[Manual detorsion and elective orchiopexy as an alternative treatment for acute testicular torsion in children]. / Detorsión manual y cirugía diferida en la torsión testicular aguda.

AIM: To present our experience in pediatric patients with testicular torsion (TT) treated by manual detorsion (MD). PATIENTS AND METHODS: Retrospective analysis of patients treated by MD in a 10-year period in a single center. Description of symptoms, detorsion technique, follow-up and complications. RESULTS: 76 patients diagnosed with TT were studied in a 10-year period. 16 patients were treated by MD. Mean age was 12 years (Range: 10-13 years) and time from onset of pain was 5.25 hours (±4,2). Left testicle was affected in 75% (n=12). Detorsion maneuver was performed by a pediatric surgeon at the radiology room, in counter-clockwise direction in the right testicle and clockwise direction in the left testicle in all cases. The success was defined as the relief of pain, normal physical examination and was confirmed by Doppler ultrasound performed immediately after MD. MD was effective in 75% (n=12) and orchiopexy was performed under elective conditions at median time of 2 weeks (0-5 weeks). MD was unsuccessful in 3 patients and emergency orchiopexy was performed with no testicular loss. 1 patient had a second MD maneuver for incomplete detorsion. No short or long term complication nor testicular atrophy was observed. CONCLUSION: MD and elective orchiopexy seems to be an efficient and reliable procedure in the treatment of TT in children. Further studies may be necessary to establish its safety and indications.

OBJETIVO: Presentar nuestra experiencia, protocolo e indicaciones de la detorsión testicular manual (DM) como tratamiento en la torsión testicular (TT). MATERIAL Y METODOS: Estudio retrospectivo de pacientes con TT tratados mediante DM en los últimos 10 años. Analizamos tiempo de evolución, técnica de detorsión, evolución y complicaciones. RESULTADOS: 76 pacientes diagnosticados de TT en los últimos 10 años, de los cuales 21% (n=16) fueron tratados mediante DM. Edad media de 12 años (rango: 10-13 años) y duración del comienzo del dolor de 5,25 horas (± 4,2 horas), mayor frecuencia en el testículo izquierdo (75%, n=12). La técnica de DM se realizó ecoguiada, en dirección horaria y antihoraria en el lado derecho e izquierdo, respectivamente. El éxito se definió como el alivio inmediato de los síntomas, hallazgos normales en el examen físico y comprobación de la recuperación del flujo mediante ecografía tras la maniobra de detorsión. Fue efectiva en el 75% (n=12), siendo dados de alta a las 24 horas, tras realizar nueva ecografía de control y comprobar normalidad en el flujo. Orquidopexia vía escrotal diferida a las 2 semanas (rango: 0-5,4 semanas). En tres pacientes (18,8%) se realizó cirugía urgente por insuficiente recuperación del flujo y en otro paciente (6,2%) fue necesario realizar una segunda maniobra de detorsión. No hubo complicaciones tras DM a corto/largo plazo, ningún caso de atrofia testicular. CONCLUSIONES: La DM ecoguiada y orquidopexia diferida es una opción terapéutica en pacientes con TT de corta evolución. Es necesario series más amplias y realizar estudios prospectivos para establecer su seguridad y eficacia.

[Peritoneal drainage as definitive treatment in necrotizing enterocolitis of preterm infants with low weight]. / Drenaje peritoneal como tratamiento definitivo en la enterocolitis necrotizante de prematuros de bajo peso.

OBJECTIVES: The management of advanced necrotizing enterocolitis (NEC) in preterm birth with low weight remains controversial. The aim of this study consists in the analysis of the results of treatment in these patients, as well as the evaluation of the role of peritoneal drainage as a definitive therapeutic option. METHODS: Observational and descriptive study of 31 patients under 1,500 g of weight with advanced NEC, whom have had surgery in our center in the last 15 years. They were classified in two groups: G1 (n = 21) <1,000 g and G2 (n = 10) 1,000-1,500 g. RESULTS: Average weight in G1 patients was 791.7 ± 137.5 g and 1,280.7 ± 207.9 g in G2 patients (p <0.01). Average gestational age was 26 ± 1 weeks in G1 patients and 30 ± 2 weeks in G2 patients (p <0.01). Mean time to the start of the advanced NEC was 9,4 ± 4.4 days in G1 patients and 16.7 ± 13.5 days in G2 patients (p = 0.031). In group G1, 95.2% of the patients were treated throughout peritoneal drainage, and 4,8% (n = 1) with laparotomy. In G2, 60% (n = 6) of the patients were treated throughout peritoneal drainage, and 40% (n = 4) with laparotomy (p = 0.027). The peritoneal drainage was a definitive treatment in 84.2% (16/20) of the G1 patients, with a survival rate of 56.3% (n = 9); G2 patients had a definitive treatment in 50% of the patients (3/6), with a survival rate of 66.7% (n = 2) (p = 0.261). In G1 patients, 50% (2/4) of the drains which required subsequently laparotomy, died 0% (0/3) in G2 patients. CONCLUSIONS: Peritoneal drainage is primarily a valid therapeutic option in extremely premature infants and can be used as definitive treatment.

