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1.
World J Urol ; 39(9): 3549-3554, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33582831

RESUMO

PURPOSE: Buccal mucosa graft (BMG) is long used as favoured substitute by most reconstructive surgeons for substitution urethroplasty (SU). Though inner preputial skin graft (IPG) was described even earlier than BMG, its usage lately has fallen out of favour. The aim of the study was to evaluate the outcome of a SU with IPG from a tertiary care centre. METHODS: A retrospective analysis of prospectively maintained clinical data was conducted at our tertiary care centre enrolling 80 patients with anterior urethral stricture from January 2015 to January 2018. Patients were evaluated for the aetiology, length and site of the urethral stricture. All patients underwent dorsolateral SU with IPG. Post-operative assessment including uroflowmetry and sexual outcomes using IIEF and MSHQ-EJD questionnaires was done at 3 weeks, 3 months, 12 months and half-yearly thereafter. Success was defined by the stable maximum urinary flow value > 14 ml/s or urethral calibration with 16 French Foley catheter. RESULTS: Mean age of patients was 40 years (18-69). The most common aetiology was post-instrumentation (65%) and 60% had stricture at penobulbar site. Mean stricture length was 65 mm. At a mean follow-up of 48 months (range 30-66 months), successful outcomes were seen in 69/80 (87%). Patients with failure were managed with optical internal urethrotomy (OIU). Uroflowmetry and obstructive symptoms significantly improved and sexual function remained unaffected using IPG for SU. CONCLUSIONS: Preputial graft is a tissue familiar to the urologist, located very close to the surgical field, easily harvested and operated under regional anaesthesia. Overall success outcomes are acceptable to BMG urethroplasty.


Assuntos
Prepúcio do Pênis/transplante , Estreitamento Uretral/cirurgia , Adolescente , Adulto , Idoso , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Centros de Atenção Terciária , Fatores de Tempo , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Adulto Jovem
2.
Urol Int ; 104(5-6): 391-395, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32023621

RESUMO

PURPOSE: To evaluate the clinical data and treatment outcomes of 3 different methods for redo hypospadias surgery. PATIENTS AND METHODS: We retrospectively reviewed the data of 39 patients with redo hypospadias surgery between January 2010 and April 2019 at our clinic. A ventral preputial onlay flap, a preputial tubular flap, and a full thickness skin tubular graft were used in redo hypospadias surgery. We evaluated these methods regarding age, number, and type of previous repairs, catheter time, chordee, length of the urethral defect, operation time, complications, and follow-up results. T tests and Fisher's exact tests were used to compare differences between groups. RESULTS: The mean operation age of the patients was 5.23 years. Sixteen patients had a single, 21 had 2, and 2 patients had 3 previous repairs. The position of the urethral meatus was perineal in 2, penoscrotal in 6, mid penile in 21, and distal penile in 10 patients. The initial repairs comprised 19 tubularized incised plates (TIP), 12 Mathieu procedures, 5 tubularized preputial flaps, 2 full thickness skin tubular grafts, and 1 onlay island flap repair. Eight full thickness skin tubular grafts, 18 onlay preputial island flaps, and 13 preputial tubular flaps were used for redo surgery. The success rate was 79.1%. Eight wound infections, 6 glans dehiscences, 13 fistulas, 12 meatal stenoses, and 5 urethral diverticulas were seen in the patients. The rates of these complications, Cystofix requirement, and reoperation were higher in the skin tubular graft group but this was not statistically significant (p > 0.05). One patient with graft contracture required a redo skin graft urethroplasty. The mean follow-up duration was18 months. CONCLUSION: Preputial tissue should be preferred in the presence of redo hypospadias surgery. In the absence of preputial tissue other tissues such as oral or buccal mucosa should be preferred instead of skin grafts.


