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Objective: High-pressure balloon pneumatic dilatation for the treatment of primary obstructive megaureter (POM) was initially described under cystoscopic and radiological control. However, some groups use cystoscopic control only, in an attempt to avoid the ionizing radiation associated with the procedure., Materials and Methods: A retrospective study of POM patients treated with pneumatic dilatation in our unit from 2008 to 2021 was carried out. Success rates, complications, and follow-up were compared between two groups -dilatation under cystoscopic control alone (CS) vs. dilatation under radiological control only (RX)., Results: 23 patients -9 CS and 14 RX- underwent surgery. Both groups were demographically comparable. Mean hospital stay was significantly shorter in the CS group (1 vs. 2 days; p =  0.009). Operating time was longer in the RX group (78 vs. 30 min; p =  0.001). Ureterovesical junction (UVJ) dilatation was successful in 100% of CS vs. 79% of RX cases; RR: 3.87 (0.51-26.99). Postoperative complications were similar in both groups; RR: 3.87 (0.51-26.99). Double J stent migration occurred in one case in both groups; RR: 0.64 (0.05-9.03). In the long-term, treatment success rate was higher in the CS group (100% vs. 71%); RR: 3.87 (0.51-26.99)., Conclusion: POM pneumatic dilatation under cystoscopic control alone is faster, without increasing the risk of complications. Based on our experience, we suggest ionizing radiation be removed, since we consider it to be unnecessary.

Objective: The objective of this study is to compare the outcome of treatment with drainage and urokinase (UK) versus thoracoscopy (TS) in pleural empyema secondary to complicated pneumonia., Methods: This was a retrospective study of patients with complicated parapneumonic effusions between 2008 and 2019 treated with UK or TS. Epidemiological and evolutionary data compared days of fever, antibiotic, pre- and postprocedure stay, time to radiological resolution, and complications. The results were expressed as medians and the comparisons were made by the Mann-Whitney U-test., Results: Of 143 patients with NC, 46 were empyemas (26 men), 25 were treated with TS, and 10 were treated with UK. The remaining 11 received combined treatment, being excluded from the study. There were no significant differences between TS versus UK in age (median 4 vs. 3 years), days of fever before the procedure (4 vs. 2) and after (2 vs. 2), days of antibiotic treatment before the procedure (4 vs. 4), overall hospital stay (15 vs. 13 days), and months until radiological normalization (2 vs. 2). The complications related to the therapy were scarce in both groups and had no impact on evolution. Patients with TS had a longer preprocedural stay (4 vs. 1; P < 0.001) and required fewer days of subsequent antibiotic after procedure (8 vs. 11; P = 0.03), and a shorter overall antibiotic treatment time (11 vs. 16; P = 0.03). They also had a shorter post-TS stay (9 vs. 12 days), although this difference did not become significant ( P = 0.09)., Conclusions: In our experience, the results obtained with both procedures are quite similar, although patients undergoing TS had a better evolution (fewer days of antibiotic and a tendency to less hospitalization), despite having been performed a priori in more evolved patients., Competing Interests: There are no conflicts of interest., (Copyright: © 2022 Annals of Thoracic Medicine.)

Introduction: In pediatrics, there are few standard criteria to classify and consolidate postoperative complications, particularly in appendectomy, where according to the literature, complications range from 5% to 30%., Methods: A cross-sectional, observational, retrospective study of patients undergoing surgery as a result of suspected acute appendicitis (AA) from December 2018 to January 2020 was carried out. Complications were grouped and consolidated according to the Clavien-Dindo (CD) classification. Postoperative complications and factors involved were analyzed by conducting a bivariate and multivariate statistical study using SPSS statistical software, version 25., Results: A total of 124 patients were studied. Mean age was 9 years (3-14 years). 62% were boys, and 38% were girls. All patients underwent appendectomy - 80.6% through laparotomy, and 19.4% through laparoscopy. 20% of patients had postoperative complications, which were grouped according to the CD classification (p = 0.002). Most complications were included in the CD I group (64%). Collections treated with antibiotic therapy were included in the CD II group (28%). Intra-abdominal collections requiring re-intervention for drainage purposes were included in the CD IIIb group (8%). The main factors driving complications were complicated AA (81% gangrenous and perforated) (p < 0.001) and progression time (80% > 24 h of progression) (p = 0.036), which increased mean hospital stay by 7 ± 4 days (p = 0.016). 137 ± 37 CRP levels were associated with plastron identification (p < 0.001), whereas 109 ± 19 CRP levels were associated with peritonitis (p < 0.001)., Conclusions: The Clavien-Dindo classification allows post-appendectomy complications in pediatric surgery to be classified using a common language, by associating complication grade with treatment complexity.