OBJETIVO: El manejo de la enterocolitis necrotizante (ECN) avanzada en prematuros de bajo peso continúa siendo controvertido. El objetivo de este estudio es analizar los resultados del tratamiento en estos pacientes, así como valorar el papel del drenaje peritoneal como opción terapéutica definitiva. MATERIAL Y METODOS: Estudio observacional y descriptivo de 31 pacientes menores de 1.500 g de peso, intervenidos en nuestro centro, con ECN avanzada en los últimos 15 años. Se clasificaron en dos grupos en función del peso: G1 <1.000 g (n = 21) y G2 1.000-1.500 g (n = 10). RESULTADOS: El peso medio en los pacientes del G1 fue de 791,7 ± 137,5 g y de 1.280,7 ± 207,9 g en el G2 (p <0,01). La edad gestacional media de 26 ± 1 semanas en el G1 y de 30 ± 2 semanas en el G2 (p <0,01). El tiempo medio hasta el comienzo del cuadro de ECN avanzada fue de 9,4 ± 4,4 días en el G1 y de 16,7 ± 13,5 días en el G2 (p = 0,031). En el G1 el 95,2% (n = 20) de los pacientes se trataron mediante drenaje peritoneal y el 4,8% (n = 1) mediante laparotomía; en el G2 el 60% (n = 6) se trataron con drenaje peritoneal y el 40% (n = 4) mediante laparotomía (p = 0,027). El drenaje peritoneal fue el tratamiento definitivo en el 84,2% (16/20) del G1, con una supervivencia del 56,3% (n = 9); en el G2 el 50% (3/6), con una supervivencia del 66,7% (n = 2) (p = 0,261). En el G1 fallecieron el 50% (2/4) de pacientes que tras el drenaje precisaron posteriormente laparotomía, mientras que en el G2 no falleció ningún paciente (0/3). CONCLUSION: El drenaje peritoneal es una opción terapéutica válida fundamentalmente en prematuros extremos y puede ser empleado como tratamiento definitivo.

[Retrospective analysis of morbidity and mortality of intestinal atresias in newborns]. / Análisis retrospectivo de la morbilidad y mortalidad de las atresias intestinales diagnosticadas en el periodo neonatal.

OBJECTIVE: Intestinal atresia (IA) is the most common obstructive congenital malformation in the gastrointestinal tract. The aim is to describe the morbidity and mortality of AI in our series. METHODS: Retrospective study in infants with AI who underwent surgery in our hospital in the past 15 years. Descriptive analysis was performed by collecting clinical and epidemiological variables. Qualitative and quantitative statistical analysis were performed. RESULTS: A total of 32 patients, 40.6% (13) women and 59.4% (19) males, maternal age 31 ± 5 years. Prenatal care in 96.8% (30) and prenatal diagnosis in 68.8% (22). Gestational age 35 ± 3 (SG 25-41), birth weight 2,506 ± 516 g (920-3,470 g). 53% (17/32) were localized in duodenum (65% extrinsic, 35% type I); 37.5% (12/32) jejunoileal (16.6% type I, 25% type II, 16.6% type IIIa, 16.6% type IIIb and 25% type IV); 6.5% (2/32) were colonic and 3% (1/32) pyloric. In 65.6% (21/32) it was associated with other congenital malformation. 81.3% (26) were operated within the first 48 hours of life. 15.6% (5/32) required enterostomy. 21.8% (7/32) had complications requiring reoperation in 71% (5/7) with 1 case of short bowel syndrome. Median time to enteral nutrition onset was 10 days (IQR 7-15), higher in patients with ileal atresia. Hospital stay was 33 days (interquartile range 23-66 days) and overall mortality of 9.3%. CONCLUSION: In our series the congenital malformations associated with intestinal atresia were determinant in the prognosis and mortality of these patients.

OBJETIVOS: La atresia intestinal es la malformación congénita obstructiva del tubo digestivo más frecuente. Nuestro objetivo es describir la morbilidad y mortalidad de las atresias intestinales en nuestro medio. MATERIAL Y METODOS: Estudio retrospectivo de neonatos con atresia intestinal intervenidos en nuestro centro en los últimos 15 años. Se realiza un análisis descriptivo de variables clínicas y epidemiológicas. RESULTADOS: Un total de 32 pacientes, 40,6% (13) mujeres y 59,4% (19) varones, edad materna de 31 ± 5 años, controles prenatales en el 96,8% (30) y diagnóstico prenatal en 68,8% (22). Edad gestacional de 35 ± 3 (25-41 SG), peso al nacer 2.506 ± 516 g (920-3.470 g). El 53% (17/32) de localización duodenal (65% extrínseca y 35% tipo I); el 37,5% (12/32) yeyunoileal (16,6% tipo I, 25% tipo II, 16,6% tipo IIIa, 16,6% tipo IIIb y 25% tipo IV); el 6,5% (2/32) colónica y 3% (1/32) pilórica. El 65,6% (21/32) asociaba otra malformación congénita. El 81,3% (26) fueron intervenidos en las primeras 48 horas de vida, precisando derivación intestinal un 15,6% (5/32). El 21,8% (7/32) presentaron complicaciones, de los cuales el 71% (5/7) requirieron reintervención, con un caso de intestino corto. El tiempo medio de inicio de nutrición enteral fue 10 días (RIQ 7-15), mayor en los pacientes con atresia ileal; la estancia hospitalaria fue de 33 días (RIQ 23-66 días) y la mortalidad general, del 9,3%. CONCLUSIONES: Las malformaciones congénitas asociadas en pacientes con atresia intestinal son un factor determinante en el pronóstico y mortalidad de los mismos.

[Management and description of neonatal tumours in a surgical oncology unit]. / Tumores neonatales: experiencia en una Unidad de Cirugía Oncológica.

