Tomografía computarizada con reconstrucción 3D para el diagnóstico de lesiones traumáticas de uretra / Three-dimensional computed tomography reconstruction for the diagnosis of traumatic urethral injuries

RESUMEN La uretrografía retrógrada es la técnica de referencia (gold standard) utilizada clásicamente para hacer diagnóstico de lesiones de uretra. En este contexto se presenta un caso en el que se realizó tomografía computarizada con reconstrucción 3D con contraste intravenoso y endouretral, pudiendo reconstruir la uretra en toda su extensión en forma tridimensional. De esta manera se arribó al diagnóstico de certeza de la lesión de uretra. Como ventaja del método se menciona la posibilidad de diagnosticar ‒ con un solo estudio por imágenes‒ lesiones de todo el tracto urinario, órganos sólidos, huecos y lesión del anillo pélvico asociados al traumatismo, con una alta sensibilidad y especificidad sin necesidad de requerir otros estudios complementarios.

ABSTRACT Retrograde urethrography is the gold standard method for the diagnosis of urethral injuries. In this setting, we report the use of computed tomography with intravenous injection and urethral administration of contrast medium and 3D reconstruction of the entire urethra. The definitive diagnosis of urethral injury was made. The advantage of this method is the possibility of making the diagnosis of traumatic injuries of the entire urinary tract, solid organs, hollow viscera and of the pelvic ring within a single imaging test, with high sensitivity and specificity, with no need to perform other complementary tests.

Nefroureterectomía radical lumboscópica con rodete vesical endoscópico, en cáncer urotelial de tracto urinario superior / Lumboscopic radical nephroureterectomy with endoscopic bladder cuff excision in an upper urinary tract urothelial tumor

Los carcinomas uroteliales son el 4to tumor más común. Pueden ubicarse en el tracto urinario inferior (vejiga y uretra) o en el tracto urinario superior (cavidades renales, pelvis renal y uréter). Presentamos una serie de 3 casos, con cuadro de hematuria macroscópica, documentando tumores uroteliales, realizándose en estos casos un abordaje lumboscópico de riñón y una resección endoscópica del rodete vesical. Se realiza nefroureterectomía lumboscópica con resección de rodete vesical endoscópica transuretral. Los 3 pacientes fueron egresados al segundo día posquirúrgico sin complicaciones y en los tres casos el rodete vesical sin evidencia de actividad tumoral, y actualmente en vigilancia con excelente resultados oncológicos. La nefroureterectomía lumboscópica con resección endoscópica del rodete vesical es una técnica reproducible en manos experimentadas, con iguales resultados oncológicos que el abordaje abierto.

Urothelial carcinomas are the 4th most common tumor. They can be located in the lower urinary tract (bladder and urethra) or in the upper urinary tract (renal cavities, renal pelvis, and ureter). We present a series of 3 cases, with a picture of macroscopic hematuria, documenting urothelial tumors, performing in these cases a lumboscopic approach to the kidney and an endoscopic resection of the bladder rim. Lumboscopic nephroureterectomy was performed with transurethral endoscopic bladder rump resection. The 3 patients were discharged on the second postoperative day without complications and in the three cases the bladder rim without evidence of tumor activity, and currently under surveillance with excellent oncological results. Lumboscopic nephroureterectomy with endoscopic resection of the bladder rim is a reproducible technique in experienced hands, with the same oncological results as the open approach.

Urethral leiomyoma: combined vaginal and abdominal approach - a case report / Mioma uretral: abordagem combinada vaginal e abdominal - um relato de caso

Abstract Introduction: leiomyomas are benign mesenchymal tumors of smooth muscle origin that can develop in various locations. Urethral leiomyomas are rare, with approximately only 120 cases reported in the literature. These tumors often occur in the third and fourth decades of life but are rare in menopausal patients. In general, treatment involves surgery, only three recurrence reports in the literature. Description: a case report on a 56-year-old woman; the patient had type II diabetes mellitus and chronic high blood pressure, was overweight (body mass index, 27.1 kg/m2), and a smoker. Besides this, the patient presented symptoms of urinary obstruction and had a large urethral leiomyoma. The tumor was completely removed with no associated urethral lesions using a complex, combined abdominalvaginal surgical approach. Discussion: the management and treatment on urethral leiomyomas is challenging and have not been established yet due to the rarity of these tumors.

