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Introduction: Wilms' tumor (WT) is the most frequent renal tumor in childhood. Therapeutic management progression has increased survival rates, and as a result, long-term adverse effects., Materials and Methods: A descriptive retrospective study of a case series from 1977 to 2023 was carried out. The characteristics of the treatments received and the adverse effects listed on medical records were analyzed via phone surveys., Results: 50 patients (25 boys-25 girls) with a mean age of 3.6 years (3 months-11 years) at diagnosis were included. Most of them (94%) were treated according to the protocol established by the European standards of pediatric oncology, which are characterized by the use of neoadjuvant chemotherapy. In one patient, the American treatment scheme was followed. The most common drugs used were vincristine and actinomycin D (78%). Only 12 patients (28%) received anthracyclines. Unilateral nephrectomy was the most frequent surgical technique (84%). Renal disorders were the most common (46%). However, the occurrence of second neoplasias (9%) and reproductive disorders (8% between boys and girls) had a greater impact on patients' quality of life. Multiple - cardiac (23%), endocrine (26%), and pulmonary (15%) - disorders associated with the treatments received were reported., Conclusions: WT treatment has an impact on health. Adequate and rigorous surgery, close follow-up, and limiting chemotherapy doses and radiation exposure can minimize long-term sequels.

In the present work, we present an overview of the contents of the communications presented at the Second National Congress of Paediatrics, held in San Sebastian in 1923, on the occasion of the 100th year anniversary. The problem of infant mortality stands out as a common thread, which in those years was very high in Spain and was a concern of politicians, intellectuals and the medical profession. It is worth noting that some of the proposals and concerns of the paediatricians who attended that congress continue to be relevant today., (Copyright © 2023 Asociación Española de Pediatría. Published by Elsevier España, S.L.U. All rights reserved.)

Objetive: To evaluate long-term renal function and morbimortality in non-syndromic Wilms tumor (WT) survivors., Methods: Retrospective study about WT patients treated in 1993-2017, according to SIOP protocols. Mortality, glomerular filtration rate (GFR), prevalence of hypertension and requirement of dialysis and renal transplant were evaluated. Chronic kidney disease (CKD) was defined as GFR <90 ml/min/1.73 m2., Results: Thirty-nine children were treated in the 25 analyzed years. Median time of follow-up was 6 years (0.5-21 years). 48% (19 patients) debuted with stage I or II. Four cases had high-grade histo-logy. Mortality rate was 10%. GFR data were found in 37 patients. Chronic kidney disease (grade I-II) turned up in 6 patients (16%). No patient required renal replacement therapy or renal transplant. 16% of patients developed CKD in both unilateral and bilateral WT, (p>0.05); OR 1.04 (IC 95% 0.09-10.9). Identical results were obtained comparing patients treated with or without radiotherapy (16%). Children with stage I-III had CKD in 11% vs. 40% of patients with stage IV (p=0.12); OR 5.3 (IC 95% 0.61-45). None of them presented hypertension in addition., Conclusions: In the current study the prevalence of CKD was low but not negligible, although no patients required renal replacement therapy or renal transplant. Bilateral renal involvement and radiotherapy were not associated with CKD development. Metastatic disease determines a higher risk of CKD.

Introduction: Sacrococcygeal teratoma is the most common solid neonatal tumour. The improvement in survival has meant that postoperative sequelae can be diagnosed and treated. The aim of this article is to evaluate the long-term outcomes of patients treated in our centre., Material and Methods: Records of patients treated for a sacrococcygeal teratoma in our hospital from 1977 to 2014 were retrospectively reviewed. Personal data was collected and a telephone questionnaire was used to assess long-term bowel and urinary habits, as well as an aesthetic and functional self-assessment., Results: A total of 14 patients were treated during the study period, of whom 11 were females and 3 males, with a mean age at the time of the survey of 17 years (8 months-37 years). Eight patients completed the questionnaire (57.1%). The mean age of the 8 patients was 23 years (4-37 years), of whom 37.5% were operated on due to a sacrococcygeal teratoma type i, 25% type ii, 25% type iii, and 12.5% type iv. Two of them (25%) had constipation, and one (12.5%) had faecal incontinence. Two (25%) patients suffered from recurrent urinary tract infections, and 3 (37.5%) patients had urinary incontinence. Five patients (62.5%) had a perception of being physically impaired, with limitation of their social life., Conclusions: The incidence of constipation does not differ from that found in the literature. Faecal incontinence is slightly improved compared to what has been published. However, urinary tract infections and incontinence are more prevalent in our series. Five patients out of the eight that responded suffered from psychosocial problems, according to DAS-59 questionnaire. Patients with SCT require urological, bowel, and psychological counselling, until they have a complete functional and emotional development., (Copyright © 2016 Asociación Española de Pediatría. Publicado por Elsevier España, S.L.U. All rights reserved.)