AIM: Neonatal tumours represents less than 2% of all childhood cancers. The biological behaviour of this tumours will differ in older children. The tumours's biological differences and the immature physiological characteristics of newborns represent a great therapeutically challenge making newborns vulnerable. The aim of this study is to describe the clinical characteristics, associated malformations, diagnostic methods, treatment and the outcomes of neonatal tumours. METHODS: Retrospective review of patients ≤ 28 days-old with diagnosis of neonatal tumour between 2000-2016. Statistical analysis of clinical characteristics, histology, diagnostic methods, treatment and morbimortality. RESULTS: A total of 26 tumours were diagnosed in newborns with a mean age of 4.85 ± 8.9 days and 69.2% of boys. Prenatal diagnosis was achieved in 38.5% (n = 10) and 38.5% (n = 10) in the first week of age. Associated malformations were found in 30.6% (n = 8). The most frequent tumours were hepatic hemangioma 23.1% (n = 6), neuroblastoma 15.4% (n = 4) and sacrococcygeal teratoma 11.5% (n = 3). Medical treatment was indicated in 7.7% (n = 5), surgical 57.7% (n = 15) and observation 30.8% (n = 7). Global mortality was 19.23% (n = 5) of which 42.9% (n = 3/7) were perioperatively. CONCLUSIONS: The management of neonatal tumours require a multidisciplinary approach to minimize the consequences and assure the best outcome. Global mortality is low and depends primarily of the physiologic and association of other malformations of the newborn.

OBJETIVO: Los tumores neonatales representan menos del 2% de los tumores pediátricos, sin embargo, el comportamiento biológico difiere de los desarrollados en otros grupos de edad. Estas características, junto a la inmadurez neonatal, dificultan el tratamiento, convirtiéndolos en un grupo muy vulnerable. El objetivo de este estudio es describir las características clínicas, anomalías asociadas, diagnóstico y repercusión del tratamiento de los tumores neonatales. MATERIAL: Estudio retrospectivo de pacientes ≤ 28 días diagnosticados de tumor neonatal entre 2000-2016. Se realizó análisis estadístico de las principales características clínicas, histológicas, métodos diagnósticos, tratamientos establecidos y morbimortalidad. RESULTADOS: Se diagnosticaron 26 recién nacidos con tumores. El 69,2% varones, con edad media al diagnóstico de 4,85 ± 8,9 días. El diagnóstico fue prenatal en 38,5% (n = 10) y 38,5% (n = 10) en la primera semana de vida. El 30,6% (n = 8) asoció otra malformación. Los tumores más frecuentes fueron los hemangiomas hepáticos, 23,1% (n = 6), neuroblastoma, 15,4% (n = 4) y teratoma sacrococcígeo, 11,5% (n = 3). Se realizó tratamiento médico en 7,7% (n = 5), quirúrgico en 57,7% (n = 15) y conservador en 30,8% (n = 7). La mortalidad global fue del 19,23% (n = 5), de los cuales 42,9% (n = 3/7) casos ocurrieron durante el periodo perioperatorio. CONCLUSIONES: El manejo de los tumores neonatales requiere un equipo multidisciplinar para minimizar las secuelas y garantizar el mejor resultado. El manejo conservador es una opción terapéutica válida en determinados tipos de tumores. La mortalidad global es baja y depende principalmente de las características fisiológicas del neonato y de sus malformaciones asociadas.

[Clinical and immunohistochemical correlation of balanitis xerotica obliterans]. / Correlación clínica e inmunohistoquímica de la balanitis xerotica obliterans.

AIM: Balanitis xerotica obliterans (BXO) is a disease of the skin and mucosa of male genitals of unknown etiology that may affect children of any age. It has a low incidence (9-19%) and in adults is considered a potential premalignant lesion. The aim of our study is to establish the incidence of BXO in our center and to determine its correlation between the clinical and immunohistochemical (IHC) findings. METHODS: Prospective cohort including all children < 14 years with foreskin pathology that required a circumcision between 2014-2016. Statistical analysis of the clinical characteristics, histological and IHC findings searching for inflammatory response, premalignant lesions and microbiological findings. RESULTS: A total of 176 boys with phimosis had circumcision with a mean age of 7 ± 3 years (Range 2-14). Presurgical diagnosis of BXO was suspected in 28.4% (n= 50) whereas the AP confirmed a total of 29.5% (n= 53) with a very good interobserver concordance (kappa= 0.81: p< 0.01). Previous treatment with corticoids in BXO was found in 63.5% (n= 33/52). Meatal stenosis was found in 7.69% (n= 4/52) requiring meatal/urethral dilations. Patients with BXO had a T-Lymphocytes CD3+ mediated inflammatory response with a positive correlation between tumor suppressing protein (p53) expression and chronic inflammation. CONCLUSIONS: BXO is a chronic inflammatory disease mediated by T-lymphocytes with an incidence greater than previously reported. Surgeons' criterion has a very good concordance with the AP findings. The elevation of p53 in children with BXO may indicate a plausible malignant potential that may require a surgical treatment (circumcision) and an adequate follow-up.

OBJETIVO: La balanitis xerotica obliterans (BXO) es una enfermedad de etiología incierta, que afecta a piel y mucosa de genitales masculinos de cualquier edad. La incidencia en niños es baja (9-19%) y en adultos se considera una lesión premaligna. El objetivo de este estudio es establecer la incidencia de BXO en nuestro centro y determinar la correlación entre las características clínicas y los hallazgos inmunohistoquímicos (IHQ). METODOS: Cohorte prospectiva de niños ≤14 años con fimosis circuncidados entre 2014-2016. Análisis estadístico de las características clínicas e histológicas e IHQ para valorar la respuesta inflamatoria, presencia de lesiones premalignas y asociaciones microbiológicas. RESULTADOS: Se incluyeron 176 pacientes circuncidados con una edad media de 7 ± 3 años (rango 2-14 años). La sospecha clínica de BXO, 28,4% (n= 50), se confirmó mediante anatomía patológica en 29,5% (n= 52) con muy buena fuerza de concordancia interobservador (kappa= 0,81: p< 0,01). El 63,5% (n= 33/52) recibieron corticoterapia como tratamiento inicial. El 7,69% (4/52) presentaron estenosis meatal requiriendo dilataciones meatales/uretrales. Los casos de BXO presentaron una respuesta mediada por linfocitos-T: CD3+ (p< 0,01) y correlación positiva con la sobreexpresión de proteína supresora de tumores (p53) (p< 0,01). CONCLUSIONES: BXO es una enfermedad inflamatoria crónica mediada por linfocitos-T con una incidencia mayor a la reportada. La concordancia interobservador entre la sospecha de BXO y la confirmación histológica es muy buena. La elevación de p53 en los pacientes con BXO indica un posible potencial maligno que requiere tratamiento quirúrgico (circuncisión) y un seguimiento adecuado.

