Endourological treatment of ectopic ureterocele. Our experience in the last 15 years. / Tratamiento endourológico del ureterocele ectópico. Experiencia en los últimos 15 años.

OBJECTIVE: To assess the efficacy of the endourological treatment of ectopic ureterocele in children in a large series and with a long-term follow-up. MATERIALS AND METHODS: A retrospective, descriptive study of patients with ectopic ureterocele who had undergone surgery in our institution in the last 15 years was carried out. All patients were treated using an endourological approach, both for ureterocele and postoperative vesicoureteral reflux (VUR). RESULTS: 40 patients were treated -55% with left involvement and 5% with bilateral involvement. Mean age at diagnosis was 4.97 months, with diagnosis being established prenatally in 54.1% of cases. In all patients but one, endourological puncture of the ureterocele was conducted. Mean age at surgery was 6.96 months (0-1.11). Surgery was performed on an outpatient basis in 94.9% of patients. No perioperative complications were recorded. In the last 30 patients, preoperative voiding cystourethrography was not carried out. 72.5% of patients had postoperative VUR (44.8% into the upper pyelon, 10.3% into the lower pyelon, 17.2% into both, 6.9% into the contralateral system, and 20.7% into the bilateral system), but it was resolved with a single endoscopic procedure in 48.1% of cases (65% of patients were healed with two procedures). VUR was not endoscopically resolved in 3 patients who required ureteral re-implantation. 6 patients required heminephrectomy (n=3) or nephrectomy (n=3) as a result of functional impairment and infections. CONCLUSION: The endourological treatment of ectopic ureterocele is a little aggressive and little invasive technique that allows the obstruction to be resolved on an outpatient basis, which means bladder surgery -if required- can be performed outside the neonatal period.

OBJETIVO: Evaluar la eficacia del tratamiento endourológico del ureterocele ectópico en niños en una serie amplia y con seguimiento a largo plazo. MATERIAL Y METODOS: Estudio retrospectivo descriptivo de los pacientes con ureterocele ectópico intervenidos en nuestro centro en los últimos 15 años. Todos los pacientes se tratan por vía endourológica, tanto el ureterocele como el reflujo vesicoureteral (RVU) postoperatorio. RESULTADOS: Se trataron 40 pacientes, 55% eran izquierdos y 5% bilaterales. La edad media al diagnóstico fue de 4,97 meses siendo de diagnóstico prenatal el 54,1%. En todos los pacientes menos uno se realizó una punción endourológica del ureterocele. La edad media en el momento de la cirugía era de 6,96 meses (0-1,11). La cirugía fue ambulante en un 94,9% de los pacientes. No se registraron complicaciones perioperatorias. En los últimos 30 pacientes no se realizó cistouretrografía miccional preoperatoria. Un 72,5% de los pacientes presentaron RVU postoperatorio (44,8% a pielón superior, 10,3% a pielón inferior, 17,2% a ambos, 6,9% al sistema contralateral y 20,7% bilateral), pero este se resolvió con un único procedimiento endoscópico en un 48,1% de los casos (curación del 65% de los pacientes con dos procedimientos). El RVU no se resolvió de forma endoscópica en 3 pacientes que requirieron un reimplante ureteral. Seis pacientes precisaron heminefrectomía (n= 3) o nefrectomía (n= 3) por anulación funcional e infecciones. CONCLUSION: El tratamiento endourológico del ureterocele ectópico es una técnica poco agresiva invasiva que consigue la resolución de la obstrucción de forma ambulante permitiendo diferir la cirugía vesical (si fuera necesaria) fuera del periodo neonatal.

Tratamiento endourológico del ureterocele ectópico. Experiencia en los últimos 15 años / Endourological treatment of ectopic ureterocele. Our experience in the last 15 years

Objetivo: Evaluar la eficacia del tratamiento endourológico delureterocele ectópico en niños en una serie amplia y con seguimientoa largo plazo. Material y métodos: Estudio retrospectivo descriptivo de los pacientes con ureterocele ectópico intervenidos en nuestro centro en losúltimos 15 años. Todos los pacientes se tratan por vía endourológica,tanto el ureterocele como el reflujo vesicoureteral (RVU) postoperatorio. Resultados: Se trataron 40 pacientes, 55% eran izquierdos y 5%bilaterales. La edad media al diagnóstico fue de 4,97 meses siendo dediagnóstico prenatal el 54,1%. En todos los pacientes menos uno serealizó una punción endourológica del ureterocele. La edad media enel momento de la cirugía era de 6,96 meses (0-1,11). La cirugía fue ambulante en un 94,9% de los pacientes. No se registraron complicacionesperioperatorias. En los últimos 30 pacientes no se realizó cistouretrografía miccional preoperatoria. Un 72,5% de los pacientes presentaron RVUpostoperatorio (44,8% a pielón superior, 10,3% a pielón inferior, 17,2%a ambos, 6,9% al sistema contralateral y 20,7% bilateral), pero este seresolvió con un único procedimiento endoscópico en un 48,1% de loscasos (curación del 65% de los pacientes con dos procedimientos). ElRVU no se resolvió de forma endoscópica en 3 pacientes que requirieronun reimplante ureteral. Seis pacientes precisaron heminefrectomía (n= 3)o nefrectomía (n= 3) por anulación funcional e infecciones. Conclusión: El tratamiento endourológico del ureterocele ectópicoes una técnica poco agresiva invasiva que consigue la resolución de laobstrucción de forma ambulante permitiendo diferir la cirugía vesical(si fuera necesaria) fuera del periodo neonatal.(AU)