Objectives: To study the variability of techniques used for vascular access of central venous devices, totally implanted and external tunneled, as well as polling the use of ultrasound by pediatric surgeons in Spain., Material and Methods: Descriptive study of a survey results, conducted by phone, email and online, about 20 items related to the placement of these devices in children and the use of ultrasound in this procedure., Results: We analyzed 71 surveys from 31 national hospitals. The response rate was 54%. In 66% of the cases the pediatric surgeon is the one who carries out the vascular access. 75% of the respondents place less than 25 catheters/year. Only 28% have attended to an ultrasound-guided vascular puncture course. The vein used more often is the internal jugular (55%), followed by the subclavian (17.4%), with preference for the right side in most of the cases (87%). 64% perform the ultrasound-guided technique, 29% the venous cutdown and 7% the landmark approach. There is no significant association between the technique chosen (landmark vs ultrasound-guided) and the vein used (p= 0,062). The majority of the respondents does not modify the usual approach in case of coagulopathy. We describe the complications associated with the three techniques., Conclusions: The preferred via for the vascular access by pediatric surgeons is the internal jugular vein, being this access ultrasound-guided in most of the cases. 91.5% consider the use of ultrasound decreases the number of associated complications. Nevertheless, just a minority has attended to a training course.

Objetives: The implantation of long duration intravenous catheters in pediatric population constitutes a challenge due to the size of vascular structures. Because of that, ultrasound is an important tool for vascular accesses in newborns and infants. The objective is to analyze our experience in ultrasound-guided implantation of reservoir type and tunneled catheters, as well as to compare it between both age groups., Material and Methods: Review of the ultrasound-guided implantable catheters placed from October 2010 to December 2014 in children under 18 months., Results: 32 devices were placed in 4 neonates and 28 infants. Mean age was of 252 days and mean weight of 6,7 kg. 23 of them were reservoir type devices and 9 tunneled. No statistically significant differences were found for mean surgical time (55 versus 52 minutes). In tunneled catheters implantation there was no difference in surgical time between neonates and infants, but there was difference for reservoir type catheters (72 minutes in neonates vs 53 minutes in infants). In 78,5% of infants it was possible to place the catheter in the first puncture, versus 50% of neonates, although it was not statistically significant. As complications, one hematoma and one postoperative infection were described., Conclusions: We found that implantation of reservoir type catheters in infants constituted less surgical time compared with neonates, and puncture on left axillary vein was the most effective. Axillary vein ultrasound-guided approach is a safe and reproducible procedure that needs a process of formation and training.

Introduction: Segmental cervico facial hemangiomas are defined as those longer than 5 cm, affecting a specific facial area. These lesions can be eventually associated with the PHACE syndrome. Our aim is to propose neonatal treatment with propranolol, showing its efficacy/safety, given the scarce evidence on its neonatal use., Clinical Observation: After written informed consent, four patients with segmental facial hemangioma were treated with propranolol in the neonatal period. Adverse effects were registered during initial admission. Three of the four patients had PHACE syndrome. Propranolol was effective in 100% of patients, showing hemangioma´s involution without any adverse effect., Comments: In our series, propranolol was effective and showed no side effects in the neonatal period. If propranolol benefits are greater than its risks, administration of the lowest effective dose is recommended, under hospital surveillance, starting shortly after diagnosis, in order to achieve improved efficacy.