[Correlation between prenatal ultrasound and postnatal diagnosis of birth defects]. / Correlación entre la ecografía prenatal y el diagnóstico postnatal de las malformaciones congénitas.

OBJECTIVES: To assess the accuracy of prenatal ultrasound diagnosis and to analyze the protocol applied for congenital defects (CD) in our environment. METHODS: Descriptive study of prenatally diagnosed CD in our area between 2004-2013. Includes: total births, fetal medicine referrals (number of consultations, ultrasound, invasive techniques) anatomical and chromosomal abnormalities, confirmed diagnoses, necropsies performed, false diagnoses, absence of prenatal diagnoses, and number and reasons for abortions (VIEs). RESULTS: Mean annual births were 3,646 ± 1,299, with a mean prenatal ultrasound of 2,144 ± 307 and 512 ± 74 invasive techniques per year. The annual average of prenatal chromosomopathies diagnosed were 26 ± 8 and 140 ± 14 anatomical abnormalities, which represents a 36.44% from all of the prenatal ultrasound performed. These include: neurological, cardiac and nephron-urological anatomic anomalies. Pre and post-natal correlation was observed in 95.6% of the DCs detected. Most common causes of abortion were chromosomal abnormalities, heart and neurological diseases. CONCLUSIONS: Due to the variety of CD that cause VIEs, a highly specialized multidisciplinary approach is recommended to ensure optimal information for parents.

OBJETIVOS: Valorar la precisión del diagnóstico ecográfico prenatal y analizar el protocolo de actuación frente a un determinado defecto congénito (DC) en nuestro medio. MATERIAL Y METODOS: Estudio descriptivo de los DC diagnosticados prenatalmente en nuestra área sanitaria entre los años 2004-2013. Como variables del estudio se incluyeron el número de nacimientos totales, derivaciones a medicina fetal (número de consultas, ecografías, técnicas invasivas) anomalías anatómicas por sistemas, cromosomopatías, diagnósticos confirmados, necropsias realizadas, falsos diagnósticos, ausencia de diagnóstico prenatal, número y motivo de interrupciones voluntarias del embarazo (IVEs). RESULTADOS: Durante el período estudiado, la media de nacimientos anuales fue de 3.646 ± 1.299, con una media de 2.144 ± 307 ecografías prenatales y 512 ± 74 técnicas invasivas anuales. La media anual de diagnóstico prenatal fue de 26 ± 8 cromosomopatías y 140 ± 14 anomalías anatómicas que suponen un 36,44% del total de las ecografías prenatales realizadas. Entre estas últimas se observaron malformaciones del sistema urinario, cardíacas y neurológicas, entre otras. Se observó correlación pre y postnatal en el 95,6% de los DC detectados. Las causas de interrupción del embarazo más frecuentes fueron las cromosomopatías, seguidas de las malformaciones congénitas (MC) cardíacas y neurológicas. CONCLUSIONES: Debido a la variedad de DC que originan IVE, es recomendable un abordaje multidisciplinar altamente especializado que garantice una información óptima a los padres.

[An unexpected complication: glans ischemia after circumcision. Review of the literature]. / Isquemia postcircuncisión: una complicación inesperada. Revisión de la literatura.

INTRODUCTION: Circumcision is a frequent and common surgical procedure in children; nevertheless it is not completely hassle-free. Post circumcision ischemic complications are even rare and they are generally due to administration of local vasoconstrictor anesthetics. There are few cases reported in the literature. We report the management and treatment of post- circumcision penile ischemia (PCI). CASE REPORT: A 10 years old patient who underwent circumcision and a dorsal penile nerve block DPNB presents signs of penile ischemia two hours after surgery without any other symptoms. Ultrasonography shows weak flow of the penile artery, with progressive worsening. 24 hours later we start treatment with pentoxifylline (PTX) that is maintained for 6 days, topical testosterone and a caudal blocking (for 48 hours). The patient evolved favorably within a few hours and there was complete resolution in 6 days. DISCUSSION: We analyze 9 cases of pediatric patients which were described in the literature. 7 cases (77.7 %) received DPNB. The PCI is an unusual complication of circumcision, and DPNB seems to be the most frequent cause. Several therapeutic options are available for its management, but none is protocolised.

INTRODUCCION: La circuncisión, aunque es el procedimiento quirúrgico más común en niños, no está totalmente libre de complicaciones. Las complicaciones isquémicas post-circuncisión, son muy raras, y generalmente debidas a la administración de anestésicos locales vasoconstrictores. Se presenta el manejo y tratamiento con éxito de una isquemia peneana post-circuncisión (IPC) en un niño y se realiza una revisión de los casos descritos en la literatura. CASO CLINICO: Paciente de 10 años de edad sometido a circuncisión y bloqueo del nervio dorsal peneano (BNDP), que presenta a los 2 horas de la intervención, signos de isquemia peneana, sin otra sintomatología. La ecografía objetiva flujo débil de la arteria peneana, con empeoramiento progresivo. A las 24 horas, se inicia tratamiento con pentoxifilina (PTX) durante 6 días, testosterona tópica y un bloqueo caudal que se mantuvo durante 48 horas. Se observa mejoría de la isquemia a las pocas horas de instaurado el tratamiento y resolución total a los 6 días. DISCUSION: Existen 9 casos de pacientes con edad pediátrica de IPC descritos en la literatura en los últimos 10 años, 7 de los cuales (77,7%) recibieron BNDP. La IPC es una complicación inusual y el BNDP parece ser la causa más frecuente. Se dispone de diferentes opciones terapéuticas para el manejo de la IPC, pero ninguna protocolizada.

