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Pectus excavatum is the most common chest wall deformity in the Czech Republic. This chest deformity is typically characterized by a wall depression with sternal rotation. If the excavation of the chest wall does not cause any physical or psychological problems, the patient does not need any specific treatment. However, if the deformity is painful, affects the function of the lungs, heart or results in psychological problems, we can propose an appropriate treatment for the specific age category of the patient. Up to 10 years, we choose a procedure that includes targeted exercises and rehabilitation; in the age group of 10-15 years, we can add to the exercises the vacuum bell therapy according to the patient's wishes and compliance; and in the age category of 16 years and above, the patient can be offered a surgical solution. The Nuss operation (so-called MIRPE - minimally invasive repair of pectus excavatum) is the gold standard in surgical treatment; during this surgery, a patient-shaped bar is inserted retrosternally into the patient's chest under thoracoscopic control and is left for 3 years. The aim of this article is to describe the most common modern methods used in the treatment of patients with pectus excavatum, supplemented by a historical overview.

Background: Endoscopic retrograde cholangiopancreatography (ERCP) is seldom used in children, and published series have limited numbers of pediatric patients. The aim of this retrospective observational study was to assess the efficacy and safety of pediatric ERCP in a large group of children., Methods: Data were evaluated from 626 children with biliopancreatic disorders admitted to University Hospital Motol, Prague, between January 1999 and January 2018. Clinical data were obtained by retrospective evaluation of our database of pediatric ERCP procedures and from clinical records., Results: We performed 856 ERCPs on 626 pediatric patients; of these procedures, 59% were therapeutic and 41% were diagnostic. We achieved 96% technical success. Indications for ERCP and pathological findings differed in different age groups. The main role of ERCP was in excluding biliary atresia in those aged less than one year. In children aged 1 to 6 years, the most frequent diagnoses were choledochal cyst followed by choledocholithiasis. In children aged 7 to 12 years and 13 to 19 years, the most frequent diagnoses were choledocholithiasis followed by pancreatic pathology. The overall complication rate found in this study was similar to rates observed in adult populations., Conclusions: Our study shows the efficacy and safety of diagnostic and therapeutic ERCP in a large series of infants and children with technical success and complication rates comparable to those in adults. Our data show that ERCP had different roles in different age groups of children., Competing Interests: The authors have declared that no competing interests exist.

Introduction: Surgical diseases of the pancreas in children are not common and may be associated with significant morbidity and potential mortality. A multidisciplinary approach is essential for correct diagnosis, surgical strategy and postoperative as well as follow-up care., Method: Retrospective analysis of patients operated on due to a pathological lesion of the pancreas focused on diagnostics, operating procedures, postoperative complications, and long-term results. Between 1991 and 2016, eighty-nine children were treated in our department for a pathologic lesion of the pancreas. 39 of them were boys and 50 were girls., Results: Mean age of the patients was 9.3 years (1 month-18.4 years). Patients were followed from the operation to the age of 19, after which they were referred for follow-up to adult specialists. The indications for surgery were trauma in 34 children, solid pseudopapillary tumor in 23 children, biopsy in 10, hyperinsulinism in 8, chronic pancreatitis in 4, pancreatic cyst in 3, insulinoma in 3, carcinoma in 2, and serous cystadenoma and pancreas divisum in one patient. The most frequent procedures performed on the pancreas were distal pancreatectomy in 35 cases, the duodenum-preserving pancreatic head resection in 23 cases, pseudocystogastroanastomosis in 11 cases, 9095% pancreatic resection in 5 cases, Whipple operation in two cases, Puestow procedure in one case, tumor enucleation in one case, and tumor biopsy for cancer in one case. In 5 patients after major pancreatic injury, ERCP and papillotomy with insertion of a stent into the pancreatic duct was performed. 3 patients died, one after a polytrauma with severe pancreatic injury and two patients with pancreatic cancer., Conclusion: Pancreatic surgery in children is not a common operation, and individual as well as institutional experience remains limited. After more than 20 years of experience with pancreatic surgery, we believe that close cooperation with surgeons, pediatric gastroenterologists, radiologists, anesthesiologists, intensivist, pathologists and ERCP specialists is necessary for successful diagnosis and treatment of pancreatic disease in children.Key words: pancreas pancreatic surgery in children duodenum preserving head resection of the pancreas.

Alagille syndrome may mimic biliary atresia in early infancy. Since mutations in JAG1 typical for Alagille syndrome type 1 have also been found in biliary atresia, we aimed to identify JAG1 mutations in newborns with proven biliary atresia (n = 72). Five biliary atresia patients with cholestasis, one additional characteristic feature of Alagille syndrome and ambiguous liver histology were single heterozygotes for nonsense or frameshift mutations in JAG1. No mutations were found in the remaining 67 patients. All "biliary atresia" carriers of JAG1 null mutations developed typical Alagille syndrome at the age of three years. Our data do not support association of biliary atresia with JAG1 mutations, at least in Czech patients. Rapid testing for JAG1 mutations could prevent misdiagnosis of Alagille syndrome in early infancy and improve their outcome.