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.

Introduction and Objectives: Ovarian tumours are rare in childhood, and account for 1-5% of all tumours. The aim of this study is to determine the epidemiological features, histological subtypes, and therapeutic management of ovarian solid ovarian tumours of the paediatric population of the province of Cordoba, in Spain., Material and Methods: A retrospective, descriptive, observational and institutional study was conducted in which a review was made of the clinical histories of patients younger than 14years-old diagnosed with ovarian tumours, excluding secondary tumours in a University Hospital between 1994 and 2017. A review was carried out on the age, clinical presentation, laterality, diagnostic methodology, treatment, histopathology, and evolution of these tumours., Results: A total of 37 ovarian tumours were reviewed in 31 patients, 6 of them being bilateral. The mean age was 10.3 (0-14) years, with 58% presenting as a palpable mass. There was no predominance of laterality. The tumour markers were negative. Conservative surgery was performed in 29.7% and adnexectomy in 70.3%. Only one case required post-operative adjuvant chemotherapy treatment (stageI immature teratoma with peritoneal gliomatosis). The histological study shows a predominance of germ cell tumours (65%) against those of epithelial lineage (22%). There were 3 stromal tumours that corresponded to fibroma (Gorlin syndrome), and bilateral gonadoblastoma associated with Frasier syndrome. The most frequent type of tumour was mature cystic teratoma (35.1%). There were no complications in the follow-up., Conclusions: Given that most childhood ovarian tumours are benign, conservative surgery is considered as the first choice, being even more important in bilateral tumours. If there is a family history, it is essential to carry out molecular genetic studies, to rule out associated syndromes., (Copyright © 2020 Asociación Española de Pediatría. Publicado por Elsevier España, S.L.U. All rights reserved.)

Objective: To identify the factors that influence surgical suspensions (SQ) in a pediatric surgery service, to estimate its economic impact and to analyze the effect that strategies aimed at increasing efficiency and improving medical-surgical care would have., Materials and Methods: Retrospective analysis of SQ in 2015, depending on the patient, organization or professionals, time of year, schedule (morning or afternoon) and type of surgery: major ambulatory surgery (CMA) or with hospital admission. Implementation of corrective measures against the main causes and subsequent comparative analysis in 2016 and 2017, comparing the results using Chi2 and Fisher's test. Evaluation of the economic impact based on lost operating hours., Results: The SQ rate in 2015 was 8.9%: 90.7% attributable to the patient, 6.8% to organizational factors and 2.7% to professionals. There were no significant differences according to the time of year or between morning or afternoon, but they were significantly more frequent in CMA (10.84% vs. 2.63%, p <0.001). After introducing improvement measures, SQ decreased significantly in 2016 and 2017 (6.2 and 4.9% respectively, p<0.01), mainly patient-dependent (80 and 73.9%, respectively, p=0.03). There were no differences between CMA and surgeries with admission and there was a decrease in the associated costs (€ 40,946 in 2015, € 18,217 in 2017)., Conclusions: SQ represent an inconvenience for the patient, professionals and institution, that can be minimized with the implantation of simple, feasible and contrasted measures, that increase the efficiency and, probably, the satisfaction of users and professionals.

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.