[Conservative or early surgical management of appendiceal mass. Does it affect the appearance of complications?] / Tratamiento quirúrgico o conservador del plastrón apendicular. ¿Influye en la aparición de complicaciones?

OBJECTIVES: Currently the management of appendicular mass remains controversial. Many authors advocate conservative management followed by delayed appendectomy, whereas others favour inmediate appendectomy. The aim of our study is to compare both treatments. METHODS: A descriptive and observational study over 46 patients treated for appendiceal mass at our center in the last ten years was performed. Patients were categorized as group 1, early surgical intervention (54.3%) and group 2, conservative management and interval appendectomy (45.7%), with a mean interval of 5.3 ± 1.5 months. RESULTS: Mean age was 9.2 ± 3.8 years in group 1 and 3.7 ± 3 years in group 2 (p<0.001). Median delay between the first symptoms and diagnosis was 4 ± 2.2 days in group 1 and 7.9 ± 4.2 days in group 2 (p<0.001). Antibiotics were administered before diagnosis in 24% of patients in group 1 and 42.9% in group 2 (p = 0.297). Ultrasound was performed in all patients, while 19.6% of patients requiered TAC for definitive diagnosis. Median hospital stay was 7.9 ± 2.9 days in group 1 and 8.3 ± 2.2 days in group 2 (p = 0.441). Complicactions were found in 64% of patients (group 1) and 23% of patients (group 2) (p = 0.015). Three patients from group 2 requiered readmission because of recurrent abdominal pain, but just one requiered early surgery. CONCLUSION: Conservative management of appendicular mass has a lower complication rate compared to the initial surgical management.

OBJETIVO: Actualmente el manejo del plastrón apendicular sigue siendo controvertido. Muchos autores defienden el tratamiento conservador y posterior apendicectomía programada, frente a otros que defienden la intervención quirúrgica en fase aguda. Nuestro objetivo es comparar ambos tratamientos. MATERIAL Y METODOS: Estudio observacional descriptivo de 46 pacientes tratados por presentar plastrón apendicular en nuestro centro en los últimos diez años. El 54,3% de los pacientes (n = 25) (G1) fueron tratados quirúrgicamente en la presentación del cuadro agudo, mientras que el 45,7% (n = 21) (G2) se trataron de forma conservadora con posterior apendicectomía, con un intervalo medio de 5,3 ± 1,5 meses. RESULTADOS: La edad media de presentación fue de 9,2 ± 3,8 años en el G1 y de 3,7 ± 3 en el G2 (p<0,001). El tiempo medio hasta el diagnóstico fue de 4 ± 2,2 días en el G1 y de 7,9 ± 4,2 en el G2 (p<0,001). El 24% de los pacientes habían recibido tratamiento antibiótico previo al diagnóstico en el G1 y el 42.9% en el G2 (p = 0,297). La TAC fue necesaria para el diagnóstico en el 19.6% del total, en el resto, la ecografía fue suficiente. La estancia hospitalaria media fue de 7,9 ± 2,9 días en el G1, frente a 8,3 ± 2,2 días en el G2 (p = 0,441). El porcentaje de complicaciones en el G1 fue del 64% frente al 23,8% en el G2 (p = 0,015). Tres pacientes del G2 reingresaron de urgencias por dolor abdominal, precisando uno de ellos cirugía antes de la fecha programada. CONCLUSIONES: El manejo conservador del plastrón apendicular presenta una menor tasa de complicaciones respecto al manejo quirúrgico inicial.

[Implementation of a Plan of Patient Safety in Service of Pediatric Surgery. First results]. / Implementación de un Plan de Seguridad del Paciente en un Servicio de Cirugía Pediátrica. Primeros resultados.

OBJECTIVES: In 2014 our department starts to apply the PatientSafety Strategic in Pediatric Surgery. Our aim is to describe the results obtained. METHODS: For the measurement of adverse events (AE) we used a modification of the Global Trigger Tool of the Institute for Healthcare Improvement. Population analysed: patients undergoing surgery with hospitalization. On a monthly basis, audits of the medical records of 12 patients discharged in the prior week of the assessment were performed. The evaluation team was composed by experienced pediatric surgeon, two staff nurses, and a doctor and nurse from the Quality Department. RESULTS: 95 clinical records and a total of 406 days of hospital stay were reviewed. 31 patients (32.6%) experienced one or more AE. Total AE: 43. The AE/1000 patients/day ratio: 105.9. The most common AE were: vomiting, itching and pain. 28 EA were considerd mild and 3 moderate in severity, according to the classification of the National Coordinating Council for Medication Error Reporting and Prevention. No EA were considered serious or critical. CONCLUSIONS: The analysis of prevalence through regular assessments of medical records is an easy method to obtain information about the frequency of occurrence, exact understanding of the AE types and the implementation of corrective measures. The main limitation of this method is that it can miss some of the serious EA and miss the records and analysis of sentinel events that may occur in the period between assessments.