Objective: To assess the efficacy of the endourological treatmentof ectopic ureterocele in children in a large series and with a long-termfollow-up. Materials and methods: A retrospective, descriptive study ofpatients with ectopic ureterocele who had undergone surgery in ourinstitution in the last 15 years was carried out. All patients were treatedusing an endourological approach, both for ureterocele and postoperativevesicoureteral reflux (VUR). Results: 40 patients were treated – 55% with left involvement and5% with bilateral involvement. Mean age at diagnosis was 4.97 months,with diagnosis being established prenatally in 54.1% of cases. In allpatients but one, endourological puncture of the ureterocele was conducted. Mean age at surgery was 6.96 months (0-1.11). Surgery wasperformed on an outpatient basis in 94.9% of patients. No perioperativecomplications were recorded. In the last 30 patients, preoperative voidingcystourethrography was not carried out. 72.5% of patients had postoper-ative VUR (44.8% into the upper pyelon, 10.3% into the lower pyelon,17.2% into both, 6.9% into the contralateral system, and 20.7% into thebilateral system), but it was resolved with a single endoscopic procedurein 48.1% of cases (65% of patients were healed with two procedures).VUR was not endoscopically resolved in 3 patients who required ureteral remplantation. 6 patients required heminephrectomy (n=3) ornephrectomy (n=3) as a result of functional impairment and infections. Conclusion: The endourological treatment of ectopic ureterocele isa little aggressive and little invasive technique that allows the obstructionto be resolved on an outpatient basis, which means bladder surgery – ifrequired – can be performed outside the neonatal period.(AU)

Buried penis secondary to ectopic scrotum. / Pene oculto secundario a ectopia escrotal.

INTRODUCTION: Ectopic scrotum is a rare clinical entity, potentially associated with other congenital abnormalities. We present the case of a patient with buried penis secondary to ectopic scrotum. The surgical technique was described, and a literature review was carried out. CLINICAL CASE: 1-year-old patient with ectopic right hemiscrotum and the testes within the scrotal sac. A double Z-plasty was performed with two flaps - one above the penis, surrounding the ectopic scrotum, and the other one at the scrotum to modify the bifid scrotum. The upper flap was rotated downwards, which allowed ectopy to be repaired, and the lower flap was used to repair bifidity. No postoperative complications were recorded. Follow-time was 6 months, with good final cosmetic results. DISCUSSION: Ectopic scrotum is an infrequent congenital malformation. Cutaneous rotation flaps with Z-plasties are a valid treatment option, with good long-term cosmetic results.

INTRODUCCION: La ectopia escrotal constituye una entidad clínica rara, que puede asociar otras anomalías congénitas. Presentamos el caso de un paciente con un pene oculto secundario a una ectopia escrotal, con descripción de la técnica quirúrgica y revisión de la literatura. CASO CLINICO: Paciente de un año de vida que presentaba un hemiescroto derecho ectópico con testes en bolsa. Se diseñó una doble Z-plastia con realización de dos colgajos, uno suprapeneano rodeando el escroto ectópico y otro escrotal para modificar el escroto bífido. El colgajo superior se rotó hacia abajo corrigiendo la ectopia y el colgajo inferior corregió la bifidez. No se produjeron complicaciones posoperatorias. El tiempo de seguimiento fue de seis meses con buen aspecto estético final. COMENTARIOS: El escroto ectópico es una malformación congénita infrecuente. Los colgajos de rotación cutáneos con Z-plastias son una opción válida de tratamiento con buenos resultados estéticos a largo plazo.

Pene oculto secundario a ectopia escrotal / Buried penis secondary to ectopic scrotum

Introducción: La ectopia escrotal constituye una entidad clínicarara, que puede asociar otras anomalías congénitas.Presentamos el caso de un paciente con un pene oculto secundario auna ectopia escrotal, con descripción de la técnica quirúrgica y revisiónde la literatura. Caso clínico: Paciente de un año de vida que presentaba un he-miescroto derecho ectópico con testes en bolsa. Se diseñó una dobleZ-plastia con realización de dos colgajos, uno suprapeneano rodeandoel escroto ectópico y otro escrotal para modificar el escroto bífido.El colgajo superior se rotó hacia abajo corrigiendo la ectopia y elcolgajo inferior corregió la bifidez. No se produjeron complicacionesposoperatorias. El tiempo de seguimiento fue de seis meses con buenaspecto estético final.Comentarios: El escroto ectópico es una malformación congénitainfrecuente. Los colgajos de rotación cutáneos con Z-plastias son una op-ción válida de tratamiento con buenos resultados estéticos a largo plazo.(AU)

Introduction: Ectopic scrotum is a rare clinical entity, potentiallyassociated with other congenital abnormalities. We present the case ofa patient with buried penis secondary to ectopic scrotum. The surgicaltechnique was described, and a literature review was carried out. Clinical case: 1-year-old patient with ectopic right hemiscrotumand the testes within the scrotal sac. A double Z-plasty was performedwith two flaps – one above the penis, surrounding the ectopic scrotum,and the other one at the scrotum to modify the bifid scrotum. The up-per flap was rotated downwards, which allowed ectopy to be repaired,and the lower flap was used to repair bifidity. No postoperative com-plications were recorded. Follow-time was 6 months, with good finalcosmetic results. Discussion: Ectopic scrotum is an infrequent congenital malfor-mation. Cutaneous rotation flaps with Z-plasties are a valid treatmentoption, with good long-term cosmetic results.(AU)

Therapeutic possibilities for urolithiasis in childhood. / Posibilidades terapéuticas de las urolitiasis en la infancia.