Introduction: Obstructed Hemivagina and Ipsilateral Renal Agenesis (OHVIRA) syndrome is a rare variant of Müllerian anomalies. Delay in diagnosis and treatment can produce serious complications in patient's life and fertility. The aim of this study is to present our experience in clinical presentation, diagnosis and complications of patients with OHVIRA syndrome in a 20-year period., Patients and Methods: Retrospective analysis of 9 women under 25 years old with OHVIRA syndrome between 1997 and 2017. Analysis included clinical characteristics, demographic, diagnostic methods, follow-up, treatment and complications., Results: A total of 9 patients were studied, 5 diagnosed in prepuberal age and 4 postpuberal. 55% had prenatal diagnosis of renal agenesis and in 3 was incidentally diagnosed. Follow up period for single kidney to diagnosis was 3.6 years (range: 0-13,4 years). Right side was affected in 55%. Symptoms were dysmenorrea (44%), recurrent abdominal pain (22%), urinary dysfunction (22%). Complications were present in postpuberal patients and included hydrometrocolpos (22%) and pyocolpos (11%) requiring septostomy or septum resection. Surgical removal of the septum was performed in 44%). Prepuberal patients were asymptomatic., Conclusions: OHVIRA syndrome is a rare anomaly in the development of Müllerian ducts with variable clinical presentation. High suspect in patients with single kidney is necessary to avoid potential complications by providing surgical treatment.

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.

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.

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.

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.

An FDA alert in December 2016 on the safety of general anesthesia and sedations in patients less than 3 years of age and pregnant women has raised doubts in relation to the attitude that professionals implicated in these procedures should adopt in relation to these specific group of patients. Confronted with this situation, the following medical scientific societies: Sociedad Española de Anestesia y Reanimación (SEDAR), Sociedad Española de Cirugía Pediátrica (SECP), Sociedad Española de Cuidados Intensivos Pediátricos (SECIP) y Sociedad Española de Neonatología (SENeo), have established a working group to analyze and clarify the safety of these techniques. In the present article we conclude that at present both general anesthesia and profound sedation are considered safe procedures because there is no evidence of the opposite in studies with human beings. However, this ascertained safety should not obviate the problem which still needs to be followed with attention, especially in patients less than 3 years of age undergoing anesthetic procedures for more than 3 hours or prolonged sedation in the Neonatal or Pediatric Intensive Care Units., (Copyright © 2017 Asociación Española de Pediatría. Publicado por Elsevier España, S.L.U. All rights reserved.)

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.

Introduction: Nissen fundoplication (NF) is the most used and effective technique for the treatment of gastroesophageal reflux in children. The laparoscopic approach (LNF) is safe, with low morbidity and high success rate, although some cases require a conventional approach (CNF). The aim of the study is to compare the results between LNF and CNF in our centre., Material and Methods: A retrospective review was performed on patients <14years after NF between 2000 and 2015. A comparison was made of the complications, hospital stay, and follow-up for both approaches., Results: Of the total 75 NF performed, 49 (65.3%) were LNF, 23 (30.7%) CNF, and 3 (4.0%) reconversions. Concomitant laparoscopic gastrostomy was performed in 10.7%, and open gastrostomy in 5.3% of cases. Prior to NF, 10.7% had a gastrostomy. The mean age was 4 years and 68.7% were male. Of the diagnoses, 36% had encephalopathy, 14.7% hiatal hernia, 5.4% oesophageal atresia, and 5.4% an acute life-threatening event. No differences were found in operation time. More than two-thirds (36%) had complications, which were more frequent in the CNF (OR=3.30, 95%CI: 1.1-9.6). The hospital-stay decreased by 9 days in the LNF (95%CI: 5.5-13.5). Mean follow-up was 26 months (95%CI: 20.9-31.6). Mortality during follow-up was of 5.3% (5 respiratory failure, 1 sudden cardiac death, and 2 due to complications of the encephalopathy), 4.2% required re-fundoplication, 15.8% had symptomatic improvement, and 64.0% had absence of symptoms., Conclusions: The LNF is an effective technique for the treatment of gastroesophageal reflux, with lower morbidity and shorter hospital stay than CNF. It is recommended as the first surgical option., (Copyright © 2015 Asociación Española de Pediatría. Publicado por Elsevier España, S.L.U. All rights reserved.)