Assuntos
Prepúcio do Pênis/transplante , Hipospadia/cirurgia , Transplante de Pele , Retalhos Cirúrgicos , Humanos , Masculino , Reoperação , Estudos Retrospectivos , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
3.
World J Urol ; 38(11): 2873-2879, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31938842

RESUMO

OBJECTIVE: To critically evaluate inner preputial graft (IPG) used in staged proximal hypospadias with severe chordee regarding cosmetic and functional outcomes. PATIENTS AND METHODS: In this prospective study, patients with primary proximal hypospadias with moderate to severe chordee (> 30°) after penile degloving were considered candidates for staged repair between June 2011 to July 2017. After transection of the urethral plate (UP) and penile straightening, the bare shaft was covered with IPG. Tubularization of the graft was done as a second stage. Cosmetic and functional outcomes were assessed using HOSE score and uroflowmetry (UF). Additionally, factors influencing success were analyzed. RESULTS: In all, 38 consecutive cases were included. Native meatus was at proximal penile in 17, penoscrotal in 11, scrotal in 7, and perineal in 3 cases. Median age was 26 and 32 months at the first stage and the second stage, respectively. Preoperative testosterone was given for ten patients with a small penis and/or severe curvature. The mean follow-up was 18 ± 8.2, median 15 months. Grafts took well in all cases after the first stage except one. Cosmetic success achieved in 33 (86.8%). A total of ten complications occurred in six cases. Unplanned intervention was needed in 5/38 cases. Functionally, UF study revealed normal flow in 7/23 (30.4%), equivocal in 11/23(47.8%), and obstructed flow in 5/23(21.7%). CONCLUSION: Inner preputial graft use in proximal hypospadias with moderate to severe chordee seems to have a good technical outcome and functionally mimic the normal urethral function and could be considered an ideal option for substitution urethroplasty.


Assuntos
Prepúcio do Pênis/transplante , Hipospadia/cirurgia , Pré-Escolar , Humanos , Hipospadia/patologia , Lactente , Masculino , Pênis/anatomia & histologia , Pênis/fisiologia , Estudos Prospectivos , Índice de Gravidade de Doença , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
4.
Urology ; 138: 138-143, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31901472

RESUMO

OBJECTIVE: To analyze treatment results of staged surgical repair of proximal forms of hypospadias according to Bracka's technique using preputial vs buccal grafts. MATERIAL AND METHODS: We retrospectively reviewed 220 patients with proximal forms of hypospadias treated with Bracka's urethroplasty technique. They were divided into 2 groups: Group I-108 patients treated with preputial skin grafts in 2001-2013; Group II-112 patients who underwent urethroplasty with buccal mucosa grafts in 2013-2016. RESULTS AND DISCUSSION: Of the Group I patients with preputial skin grafts, complications were obtained in 33 (31%) cases; in Group II-23 (20%) cases. Complications include fistulas, defects of urethra, and scar contraction of grafts. The cosmetic results according to Hypospadias Objective Penile Evaluation scale were more satisfactory when buccal mucosa grafts were used. Further studies are needed to analyze the long-term changes posturethroplasty with both preputial skin and buccal mucosa grafts. CONCLUSION: This is one of the only studies to compare complications and histology of the 2 free grafts: preputial skin and buccal mucosa. This study affirms that a staged surgical method with the use of free grafts according to Bracka's technique is a successful method of treatment of proximal forms of hypospadias in children achieving good functional and cosmetic results with a relatively low rate of complications.


Assuntos
Retalhos de Tecido Biológico/transplante , Hipospadia/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Complicações Pós-Operatórias/epidemiologia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Adolescente , Criança , Pré-Escolar , Prepúcio do Pênis/transplante , Retalhos de Tecido Biológico/efeitos adversos , Humanos , Lactente , Masculino , Mucosa Bucal/transplante , Complicações Pós-Operatórias/etiologia , Procedimentos de Cirurgia Plástica/efeitos adversos , Estudos Retrospectivos , Resultado do Tratamento , Uretra/anormalidades , Uretra/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversos
5.
Urol Int ; 104(5-6): 386-390, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31801150