Resumo Introdução: os leiomiomas são tumores mesenquimais benignos de origem muscular lisa, podendo manifestar-se em diversas localizações. Os leiomiomas uretrais são raros, tendo apenas aproximadamente 120 casos relatados na literatura. São mais comuns na terceira e quarta décadas de vida, sendo raros em pacientes menopausadas. Em geral, são tratados cirurgicamente, com apenas três relatos de recidivas na literatura. Descrição: relato de caso de uma paciente do sexo feminino, 56 anos, portadora de diabetes mellitus do tipo II, hipertensão arterial crônica, sobrepeso (IMC 27,1Kg/m2) e tabagismo. Além disso, com quadro de sintomas obstrutivos urinários e portadora de um grande leiomioma uretral, este que foi completamente removido, através de uma desafiadora abordagem cirúrgica combinada (abdominal e vaginal), sem lesões uretrais associadas. Discussão: os leiomiomas uretrais são tumores raros e seu manejo é desafiador e ainda não foi estabelecido.

Uretroplastia término terminal y reconstrucción cavernosa temprana en ruptura bilateral de origen traumático / End-to-End Urethroplasty and Early Cavernous Reconstruction in Bilateral Rupture of Traumatic Origin / Uretroplastia término-terminal e reconstrução cavernosa precoce em rotura bilateral de origem traumática

Introducción. La fractura de pene es una emergencia urológica rara, se desconoce la incidencia real dado el subregistro causado por la reducida consulta de los pacientes, resultado del embarazoso contexto. En Estados Unidos alcanza un 38% donde la etiología de índole sexual predomina. En Colombia hay escasos reportes publicados. El diagnóstico de esta entidad es netamente clínico. El objetivo de este trabajo es reportar una evolución satisfactoria en términos de función miccional y eréctil en un paciente sometido a reconstrucción cavernosa y uretral temprana en rotura bilateral de origen traumático mediante una técnica quirúrgica poco convencional, de acuerdo con lo hallado en la literatura. Presentación del caso. Paciente masculino de 30 años, previamente sano, quien consultó al servicio de urgencias por uretrorragia, edema y dolor peneano secundario a trauma contuso del mismo durante relación sexual. El reporte ecográfico mostró disrupción en túnica albugínea del cuerpo esponjoso, hematoma y aparente transección uretral; se realizó exploración quirúrgica 6 horas después, con evidencia de fractura de cuerpos cavernosos, laceración del 40% de la circunferencia, transección completa de la uretra y cuerpo esponjoso. Se realizó rafia de cuerpos cavernosos y uretroplastia término terminal de uretra bulbar, con evolución clínica satisfactoria. Discusión. La reconstrucción quirúrgica en menos de 24 horas en fractura de pene disminuye significativamente la estancia hospitalaria y complicaciones precoces; asimismo, desciende el riesgo de disfunción eréctil, erecciones dolorosas y problemas miccionales. No hay publicaciones que comparen resultados a largo plazo entre los dos abordajes quirúrgicos. Conclusiones. La fractura de pene es una patología poco frecuente con diagnóstico clínico, la cual debe manejarse de manera temprana por cualquier urólogo y, en caso de ser posible, con experiencia reconstructiva y excelentes resultados en la función sexual y miccional.