OBJECTIVES: We present our case studies on paediatric urolithiasis, the techniques employed in its treatment and its results. MATERIAL AND METHODS: A retrospective study of paediatric urolithiasis of the upper urinary tract (UUT) treated at our centre between 2003 and 2014. We recorded demographic, clinical, diagnostic and therapeutic data and the complications. The therapeutic plan was recorded as isolated (extracorporeal lithotripsy, ureterorenoscopy, nephrolithotomy or surgery) or combined therapy. RESULTS: We examined 41 renal/urethral units in 32 patients. The median age was 5 years (range, 11 months-14 years). The mean size was 12.9cm (±7.3mm). The locations were as follows: 23 (56%) in the renal pelvis (staghorn in 15 cases), 10 (24) in lower calyx and 8 (20%) in the urethra. We performed 80 procedures, with no differences in the age groups, which resulted in 12 complications (15%) but no septic condition secondary to lithotripsy. Stone removal from the urethra had a 100% success rate with the ureterorenoscopy. The overall cure rate was 90%. CONCLUSION: The paediatric urolithiasis approach offers multiple alternatives. It is therefore important to tailor the procedure according to the size, location and composition of the stone. In our centre, the use of paediatric extracorporeal shock wave lithotripsy is safer. Ureterorenoscopy, semirigid or flexible, provides excellent results in ureters. Percutaneous nephrolithotomy with minimal access can be performed on small children and nursing infants.

Late diagnosis of posterior urethral valves.

CLINICAL PROBLEM: We diagnosed 8 patients with late-stage posterior urethral valves (PUV) between 1 and 14 years of age. Five patients complained of symptoms related to voiding dysfunction. The other 3 patients required urethrocystoscopy for other reasons (hypospadias fistulae, difficulty with catheterisation and high-grade vesicoureteral reflux [VUR]). A second review of the first 2 patients' medical history showed voiding dysfunction symptoms. All patients underwent preoperative ultrasonography: 3 patients had normal results and 5 had renal or vesical disorders. The diagnosis was reached through voiding cystourethrogram (VCUG), and 4 patients underwent urodynamic studies. The diagnosis was confirmed by urethrocystoscopy, performing valve electrofulguration. We performed urethrocystoscopy during the check-ups at 3-6 weeks and observed no stenosis. The symptoms disappeared for all patients after 20 months of follow-up. The patient with VUR was cured. The ultrasounds showed no progression of the renal involvement and showed improvement in the vesical involvement. The velocimetries during check-ups presented curves within normal ranges. DISCUSSION: Most children with PUV are diagnosed through ultrasound during the neonatal period. Some patients present PUV at later ages with diverse symptoms, which impedes its diagnosis. We should suspect PUV in male patients with symptoms of voiding dysfunction, either when they have normal or pathological results from ultrasounds or VCUG. We recommend performing urethrocystoscopy to rule out urethral obstruction.

Percutaneous Endopyelotomy over High Pressure Balloon for Recurrent Ureteropelvic Junction Obstruction in Children.

PURPOSE: We analyzed results of percutaneous endopyelotomy for treatment of recurrent ureteropelvic junction obstruction in children with failed primary pyeloplasty. MATERIALS AND METHODS: We retrospectively studied all patients treated at our department for recurrent ureteropelvic junction obstruction between 2009 and 2013. All procedures were performed using a 12Fr miniperc approach with the patient in the supine position. A high pressure balloon was inflated at the ureteropelvic junction obstruction. To improve the exposure of the cutting area, the ureteropelvic junction was introduced into the renal pelvis by pushing the high pressure balloon. Modified percutaneous endopyelotomy was done with monopolar electrocautery over it to avoid damaging nearby structures. Medical data and imaging studies before and after the first surgery and percutaneous endopyelotomy were reviewed. RESULTS: Seven boys and 2 girls (mean ± SD age 5.8 ± 4.9 years) with recurrent ureteropelvic junction obstruction were treated at our hospital between July 2009 and July 2013. Three patients had a solitary kidney. Three children had previously undergone 2 procedures. Mean ± SD operative time was 61.0 ± 17.9 minutes, postoperative hospital stay was 3.8 ± 1.9 days and followup after modified percutaneous endopyelotomy was 39.3 ± 25.2 months. All patients were rendered symptom-free. Postoperative ultrasound and renogram revealed that modified percutaneous endopyelotomy was successful in 7 renal units. In 2 patients hydronephrosis improvement was not significant. Three patients suffered postoperative complications, consisting of hematuria, obstruction of Double-J® stent and paralytic ileus in 1 each. CONCLUSIONS: Modified percutaneous endopyelotomy is a fairly effective technique to treat recurrent ureteropelvic junction obstruction after failed pyeloplasty in children. However, in some cases potentially serious complications can occur.

[Fast track protocol for children undergoing appendicectomy]. / Protocolo de alta precoz tras apendicectomía en niños.

BACKGROUND: Multiple approaches to the treatment of simple and complicated (gangrenous or perforated) appendicitis in children have been promoted. Our goal is to develop a new protocol for these patients that allows shorter hospital stays without increasing complications rates. METHODS: Prospective collected data of patients undergoing appendicitis treated according to the new protocol for a period of 7 months were reviewed. This protocol consists on antibiotic prophylaxis in all cases continued with triple antibiotic regimen in complicated appendicitis. Antibiotics were stopped when specific clinical and laboratory criteria were met. Outcomes are compared to a historical group of patients treated under standard protocol (antibiotic prophylaxis followed by 48 hours of dual antibiotic therapy in simple appendicitis or 5 day-course of triple antibiotic therapy in complicated as postooperative antibiotic regimen). RESULTS: A total of 196 patients (96 current group and 100 historical group) were reviewed. In simple appendicitis average length of postoperative hospitalization was significantly lower in the current group (no statistical difference). 52.9% of complicated appendicitis in the current group were discharged home before 5th day without increasing the complication rate. When a wound infection or intraabdominal abscess occurs thrombocytosis (52%) and prolonged vomiting are the most frequent symptoms. CONCLUSION: No further postoperative treatment is needed in simple appendicitis. In complicated appendictis a short course of antibiotics according to clinical and laboratory criteria allows early discharge without major morbidity. Prolonged postoperative vomiting and thrombocytosis suggest infectious complications.

