures, Male , Urethra/surgery , Treatment Outcome , Mouth Mucosa
17.
Rev. Assoc. Med. Bras. (1992) ; 65(12): 1448-1453, Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1057092

ABSTRACT

SUMMARY INTRODUCTION Due to spongiofibrosis and inflammatory processes underlying the pathogenesis of urethral stricture, it is possible that the neutrophil-lymphocyte ratio (NLR) may give essential information about the course of the disease and recurrence possibilities. Our study aims to evaluate the correlation between NLR and recurrence rates. METHODS A total of 512 patients who underwent direct visual internal urethrotomy (DVIU) due to urethral stricture in our clinic between February 2010 and January 2018 were evaluated retrospectively. RESULTS The median follow up for non-recurrent and recurrent groups after DVIU was 30 and 36 months, respectively. During the follow-up, 280 (54.7%) of the patients had recurrences, and 232 (45,3%) had no recurrences. The mean time for recurrence after DVIU was 6,5±1,4 months, with a range of 1-36 months. The mean NLR in the non-recurrence group was 2,02±0,87, with a median of 1.9, and 3,66±2,30, with a median of 3 in the recurrence group. A highly significant statistical difference was observed between two groups in terms of neutrophil count and NLR (p: 0.000 - both). The area under curve value for NLR was 0.767, with a standard error of 0.021 (95% CI 0.727-0.808). The cut-off value of NLR was determined as 2.25, with a 70% sensitivity and 67,7% specificity. CONCLUSION By using NLR, the inflammatory features of the urethral tissue can be predicted, and possible recurrences after surgery can be estimated. Consequently, open urethroplasty techniques can be used in cases with a significant NLR value instead of the recurrent endoscopic procedure.


RESUMO INTRODUÇÃO Devido à espongiofibrose e processos inflamatórios subjacentes à patogênese da estenose uretral, pode-se pensar que a relação de linfócitos neutrofílicos (NLR) pode fornecer informações essenciais sobre o curso da doença e as possibilidades de recorrência. O objetivo do nosso estudo é avaliar a correlação entre NLR e taxas de recorrência. MÉTODOS Quinhentos e doze pacientes submetidos à uretrotomia interna visual direta (DVIU) devido à estenose uretral em nossa clínica entre as datas de fevereiro de 2010 e janeiro de 2018 foram avaliados retrospectivamente. RESULTADOS A mediana de acompanhamento para os grupos não recorrentes e recorrentes após a DVIU foi de 30 e 36 meses, respectivamente. Durante o seguimento, 280 (54,7%) dos pacientes tiveram recidivas e 232 (45,3%) não tiveram recidivas. O tempo médio de recorrência após a DVIU foi de 6,5±1,4 mês, com variação de 1-36 meses. A média da RNL no grupo sem recorrência foi de 2,02±0,87 com mediana de 1,9 e 3,66±2,30 com mediana de 3 no grupo com recidiva. Uma diferença estatística altamente significativa foi observada entre dois grupos em termos de contagem de neutrófilos e NLR (p: 0,000 - ambos). A área sob o valor da curva para NLR foi de 0,767 com um erro padrão de 0,021 (IC 95% 0,727-0,808). Valor de corte de NLR determinado como 2,25 com uma sensibilidade de 70%, especificidade de 67,7%. CONCLUSÃO Ao utilizar a RNL, as características inflamatórias do tecido uretral podem ser previstas e possíveis recidivas após a cirurgia podem ser estimadas. Dessa forma, técnicas de uretroplastia aberta podem ser usadas em casos com valor significativo de NLR em vez de procedimento endoscópico recorrente.


Subject(s)
Humans , Adult , Aged , Young Adult , Urethral Stricture/blood , Lymphocyte Count/methods , Neutrophils , Recurrence , Time Factors , Urethra/surgery , Urethral Stricture/surgery , Retrospective Studies , ROC Curve , Follow-Up Studies , Treatment Outcome , Statistics, Nonparametric , Middle Aged
18.
Int. braz. j. urol ; 45(5): 1057-1063, Sept.-Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1040063

ABSTRACT

ABSTRACT Purpose Penile skin flap uretroplasty is a useful technique for a long urethral stricture due to the ample length and surgical handling characteristics. We investigated the surgical technique and initial results of uretroplasty for anterior urethral strictures using a dorsal penile skin flap. Patients and methods From January 2003 to January 2018, a total of 77 patients underwent substitution urethroplasty using dorsal penile skin flap for bulbar urethral strictures in our institution. All patients were assessed preoperatively, and followed postoperatively by physical examination, urinalysis, retrograde and voiding urethrography, uroflowmetry and post-void residual urine measurement. Success was defined as no requirement of additional urethral instrumentation. Results The mean age was 45 years (10-87). The mean stricture length was 5cm (3-10cm). The mean flap length was 6cm. Urinary fistula was the most common postoperative complication. The mean follow-up was 60 months (6-120). The overall success rate was 88%. Recurrent strictures were found in 4 patients (5%) at 1 year. At 3 year follow-up, 5 (7%) more patients had recurrences. All recurrences were managed by internal urethrotomy. Conclusions Substitution urethroplasty using penile skin flap appear to be a safe and efficient technique for the treatment of a long and complex anterior urethral stricture. It provides encouraging cosmetic and functional results.


Subject(s)
Humans , Male , Child , Adolescent , Adult , Aged , Aged, 80 and over , Young Adult , Penis/surgery , Surgical Flaps/transplantation , Urethral Stricture/surgery , Skin Transplantation/methods , Postoperative Complications , Recurrence , Reproducibility of Results , Retrospective Studies , Treatment Outcome , Middle Aged
19.
Int. braz. j. urol ; 45(5): 981-988, Sept.-Dec. 2019. tab
Article in English | LILACS | ID: biblio-1040089

ABSTRACT

ABSTRACT Objectives To compare and assess various outcomes and success of buccal mucosal graft urethroplasty (BMGU) in patients with CKD versus patients having normal renal function. Material and Methods This was a retrospective, single centre study, during period 2013 to 2017. Patients were grouped into two groups. Group 1 had patients with estimated Glomerular Filtration Rate (eGFR)>60mL/min/1.73m2 while group 2 had patients with eGFR <60mL/min/1.73m2. eGFR was calculated according to the MDRD equation. The two groups were compared with regard to various outcomes like length, location of stricture, technique of graft placement, intra-operative blood loss (haemoglobin drop), duration of hospital stay, post-operative complications and recurrence. Results A total of 223 patients were included in study with group 1 had 130 patients and group 2 had 93 patients. Mean age of patients with CKD were higher (47.49 years versus 29.13 years). The mean follow-up period was comparable between both groups (23.29 months and 22.54 months respectively). Patients with CKD had more post-operative Clavien Grade 2 or higher complications (p=0.01) and a greater recurrence rates (p<0.001) than in non-CKD patients. On multivariate analysis, age and CKD status was significant predictor of urethroplasty success (p=0.004) (OR= 14.98 (1.952-114.94, 95% CI). Conclusions CKD patients are more prone to post-operative complications in terms of wound infection, graft uptake and graft failure and higher recurrence rates following BMGU.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Young Adult , Urologic Surgical Procedures/methods , Urethra/surgery , Urethral Stricture/surgery , Renal Insufficiency, Chronic/physiopathology , Mouth Mucosa/transplantation , Postoperative Complications/etiology , Recurrence , Urologic Surgical Procedures/adverse effects , Multivariate Analysis , Retrospective Studies , Risk Factors , Treatment Outcome , Renal Insufficiency, Chronic/complications , Glomerular Filtration Rate , Middle Aged
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