Objectives: Testicular (TT) and paratesticular (PT) tumors account for 1-2%of all infant solid tumors. Due to the increased frequency of benign tumors, conservative management is recommended. Our experience and the therapeutic approach adopted considering testis-sparing surgery, was reviewed., Methods: A retrospective observational study concerning testicular and paratesticular tumors in our hospital between 1998 and 2016, was performed. Age, side, symptoms, imaging, treatment methods, histological findings and evolution were reviewed., Results: Nineteen cases of TT and PT were reviewed in 17 patients. A painless scrotal mass was found in most cases as the initial presentation (79%). Tumor markers were normal in all cases. Similar distribution between germ cell and stromal testicular tumors was found Nevertheless, benign and malignant PT proportion was similar. Testis preserving surgery was performed in 58% of TT and in 57% of PT., Conclusions: Due to the high incidence of the benign histological findings, testicular sparing surgery should be considered as a first therapeutic option, especially in those cases with normal tumor markers.

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.

Purpouse: Intestinal duplications (DI) are rare congenital anomalies (1/10.000 new born). We analyze the clinical characteristics, management and treatment of intestinal duplications in our center., Materials and Methods: We perform a retrospectively descriptive analysis review by the DI confirmed by histological studies since 1993-2014 in our center. The variables analyzed are: age, sex, clinical presentation, localization, anatomical type, associated diseases, heterotopic tissue, treatment and complications., Results: We found ten patients diagnosed with DI. 60% were male, the middle age was 2.72 years (12 days-7 years). In the clinical presentation 30% presents acute abdomen, another 30% gastrointestinal bleeding and 30% were prenatal diagnosed. Imaging studies were echography, gammagraphy, magnetic resonance imaging and intestinal transit contrast. The most frequent localization was the yeyuno-ileal (60%) with cystic predominance; the gastric, duodenal colic was 10% respectively; an ectopic localization was a suprarenal mass. The treatment was a complete resection by laparotomy in eight cases and laparoscopic in two In the duodenal duplication, we perform a partial resection and mucosectomy. In 60% was necessary the intestinal resection. In anatomy pathologic results, gastric tissue (heterotopic tissue) was present in 70% and pancreatic tissue in 10%. We report an intussusception postsurgical as a complication., Conclusions: The preoperative diagnosis is rare, although prenatal diagnosis is increasing. Clinical manifestations are associated with the location of the DI and the existence of heterotopic gastric mucosa. Laparoscopy is currently the treatment of choice in uncomplicated cases.

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., (Copyright © 2014 Asociación Española de Pediatría. Published by Elsevier España, S.L.U. All rights reserved.)

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.

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.

Introduction: Patient safety is a key priority in quality management for healthcare services providers. Every patient is entitled to receive safe and effective healthcare., Aims: The aim of this study was to design a patient safety plan for a Paediatric Surgery Department., Methods: We carried out a literature review and we established a work group that included healthcare professionals from the Paediatric Surgery Department and the Quality and Medical Records Department. The group identified potential adverse events, failures and causes and established a rating using Failure Mode Effects Analysis. Potential risks were mapped out and a plan was designed establishing actions to reduce risks. We designated leaders to ensure the effective implementation of the plan., Results: A total of 58 adverse events were identified in the Paediatric Surgery Department. We detected 128 failures that were produced by 211 different causes. The group developed a proposal with 424 specific measures to carry out preventive and/or remedial actions that were then narrowed down to 322. The group designed a plan to apply the programme, which is currently being implemented., Conclusions: The methodology used enabled obtaining key information for improvement of patient safety and developing preventive and/or remedial actions. These measures are applicable in practice, as they were designed using proposals and agreements with professionals that take active part in the care of children with surgical conditions.

Introduction: Ovarian torsion presents low incidence in children and unspecific clinical presentation, therefore the diagnostic delay is rather common. Traditionally, necrotic appearance has been synonymous of oophorectomy, however the current trend defends ovary preservation. We present our experience in conservative management of ovarian torsion., Methods: A retrospective review was made of patients between May 2010 and May 2013. Seven girls were operated by laparoscopy because of ultrasound and clinical suspicion of ovarian torsion. The diagnosis was confirmed in six patients, finding an enlarged, friable and black-bluish ovary. Detorsion and adnexal sparing were performed in all cases, despite the gross appearance., Results: The mean age was 8.5 years (3-12), the time interval between the onset of symptoms to surgery was 6.5 days (1-15) and postoperative stay was 2.6 days (2-3). In 4 cases the damaged ovary was right, and the average size was 5.8 cm. Tumor markers were normal. During the first 6 months the follow-up ultrasound showed good results. However, the long-term outcome evidenced one involved ovary atrophied and two oophorectomies due to recurrent adnexal torsion and ovarian mass consistent with teratoma., Conclusions: Laparoscopic conservative management with untwisting the ovary, allows that macroscopically nonviable ovaries could be recovered. However, an exhaustive and long-term follow-up is required to confirm the outcome.

