Testis-sparing surgery for testicular tumors in children: a 20 year single center experience and systematic review of the literature.

PURPOSE: Although surgical therapy for testicular tumors (TT) is often radical orchidectomy, tumor resection with preservation of healthy testicular parenchyma has been proposed. This study herein reports a 20 year single center experience applying testicular sparing surgery (TSS) as a primary operative strategy in pediatric patients. A systematic literature review summarizes the utility and outcomes of TSS in appropriately selected patients. METHODS: Pediatric patients with TT who underwent TSS between 1997 and 2018 were studied. TSS was indicated if patients presented evidence of adequately spared healthy testicular parenchyma on preoperative ultrasound and negative serum tumor markers. A systematic review of the literature was also performed. RESULTS: 12 cases met full inclusion criteria with 10 of 12 subjects in the prepubertal age group. Follow-up was 73 months (range 18-278 months). Only a single male patient (GSCCT) presented with early recurrence and orchidectomy was then performed. No cases of postoperative testicular atrophy were identified. Sexual maturation (Tanner stage) expected for age in each patient was documented. Review of the literature identified 34 published studies including 269 patients (94% prepubertal). Pathologic lesions here were mainly mature teratoma(s)-(62%) with a follow-up period of 4 years. Recurrent tumors were observed in only three patients (1.1%) notably two Leydig Cell Tumors and one Teratoma. Testicular atrophy reportedly occurred in only one single case (0.37%). DISCUSSION: TSS is a feasible alternative to radical orchidectomy in pediatric male patients with localized TT and negative tumor markers. Long term follow-up is essential to monitor testicular growth, puberty with sexual development and psychological male health.

Tratamiento mínimamente invasivo de una lesión de la vía biliar secundaria a un traumatismo abdominal cerrado: Caso clínico / Minimally invasive treatment of biliary tract injury secondary to closed abdominal trauma: Clinical case

Las lesiones hepáticas y de las vías biliares por causa traumática son poco usuales en la edad pediátrica. Del total de pacientes con trauma abdominal cerrado, menos del 9 % presentan lesión hepática, y la frecuencia varía entre el 2 % y el 3 % de la lesión de las vías biliares. Actualmente, el tratamiento recomendado para el trauma abdominal cerrado con lesión hepática sin repercusión hemodinámica es conservador; en caso de presentar lesión de la vía biliar intra- o extrahepática, los abordajes de preferencia son mínimamente invasivos, como la cirugía percutánea o endoscópica, y se utiliza la laparotomía en casos seleccionados. Se presenta el caso de un paciente con trauma abdominal cerrado y trauma hepático, inicialmente laparotomizado en 2 ocasiones por inestabilidad hemodinámica y hemoperitoneo; presentó un bilioma subdiafragmático y coleperitoneo, en el que se realizó un manejo mínimamente invasivo por drenaje percutáneo bajo control tomográfico.

Hepatic and biliary tract injuries due to traumatic causes are rare in pediatric patients. Of the total number of patients with closed abdominal trauma, less than 9 % have liver injury, and the frequency varies between 2 and 3 % of biliary tract lesions. Currently, the recommended treatment for closed abdominal trauma with liver injury without hemodynamic repercussion is conservative. In case of presenting intra or extrahepatic biliary tract lesion, the preferred approaches are minimally invasive, such as percutaneous or endoscopic surgery, using laparotomy in selected cases. We present the case of a patient with closed abdominal trauma and liver trauma, initially laparotomized on 2 occasions due to hemodynamic instability and hemoperitoneum; presented a subdiaphragmatic and coleperitoneal bilioma; it was performed minimally invasive percutaneous drainage under tomographic control.

[Minimally invasive treatment of biliary tract injury secondary to closed abdominal trauma: Clinical case]. / Tratamiento mínimamente invasivo de una lesión de la vía biliar secundaria a un traumatismo abdominal cerrado: Caso clínico.

Hepatic and biliary tract injuries due to traumatic causes are rare in pediatric patients. Of the total number of patients with closed abdominal trauma, less than 9 % have liver injury, and the frequency varies between 2 and 3 % of biliary tract lesions. Currently, the recommended treatment for closed abdominal trauma with liver injury without hemodynamic repercussion is conservative. In case of presenting intra or extrahepatic biliary tract lesion, the preferred approaches are minimally invasive, such as percutaneous or endoscopic surgery, using laparotomy in selected cases. We present the case of a patient with closed abdominal trauma and liver trauma, initially laparotomized on 2 occasions due to hemodynamic instability and hemoperitoneum; presented a subdiaphragmatic and coleperitoneal bilioma; it was performed minimally invasive percutaneous drainage under tomographic control.