Introduction. Penile fracture is a rare urological emergency, the real incidence is unknown given the underreporting caused by the reduced consultation of patients, resulting from the embarrassing context. In the United States it reaches 38%, where sexual etiology predominates. In Colombia there are few published reports. The diagnosis of this entity is purely clinical. The aim of this work is to report a satisfactory evolution in terms of voiding and erectile function in a patient who underwent early cavernous and urethral reconstruction in bilateral rupture of traumatic origin by means of an unconventional surgical technique, in accordance with what has been found in the literature. Case Presentation. A 30-year-old male patient, previously healthy, consulted the emergency department for urethrorrhagia, edema and penile pain secondary to blunt trauma to the penis during sexual intercourse. The ultrasound report showed disruption in the tunica albuginea of the corpus spongiosum, hematoma and apparent urethral transection; surgical exploration was performed 6 hours later, with evidence of fracture of the corpora cavernosa, laceration of 40% of the circumference, complete transection of the urethra and corpus spongiosum. Sutures to the corpora cavernosa and end-to-end urethroplasty of the bulbar urethra were performed, with satisfactory clinical evolution. Discussion. Surgical reconstruction in less than 24 hours in penile fractures significantly reduces hospital stay and early complications; it also reduces the risk of erectile dysfunction, painful erections and voiding problems. There are no publications comparing long-term results between the two surgical approaches. Conclusions. Penile fracture is a rare pathology with clinical diagnosis, which should be managed early by any urologist and, if possible, with reconstructive experience and excellent results in sexual and voiding function.

Introdução. A fratura peniana é uma emergência urológica rara, a real incidência é desconhecida dada a subnotificação causada pela reduzida consulta de pacientes, resultado do contexto constrangedor. Nos Estados Unidos chega a 38% onde predomina a etiologia de natureza sexual. Na Colômbia há poucos relatórios publicados. O diagnóstico desta entidade é puramente clínico. O objetivo deste trabalho é relatar uma evolução satisfatória da função miccional e erétil em um paciente submetido à reconstrução cavernosa e uretral precoce em ruptura bilateral de origem traumática por meio de técnica cirúrgica não convencional, de acordo com o que foi encontrado na literatura. Apresentação do caso. Paciente do sexo masculino, 30 anos, previamente saudável, procurou o pronto-socorro por uretrorragia, edema e dor peniana secundária a trauma contuso durante a relação sexual. O relatório do ultrassom mostrou ruptura na túnica albugínea do corpo esponjoso, hematoma e transecção uretral aparente; a exploração cirúrgica foi realizada 6 horas depois, com evidência de fratura dos corpos cavernosos, laceração de 40% da circunferência, transecção completa da uretra e corpo esponjoso. Foram realizadas ráfia dos corpos cavernosos e uretroplastia término-terminal da uretra bulbar, com evolução clínica satisfatória. Discussão. A reconstrução cirúrgica em menos de 24 horas nas fraturas penianas reduz significativamente o tempo de internação e as complicações precoces. Da mesma forma, diminui o risco de disfunção erétil, ereções dolorosas e problemas de micção. Não há publicações comparando os resultados a longo prazo entre as duas abordagens cirúrgicas. Conclusões. A fratura peniana é uma patologia rara com diagnóstico clínico, que deve ser tratada precocemente por qualquer urologista e, se possível, com experiência reconstrutiva e excelentes resultados na função sexual e miccional.

High grade persistent ventral curvature after multiple hypospadias surgery: how to correct?