Introduction: Treatment of achalasia in children is in permanent discussion. It is a rare disorder without cure, which makes its management challenging., Methods: Retrospective review of patients under 18 years old treated for achalasia in our Hospital between 2000 and 2012, by either pneumatic dilatation (PD) or Heller myotomy (HM)., Results: Thirteen children were treated during this time. Mean age was 12 years (4-18), interval time between the onset of symptoms and diagnosis was 15 months (2-48) and mean follow-up was 66,8 months (4-144). Dysphagia and vomits were the main symptoms (61%). A single PD was performed in 5 patients; four were the oldest children of the series (16-18). Three girls remain asymptomatic and 2 boys suffer from moderate dysphagia. Six patients required multiple PD and, after a mean of 3 dilatations, HM was needed in all of them. The last 2 children of the series received surgery as the first treatment. In total, eight patients underwent HM and fundoplication, with 6 laparoscopic procedures. Two boys suffer from low-moderate dysphagia, but additional treatments have not been required. The mean of total hospital stay was 12,7 days (2-45) for PD and 9 days (3-30) for HM. Two patients were reoperated because of oesophagic perforation, one after PD and one after open HM., Conclusion: Although PD and HM could be complementary, laparoscopic Heller myotomy should be considered the first therapeutic option, specially in young boys.

Objective: To evaluate the previous history of cryptorchidism in patients with testicular cancer., Materials and Methods: We carried out a study using 175 patients diagnosed with testicular cancer, in our hospital, from 1999 to 2010. We analyzed the previous history of cryptorchidism and its characteristics, testicular placing, histology and intervention age., Results: 5 out of the 175 patients (2,8%) with testicular neoplasm presented a history of cryptorchidism, The average age was 31 years old, an orchidopexy was only carried out in 2 patients. The histology was different depending on the treatment chosen to battle cryptorchidism and in 2 cases it developed in the adjoining testicle. The average ratio was of 1,9., Conclusions: Our results reflect that the association of cryptorchidism with testicular neoplasm is in fact lower than in the past. A good and proper handling of cryptorchidism can prevent it from turning malignant, presenting these patients similar incidences to the rest of the population.

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.

Introduction: Lately, there has been an increase in incidence of acute pancreatitis in childhood. Fortunately, 80% of cases are mild and do not require surgical approach. Several etiologic factors have been implicated, such as infections, trauma, congenital anomalies, drugs, biliary diseases. The aim of this study was to assess etiology, clinical features and outcomes of children with acute pancreatitis treated at our center., Materials and Methods: A retrospective chart review of our cases of acute pancreatitis in patients younger than 16 years old was performed., Results: 24 cases of acute pancreatitis were found from 1998 to 2010. Mean age was 8.75 years. There were 7 boys and 17 girls. The main clinical manifestations were abdominal pain, vomiting and abdominal distention. Mean amylase level was 1565 UI/L. There was one patient with normal serum amylase levels. Serum lipase was required in two patients (239 UI/L and 5,980 UI/L). Ultrasound showed pancreatic lesion in 79.2% of cases. Severe pancreatitis was presented in two cases, due to renal failure and pancreatic necrosis. Surgery was performed in 6 cases (3 cholecystectomies, 1 choledocal cyst resection, 1 percutaneous pseudocyst drainage and 1 necrosectomy) Pancreatic complications were found in 20.8% of cases (4 pseudocysts y 1 pancretic necrosis) Several causes were found: idiophatic, secondary to ERCP, congenital anomalies, drugs, infections, biliary disease and trauma. Mean hospital stay was 25.65 days. There were no deaths due to acute pancreatitis., Conclusions: There are several causes of acute pancreatitis in children. Some cases may present normoamilasemia, situation, in which serum lipase and clinical and radiological criteria are pivotal. Prospective studies evaluating etiological factors and incidence are required.