RESUMO

INTRODUCTION: We aimed to assess the outcome of free tube graft urethroplasty for single-stage repair of hypospadias with chordee in children. MATERIALS AND METHODS: We retrospectively evaluated a series of 56 patients (16 months to 9 years old, median 24 months) who underwent free graft urethroplasty for repair of hypospadias with chordee between May 2005 and November 2017. The median follow-up was 7 years (range 1-11). RESULTS: After releasing the chordee, the hypospadiac orifice was retracted to become penile in 32 patients (57%), penoscrotal in 18 patients (32%), and scrotal in 6 patients (11%). Single-stage repair was achieved without complications in 42 patients (75%). Of the remaining 14 patients with postoperative complications requiring surgical intervention, 2 had meatal stenosis, 9 had urethrocutaneous fistula, 1 had urethral diverticulum without meatal stenosis, and 1 had meatal regression. One patient who complained the urine stream went upwards in an arc underwent cutback meatoplasty to correct the stream. In all patients, a neomeatus with a vertically oriented slit-like appearance was eventually achieved at the tip of the glans. CONCLUSION: A free graft is an appropriate choice for repairing hypospadias with chordee. Our procedure achieved favorable functional and cosmetic outcomes with a low postoperative morbidity rate.


Assuntos
Prepúcio do Pênis/transplante , Hipospadia/cirurgia , Uretra/cirurgia , Criança , Pré-Escolar , Humanos , Lactente , Masculino , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
8.
Ann Plast Surg ; 81(6): 657-661, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30383580

RESUMO

BACKGROUND: The prepuce is an excellent donor site for skin grafts with minimal donor site morbidity. Full-thickness grafts are often required for correction of congenital syndactyly and in burn contractures. METHODS: Preputial skin was used for grafting in 18 children: 5 with burn contractures and 13 with congenital syndactyly. RESULTS: Excellent graft take was achieved with appropriate postoperative care. Postoperatively, there were occasional milia (42%) and hyperpigmentation. These grafts were noted to have superior mobility and elasticity. There was no donor site morbidity. CONCLUSIONS: Preputial skin is accessible, easy to harvest, and hairless and has minimal donor site morbidity. It is especially well suited for the hands and fingers when elasticity of the graft is beneficial.


Assuntos
Queimaduras/cirurgia , Contratura/cirurgia , Prepúcio do Pênis/transplante , Transplante de Pele/métodos , Sindactilia/cirurgia , Sítio Doador de Transplante , Criança , Pré-Escolar , Sobrevivência de Enxerto , Humanos , Lactente , Masculino
9.
J Pediatr Urol ; 14(5): 449.e1-449.e4, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29887296

RESUMO

INTRODUCTION: Congenital scrotal agenesis (CSA) is an extremely rare condition with fewer than 10 cases reported in the literature. These patients are often further complicated by undescended testicles as well as systemic developmental disorders. Herein, we report our experience and an innovative surgical technique for creation of a neo-scrotum in three children. MATERIALS AND METHODS: We evaluated the records of three children in our database who were labeled as having an absent (1 patient) or severely underdeveloped scrotum (2 patients). Patients were aged 6, 14, and 16 months. All patients were uncircumcised, and the decision was made to create a neo-scrotum using the foreskin. The prepuce was harvested on a pedicle of dartos and transposed over the perineal cleft to create a neo-scrotal pouch. The flap was allowed to heal for 12-14 weeks, at which time the orchidopexy was performed. RESULTS: The follow-up to the surgery was 5 years, 3 years, and 6 months, respectively. There were no instances of flap necrosis, dehiscence, or wound infection. The three children had a capacious, aesthetically pleasing scrotal sac, which in all cases accommodated both testicles. CONCLUSION: In our experience, a well-vascularized preputial skin flap rotated to the perineum based on its ventral dartos pedicle provides an excellent source of tissue for creation of a neo-scrotum. We believe that the esthetic outcome of our technique rivals that of other reported techniques.