ABSTRACT Introduction: A challenging situation in proximal hypospadias is the presentation of patients with successful urethroplasty but with persistent or recurrent ventral curvature (VC) after multiple hypospadias repair. Materials and Methods: We present a 13 year-old boy with 7 previous surgeries (long TIP, Duplay, meatoplasty) to treat hypospadias presenting with 60 degrees of VC, in spite of a well-accepted coronally neomeatus. We degloved the penis and artificial erection clearly appointed corporal disproportion causing curvature. We disconnected urethra from corpora. After excision of remnant fibrotic tissue, there was a residual curvature so a lenghtening corporoplasty with dermal graft from groin was performed. We have adjusted the urethral meatus position into a proximal penile shaft. We used a buccal mucosa graft placed in an inverted U-shape position planning a second stage urethroplasty (1). An indwelling silicone Foley tube was left for one week. The patient was discharged the day after surgery. Results: The aspect after corporoplasty proved satisfactory curvature correction. Patient had an excellent outcome and is scheduled for a second-stage after 6 months. Discussion: Snodgrass and Bush (2) reported that on 73 patients with an average of 2.7 operations for proximal shaft to perineal hypospadias; of which, 83% had VC at re-operation averaging 50°. We do believe that some good results with minimal dorsal plicature may recur in adolescence and therefore when these procedures may be considered, they should be performed by classic Nesbit technique (3). Otherwise, the choice for primary ventral lengthening should be taken. Conclusion: Severe curvature associated with hypospadias should undergo a major procedure at early stage to avoid decompensation after dorsal plicature in adolescence. We had a very satisfactory result, the patient awaits the second stage procedure (Figure-1). Figure 1 End aspect after complete healing of buccal mucosa. Notice that penis is straight and second stage will be performed after 6 months of interval.

Endoscopic Holmium Laser harvesting of bladder mucosal graft for substitution urethroplasty

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.

The role of transperineal ultrasound in the evaluation of stress urinary incontinence cases

ABSTRACT Purpose: To evaluate the use of transperineal ultrasonography while diagnosing stress urinary incontinence (SUI) by comparing the urethral angle (α), posterior urethrovesical angle (β), and bladder neck descent (BND) during rest and Valsalva maneuver in continent women and women with SUI. Materials and methods: This prospective observational study was conducted with 50 women with SUI and 50 continent women. Transperineal ultrasonography was performed at rest and during Valsalva maneuver. Q-tip test was performed. Results: During the Valsalva maneuver, both α and β angles were significantly higher in women with SUI (p <0.001). The difference between Valsalva and rest measurements of α and β angles (R α, R β) were also significantly higher in women with SUI (p <0.001). The cut-off point determined for the R α in the diagnosis of stress incontinence was 16° (80% sensitivity, 98% specificity). A statistically significant strong correlation was found between Q-tip test angle and R α value (p=0.000; r=0.890). Q-tip VAS pain scores were significantly higher than ultrasonography VAS pain scores (p <0.001). In relation to the bladder neck descent comparison between the two groups showed that BND was significantly higher in SUI group (p <0.001). The cut-off point determined for BND in the diagnosis of SUI was >11mm (90% sensitivity, 98% specificity). Conclusion: Transperineal ultrasonography is a practical, reliable, non-invasive and comfortable method for evaluation of SUI. It has the advantage of dynamic evaluation during the Valsalva maneuver. Rotation angles and BND have high sensitivity and specificity for detection of SUI. The change in α angle with Valsalva (Rα) can be used as an alternative to Q-tip test.

Robotic management of congenital urethra-vaginal fistula with transverse vaginal septum