Objectives: To describe our experience in testicular and paratesticular tumors during the prepubertal stage, focusing especially on its character of benignity/malignancy and surgical treatment used., Material and Methods: Retrospective review of all testicular tumors in children under 12 years diagnosed and treated in our clinical setting from 1998-2015. Data on their presentation, study and management were collected., Results: 17 children with prepubertal testicular tumors were identified. The clinical presentation as palpable testicular mass occurred in 12 cases (70.5%). Levels of tumor markers (alpha-fetoprotein and βhCG) were only increased alpha-fetoprotein in two cases. In the histopathological study, 64.7% of the tumors were benign (five mature teratomas, four Leydig cells tumors, one immature teratoma and one sexual cords-stromal tumor). Malignant tumors were three rhabdomyosarcoma (17.6%), two yolk-sac tumors (11.8%) and one Burkitt lymphoma (5.9%). The mean age of benign was 5.9 years old and malignant 2.9 years old (p=0.68). From neoplastic lesions nine were non-germline (53%) and eight germline (47%). In the management testis-sparing surgery was performed in six benign tumors, and orchiectomy in five benign tumors and in all malignant tumors except lymphoma which received chemotherapy., Conclusions: Benign primary testicular and paratesticular tumors are more frequent in prepubertals and testis-sparing surgery is indicated by inguinal approach.

Objectives: Surgical site infection (SSI) has a considerable impact on neonatal morbidity. There are known risk factors such type of surgery (clean/contaminated), prematurity, surgical length, hypoalbuminemia, previous infection, prolonged mechanical ventilation, and so on. Many perioperative factors have not been studied, opposite to adults. We have developed a survey on intraoperative attitudes and measures, as surgical wound management in Neonates among pediatric surgeons, to seek for a wider consense., Methods: Multi-response survey with 22 items, based on the Surgical Infection Society NIH 2008 clinical guideline. Each item poses a question on perioperative attitudes, surgical aspects and wound management. Each question is subdivided in two categories, depending on urgency and type of surgery (clean/contaminated)., Results: 159 surveys were sent. Among those, we received back 51 (32%). 69% of the interviewed surgeons use clorhexidin to prepare surgical field, 25% use Iodine solutions. 69% never use diathermy to incise skin. There was no agreement on the use of sterile plastic adhesive drapes, intra-cavity lavage, changing surgical gloves/material, or wound irrigation during closure. 82% never use cyanocrilate dressing. Intracuticular skin suture and simple stitches were used indistinctly. Wound management and dressings were not uniform and depended on each pediatric unit., Conclusions: The survey reflects the lack of consensus regarding prophylactic measures and wound management among pediatric surgeons who care after surgical neonates.

Unlabelled: There is controversy about the convenience of performing a bacteriological peritoneal culture in pediatric appendicitis. We performed a sero-epidemiological survey of the bacteria found in peritoneal swabs from pediatric appendicitis operated in our hospital., Methods: Ambispective study. Retrospective revision of the bacteriological results from peritoneal swabs performed in pediatric appendicitis from january 2009 to december 2010 (2 years) and prospective study of peritoneal swabs collected between january 2011 and december 2011 (one year)., Results: We found 728 pediatric patients (mean age 7.1, range: 2-11 years). Among these, 108 were < 5 years. Cultures were performed in 328 (45.1%). A positive result was found in 155 swabs, (47.3%). Positive cultures were more frequent in patients < 5 years (69.2% vs 40.4%, p < 0.001). The most frequent pathogens were E. coli: 122 specimens, Streptococcus spp (50 swabs), P. aeruginosa: (45) and B.fragilis: (35) Younger age was strongly associated with P. aeruginosa: (30.8% vs 8.4%, p < 0.001. OR: 4.8. IC 95%: 2.3-9.8). So was the detection of E. coli (50% vs 33.2% p = 0.01). 21.3% (26 swabs) of E. coli were resistant to amoxicillin-clavulanic acid. There were 15 (12.3%) multiresistant (ESBL) E. coli. Among the Streptococcus, 32% (16 out of 50) were resistant to clindamicin, and so were 28.6% of the B. fragilis (10 out of 35)., Discussion: . The most frequent pathogens were E. coli, Streptococcus spp and P. aeruginosa. P. aeruginosa is five times more frequent in patients < 5 years. Resistance of E. coli to amoxiclavulanate was high: 21.3% of the specimens. We found that 12.3% of the E. coli produced ESBL.