OBJETIVOS: Existen múltiples modalidades de tratamiento antibioterápico tras una apendicectomía en niños. Nuestro objetivo es desarrollar un nuevo protocolo para el tratamiento de las apendicitis que permita acortar la estancia hospitalaria sin aumentar las complicaciones. MATERIAL Y METODOS: Estudio prospectivo que analiza a los pacientes intervenidos de apendicitis tratados según el nuevo protocolo de antibioterapia durante un periodo de 7 meses. Dicho protocolo consiste en profilaxis quirúrgica en todos los casos y continuar con triple antibioterapia en las evolucionadas, con una duración variable según criterios clínico-analíticos establecidos previamente. Se comparan los resultados con los de un grupo histórico de pacientes tratados con el protocolo clásico (profilaxis y 48 horas de doble antibioterapia en las flemonosas y 5 días de triple en las evolucionadas). RESULTADOS: Se estudian un total de 196 pacientes (96 grupo actual y 100 grupo histórico). En las apendicitis flemonosas la estancia hospitalaria postquirúrgica media es significativamente menor en el grupo actual sin encontrar diferencias estadísticas en la tasa de complicaciones. El 52,9% de las apendicitis evolucionadas del grupo actual fueron dadas de alta antes del 5º día sin aumentar la tasa de complicaciones. De los pacientes que presentaron una complicación infecciosa el 52% asociaban trombocitosis y la clínica más frecuente fue de vómitos prolongados. CONCLUSIONES: No es necesario tratamiento antibioterápico postoperatorio en apendicitis simples. En las evolucionadas un tratamiento corto de antibióticos según criterios clínico-analíticos permite un alta precoz sin mayor morbilidad asociada. Los vómitos prolongados y la trombocitosis son indicadores de complicaciones infecciosas postoperatorias.

["Fast-track" in pediatric urologic surgery: pronenephrectomy]. / Fast-track en urología infantil: nefrectomía en prono ambulatoria.

UNLABELLED: INTRODUCTION AND OBJETIVES: Minimal invasive surgery trends to get prompt recovery in terms of inmediate deambulation and early discharge from hospital, without increasing patient's discomfort neither postoperative complications. This "fast-track" protocol is being progresively introduced in a crescent number of urological procedures. We are evaluating the viability of applying it in retroperitoneoscopic prone- position nephrectomy. METHODS AND MATERIALS: We have performed a retrospective review of the clinical reports of the patients submitted to prone nephrectomy with hospitalization between 2007 and 2011 and we present patients submitted to this procedure in an outpatient basis (less than 8 hours hospital stay) from 2011. We have recorded epidemiological factors, diagnosis, surgical time, first postoperative week analgesic requirements, parents cofort and postoperative complications. RESULTS: All the procedures were performed retroperitoneoscopically in prone position using two trocars. We included 34 nephrectomies with a mean surgical time of 107 minutes. Mean postoperative stay was under 24 hours in 23 patients, two of them were discharged in the first 8 hours after the procedure. Hospital stay over this time was due to concomitant pre-existent pathology in 6 patients and to non urological fever in the remaining 3. Analgesia was excellent in every patient with endovenous non-steroid drugs, registering no pain after administering them orally. There were no complications. CONCLUSIONS: We believe that "fast-track" requirements can be applied to prone-retroperitoneoscopic nephrectomy in pediatric population, as long as they have no associated pathology. In our experience this surgical procedure can be included in day-case surgery, increasing patient's confort and with a positive economical impact.

Infección de la herida quirúrgica neonatal: análisis de factores de riesgo / Surgical Wound infections in newborns: analysis of risk factors

La infección de herida quirúrgica (IHQ) en neonatos tiene una elevada incidencia y morbilidad, que prolonga la estancia hospitalaria y empeora el pronóstico. Nuestro objetivo es analizar los factores de riesgo relacionados con la aparición de infección de herida quirúrgica para identificar pacientes susceptibles y los factores modificables sobre los que actuar.material y métodos. Estudio de casos y controles sobre una muestra de 90 intervenciones quirúrgicas realizadas en recién nacidos. Se analizan factores de riesgo pre, intra y postquirúrgicos como posible causa de IHQ. Resultados. Existen diferencias estadísticamente significativas para el desarrollo de IHQ en cirugías contaminadas o sucias, reintervenciones, lavado de cavidad abdominal intraoperatorio, estancia hospitalaria prequirúrgica mayor de 8 días y cierre de la herida con sutura reabsorbible.Asimismo, encontramos una mayor tendencia a la infección en pacientes pretérminos, dependientes de ventilación mecánica, portadores de acceso venoso central y que han presentado una infección previa con cultivo positivo.No hallamos relación entre IHQ y el tiempo quirúrgico, el sangrado durante la cirugía o el antiséptico utilizado.Conclusiones. Los pacientes reintervenidos, en los que se realiza cirugía contaminada o sucia, se emplea material reabsorbible para sutura de la piel y con una estancia hospitalaria prequirúrgica mayor de 8 días son pacientes de alto riesgo para desarrollar IHQ y requerirán un especial cuidado y antibioterapia más agresiva (AU)

The incidence of surgical wound infections in neonates is high and it has an associated morbidity which extends hospital stay and gets a worse prognosis. The purpose of this study is to analyze the risk factors associated with the development of surgical wound infection and to identify susceptible patients with modifiable factors.material and methods. Case-control study of 90 surgical procedures underwent in newborns. We analyze pre-, intra- and postoperative risk factors.main results. There are statically significant differences in terms of wound infection in dirty and contaminated surgery, reoperation, lavage of abdominal cavity, preoperative hospital stay longer than 8 days and wound closure with reabsorbable material.Furthermore, the surgical site infection is more likely in preterms patients, with a previous positive culture infection and the use of invasive devices as mechanical ventilation or central venous access.We found no relationship between wound infection and surgical time, bleeding during surgery and preoperative skin preparation with antiseptics.Conclusions. Reoperative patients, in which dirty and contaminated surgery is performed, absorbable material for skin is used and who have a preoperative hospital stay longer than 8 days, are in risk of developping wound infection and they will require an aggressive antibiotic treatment and special postsurgical care (AU)