OBJETIVOS: Durante el año 2014 se aplica el Plan de Seguridad del Paciente en un Servicio de Cirugía Pediátrica, elaborado previamente por nuestro Servicio. Se describen los resultados. MATERIAL Y METODOS: El método empleado para la medición de eventos adversos (EAs) es una modificación del Global Trigger Tool del Institute for Health care Improvement. Población analizada: pacientes intervenidos quirúrgicamente con hospitalización. Con una periodicidad mensual, se realizaron 12 auditorias de las historias clínicas correspondientes a los pacientes dados de alta en la semana anterior al día de la evaluación. El equipo evaluador estaba compuesto por: un cirujano pediátrico experto, dos enfermeras de planta más un médico y una enfermera del Servicio de Calidad. RESULTADOS: Se revisaron 95 historias y 406 días de estancia. 31 pacientes (32,6%) sufrieron uno o más eventos adversos. Total EAs: 43. Número EAs/1.000 pacientes/día: 105,9. Los 3 EA más frecuentes fueron: vómitos, prurito y dolor. 28 EAs fueron de gravedad leve y 3 moderada, según la clasificación del National Coordinating Council for Medication Error Reporting and Prevention. Ningún EA fue grave o crítico. CONCLUSIONES: La determinación de la prevalencia mediante evaluaciones regulares de historias clínicas es un método que permite obtener información de forma fácil sobre la frecuencia de aparición, el conocimiento exacto de los tipos de EAs y la aplicación de medidas correctoras. Este método tiene como limitación principal la posible falta de recogida EAs graves así como registro y análisis de eventos centinelas que pueden ocurrir en el periodo entre evaluaciones.

Comparing two vascular division techniques in laparoscopic varicocelectomy. A prospective study. / Comparación de dos técnicas de sección vascular en la varicocelectomía laparoscópica. Estudio prospectivo.

INTRODUCTION: Varicocele is the abnormal dilatation of the pampiniform plexus. It occurs in 15-20% of pre-adolescent/adult males. Varicocele diagnosis is important since it can induce testicular hypertrophy and fertility issues in adulthood. The objective of this study was to assess whether complications, including varicocele recurrence, depend on the vascular occlusion technique used -clipping + division vs. vascular sealer- in the laparoscopic Palomo technique used in our institution. MATERIALS AND METHODS: A longitudinal, prospective study was carried out from 2017 to 2021. Two therapeutic groups were created according to the vascular occlusion method used during laparoscopic varicocelectomy -clipping + division vs. vascular sealer. Patients were randomly allocated to the groups in a systematic alternating consecutive manner. Variables -age, varicocele grade according to the Dubin-Amelar classification, postoperative complications, follow-up, and varicocele recurrence- were analyzed according to the method employed. RESULTS: A total of 37 boys, with a mean age of 12 years (10-15 years) and a mean follow-up of 12 months, were studied. In 20 patients (54.1%), clipping + division was used, and in the remaining 17 (45.9%), the vascular sealer was employed. 24.3% had symptomatic Grade II varicocele and 75.7% had Grade III varicocele. 32.4% of the children had postoperative complications during follow-up. 29.7% of the patients had hydrocele following surgery -8 boys from the sealing group and 3 boys from the clipping group-, with 13.5% requiring re-intervention as a result of this. None of the patients had varicocele recurrence. CONCLUSIONS: The laparoscopic Palomo technique is safe and effective, with good results in pediatric patients and few postoperative complications, regardless of the vascular occlusion device used. In our study, no statistically significant differences regarding the use of clipping or vascular sealer in this laparoscopic technique were found. However, further studies with a larger sample size are required to find potential differences.

INTRODUCCION: El varicocele es la dilatación anormal del plexo pampiniforme. Puede afectar al 15-20% de los varones preadolescentes-adultos. La importancia de su diagnóstico radica en que puede inducir hipotrofia testicular y problemas de fertilidad en la etapa adulta. El objetivo de este estudio es evaluar si existe mayor índice de complicaciones, incluyendo la recurrencia del varicocele, dependiendo de la técnica de oclusión vascular utilizada: clip y sección o sellador vascular, en la técnica de Palomo laparoscópico en nuestro centro. MATERIAL Y METODOS: Estudio longitudinal prospectivo que se realiza de 2017 a 2021. Se crean dos grupos terapéuticos según el método de oclusión vascular utilizada durante la varicocelectomía laparoscópica: clip y sección o sellador vascular. Los pacientes son incluidos en un grupo mediante asignación sistemática consecutiva alternante. Se realiza el análisis de las variables: edad, grado de varicocele según la clasificación de Dubin-Amelar, complicaciones postquirúrgicas, seguimiento y recurrencia del varicocele, según el método empleado. RESULTADOS: Se intervinieron un total de 37 niños, con edad media de 12 años (10-15 años) y una media de seguimiento de 12 meses. En 20 pacientes (54,1%), se utilizó clip y sección, y en los 17 restantes (45,9%), sellador vascular. El 24,3% presentaba varicocele Grado II sintomático y el 75,7%, Grado III. El 32,4% de los niños presentó alguna complicación postquirúrgica durante el seguimiento. El 29,7% de los pacientes presentó hidrocele tras la intervención, perteneciendo 8 niños al grupo de sellado y 3 niños al de clipaje. El 13,5% de estos precisó reintervención por este motivo. Ningún paciente presentó recurrencia del varicocele. CONCLUSIONES: La técnica de Palomo laparoscópica es una técnica segura y efectiva que presenta buenos resultados en pacientes pediátricos, ya que presenta pocas complicaciones postquirúrgicas, independientemente del dispositivo de oclusión vascular que se utilice. En nuestro estudio, no se ha demostrado que existan diferencias estadísticamente significativas en cuanto al uso de clip o sellador vascular en esta técnica laparoscópica. No obstante, es preciso realizar más estudios con mayor tamaño muestral para hallar posibles diferencias.

[Implementation of "fast-track" treatment in paediatric complicated appendicitis]. / Aplicación de un modelo terapéuticofast-track en la apendicitis aguda complicada del paciente pediátrico.