Background: We sought to retrospectively analyze the clinical presentation, diagnosis, treatment, and outcomes of patients with Parkes Weber syndrome (PWS) who were treated at a single institution., Methods: A retrospective review was conducted of medical records of all patients with PWS treated at La Paz Children's Hospital between 1994 and 2010., Results: Ten patients (median age, 14.8 years [range, 2-52 years]) were identified, including 7 women and 3 men. Six patients presented with lower limb hypertrophy and capillary malformation at birth, and both the right and left lower extremities were equally involved. Severe tricuspid insufficiency was observed in 1 patient. The median dysmetria between both lower extremities was 2.19 cm. Four patients are being treated successfully with compression garment therapy. Three patients underwent resection of multiple arteriovenous nidus. Three patients had palliative embolizations. One patient required above the knee amputation secondary to ischemia and chronic severe pain., Conclusions: The early recognition of PWS is required to establish the most appropriate treatment and prevent short-term morbidity and unnecessary invasive diagnostic tests. Treatment should be individualized according to the age and clinical features of each patient. Although initial conservative management is recommended, surgery continues to play an important role in order to improve the quality of life in these patients., (Copyright © 2013 Elsevier Inc. All rights reserved.)

The management of intra-abdominal testis can be challenging, as evidenced by the multiple methods suggested for its assessment and treatment. In this paper, we report our long-term results for our 14-year surgical experience with laparoscopic management. Methods. Retrospective study of laparoscopic interventions performed at our department for nonpalpable testes between 1996 and 2009. In 174 procedures, we found 72 intra-abdominal testes (5 bilateral) and 25 direct orchiopexies (3 bilateral) were performed. One-stage Fowler-Stephens orchiopexies (FSO) were performed in 5 children. 40 boys underwent the two-stage FSO technique (2 bilateral) in those that reached the contralateral inguinal ring. The second stage was performed in 4 cases with a laparoscopic approach, the rest of them underwent an inguinal procedure exclusively. Mean age for the first intervention was 3.7 yrs, and the second stage was performed on average after 10.9 months. Of 42 undescended testes, 22 were on the right side and 20 on the left side. Median followup was 24 months. Results. Of 42 two-stage FSOs performed, 27 surgeries were very successful, with a testis size equivalent to the contralateral mate; 7 had good results, with a smaller testis (volume up to 50% of contralateral); and 7 resulted in atrophic testis. No complications were encountered during surgery. Conclusions. There is no doubt about the usefulness of laparoscopy for intra-abdominal testes with short spermatic vessels, and the two-stage Fowler-Stephens technique should be the procedure of choice given its high success rate.

Objective: Retrocaval ureter is a rare disease which is due to a abnormal development of the inferior cava vein. It usually presents with ureteral obstruction, and surgery is needed for symptomatic cases., Method: We present a case of retrocaval ureter and a revision of the literature., Results: A 9 year-old boy who had consulted for macroscopic hematuria. The intravenous urography (IVU) suggested the diagnosis of retrocaval right ureter, which is confirmed by magnetic resonance imaging (MR). Make us resection of the retrocaval segment and relocation of the ureter anterior to the inferior vena cava. Follow-up IVU showed good resolution of hydronephrosis., Conclusions: Retrocaval ureter is a rare disease, with easy diagnostic and effective treatment. Other associated anomalies could be associated.

We report on a 6-year old child with a penile injury resulting in the inclusion of a pellet in the cavernous body, by a fortuitous shot. Conservative approach with elective extraction of the bullet and cavernous body repair led to a satisfactory result, in better anatomic conditions. The patient did not have any perioperative complication. Accidents by air weapons are particularly important in children, because these weapons are erroneously considered as toys. Air gun injuries to head, neck and thorax have been often published, but these injuries are rare in the chidren genitourinary area.

Case: A 3-year-old boy underwent emergency external ventricular drainage and excision of a fourth ventricle anaplastic ependymoma. A week later, the child was given a ventriculo-peritoneal shunt. Fourteen days after shunting, the child developed a subphrenic abscess and acute cholecystitis that required surgery., Results: A Staphylococcus epidermidis was isolated both from the ventricular catheter and CSF and from the subphrenic abscess and the gallbladder. To our knowledge, this is the first report of cholecystitis evolving as a descending shunt infection. The current literature related with this unique complication is briefly reviewed.