Unlabelled: We analyzed the relationship between Crohn's disease and appendectomy in paediatric age., Method and Material: We studied the patients diagnosed with Crohn's disease and appendectomy (under 20) between 1999 and 2011. We retrieved their previous medical histories and carried out an histological re evaluation of those appendix., Results: 11 patients out of 137 (8,02%) had an appendectomy before the development of Crohn's disease. An average age in which the appendectomy took place and the development of Crohn's disease was diagnosed 14 (5-20 years), having 90% of the patients diagnosed in the early post-surgical stages. A patient did not develop any symptoms until a year later. There were no more appendectomies carried out in comparison with the adult population. The initial anatomopathologic diagnosis and the histological re evaluation agreed in just one case, compatible with Crohn's disease., Conclusion: The majority of appendectomies carried out in paediatric patients that later develop Crohn's disease are realized by a bias diagnosis of acute appendicitis and the relation between the two of them can be explained as the not yet developed Crohn's disease at the moment of the appendectomy. Appendectomies at a paediatric age are not associated with a potential development of Crohn's disease. There is no evidence of histological changes compatible with Crohn's disease in the first episode.

Aim: To assess the quality of life and symptoms of GER patients who underwent laparoscopy in our hospital before and after surgery., Material and Methods: We collect data from patients operated laparoscopically for gastroesophageal reflux disease (GER) in our center before and after surgery in 3 items: nutritional studies, diagnostic methods, interviews with the families of patients about symptoms (preferably differing in digestive or respiratory symptoms) and quality of life; also, determined the age, gender, personal history and surgical technique of patients., Results: 30 patients have been operated for GER, 22 men and 8 women, 11 months to 14 years (median age 5 years) of whom 12 (40%) had some degree of encephalopathy. The most common surgical technique used is Nissen (73% cases). Most patients had significant alterations in their daily activities before surgery. The most common symptom was gastrointestinal (70% cases), although all showed improvement, families of children with respiratory symptoms related predominantly greater reduction in the clinic after surgical correction. All improved in its growth curve., Conclusions: Surgery for GER patients have a significant improvement in their quality of life, not only by the reduction of their symptoms but also in enhancing from the nutritional status. Patients with respiratory symptoms have a higher satisfaction with surgical treatment than those with gastrointestinal clinical.

Purpose: To assess the role that the muscular dysplasia, epidermal growth factor (EGFR) and interstitial cells of Cajal (ICC) C-kit +, may have in the pathophysiology of pyeloureteral stenosis (EPU)., Materials and Methods: 30 samples were studied UPJ (ureteropelvic junction), with 25 UPJ obstruction and 5 controls. Performed with Masson's trichrome staining and immunohistochemical techniques for smooth muscle actin, EGFR (epidermal growth factor) and CD117 (C-kit) (Dako). We compared the results statistically., Results: The control group was diffuse positivity of EGFR in the muscle layer in samples of EPU was positive in 4%, weak in 16% and negative in 80%. The controls are C-kit + ICC between the muscle cells showed a decreased density in the samples of obstruction. Masson's trichrome highlighted the increase of inter-and intramuscular collagen and attenuated muscle fibers, thinner and individualized, in the inner muscular layer of the cases of EPU also evident with the actin. Differences between groups were statistically significant (p < 0.001)., Conclusions: Our results suggest that dysplastic changes in the muscle layer, the low expression of EGFR and the decrease or absence of C-kit + ICC, may participate in the pathophysiology of UPJ obstruction.