OBJECTIVE: Acute appendicitis is the most common emergency surgical pathology in childhood and there is no consensus on its management. Fast-track treatment, based on optimizing perioperative care has reduced morbidity and mortality of surgical pathologies, including simple acute appendicitis. The aim of our study was to assess the effects of a fast-track protocol in complicated acute appendicitis. METHODS: Ambispective cohort study. Historical unexposed cohort: children with complicated appendicitis and appendectomy in our hospital during 2008-2009. Exposed cohort: children operated in 2010-2011 and who performed protocol. The protocol treatment was done after a literature review, adapting the principles of fast-track to a potentially severe urgent disease: early mobilization, limited drainage-tubes and short antibiotic regimens Taking hospital stay as the resulting variable, the calculated sample size for alpha = 0.05 and power = 90% was 54, being X1 = 7 +/- 3DS and X2=5. RESULTS: We included 151 patients, historical cohort 81 and current cohort 70, which excluded 31 children who did not meet protocol because of surgeon choice. Both groups showed homogeneity due to the absence of differences in sex, age, weight, type of appendicitis (gangrenous, perforated, generalized peritonitis) or surgical approach. The average stay decreased 2.71 days (p <0.001) due to the protocol, without any complication increase (abscess, postoperative ileus, readmission). CONCLUSIONS: Complicated appendicitis in children is common and potentially serious, and optimization of treatment should be a primary goal of our practice. Application of a fast-track protocol can provide clinical and economic benefits, although this requires an appropriate multidisciplinary management.

[Congenital solitary infantile myofibroma: report of two cases]. / Miofibroma infantil solitario congénito. Presentación de dos casos.

UNLABELLED: The infantile myofibromatosis is a rare pathology usually affecting children under 2 years. More than half are congenital, located in head and neck in a 30% of the cases. Myofibroma is a benign mesenchymal tumor that appear an isolated lesion or multiple, with or without visceral involvement. Case 1: A newborn girl that presents lump in scalp suspected of encefalocele. Ultrasound and RM: solid and heterogeneous mass 4 x 2 cm with increased peripheral vascularisation. Case 2: A 7-month-old baby boy with lump in right occipital zone detected at 4 months. Ultrasound and RM: injury 1 x 1.5 cm in head esplenio muscle suggestive of hemangioma. RESULTS: After surgical total resection, the histological study and immunohistochemical identified the lesion as myofibroma. The evaluation of disease dissemination was normal and the recovery of the patients was favorable. The differential diagnosis of myofibroma must be carried out with other mesenchymal tumors and with non neoplastic injuries characteristics of the region affects. The visceral location and multiple forms worsen the prognosis, so is important do an exhaustive study. Treatment is conservative surgery, but if there is no risk to the child, the possibility of spontaneous regression makes the abstention therapeutic a correct alternative.

Conservative parenchymal surgery in testicular tumors. / Cirugía conservadora de parénquima en tumores testiculares.

OBJECTIVES: Orchiectomy is the most widely used surgical technique in testicular tumors (TT). However, according to tumor size, tumor markers, and histology, tumorectomy can be considered as the technique of choice, since these tumors are mostly benign. We present our experience with conservative surgery. MATERIAL AND METHODS: A retrospective study of 21 TT cases in 19 patients under 14 years of age treated in our healthcare facility from 1998 to 2018 was carried out. The following variables were analyzed: age, laterality, histological type, evolution, presence or absence of recurrence, and ultrasound and analytical follow-up. The therapeutic attitude used was reviewed while assessing the possibility of testicular preservation in selected patients. RESULTS: Conservative surgery was performed in 9 TT cases in 7 patients (2 bilateral cases). Mean age was 6 years (0-13 years). 86% of cases started as an asymptomatic scrotal mass. No significant differences were found in terms of laterality. Tumor markers were negative before and after surgery, except in an infant with high alpha-fetoprotein, which was normalized in the postoperative period. The histological study diagnosed 7 stromal TTs (three Leydig cell stromal TTs, one bilateral Sertoli cell stromal TT, one hamartoma, and one fibroma) and 2 germ cell TTs (bilateral epidermoid cyst). Evolution was favorable in all cases, without clinical or ultrasound recurrence. CONCLUSIONS: Conservative surgery of the testicular parenchyma using tumorectomy can be the first therapeutic option in benign tumors and in selected patients with bilateral tumor, since it allows future hormonal and reproductive function to be preserved.

OBJETIVOS: La orquiectomía ha sido la técnica quirúrgica clásicamente más empleada en tumores testiculares (TT). Sin embargo, en función del tamaño del tumor, marcadores tumorales e histología, se puede considerar la tumorectomía como técnica de elección, ya que en su mayoría se trata de tumores benignos. Presentamos nuestra experiencia en cirugía conservadora. MATERIAL Y METODOS: Estudio retrospectivo de 21 casos de TT en 19 pacientes menores de 14 años, tratados en nuestro centro entre 1998-2018. Analizamos las siguientes variables: edad, lateralidad, tipo histológico, evolución, existencia o no de recidivas, seguimiento ecográfico y analítico. Revisamos la actitud terapéutica empleada, con énfasis en la posibilidad de preservación testicular en pacientes seleccionados. RESULTADOS: Se realizó cirugía conservadora en nueve casos de TT tratados que correspondían a siete pacientes (dos bilaterales). La edad media de presentación fue de seis años (0-13 años). El 86% de los casos debutaron como masa escrotal asintomática. No existieron diferencias significativas en cuanto a lateralidad. Los marcadores tumorales fueron negativos antes y después de la intervención, salvo en un lactante con alfafetoproteína elevada, normalizada en el posoperatorio. El estudio histológico diagnostica 7TT estromales (tres de células de Leydig y uno bilateral de células de Sertoli, un hamartoma y un fibroma) y 2TT de células germinales (quiste epidermoide bilateral). Evolución favorable en todos ellos, sin recidivas clínicas ni ecográficas. CONCLUSIONES: La cirugía conservadora del parénquima testicular, mediante tumorectomía, puede ser la primera opción terapéutica en tumores benignos y en pacientes seleccionados con tumores bilaterales, con el objetivo de preservar la función hormonal y reproductora futura.