ABSTRACT Introduction: The transverse vaginal septum (TVS) with congenital urethra-vaginal fistula (CUVF) is a rare anomaly of the mullerian duct (1, 2). Incomplete channelling of the vaginal plate, or an abnormality in the fusion of the vaginal component of mullerian duct with the urogenital sinus results in TVS (1, 3, 4). High CUVF occurs due to the persistent communication between the urogenital sinus and utero-vaginal primordium at the tubercle sinus, whereas low CUVF is due to excessive apoptosis of the vaginal plate during channelling (5). The principles of management of CUVF with TVS include: 1) TVS resection, 2) Create a neovagina. We present a case of CUVF with TVS managed by robotic assistance. Material and methods: A 24-year-old female, married for 3 years, presented with cyclical hematuria since menarche, dyspareunia and primary infertility. Examination revealed blind ending vagina 4cm from the introitus. Magnetic resonance imaging revealed a fistulous communication between urethra and vagina, and TVS. Cystourethroscopy confirmed a proximal urethra-vaginal fistula. Urethroscopy guided puncture of the TVS was performed, tract dilated and a catheter was placed across it. Robotic assisted transvaginal approach was planned. Air docking of robot was performed. Traction on the catheter was given to identify the incised edges of the septum. Vaginal flaps were raised laterally, fistulous tract was excised. Proximal vagina mucosa was identified and vaginoplasty was performed. Result: Patient's postoperative recovery was uneventful. Urethral catheter was removed after 5 days. She had normal voiding and menstruation. Vaginoscopy performed at 1st month follow-up, revealed an adequate vaginal lumen. Vaginal moulds were advised for 6 weeks during the night, following which she resumed her sexual activity. She conceived 6 months post-surgery, and delivered a child by caesarean section. Conclusion: We successfully managed this case by resection of septum, neovagina creation and thereby achieving normal menstruation and conception. The advantages of robotic approach were magnification, precision and manoeuvrability in a limited space, avoiding a vaginal release incision.

Bladder function in children with posterior urethral valves: impact of antenatal versus postnatal diagnosis

ABSTRACT Purpose: Posterior urethral valves (PUVs) are the most common cause of congenital bladder obstruction in boys. Our aim was to assess the impact of early diagnosis and fulguration of PUVs on bladder function and compare their functional and urodynamic outcome with children who underwent delayed intervention. Materials and Methods: We retrospectively evaluated 153 patients who underwent primary valve ablation from two tertiary hospitals between 2001 and 2018. Patients have been divided into 2 groups, group 1 included 69 patients who were detected antenatally and underwent early fulguration of PUVs while group 2 included 84 children presented postnatally and underwent delayed valve ablation. The recorded data throughout follow-up in renal function tests, urodynamics and changes in the upper urinary tracts were evaluated and compared. Results: Median age at time of valve ablation was 10 days in group 1 and 7 months in group 2. The median follow-up period was 6.5 and 7 years in group 1 and 2, respectively. Chronic kidney disease (CKD) developed in 15 (22%) boys in group 1 while in group 2 it was observed in 31 (37%), p=0.04. While Q-max, mean bladder capacity and post-void residual (PVR) volumes were comparable in both groups, percent PVR was significantly higher in group 2 (3.27 vs. 1.44, p=0.002). Detrusor overactivity was slightly different in both groups (p = 0.07). Conclusions: Compared to delayed intervention, primary ablation of PUVs during the early neonatal life possibly provides the optimum chance to have optimum renal function without impact on bladder function.

Manejo quirúrgico de prolapso uretral en pediatría: Reporte de caso / Surgical management of urethral prolapse in pediatrics: A case report

Introducción. El prolapso uretral es una entidad poco común, con una incidencia estimada de 1 en 3000 mujeres. Se presenta cuando la mucosa uretral sobresale espontáneamente más allá del meato uretral. Es una patología poco diagnosticada dada su baja frecuencia y de allí la importancia de conocer sobre su presentación, diagnóstico y tratamiento. El objetivo de este artículo fue presentar el caso de una paciente de 10 años con diagnóstico de prolapso uretral y su manejo quirúrgico. Caso clínico. Paciente femenina de 10 años, que consultó por cuadro clínico de 1 año de evolución consistente en dolor en región urogenital, que se irradiaba a hipogastrio, asociado a pujo y disuria, a quien se le diagnosticó prolapso uretral y se realizó corrección quirúrgica de mucosa uretral prolapsada mediante técnica de Kelly-Burnham modificada. Conclusión. El prolapso uretral es una entidad que con frecuencia es diagnosticada erróneamente pues su diagnóstico es eminentemente clínico. Si bien se ha descrito el tratamiento médico en primera instancia, éste tiene una alta tasa de recurrencia, por lo que en estos casos se prefiere la resección quirúrgica del tejido prolapsado.