Assuntos
Prepúcio do Pênis/transplante , Escroto/anormalidades , Escroto/cirurgia , Retalhos Cirúrgicos , Humanos , Lactente , Masculino , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
11.
Blood Adv ; 2(3): 292-298, 2018 02 13.
Artigo em Inglês | MEDLINE | ID: mdl-29437556

RESUMO

Central memory T cells (TCM) patrol lymph nodes, providing central immunosurveillance against known pathogens, but have not been described as conducting primary tissue immunosurveillance. We analyzed the expression of tissue-homing addressins in human TCM vs effector memory T cells (TEM) from the same donors. In humans, the majority of human TCM were tropic for either skin or gut, and the overall tissue tropism of TCM was comparable to that of TEM TCM were present in healthy, noninflamed human skin, lung, colon, and cervix, suggesting a role for TCM in the primary immunosurveillance of peripheral tissues. TCM also had potent effector functions; 80% of CD8+ TCM produced TC1/TC2/TC17/TC22 cytokines. TCM injected into human skin-grafted mice migrated into skin and induced inflammatory eruptions comparable to TEM-injected mice. In summary, human TCM express peripheral tissue-homing receptors at levels similar to their effector memory counterparts, are found in healthy human tissues, have impressive effector functions, and can act alone to induce skin inflammation in human engrafted mice. Our studies support a novel role for human TCM in primary immunosurveillance of peripheral tissues and highlight the important role of this long-lived cell type in tissue-based immune responses.


Assuntos
Memória Imunológica , Monitorização Imunológica , Subpopulações de Linfócitos T/imunologia , Animais , Prepúcio do Pênis/transplante , Xenoenxertos , Humanos , Recém-Nascido , Inflamação , Linfonodos/imunologia , Masculino , Camundongos , Receptores de Retorno de Linfócitos , Pele/patologia
12.
Zhonghua Nan Ke Xue ; 24(12): 1106-1100, 2018 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-32212491

RESUMO

OBJECTIVE: To evaluate the effect of free grafting of internal preputial lamina in the treatment of penile divided nevus in children. METHODS: This retrospective study included 5 children with penile divided nevus, 4 complicated by redundant prepuce and the other 1 by concealed penis, all treated by free grafting of internal preputial lamina from October 2015 to November 2017. The patients ranged in age from 6 years and 8 months to 10 years and 4 months, averaging 8 years and 6 months. The surgical procedure involved complete excision of the lesions underneath the foreskin with a safety margin of 2 mm, collection of healthy internal preputial lamina for free grafting onto the defected glans, and simultaneously circumcision or concealed penis correction. The removed tissue of the divided nevus was subjected to pathological examination. The patients were followed up for 4-29 (mean 18) months postoperatively. RESULTS: All incisions healed primarily and the free grafts of internal preputial lamina survived well, similar to the glans in color and with a desirable appearance. The patients lost no protopathic sensibility of the glans and experienced no recurrence. Pathological examination confirmed 1 case of intradermal nevus and 4 cases of compound nevus. CONCLUSIONS: Free grafting of internal preputial lamina is an ideal method for the treatment of penile divided nevus in children, with the advantages of easy graft collection, little color difference between the graft and surrounding skin, desirable external appearance, and definite clinical effect.


Assuntos
Prepúcio do Pênis , Nevo , Doenças do Pênis , Fimose , Criança , Prepúcio do Pênis/transplante , Humanos , Masculino , Nevo/cirurgia , Doenças do Pênis/cirurgia , Pênis , Fimose/cirurgia , Estudos Retrospectivos
13.
Trop Doct ; 48(1): 85-87, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28836924

RESUMO

Urethral stricture disease is the commonest cause of morbidity in urology practice in sub-Saharan Africa. In contrast, prostate disease is commonly cited as the leading cause of urological disease in most urology practices in developed countries. In Africa, the aetiology of urethral stricture disease is compounded by a high prevalence of sexually transmitted infections (STIs), increasing levels of urethral trauma and over-stretched urological services. Thus, patients with prostate disease are treated with long-stay urethral catheters for periods often up to two years. This increases the risk of urethral stricture. The predominant aetiological factor is sexually transmitted infection due to gonococcus or chlamydia. This frequently leads to long severe strictures with spongiofibrosis, especially in the anterior urethra where the periurethral glands are located. These strictures respond poorly to urethral dilatation, optical urethrotomy or primary anastomosis. The majority of strictures in Africa are best treated by open substitution urethroplasty. The gold standard has been the use of buccal mucosa graft for this substitution procedure. This procedure poses a great challenge in most centres with limited resources. In these settings, we have found that the use of a dorsal onlay free preputial graft is easy to perform and gives good results.