Dilatación con balón de alta presión como tratamiento del ureterocele ortotópico / High-Pressure Balloon Dilatation for Treatment of Orthotopic Ureterocele

Objetivo: La punción o destechamiento endoscópico es el tratamiento más utilizado en la actualidad tanto para los ureteroceles ortotópicos como para los ectópicos. Sin embargo, tiene una elevada incidencia de reflujo vesicoureteral secundario y de procedimientos quirúrgicos posteriores en ambos grupos. Presentamos una nueva técnica de tratamiento de los ureteroceles ortotópicos. Material y métodos: Analizamos 4 pacientes con ureteroceles ortotópicos de edad 9,7±6,2 meses tratados mediante dilatación del meato del ureterocele. Ningún caso presentaba sistemas duplicados ni reflujo vesicoureteral. La indicación fue pionefrosis en 2 niños y empeoramiento progresivo de la hidronefrosis en otros 2. La dilatación fue realizada con balón de alta presión de 5 o 6mm tras tutorizar el ureterocele con guía de 0,014”. Resultados: No hubo complicaciones intraoperatorias ni post-operatorias, siendo el tiempo quirúrgico de 24±9min. Todos los pacientes fueron dados de alta a las 24 h post-operatorias. En todos los niños desapareció la ureterohidronefrosis y permanecen asintomáticos tras 35±22,5 meses de seguimiento. No hubo ningún caso de reflujo vesicoureteral secundario y la gammagrafía renal se mantuvo sin cambios tras el tratamiento. Conclusiones: La dilatación con balón de alta presión del meato del ureterocele en los casos ortotópicos es una técnica rápida, segura y con buenos resultados a largo plazo. No encontramos en nuestra serie ningún caso de reflujo vesicoureteral secundario ni de procedimientos quirúrgicos posteriores, por lo que consideramos que podría ofertar importantes beneficios respecto a la punción en este tipo de pacientes (AU)

Objective: Transurethral puncture or endoscopic unroofing is the best treatment currently used for both orthotopic and ectopic ureteroceles. However, they have a high incidence of secondary vesicoureteral reflux and subsequent procedures in both groups. We present a new technique for treatment of orthotopic ureterocele. Material and methods: We have analyzed 4 patients with orthotopic ureterocele (9.7±6.2 months old) treated by dilatation of the meatus of the ureterocele. No patient had vesicoureteral reflux or duplicate systems. The indication was pyonephrosis in 2 children and progressive worsening of hydronephrosis in 2. Dilatation was performed with 5 or 6mm high-pressure balloon after inserting a stent with guidewire of 0.014” to the ureterocele. Results: There were no intraoperative or postoperative complications, surgical time being 24±9minutes. All patients were discharged at 24 postoperative hours. Ureterohydronephrosis disappeared in all the children and they continue asymptomatic after 35±22.5 months of follow-up. There were no cases of secondary vesicoureteral reflux and renal scan was unchanged after treatment. Conclusions: High pressure balloon dilatation of the meatus in cases of orthotopic ureterocele is a fast, safe and successful surgical technique. We did not find any cases of secondary vesicoureteral reflux or subsequent procedures in our series, so we believe this may offer significant benefits over the transurethral puncture in such patients (AU)

[High-pressure balloon dilatation for treatment of orthotopic ureterocele]. / Dilatación con balón de alta presión como tratamiento del ureterocele ortotópico.

OBJECTIVE: Transurethral puncture or endoscopic unroofing is the best treatment currently used for both orthotopic and ectopic ureteroceles. However, they have a high incidence of secondary vesicoureteral reflux and subsequent procedures in both groups. We present a new technique for treatment of orthotopic ureterocele. MATERIAL AND METHODS: We have analyzed 4 patients with orthotopic ureterocele (9.7 ± 6.2 months old) treated by dilatation of the meatus of the ureterocele. No patient had vesicoureteral reflux or duplicate systems. The indication was pyonephrosis in 2 children and progressive worsening of hydronephrosis in 2. Dilatation was performed with 5 or 6mm high-pressure balloon after inserting a stent with guidewire of 0.014" to the ureterocele. RESULTS: There were no intraoperative or postoperative complications, surgical time being 24 ± 9minutes. All patients were discharged at 24 postoperative hours. Ureterohydronephrosis disappeared in all the children and they continue asymptomatic after 35 ± 22.5 months of follow-up. There were no cases of secondary vesicoureteral reflux and renal scan was unchanged after treatment. CONCLUSIONS: High pressure balloon dilatation of the meatus in cases of orthotopic ureterocele is a fast, safe and successful surgical technique. We did not find any cases of secondary vesicoureteral reflux or subsequent procedures in our series, so we believe this may offer significant benefits over the transurethral puncture in such patients.

[Surgical wound infections in newborns: analysis of risk factors]. / Infección de la herida quirúrgica neonatal: análisis de factores de riesgo.

UNLABELLED: The incidence of surgical wound infections in neonates is high and it has an associated morbidity which extends hospital stay and gets a worse prognosis. The purpose of this study is to analyze the risk factors associated with the development of surgical wound infection and to identify susceptible patients with modifiable factors. MATERIAL AND METHODS: Case-control study of 90 surgical procedures underwent in newborns. We analyze pre-, intra- and postoperative risk factors. MAIN RESULTS: There are statically significant differences in terms of wound infection in dirty and contaminated surgery, reoperation, lavage of abdominal cavity, preoperative hospital stay longer than 8 days and wound closure with reabsorbable material. Furthermore, the surgical site infection is more likely in preterms patients, with a previous positive culture infection and the use of invasive devices as mechanical ventilation or central venous access. We found no relationship between wound infection and surgical time, bleeding during surgery and preoperative skin preparation with antiseptics. CONCLUSIONS: Reoperative patients, in which dirty and contaminated surgery is performed, absorbable material for skin is used and who have a preoperative hospital stay longer than 8 days, are in risk of developping wound infection and they will require an aggressive antibiotic treatment and special postsurgical care.