[Acute abdomen secondary to appendiceal intussusception]. / Abdomen agudo secundario a invaginación apendicular.

Appendiceal intussusception is a rare condition that can occur at any age. Only a few cases have been reported, and most are found during surgery. The therapeutic approach is usually surgical, ranging from an appendectomy to a hemicolectomy, primarily for biopsy and to rule out possible malignancy. Three cases of children under 14 years who underwent surgery for acute abdominal pain located in the right iliac fossa are presented; one with preoperative diagnosis by ultrasound, and the other two with positive intraoperative findings of intussusception of the cecal appendix, with acute appendicitis being histologically confirmed.

[Surgical management of aplasia cutis congenita]. / Manejo quirúrgico de la aplasia cutis congénita.

INTRODUCTION: Aplasia cutis congenita (ACC) is a rare congenital malformation that commonly involves the scalp, but can affect pericranium, bone and dura mater. Complications are rare, but can be fatal, so early treatment must be achieved. The treatment remains controversial with no consensus between the conservative and surgical approach. The aim of this study is to describe our experience in the management of ACC. MATERIAL AND METHODS: Retrospective review of the medical records of all children up to 14 years diagnosed with ACC and treated between 2000 and 2013. RESULTS: There were a total of 22 cases of ACC with lesions ranging from 1cm (0.79 cm(2)) to 14cm (153.94 cm(2)). ACC of the scalp was found in 18 cases, with 3 in extremities and 1 in trunk. Conservative treatment was performed on 9 patients and 13 underwent surgical treatment (8 primary closures, 2 plasties, 2 skin grafts, and 1 skin flap). Two patients died due to complications of other diseases not related with the ACC. CONCLUSIONS: ACC is a rare disease that can be fatal. A complete initial assessment to establish early treatment is necessary to prevent this. Surgery should be considered as an initial therapeutic option in defects >4cm (>12.6 cm(2)) as it prevents the risk of fatal complications.

[Comparative study of different methods of pleural drainage in an experimental model of pneumothorax]. / Estudio comparativo de distintos métodos de drenaje pleural en un modelo experimental de neumotórax.

OBJECTIVE: To observe the usefulness of several procedures for draining pneumothorax in an animal model and to identify the best pleural drainage system with minimal impairment of respiratory function. METHOD: Thirty-four New Zealand white rabbits weighting 1687 +/- 78 g and aged a mean 59 days were randomly placed in groups as follows. Unilateral pneumothorax was induced in the first problem group (P1) rabbits (n = 10) by thoracostomy, with pleural drainage. In the second problem group (P2) of rabbits (n = 10), bilateral pneumothorax was similarly induced by thoracostomy with pleural drainage. The control groups underwent unilateral (C1; n = 7) and bilateral (C2; n = 7) thoracostomy and drainage. Every 7 minutes the chest tube was connected successfully in each animal to an underwater seal with a dead-space volume of 35.58 ml (neonatal Bülau unit) or to a 3,940 ml system (chest drainage unit) and to pleural aspirations of -5 and -20 cmH2O. We analyzed mortality, fluctuations of the hydrostatic column of the underwater seal, heart rate (HR), respiratory rate (RR), PaCO2, SaO2, pH and arterial blood gas measures. RESULTS: Intraoperative mortality was significantly higher (particularly in the P2 group) when connection was to a large volume system without aspiration. Recovery after pneumothorax was more satisfactory with aspiration of -5 and -20 cmH2O. CONCLUSIONS: The results suggest that a pleural drainage unit with a large dead space between the pleural cavity and the underwater seal is a frequent cause of respiratory failure or insufficiency. We believe that when an underwater seal without pleural suction is applied, the Bülau unit should be used with the smallest possible volume.

[Lymphangioma of the spermatic cord]. / Linfangioma de cordón espermático.

We report a new case of spermatic cord lymphangioma in a infant 2 years old. The initial diagnosis was funicular hydrocele. The treatment was the local excision of tumor and the diagnostic was histological. Postoperative course was excellent. Must be explored the transillumination of the mass which would have led us to think other the diagnosis different from that of the cord hydrocele before the operation since it would have given negative. During the operation, must the assured that the cystic anomaly is limited to spermatic cord, to evite recurrences in the postoperative course.

[Testicular teratoma and epididymal adrenal choristoma]. / Teratoma testicular y coristoma adrenal epididimario.

We report a case of mature testicular cystic teratoma in a 28-month old boy. Due to the characteristics of the palpation and its partial transillumination, it may be confused with a hydrocele. They emphasize on the rarity and benign nature of the peculiarities and refer to its prognosis, usually benign, when is diagnosed at about 2 years of age, providing that a very careful examination of the histological sections rules out the presence of anaplastic cells. A left inguinal orchiectomy was performed because it was not possible to establish a line of cleavage between the tumor and the normal tissue. The pathologic examination revealed a benign lesion. An adrenal choristoma in the caput epididymis was also observed. Postoperative course was satisfactory.

[Protocol for the treatment of hypertrophic cicatrix with silastic gel. First results]. / Protocolo para el tratamiento de cicatrices hipertróficas con gel de silastic. Primeros resultados.

Functional limitation and scarring use to be common sequelaes of a burns injury in children. We report our initial experience with silicone gel (silastic gel shetting) in the treatment of 15 children with hypertrophic scars, without success to other alternatives therapies. Improvements in texture, colour and height of the lesion were noted in all cases.