Introduction. Urethral prolapse is a rare entity, with an estimated incidence of 1 in 3,000 women. It occurs when the urethral mucosa spontaneously protrudes beyond the urethral meatus. It is a poorly diagnosed pathology given its low frequency and hence the importance of knowing about its presentation, diagnosis and treatment. The objective of this article was to present the case of a 10-year-old patient with a diagnosis of urethral prolapse and its surgical management. Clinical case. A 10-year-old female patient, who consulted for a 1-year clinical picture consisting of pain in the urogenital region, radiating to the hypogastrium, associated with pushing and dysuria, who was diagnosed with urethral prolapse and a surgical correction of the urethral mucosa was performed prolapsed by modified Kelly-Burnham technique. Conclusion. Urethral prolapse is an entity that is frequently misdiagnosed because its diagnosis is eminently clinical. Although medical treatment has been described in the first instance, it has a high recurrence rate, so surgical resection of the prolapsed tissue is preferred in these cases.

A new option to prevent fistulas in anterior urethroplasty in patients with kippered urethra: the tunica vaginalis flap

ABSTRACT The objective of this study is describing a technique with the use of a tunica vaginalis flap (TVF) to cover the suture line during anterior urethroplasty in patients with kippered urethra due to chronic indwelling catheterization (CIC). We studied 5 patients (mean age=50.2) with a neurogenic bladder that developed urethral erosion after a long period of CIC. Foley catheter was removed on the 14th postoperative day. One patient developed wound infection and utethrocutaneous fistula, which was conservatively managed and after 12 months of follow-up all the patients didn't report difficulties in intermittent self-catheterization. In conclusion, a urethroplasty with TVF technique may be a viable method for repairing penile urethral erosions, but further studies are required with a bigger sample to confirm our results.

Leiomioma parauretral: manifestación clínica inusual, primer reporte de caso en literatura colombiana / Parauretral leiomioma: unusual clinical manifestation, first case report in colombian literatura

RESUMEN El leiomioma parauretral es una neoplasia benigna con pocos casos descritos en la literatura. El leiomioma abarca el 5% de los casos de las masas parauretrales, ocupando el cuarto lugar como una de las causas menos frecuentes, después del divertículo parauretral. Se presenta el caso de una paciente de 43 años con antecedente de infección urinaria a repetición, con una masa de 8 cm en pared vaginal anterior de cuatro años de evolución. La cistoscopia fue normal y la ecografía mostró una lesión sólida parauretral. Se realizó resección por colpotomía sin complicaciones, con resultado de patología de leiomioma. Control postquirúrgico y uroflujometría normal. Dentro de las posibilidades diagnósticas ante una masa parauretral, el leiomioma debe considerarse. La sintomatología es variable, siendo los síntomas urinarios los más frecuentes. La ecografía y la resonancia son herramientas fundamentales y el manejo se basa en la resección quirúrgica, generalmente vía vaginal. MÉD.UIS.2021;34(2): 77-82.

ABSTRACT Introduction: Paraurethral leiomyoma is a rare benign neoplasm, with few cases described in the literature. Most of the data on prevalence are based on case series, the leiomyoma covers 5% of the paraurethral masses, occupying the fourth place as one of the less frequent causes, after parurethral diverticulum. Case: 43 years old patient with antecedents of recurring urinary infections and a previous 8 cm mass on the vaginal walls with 4 years of clinical evolution course. Cystoscopy was normal and ultrasound with a solid paraurethral injury. Colpotomy resection was performed without complications, resulting in leiomyoma pathology. Post-surgical control and normal uroflowmetry. Discussion and conclusion: leiomyomas should be considered as a possible diagnosis in case of a periurethral mass presence. Symptomatology is variable. The urinary symptoms are the most frequent as in this case. Ultrasonography and resonance are essential tools treatment are based on surgical resection which is usually vaginally. MÉD.UIS.2021;34(2): 77-82