Introduction: The appendices or hidátides of the testicle are structures that are considered an embryonic rest. In testicular hidátide estrogen receivers have been demonstrated but in the epididimys the results vary. Has been theorized that the elevation of the estrogen levels in the puberty can produce an inflammation and torsion of hidátide, nevertheless, in the epididimys in which the estrogen expression is not clear (and also they are twisted) the theory is put in doubt. This controversy takes us to the accomplishment of this work., Material and Method: A prospective study is made in 20 testicular appendices, of which 7 from the epididimys are extirpated of patients to whom an escrotal exploration is made in the development of surgery of processes of the inguino-escrotal channel (hidroceles, hernias). Optical microscopy and inmunohistoquímical study are analyzed by means of using prediluted monoclonales antibodies, for receivers of estrogens, androgens and proliferative index. The results were proceed and analyzed by means of SPSS statistical program., Results: All hidátides, testicular and from the epididimarys expressed receivers for estrogens without significant difference among them, not existing differences as far as the location of receiving sayings within the three compartments of hidátide. The number of estrogen receivers was in relation to the age of the patient. Only hidátides from the epididimys fundamentally expressed receivers of located androgens and at level of ductus. We have not found significant relation between the proliferative index and the expression of estrogen receivers. The proliferative index was more elevated at level of ductus., Conclusions: 1) As much the testicular appendices as those from the epididimays expressed receivers of estrogens at level of the three compartments. It makes think about a same embryonic origin, although only the epididimal ones expressed androgen receivers. 2) the observation of estrogen receivers in both types of hidátides, as well as the relation of the number of such with the age of the patient, makes think that the increase of estrogens in the puberty can participate in patogénia of the torsion of these appendices.

Introduction: The inguinal hemiotomy is a surgical procedure common in pediatric surgery and as in any operation the control of the pain is fundamental. The aim of this study is to verify the effect of the local anesthesia next to the general anesthesia, in the control of postsurgical pain., Material and Method: A prospective study is made in 60 patients submitted for unilateral repair of hernia inguinal and hidrocele, under general anesthesia. The patients were designated at random in three equal groups after the anesthetic induction. In group I ilio-inguinal blockade is made, before the surgical incision. In group II local infiltration is made after the closing of the aponeurosis and in group III the anesthetic is not infiltrate. The age of the patients included was between 1 and 13 years. For the valuation of the pain and comparison between the three groups we used: 1) Measurements of conductual type. 2) Measurements of biological type before and after the intervention: Arterial tension, cardiac frequency, respiratory frequency... 3) Laboratory measurements: cortisol levels, prolactose, insulin and glucose. Two extractions are made, first after the anesthetic induction and second 60 minutes after the intervention. The results were analyzed using computer statistical program SPSS. A probability value of < 0,05 was considered significant., Results: 1) Conductual measurements: the differences between groups I and II in relation to the III were significant. This conductual difference also was related to the age of the patients. 2) Measurements of biological type: in groups I and II the postoperative arterial tension average was smaller, but only in group I the difference was significant. The heart rate decreased in the three groups, but was significant only in group I, like the respiratory frequency. 3) Laboratory measurements: in groups I and II the levels of cortisol and glucose diminished in the postoperative period, but only in group I the difference was significant. The values of prolactose diminished in the postoperative period in group I but was not significant. Insulin experienced an increase in the three groups, although smaller in group I., Conclusions: 1) The results of the study demonstrate specially that the local infiltration of anesthetic diminishes the metabolic answer and reduces the intensity of the postoperating pain, when is made before the beginning of the surgery. 2) In the conductual answer to the pain not only influences the use of the anesthetics but the age of the patient.

Helicobacter pylori (H. pylori) has been found in the upper gastrointestinal tract. It is incriminated as aetiological factor in various pathological conditions. This study was designed to determine whether H. pylori plays a role in the pathogenesis of acute appendicitis. H.pylori was investigated in 40 patients divided in 2 groups. A: patients with abdominal pain and B: patients with acute appendicitis, confirmed by pathology studies. The Ag H.pylori was investigated in the faeces of both groups. In the group B, besides, appendix samples were tested for culture for H. pylori. Confirmation was made by PCR (Polymerase Chain Reaction) analysis. Statistical analysis was made. The positivity for H. pylori infection in the faeces was found in Group A in 15% of the patients and in the group B in 35%. In the group B, besides, the culture of the appendix cecal was positive in 71.4%. Though was observed difference between both groups, this one was not significant. It seems that H. pylori colonizes the appendix in small proportion and is unlikely to be associated in direct correlation with acute appendicitis. However, seropositive patients with acute inflammation are likely to suffer from purulent o gangrenous form.