Assuntos
Prepúcio do Pênis/transplante , Mucosa Bucal/transplante , Estreitamento Uretral/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos , Adulto , África , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Uretra/cirurgia
14.
Urology ; 106: 188-192, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28495506

RESUMO

OBJECTIVE: To solve the challenge in redo hypospadias surgery, we tried to use a bipedicled dorsal penile flap with a Z release incision in failed hypospadias cases and reported the outcome. MATERIALS AND METHODS: Thirty male children with 3 or 4 previous unsuccessful hypospadias surgeries were included in our study. Our technique was done after at least 6 months from the last surgery. A flap of the dorsal penile skin was preserved and the skin lateral to the flap was dissected on each side. A small opening was done in the dartos proximal to flap. The glans was withdrawn through this opening with a ventral transposition of the flap. Z-plasty was used to compensate for the deficient dorsal skin; the Z-plasty had 3 limbs and all were made of equal length. RESULTS: The mean age of the patients was 5.4 ± 1.8 years and the mean follow-up was 2.1 ± 0.7 years. The technique was successful in 80%. Reoperation was required in 3 cases; all cases were managed using a 2-stage buccal mucosal graft. A small fistula at the coronal level developed in 2 cases but closed spontaneously within 1 month. All patients were voiding well and had a vertically oriented meatus at the tip of the glans and satisfactory cosmetic results. CONCLUSION: Repair of failed hypospadias using a bipedicled dorsal penile skin flap with Z release incision is a safe and simple procedure offering high success rates.


Assuntos
Prepúcio do Pênis/transplante , Hipospadia/cirurgia , Pênis/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Retalhos Cirúrgicos , Uretra/cirurgia , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Criança , Pré-Escolar , Humanos , Masculino , Técnicas de Sutura , Resultado do Tratamento
15.
Zhonghua Nan Ke Xue ; 23(4): 347-352, 2017 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-29714421

RESUMO

OBJECTIVE: To investigate the risk factors for the complications of urethroplasty in patients with primary hypospadias by postoperative follow-up observation. METHODS: We retrospectively analyzed 110 cases of primary hypospadias repair performed from November 2010 to October 2015, including 70 cases of tubularized incised plate (TIP) urethroplasty and 40 cases of inlay internal preputial graft (IIPG) urethroplasty, all with the urethral plate reserved. We followed up the patients for 15.6-36 months, (27.3 ± 0.52) mo for those with and (26.9 ± 0.22) mo for those without complications. The mean age of the two groups of patients was (7.5 ± 0.2) and (7.0 ± 0.5) yr, respectively. RESULTS: The follow-up data were collected from all the patients, 17 (15.5%) with and 93 (84.5%) without complications. The success rate of surgery was 84.5%. There were no statistically significant differences in the follow-up time and age between the two groups of patients (P >0.05). Single-factor analysis of variance showed significant differences between the complication and non-complication groups in the preoperative urethral opening (P <0.01), ventral penile curvature (P <0.01), and length of urethral defect (P = 0.04), while multiple linear regression analysis exhibited that only ventral curvature was associated with the postoperative complications of the patients (OR = 1.12, 95% CI: 1.06-1.19, P<0.01). CONCLUSIONS: We chose single-stage urethroplasty with the urethral plate reserved for the treatment of primary hypospadias and achieved satisfactory outcomes. Ventral penile curvature is an independent risk factor for the complications of primary hypospadias, and a higher degree of curvature is associated with a higher incidnece of complications.