Endopielotomía endoscópica retrógrada con balón de corte frío (Cutting-BaloonTM): experiencia inicial en niños con estenosis pieloureteral / Cold-knife retrograde endoscopic endopyelotomy (cutting-balloontm) in children with ureteropelvic junction obstruction: early results

Objetivos. Presentar nuestra experiencia inicial en el uso del Cutting-Balloon TM en el tratamiento de estenosis pieloureterales (EPUs) resistentes o recidivadas tras una dilatación endourológica retrógrada con balón de alta presión (DERBAP). Material y métodos. Los pacientes con hidronefrosis progresiva y renograma obstructivo se trataron mediante DERBAP. En aquellos pacientes con EPU resistente (persistencia de la muesca tras la dilatación)o con EPU recidivada, se consideró el uso del Cutting-BalloonTM como alternativa a nuestro protocolo habitual (nueva DERBAP ocirugía abierta). Tras el procedimiento mantuvimos un tutor ureteral doble J durante 4-6 semanas. El seguimiento se realizó a los 3 meses de la retirada del tutor y, posteriormente, cada 6 meses, repitiendo ecografía y renograma. sultados. Entre 2008 y 2010 tratamos con Cutting-BalloonTM a 5 pacientes (4 varones, 1 mujer) con EPU (izquierda: 3, derecha: 1,bilateral: 1), con una edad media de 3 meses (rango: 10 días-7 meses).Cuatro casos tenían EPU resistente y 1 caso EPU recidivada. Tras el procedimiento y durante un seguimiento medio de 12 meses (rango:9-18 meses), ningún paciente requirió tratamiento adicional. Cuatro pacientes presentaron mejoría de la hidronefrosis y mantuvieron una función renal diferencial (FRD) normal. Un paciente (FRD inicial18%) no mejoró. No se registraron complicaciones asociadas a la intervención. Conclusiones. La endopielotomía retrógrada con Cutting-BalloonTM parece una opción terapéutica con buenos resultados en el tratamiento de EPUs resistentes o recidivadas tras una primera DERBAP. Creemos que son necesarios más estudios para confirmar estos Hallazgos (AU)

Background. To present our early experience in the use of Cutting-BalloonTM for the treatment of resistant or relapsed ureteropelvic junction obstruction (UPJO) after a prior endourological retrograde high-pressure balloon dilatation (RHPBD).Materials and methods. Patients with progressive hydronephrosis and impaired drainage of the renal pelvis on a diuretic renal scan were treated with RHPBD. In those patients with resistant UPJO (waist persistence after dilatation) or relapsed UPJO, we consider using a Cutting-BalloonTM as an alternative to our current protocol (second RHPBD or open surgery). A JJ stent was placed following the procedure, and removed at 4-6 weeks. Outcomes were evaluated 3 and 6 months afters tent removal, and every 6 months thereafter, repeating renal ultrasonography and diuretic renal scan. Results. Between 2008 and 2010 we treated with Cutting-balloonTM5 patients (4 male, 1 woman) with UPJO (left side: 3 cases, right side: 1case, bilateral: 1 case) with a mean age of 3 months (range, 10 days to 7months). Four cases had resistant UPJO and 1 case relapsed UPJO. After the procedure, and during the follow-up period of 12 months (range,9-18 months), no further treatment was necessary. Four patients had improvement of hydronephrosis, with normal relative renal function(RRF). One patient (RRF 18% before treatment) did not improve. No periprocedural complications occurred. Conclusions. Cutting-balloonTM retrograde endopyelotomy seems to be a treatment with encouraging early results for resistant and relapsed UPJO, after a prior RHPBD. We believe that further clinical evaluation is needed to confi rm these findings (AU)

Toxina botulínica en el fracaso del cierre de derivaciones urinarias altas / Botulinum toxin in the failure of high urinary diversion closure

Introducción: El cierre de las derivaciones urinarias realizadas en la edad neonatal tiene un no despreciable porcentaje de fracasos en pacientes con patología vesical. Presentamos el uso de toxina botulínica como alternativa útil y mínimamente invasiva para el tratamiento en estos pacientes. Material y métodos: Presentamos dos pacientes monorrenos con valvas de uretra posterior (VUP) en los que fue necesario realizar ureterostomía por insuficiencia renal severa. En ambos pacientes fracasó el intento posterior de cierre de la derivación. Con 4 y 10 años de edad presentaban vejigas conocidas comúnmente como «vejigas secas», con baja capacidad (20 y 110ml), mala acomodación (1,5 y 3,1ml/ cm H2O) y altas presiones de apertura del detrusor. Se realizó punción en el detrusor de toxina botulínica-A 10 UI/ kg en una y dos ocasiones respectivamente previas al cierre de la derivación. Resultados: En ninguno de los pacientes hubo empeoramiento clínico ni ecográfico tras el cierre de la derivación, permaneciendo la función renal sin cambios respecto a la previa tras uno y 4 años de seguimiento, respectivamente. La videourodinámica al año de la intervención muestra una gran mejoría de la capacidad vesical (451 y 250ml), de la acomodación (20,4 y 81,9ml/ cm H2O) y de la presión de apertura del detrusor. Conclusiones: El cierre de las derivaciones urinarias altas tiene un porcentaje de fracasos elevado en niños con vejigas patológicas con presiones elevadas. La toxina botulínica puede ser útil como tratamiento vesical previo al cierre de la derivación, especialmente en pacientes monorrenos (AU)