Las lesiones hepáticas y de las vías biliares por causa traumática son poco usuales en la edad pediátrica. Del total de pacientes con trauma abdominal cerrado, menos del 9 % presentan lesión hepática, y la frecuencia varía entre el 2 % y el 3 % de la lesión de las vías biliares. Actualmente, el tratamiento recomendado para el trauma abdominal cerrado con lesión hepática sin repercusión hemodinámica es conservador; en caso de presentar lesión de la vía biliar intra- o extrahepática, los abordajes de preferencia son mínimamente invasivos, como la cirugía percutánea o endoscópica, y se utiliza la laparotomía en casos seleccionados. Se presenta el caso de un paciente con trauma abdominal cerrado y trauma hepático, inicialmente laparotomizado en 2 ocasiones por inestabilidad hemodinámica y hemoperitoneo; presentó un bilioma subdiafragmático y coleperitoneo, en el que se realizó un manejo mínimamente invasivo por drenaje percutáneo bajo control tomográfico.

Ascitis fetal como forma de presentación de agenesia de la vena cava inferior / Fetal ascites as clinical presentation of inferior vena cava agenesis

La vena cava inferior (VCI) está constituida por tres segmentos de diferente origen embriológico. De su mala fusión, surge un amplio espectro de anomalías. La prevalencia de anomalías de la VCI es de 0,07-8,7% de la población. Generalmente, se diagnostica como hallazgo incidental en la vida adulta. Representa el 5-9,5% de las trombosis venosas profundas idiopáticas en menores de 30 años sin factores de riesgo asociados. Se presenta a una recién nacida a término con diagnóstico prenatal de ascitis en la semana 20 de gestación. Se diagnosticó, mediante angiotomografía abdominal, la agenesia de VCI. El tratamiento de pacientes con agenesia de la VCI se basa en el manejo de las complicaciones. Debido al mayor riesgo que presentan de sufrir un evento trombótico, se debe considerar la profilaxis antitrombótica a largo plazo. Se recomienda iniciar profilaxis anticoagulante en la pubertad.

Inferior Vena Cava (IVC) is composed of three segments from different embryological origin. Its lack of fusion originates a wide spectrum of anomalies of the IVC. These malformations are present in 0.07-8.7% of the population. It is generally diagnosed as an incidental finding in adult life. It represents between 5 and 9.5% of idiopathic deep vein thrombosis in patients younger than 30 years old without associated risk factors. We present a case of a term newborn with prenatal diagnosis of ascites during the 20th week of gestation. IVC Agenesis was diagnosed with the use of abdominal angiotomography. The treatment of patients with IVC Agenesis is based on the management of its complications. Due to the increased thrombotic risk of these patients, we should consider lifelong anticoagulation. We suggest initiating it during puberty.

[Fetal ascites as clinical presentation of inferior vena cava agenesis]. / Ascitis fetal como forma de presentación de agenesia de la vena cava inferior.

Inferior Vena Cava (IVC) is composed of three segments from different embryological origin. Its lack of fusion originates a wide spectrum of anomalies of the IVC. These malformations are present in 0.07-8.7% of the population. It is generally diagnosed as an incidental finding in adult life. It represents between 5 and 9.5% of idiopathic deep vein thrombosis in patients younger than 30 years old without associated risk factors. We present a case of a term newborn with prenatal diagnosis of ascites during the 20th week of gestation. IVC Agenesis was diagnosed with the use of abdominal angiotomography. The treatment of patients with IVC Agenesis is based on the management of its complications. Due to the increased thrombotic risk of these patients, we should consider lifelong anticoagulation. We suggest initiating it during puberty.

La vena cava inferior (VCI) está constituida por tres segmentos de diferente origen embriológico. De su mala fusión, surge un amplio espectro de anomalías. La prevalencia de anomalías de la VCI es de 0,07-8,7% de la población. Generalmente, se diagnostica como hallazgo incidental en la vida adulta. Representa el 5-9,5% de las trombosis venosas profundas idiopáticas en menores de 30 años sin factores de riesgo asociados. Se presenta a una recién nacida a término con diagnóstico prenatal de ascitis en la semana 20 de gestación. Se diagnosticó, mediante angiotomografía abdominal, la agenesia de VCI. El tratamiento de pacientes con agenesia de la VCI se basa en el manejo de las complicaciones. Debido al mayor riesgo que presentan de sufrir un evento trombótico, se debe considerar la profilaxis antitrombótica a largo plazo. Se recomienda iniciar profilaxis anticoagulante en la pubertad.