Assuntos
Prepúcio do Pênis/transplante , Hipospadia/cirurgia , Uretra/cirurgia , Análise de Variância , Criança , Humanos , Masculino , Pênis/anatomia & histologia , Complicações Pós-Operatórias/etiologia , Período Pós-Operatório , Procedimentos de Cirurgia Plástica , Análise de Regressão , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos
16.
Int Urol Nephrol ; 48(12): 1943-1949, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27623810

RESUMO

BACKGROUND: Several techniques have been used to repair mid-penile hypospadias; however, high failure rates and major complications have been reported. In this study, we describe a novel technique using a well-vascularized flap of the inner and outer preputial skin. METHODS: A total of 110 male children with hypospadias underwent repair by our technique between 2008 and 2015. The inclusion criteria were children with mid-penile or slightly more proximal hypospadias, with or without ventral chordae, and an intact prepuce of the cobra eyes variety. Recurrent cases, patients with other preputial types, and circumcised children were excluded from this study. The prepared flap was sutured in its natural longitudinal orientation to the created urethral plate strip to form a neo-urethra over a urethral catheter. Outcome measures included surgical success without the formation of a urethra-cutaneous fistula, no ischaemia of the flaps, glans dehiscence or infection and functional outcome and cosmetic appearance. RESULTS: The median follow-up duration was 3.3 years. There were 63 cases of mid-penile hypospadias (57.3 %), and in 47 cases (42.7 %), the meatus was slightly more proximal. The age of the patients ranged from 1.1 to 8.0 years, with a mean age of 4.6 ± 1.2 years. Surgery was successful in 106 (96.4 %) cases. Minor complications occurred in 11 patients (10 %) and included oedema of glans in ten patients and bluish discoloration on the ventral aspect of the glans close to the suture line in three patients. All patients improved within 2 weeks after surgery. Long-term follow-up revealed a properly functioning urethra with a forward, projectile, single, compact, and rifled urinary stream of adequate calibre and cosmetically acceptable repair. No cases of meatal retraction, meatal stenosis, urethral stricture, or acquired urethral diverticulum occurred. DISCUSSION: Our technique is different from the split prepuce in situ technique. We create a narrow strip of the urethral plate that facilitates glanular closure, and we use the inner and adjacent outer skin in a vertical manner to preserve excess skin for penile coverage. Prepuce is split at midline to preserve more preputial skin with favourable dartos tissue for penile skin coverage. The glans is closed using a stitch-by-stitch method that has not been described previously. CONCLUSION: This study presents a novel technique for mid-penile hypospadias repair using a preputial skin flap with excellent results in terms of short- and long-term outcomes.


Assuntos
Fístula Cutânea , Prepúcio do Pênis/transplante , Hipospadia , Complicações Pós-Operatórias/prevenção & controle , Retalhos Cirúrgicos/irrigação sanguínea , Uretra , Fístula Urinária , Procedimentos Cirúrgicos Urológicos Masculinos , Criança , Pré-Escolar , Fístula Cutânea/etiologia , Fístula Cutânea/prevenção & controle , Humanos , Hipospadia/diagnóstico , Hipospadia/fisiopatologia , Hipospadia/cirurgia , Masculino , Pênis/patologia , Pênis/cirurgia , Procedimentos de Cirurgia Plástica/efeitos adversos , Procedimentos de Cirurgia Plástica/métodos , Resultado do Tratamento , Uretra/anormalidades , Uretra/diagnóstico por imagem , Uretra/cirurgia , Fístula Urinária/etiologia , Fístula Urinária/prevenção & controle , Procedimentos Cirúrgicos Urológicos Masculinos/efeitos adversos , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
17.
Urol J ; 13(2): 2629-34, 2016 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-27085564