Introduction: The closure of urinary diversions performed on newly born infants has a notable failure percentage in patients with bladder disease. We present the use of botulinum toxin as a useful and minimally invasive alternative to treat these patients. Material and methods: We present two patients with a single kidney and with posterior urethral valves (PUV), in whom it was necessary to perform a ureterostomy due to chronic kidney disease. In both patients, the subsequent attempt to close the diversion failed. Aged 4 and 10years respectively, they presented bladders commonly known as “dry bladders”, with a low capacity (20 and 110ml), bad adaptation (1.5 and 3.1ml/ cm H2O) and high opening detrusor pressure. A 10 UI/Kg botulinum toxin A puncture was applied in the detrusor on one and two occasions respectively, prior to the closure of the diversion. Results: Neither of the patients suffered clinical or ecographic worsening after the closure of the diversion and their kidney function continued without change with respect to the first diversion after one and four years of follow-up respectively. One year after the surgical procedure, video urodynamics showed a significant improvement in bladder capacity (451 and 250ml), in adaptation (20.4 and 81.9ml/cmH2O) and in the opening detrusor pressure. Conclusions: The closure of high urinary diversions has a high failure percentage in infants with pathological high-pressure bladders. Botulinum toxin may be useful as bladder treatment prior to closure of the diversion, especially in patients with a single kidney (AU)

Simplificación del tratamiento quirúrgico del pene oculto / Simplification of the surgical treatment of a hidden penis

Introducción: El tratamiento del pene oculto consiste en llevar a cabo una exteriorización completa del cuerpo del pene, que resulte efectiva desde el punto de vista funcional y estético. Pacientes y métodos: A lo largo de 15 meses (febrero de 2008 a mayo de 2009) hemos tratado 7 niños (edad media: 4,6 años) con pene oculto (5 con pene enterrado, uno palmeado y otro atrapado) con la reconstrucción de Borsellino modificada mediante incisión en «S» en la parte dorsal. En un paciente se realizó lipectomía púbica a través de la misma incisión. La indicación quirúrgica fue por motivos estéticos en todos los casos, fimosis secundaria en 4, balanitis de repetición en uno y dolor en otro. Resultados: La estancia hospitalaria fue de 24 horas. Con un seguimiento a corto plazo (1-12 meses) las complicaciones detectadas fueron: recidiva parcial, linfedema posquirúrgico y cicatriz hipertrófica, cada una de ellas en un caso. Pacientes y padres se encuentran satisfechos con el resultado. Conclusiones: La técnica que presentamos consigue un buen resultado cosmético y presenta pocas complicaciones inmediatas. La sustitución de las dos incisiones dorsales por una sola en «S» permite lipectomía simultánea sin nueva incisión (AU)

Introduction: The treatment of a hidden penis consists of completely and effectively exteriorizing the penile shaft from a functional and aesthetic point of view. Patients and methods: Over a period of 15 months (02/2008-05/2009), we treated 7 children (mean age 4.6 years) with hidden penis (five had a buried penis, one had a webbed penis and another a trapped penis) using the Borsellino reconstruction technique modified with an ‘‘S’’ dorsal incision. We performed a pubic lipectomy in one patient through the same incision. Surgical indication was for aesthetic reasons in all the cases, secondary phimosis in four, repeated balanitis in one and pain in another. Results: Hospital stay was 24 hours. With a short-term follow-up (1-12 months), we detected the following complications: partial recurrence, post-surgical lymphedema and hypertrophic scarring, each of them in one case. Patients and parents were satisfied with the result. Conclusions: The technique that we present achieves good cosmetic results and has few immediate complications. The substitution of the two dorsal incisions with one ‘‘S’’ incision allows simultaneous lipectomy without the need for another incision (AU)

[Simplification of the surgical treatment of a hidden penis]. / Simplificación del tratamiento quirúrgico del pene oculto.

INTRODUCTION: The treatment of a hidden penis consists of completely and effectively exteriorizing the penile shaft from a functional and aesthetic point of view. PATIENTS AND METHODS: Over a period of 15 months (02/2008-05/2009), we treated 7 children (mean age 4.6 years) with hidden penis (five had a buried penis, one had a webbed penis and another a trapped penis) using the Borsellino reconstruction technique modified with an "S" dorsal incision. We performed a pubic lipectomy in one patient through the same incision. Surgical indication was for aesthetic reasons in all the cases, secondary phimosis in four, repeated balanitis in one and pain in another. RESULTS: Hospital stay was 24 hours. With a short-term follow-up (1-12 months), we detected the following complications: partial recurrence, post-surgical lymphedema and hypertrophic scarring, each of them in one case. Patients and parents were satisfied with the result. CONCLUSIONS: The technique that we present achieves good cosmetic results and has few immediate complications. The substitution of the two dorsal incisions with one "S" incision allows simultaneous lipectomy without the need for another incision.

[Botulinum toxin in the failure of high urinary diversion closure]. / Toxina botulínica en el fracaso del cierre de derivaciones urinarias altas.

INTRODUCTION: The closure of urinary diversions performed on newly born infants has a notable failure percentage in patients with bladder disease. We present the use of botulinum toxin as a useful and minimally invasive alternative to treat these patients. MATERIAL AND METHODS: We present two patients with a single kidney and with posterior urethral valves (PUV), in whom it was necessary to perform a ureterostomy due to chronic kidney disease. In both patients, the subsequent attempt to close the diversion failed. Aged 4 and 10 years respectively, they presented bladders commonly known as "dry bladders", with a low capacity (20 and 110 ml), bad adaptation (1.5 and 3.1 ml/ cm H(2)O) and high opening detrusor pressure. A 10 UI/Kg botulinum toxin A puncture was applied in the detrusor on one and two occasions respectively, prior to the closure of the diversion. RESULTS: Neither of the patients suffered clinical or ecographic worsening after the closure of the diversion and their kidney function continued without change with respect to the first diversion after one and four years of follow-up respectively. One year after the surgical procedure, video urodynamics showed a significant improvement in bladder capacity (451 and 250 ml), in adaptation (20.4 and 81.9 ml/ cmH(2)O) and in the opening detrusor pressure. CONCLUSIONS: The closure of high urinary diversions has a high failure percentage in infants with pathological high-pressure bladders. Botulinum toxin may be useful as bladder treatment prior to closure of the diversion, especially in patients with a single kidney.