Ruptura diafragmatica postraumatica en pediatria: A proposito de un caso / Post traumatic diaphragmatic rupture in children: Case report

La ruptura diafragmática es una entidad relativamente infrecuente en pediatría que se puede presentar como consecuencia de un traumatismo de alto impacto. Solo entre el 25% y el 50% de los casos es detectado en la evaluación inicial del paciente, lo que aumenta el riesgo de complicaciones. En este trabajo, se presenta el caso de una paciente asintomática, de 8 años de edad, que, tras un accidente vehicular y la evaluación inicial en otro centro, fue derivada a nuestra Institución para el control evolutivo. A las 36 horas del ingreso, presentó hipoventilación pulmonar izquierda. La tomografía demostró un ascenso intratorácico del ángulo esplénico del colon y asas de intestino delgado. Se efectuó la exploración y el tratamiento quirúrgico. Los controles radiográficos diferidos no mostraron signos de recidiva.

Diaphragmatic rupture is a relatively uncommon entity in pediatrics that can occur as a result of a high-impact trauma. Only between 25 and 50% of the cases are detected in the initial evaluation of the patient, which increases the risk of complications. This paper presents the case of an asymptomatic 8-year-old patient who was referred to our institution after a vehicular accident. A day and a half after admission, a left pulmonary hypoventilation was detected. Computed tomography scan showed intrathoracic elevation of the splenic angle of the colon and the small bowel. Surgical exploration and treatment were performed. Deferred radiographic controls showed no signs of relapse.

[Post traumatic diaphragmatic rupture in children: Case report]. / Ruptura diafragmatica postraumatica en pediatria: A proposito de un caso.

Diaphragmatic rupture is a relatively uncommon entity in pediatrics that can occur as a result of a high-impact trauma. Only between 25 and 50% of the cases are detected in the initial evaluation of the patient, which increases the risk of complications. This paper presents the case of an asymptomatic 8-year-old patient who was referred to our institution after a vehicular accident. A day and a half after admission, a left pulmonary hypoventilation was detected. Computed tomography scan showed intrathoracic elevation of the splenic angle of the colon and the small bowel. Surgical exploration and treatment were performed. Deferred radiographic controls showed no signs of relapse.

La ruptura diafragmática es una entidad relativamente infrecuente en pediatría que se puede presentar como consecuencia de un traumatismo de alto impacto. Solo entre el 25% y el 50% de los casos es detectado en la evaluación inicial del paciente, lo que aumenta el riesgo de complicaciones. En este trabajo, se presenta el caso de una paciente asintomática, de 8 años de edad, que, tras un accidente vehicular y la evaluación inicial en otro centro, fue derivada a nuestra Institución para el control evolutivo. A las 36 horas del ingreso, presentó hipoventilación pulmonar izquierda. La tomografía demostró un ascenso intratorácico del ángulo esplénico del colon y asas de intestino delgado. Se efectuó la exploración y el tratamiento quirúrgico. Los controles radiográficos diferidos no mostraron signos de recidiva.

Pediatric thoracoscopic training in an experimental pleural empyema rabbit model.

BACKGROUND: Thoracoscopy has proved to be effective in the treatment of stage 2 (fibrinopurulent) empyema, but this technique requires different abilities from those needed in open surgery. The aim of this study is to evaluate the usefulness of an experimental empyema in rabbits as a thoracoscopic training model. MATERIALS AND METHODS: Twenty New Zealand rabbits were anesthetized with acepromazine and ketamine. A Veress needle was introduced into the pleural space, and a turpentine and saline solution were injected. Twenty-four hours later, 1016 colony-forming units of Escherichia coli and 1 g of agar in 1 mL of saline solution were injected. The rabbits were operated on 96 hours after bacterial injection by 30 pediatric surgeons attending a hands-on pediatric laparoscopic course. The contralateral lung was selectively intubated and three ports were placed to perform an empyema debridement. The surgeons evaluated the model using subjective criteria from an evaluation form. RESULTS: One animal died (5%) and 2 (10%) did not form empyema. The other 17 rabbits (85%) presented with a fibrinopurulent empyema. All usual surgical steps could be performed. As regards the surgeons' opinion of the model, 23 (76.7%) considered it very good while 7 (23.3%) thought it was good. Twenty-three (76.7%) answered that the empyema stage was correct for thoracoscopic treatment. CONCLUSION: As reflected by our experience and the survey completed by the 30 pediatric surgeons, this empyema model in rabbits is very useful for thoracoscopic training.