RESUMO

PURPOSE: To present the results of a two-stage technique used for the treatment of proximal hypospadias with severe curvature. MATERIALS AND METHODS: The medical records of children with proximal hypospadias and severe curvature were retrospectively analyzed. A 2-stage procedure was performed in 30 children. In the first stage, the release of chordee was performed, and a well-vascularized preputial island flap was created. The vascularized island flap was brought anteriorly and sutured over the ventral surface of the glans and degloved penile shaft. The second stage was performed 6-8 months later. A neourethra was reconstructed by the tubularization of the preputial-urethral plate utilizing the principles of Duplay technique. All surgical procedures were performed between 2005 and 2011. RESULTS: The mean age of the patients was 4.4 years (1-17 years). The mean duration of urethral catheterization was 6 days after the first stage and 10 days following the second stage. The flaps were viable in all of the children. There was no residual chordee. Following the second stage (n = 30), complications developed in 11 children (36%), namely, a fistula in 7, a pinpoint fistula in 3, and a diverticulum formation in 1. The cosmetic outcome was satisfactory. Uroflowmetry measurements were evaluated, and only one patient had a diverticulum formation at the late follow-up. CONCLUSION: Vascularized preputial island flap is an alternative to free grafts for the reconstruction of the urethra. The main advantage of this flap technique is the creation of a thick, healthy and well-vascularized urethral plate. The advantages of this technique include better aesthetic appearance, an acceptable complication rate, and a very low rate of diverticula formation.


Assuntos
Prepúcio do Pênis/transplante , Hipospadia/cirurgia , Doenças do Pênis/cirurgia , Pênis/anormalidades , Procedimentos de Cirurgia Plástica/métodos , Retalhos Cirúrgicos/irrigação sanguínea , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Adolescente , Criança , Pré-Escolar , Seguimentos , Humanos , Hipospadia/complicações , Lactente , Masculino , Doenças do Pênis/complicações , Doenças do Pênis/diagnóstico , Estudos Retrospectivos , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento
18.
J Pediatr Urol ; 12(5): 286.e1-286.e7, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27020542

RESUMO

INTRODUCTION: Although two-stage graft urethroplasty is widely used, the literature regarding the complication rates and functional characteristics of reconstructed neourethra is relatively modest. OBJECTIVES: The aim was to analyze the complication rates and uroflow data of boys who have previously undergone a two-stage graft urethroplasty procedure for proximal and complicated hypospadias. PATIENTS AND METHODS: We retrospectively reviewed the clinical outcomes of 52 boys with proximal (n = 44) and complicated (n = 8) hypospadias who underwent two-stage graft urethroplasty repair (median age of 15 months and 3 years respectively) between 2004 and 2015. Fifteen toilet-trained boys without fistulas underwent uroflowmetry. The uroflow data were plotted on age-volume-dependent normograms with normal controls. The median follow-up was 34 months (8 months-8 years). RESULTS AND COMPLICATIONS: Complications were identified in three patients (6%) after the first stage (i.e. contracture of the graft) and in 20 patients (38.4%) after the second stage, including meatal stenosis (n = 8, 15.3%), urethral stricture (n = 4, 7.6%), urethrocutaneous fistula (n = 8, 15.3%), glandular dehiscence (n = 1, 1.9%), and diverticulum (n = 1, 1.9%). The patients with failed hypospadias experienced fewer complications than those who underwent the two-stage procedure for primary repair (25% and 45%, respectively). The reoperation rate was 36.8%. Eleven of the 15 toilet-trained boys were asymptomatic but exhibited flow rates below the normal range (median Qmax = 7 mL/s, range 3.5-16.7). Only one of the boys with a low flow rate was confirmed to have urethral stenosis under general anesthesia. DISCUSSION: In our study, primary hypospadias repair requiring urethral plate transection elicited worse outcomes than those observed in the prior failed hypospadias cases. However, because of our study's retrospective design, we were unable to accurately assess the initial position of the meatus in the redo hypospadias cases. Our data also demonstrated that the majority of cases without any voiding symptoms exhibited flow rates that were below the normal range despite no urethral stricture under general anesthesia. These findings indicate that urethras reconstructed via two-stage graft urethroplasty repair are not functionally equivalent to normal urethras, at least prior to puberty. CONCLUSION: Two-stage graft urethroplasty repair was successful in 62% of cases after the second-stage procedure, but one-third of the boys required a reoperation after the two-stage planned repair. We demonstrated that although we used a urethral tissue substitute, the urine flow patterns of the patients without strictures were abnormal.