The carcinoid tumour of the appendix and the mucocele are entities rather infrequent in children and are normally diagnosed in the course of an appendicectomy that is, in most of the cases, curative. The association of both processes is unusual. The authors present a case of carcinoid tumour of the appendix associated to mucocele in a male, aged 10 patient, who underwent an appendicectomy by suspicion of an acute appendicitis. The histologic study confirmed the presence of a mucocele of the appendix associated to a carcinoid tumour with a 0,7 cm diameter. The serum serotonin and chromogranin A assessment was normal, and the TAC and colonoscopic examination resulted in no meaningful findings. The appendicectomy itself was curative, deeming it the appropiated treatment in tumours under 2 cm diameter.

Introduction: The frequency of the recurrent abdominal pain without demonstrable pathology is high and in occasions it takes to the surgeon to practice an appendectomy. In most of the cases the pain disappears. This performance although subjective, it doesn't base on objective data, what takes us to carry out this work., Material and Method: The study is carried out in 47 patients with recurrent abdominal pain and subjected to appendectomy, 17 were excluded by diverse causes. The vermiform appendixes were studied by morphological and immunohistochemical methods, using the monoclonal antibodies, valuing morphologic sing of a chronic inflammation of the appendix., Results: 100% of the samples studied presented microscopically chronic inflammatory changes microscopically. We observe fibrose in 100%, lympho-plasmocytic inflammatory infiltrate in 60% and a lymphocytes T prevalence has more than enough lymphocytes B., Conclusions: Our results support the existence of a clinical-pathological condition that can be defined as chronic appendicitis and therefore it justifies the appendectomy in recurrent abdominal pain when another disease has been excluded.

Introduction: In spite of the clinical experience about infantil Hypertrophic Pyloric Stenosis (IHPS), its etiopathology remains unknown. Recent studies have been focussed in immunohistochemistry techniques for valuing the neuronal development in the pyloric muscle., Material and Methods: We took biopsy from 10 babies diagnosed of IHPS and 10 babies with similar age, died because of other causes. Immunohistochemical study was performed using monoclonal antibodies: S100 protein, GFAP, enolasa and neurofilaments NF. The results were showed semi-quantitativement as strong (++), moderate (+) and absent (-). Immunotinction of the myenteric plexus (ganglion cells and satellite) and nervous fibers of the muscle layer, were done., Results: We observed a poor immunoreactivity in the muscle layer (longitudinal and circular) in the 60-70% of specimens of pyloric muscle in babies with IHPS. GFAP were absent in the 80% in the myenteric plexus. This poor innervation may be related to the etiopathogenesis of pyloric stenosis and hypertrophy.

The role the FAS and BCL-2 in the apoptosis of testicular cells in the contralateral testis after unilateral testicular torsion, was investigated. We compared with control group. These experiments were performed in male Wistar rats prepuberal old. FAS and BCL-2 determination is realized in cells cultures of contralateral testis. Flow cytometry and immunohistochemistry studies, using a FAS and BCL-2 specific monoclonal antibody, were utilized to value FAS y BCL-2 expression on testiculaires cells following unilateral testicular torsion. We observed an increase of expression of FAS and decrease of BCL-2 in the contralateral testis in comparison with control group. The present results may indicate that the expression of this molecules is implicated in cellular apoptosis.

The cellular degeneration, present at the criptorchidism leads to a malfunction in the spermatogenosis and it's due to cellular apoptosis (programed cellular death). This process is turned on and modulated by different ways. One of then is mediated by Ag-Ac reactions and a protein called FAS seems to have an important role in it's modulation. We studied the relation between FAS an the increased apoptosis in undescended testics. Testicular biopsies were done in criptorchid patients during orchidopexy and FAS was measured by immune-techniques. Our results seem to dismiss FAS as a modulation apoptosis factor in the cryptorchidism.

Psoas abscess is an infrequent disease. We present a right psoas abscess diagnosed in a thirteen-year-old child. There wasn't a history of known trauma nor immunodeficiency. We didn't find another infection focus so the abscess was described as primary one. This is the most commonly presentation in children. Staphylococcus aureus was the bacteria identified in blood culture. The presenting symptoms were bottom and hip pain, limp and fever. The differential diagnosis was established with suppurative arthritis of the hip. Diagnosis was confirmed by Magnetic Resonance. In regard to treatment the patient was exclusively treated with systemic antibiotics, high spectrum of activity. The patient didn't require percutaneous-drainage. Though surgical drainage wasn't made, evolution was favourable and recurrence wasn't observed.