Es la inyección de Toxina botulínica-A en el detrusor una alternativa a la ampliación vesical en niños / Injection of Botulinum Toxin (BTX-A) in Children with Bladder Dysfunction due to Detrusor Overactivity

Introducción: la disfunción vesical causa incontinencia urinaria y daño renal en niños. Cuando el tratamiento con anticolinérgicos y cateterismo vesical intermitente fracasa, la alternativa terapéutica es la ampliación vesical. Pacientes y métodos: entre 2005 y 2009 se ha realizado un estudio prospectivo con Botox® inyectado en el detrusor de niños por disfunción vesical con alta presión, a pesar del tratamiento anticolinérgico. Se valora la evolución urodinámica, clínica y radiológica, antes y a las 4 semanas, 6 meses y un año tras la inyección (10 U/kg de peso hasta 300 U). La reinyección se indicó ante el empeoramiento clínico o urodinámico. Se empleó el test de Wilcoxon para el análisis estadístico de los parámetros urodinámicos. Resultados: se trataron 12 pacientes, 11 de causa neurógena (91,7%) y uno por válvulas de uretra posterior (8,4%). La mediana de edad fue 12,6 (4,3-17,8) años y el seguimiento 40,8 (16,9-45,7) meses. A las 4 semanas se produjo mejoría en la capacidad vesical, acomodación y presión del detrusor en todos los pacientes salvo en dos (16,7%). Esta mejoría fue disminuyendo a partir de 6 meses, aunque inyecciones sucesivas produjeron cambios similares. Un paciente (8,3%) recibió una dosis, 6 (50%) dos y 5 (41,7%) tres. En 8 pacientes (66,7%) la mejoría clínica y urodinámica permitió evitar ampliación vesical. Conclusiones: la inyección de toxina botulínica repetida en el detrusor es una herramienta terapéutica frente a disfunciones vesicales con alta presión y baja acomodación en niños. Puede sustituir a la ampliación vesical en algunos casos, pero se necesitan estudios con largo seguimiento para evaluar apropiadamente su seguridad y eficacia (AU)

Introduction: bladder dysfunction causes urinary incontinence and kidney damage in children. When treatment with anticholinergics and intermittent bladder catheterization fails, the alternative therapy is bladder augmentation. Patients and methods: between 2005 and 2009, a prospective study was carried out with Botox® injected into the detrusor of children suffering from high-pressure bladder despite anticholinergic treatment. We assessed their urodynamic, clinical and radiological evolution prior to and at 4 weeks, 6 months and 1 year after the injection (10 u/kg of weight up to 300 u). Reinjection was indicated in the event of clinical or urodynamic worsening. We employed the Wilcoxom test to statistically analyze the urodynamic parameters. Results: 12 patients were treated, 11 with neurogenic bladder (91.7%) and 1 with posterior urethral valves (8.4%). The mean age was 12.6 (4.3-17.8) years and follow-up took place after 40.8 (16.9-45-7) months. Bladder capacity, detrusor accommodation and pressure improved after 4 weeks in all the patients except in 2 (16.7%). This improvement decreased after 6 months, although successive injections produced similar changes. One patient (8.3%) received 1 dose, six (50%) two doses and five (41.7%) received three. Clinical and urodynamic improvement in 8 patients (66.7%) prevented bladder augmentation. Conclusions: repeated botulinum toxin injection in the detrusor is a therapeutic instrument for high pressure and low accommodation bladders in children. It could replace bladder augmentation in some cases, however further studies with long-term follow-up care are required to appropriately evaluate its safety and effectiveness (AU)

[Injection of botulinum toxin (BTX-A) in children with bladder dysfunction due to detrusor overactivity]. / Es la inyección de Toxina botulínica-A en el detrusor una alternativa a la ampliación vesical en niños.

INTRODUCTION: bladder dysfunction causes urinary incontinence and kidney damage in children. When treatment with anticholinergics and intermittent bladder catheterization fails, the alternative therapy is bladder augmentation. PATIENTS AND METHODS: between 2005 and 2009, a prospective study was carried out with Botox(®) injected into the detrusor of children suffering from high-pressure bladder despite anticholinergic treatment. We assessed their urodynamic, clinical and radiological evolution prior to and at 4 weeks, 6 months and 1 year after the injection (10 u/kg of weight up to 300 u). Reinjection was indicated in the event of clinical or urodynamic worsening. We employed the Wilcoxom test to statistically analyze the urodynamic parameters. RESULTS: 12 patients were treated, 11 with neurogenic bladder (91.7%) and 1 with posterior urethral valves (8.4%). The mean age was 12.6 (4.3-17.8) years and follow-up took place after 40.8 (16.9-45-7) months. Bladder capacity, detrusor accommodation and pressure improved after 4 weeks in all the patients except in 2 (16.7%). This improvement decreased after 6 months, although successive injections produced similar changes. One patient (8.3%) received 1 dose, six (50%) two doses and five (41.7%) received three. Clinical and urodynamic improvement in 8 patients (66.7%) prevented bladder augmentation. CONCLUSIONS: repeated botulinum toxin injection in the detrusor is a therapeutic instrument for high pressure and low accommodation bladders in children. It could replace bladder augmentation in some cases, however further studies with long-term follow-up care are required to appropriately evaluate its safety and effectiveness.