Assuntos
Prepúcio do Pênis/transplante , Hipospadia/cirurgia , Mucosa Bucal/transplante , Uretra/cirurgia , Criança , Pré-Escolar , Humanos , Hipospadia/complicações , Hipospadia/patologia , Lactente , Masculino , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
19.
BJU Int ; 118(3): 451-7, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-26780179

RESUMO

OBJECTIVE: To evaluate the long-term outcomes of hypospadias repair using an onlay preputial graft. PATIENTS AND METHODS: Patient records from 1989 to 2013 were retrospectively reviewed. One surgeon performed all cases and surgical technique was the same for all patients. RESULTS: There were 62 patients in the cohort, with a mean (range) follow-up of 47.4 (1-185) months. The meatal location was separated into distal (one patient), midshaft (19) and proximal (42). In all, 22 (35.5%) patients had complications. There were three main types of complications, including meatal stenosis in three (4.8%), stricture in three (4.8%), and fistula in 21 (33.9%). The mean (range) timing of presentation with a complication after surgery was 24.9 (1-127) months. In all, 54.5% of the patients with complications presented at ≥1 year after the initial surgery and 31.8% presented at ≥3 years. On univariable analysis age at the time of surgery, length of the graft, presence of chordee or meatal location (proximal or midshaft) did not predict a complication. The width of the graft was associated with a complication, with each 1 mm increase in width decreasing the odds of a complication by 56%. On multivariable analysis width remained statistically significant (odds ratio 0.44, 95% confidence interval 0.230-0.840; P = 0.013) for predicting a complication. CONCLUSION: Hypospadias repair with onlay preputial graft is an option for single-stage repair, especially in cases of proximal hypospadias or where the urethral plate width and/or the glanular groove is insufficient for other types of repair. Compared with flaps, the use of grafts may decrease the risk of penile torsion and prevent less bulk around the urethra, improving skin and glans closure.


Assuntos
Prepúcio do Pênis/transplante , Hipospadia/cirurgia , Seguimentos , Humanos , Lactente , Masculino , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
20.
Urology ; 90: 179-83, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26743395

RESUMO

OBJECTIVES: To investigate the safety, efficacy, and versatility of dorsolateral graft urethroplasty using penile skin. MATERIALS AND METHODS: Between 2010 and 2013, 37 men with anterior urethral strictures underwent dorsolateral graft urethroplasty using penile skin by a single surgeon (EP). Inclusion criterion was patients with anterior urethral strictures. Exclusion criteria were lichen sclerosus-related strictures, absence of available penile skin because of previous surgery, and obliterative urethral strictures. Clinical outcome was considered a failure when any postoperative instrumentation was needed, including dilatation. RESULTS: Mean (± standard deviation) patients age was 51 (±15.4) years. Stricture etiology was iatrogenic in 25 cases (67%), unknown in 10 (27%), trauma in 2 (6%). Stricture site was penile in 21 (57%) and peno-bulbar in 16 (43%). Median (range) stricture length was 5 cm (1-15). Of 37 patients, 30 (81%) had received previous treatments. Median (range) follow-up was 21 months (12-47). Of 37 patients, 34 (92%) had successful treatment and 3 (8%) had failed treatment. The 3 patients with failed treatment were treated with urethrostomy and are awaiting further reconstruction. Study limitations include the small sample size and the limited follow-up. CONCLUSION: With a mid-term follow-up time, the dorsolateral graft urethroplasty using penile skin is shown to be a safe, efficient, and versatile technique for the repair of short-mid-long anterior urethral strictures.


Assuntos
Prepúcio do Pênis/transplante , Uretra/cirurgia , Estreitamento Uretral/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/métodos
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