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The European Society for Paediatric Gastroenterology, Hepatology and Nutrition has experienced an amazing development in the 50 years of its existence. It grew from a small group of 36 friends who held an informal meeting with some 20 oral presentations to share and discuss their clinical and research work, to a large, multiprofessional society that sets widely recognized standards for clinical care and policy and hosts the world's largest congress of Paediatric Gastroenterology, Hepatology and Nutrition with more than 4500 delegates from 100 countries. However, the Society's mission has remained the same: to promote the health of children with special attention to the gastrointestinal tract, liver, and nutritional status, through knowledge creation, the dissemination of science based information, the promotion of best practice in the delivery of care and the provision of high-quality education. The European Society for Paediatric Gastroenterology Hepatology and Nutrition's success is based on the enthusiasm and engagement of its membership that contribute extensive volunteer work to support child health, while maintaining a positive spirit of collaboration and friendship, which characterises this Society. This article aims at describing recent developments and the current situation of the European Society for Paediatric Gastroenterology Hepatology and Nutrition.

The first Committee on Nutrition (CoN) was founded in 1974. Two years later nutrition (N) was added to the society's name, which then became ESPGAN. The Committee systematised compositional and quality criteria for breast milk substitutes and food for special medical purposes, the first of many examples on how recommendations and comments published by the Committees on Nutrition (CsoN) were adopted by the European Economic Community, later the European Union and also influenced the World Health Organization/Food and Agriculture Organization of the United Nations Codex standards. A second CoN focusing on preterm infants was established in 1979 and its recommendations on nutrition of these infants were widely implemented. The third and standing CoN, established 1986, started to organise high-quality symposia at the annual meetings appreciating the need to enhance the expertise in nutritional research. From 1991 the CoN has organised Summer Schools in paediatric nutrition for young colleagues further emphasising its educational interest and more recently an annual, more specialised Nutrition Masterclass. Successively the interest of the CoN has expanded to other areas, such as highlighting dilemmas and uncertainties in the field of nutrition including the design, choice of outcomes and statistical analysis of trials in infant nutrition. The work of the CsoN have had great impact on paediatric nutrition and the committee will continue its important role by writing commentaries and systematic reviews and revising guidelines when required to inform and stimulate discussion among colleagues as well as stimulate training in paediatric nutrition by organising workshops and scientific meetings, training courses, and other approaches, and by interaction with other expert groups.

This chapter is based on the memories of those who shaped the relationship between the European and the North American Societies for Pediatric Gastroenterology, Hepatology and Nutrition. The first joint meeting of the 2 Societies took place in Paris in 1978, followed by 1 in New York in 1985, 1 in Amsterdam in 1990, 1 in Houston in 1994, and the last one in Toulouse in 1998. The formation of the Federation of the International Societies for Pediatric Gastroenterology, Hepatology and Nutrition (FISPGHAN) preceded the First World Congress of all Societies, which took place in Boston in 2000. The success of this meeting was followed by world congresses in Paris in 2004, Iguassu in 2008, Taiwan in 2012, and Montreal in 2016. NASPGHAN and ESPGHAN jointly took on the direction of the Journal of Pediatric Gastroenterology and Nutrition in 1991. Communication between the 2 Societies is extremely active, with members participating in many joint projects.

Thirty-six founding members from Europe were present in 1968, when the European Society of Paediatric Gastroenterology (ESGA) had its first meeting in Paris. The aim was to create a forum for presentations and discussions of research activities in paediatric gastroenterology in Europe. At the second meeting of ESGA 1969 in Interlaken, an important landmark was set for all gastroenterologists in the world. In this conference, the first ever criteria for "the Diagnosis of Coeliac Disease" (CD) were established. In 1990, the revised criteria for the diagnosis of CD were published. After the introduction of new noninvasive techniques, like tissue transglutaminase 2-antibodies and the HLADQ2/HLADQ8 determinations in blood, "new" criteria for the diagnosis of CD were published in 2012 by the European society of Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN). Close collaboration of ESPGHAN and the North American Society of Paediatric Gastroenterology, Hepatology and Nutrition led to mutual meetings. The first combined meeting was 1978 in Paris, followed by meetings in New York, Amsterdam, Houston, and last in Toulouse. The first World Congress of Paediatric Gastroenterology took place in Boston 2000 followed by congresses in Paris, Iguazu, Taipeh, and Toronto. The creation of specialised committees (Nutrition Committees, GI-Committee, and Hepatology-Committee) enabled the society to elaborate numerous guidelines for standards in the diagnosis and treatment of diseases within the subspecialties. The Journal of Paediatric Gastroenterology and Nutrition, as organ of ESPGHAN and the North American Society of Paediatric Gastroenterology, Hepatology and Nutrition since 1991, serves as the voice for these worldwide accepted guidelines. Growing educational activities with summer schools, the Young Investigator Forum and the creation of working groups have distributed our current knowledge among the younger generation and led to fruitful reports, guidelines, and syllabus. In 1992, ESPGHAN was 1 of the founding 7 members of the United European Gastroenterology Federation (UEGF), which developed into a successful organisation for gastroenterology in Europe. This year we celebrate the 50th anniversary of ESPGHAN at our annual Meeting in Geneva.

The last 50 years have seen the establishment of paediatric gastroenterology, hepatology, and nutrition (PGHAN) as a well-recognised and thriving clinical specialty throughout most of Europe, and further afield. This has happened, in part, through the existence of the European Society for Paediatric Gastroenterology and Nutrition (ESPGHAN) as a forum for those interested in this branch of children's medicine. To illustrate the pan-European roots of PGHAN, some key scientific and medical events, discoveries, and inventions relevant to 3 common clinical problems-diarrhoea, jaundice, and infant-feeding-have been chosen to survey the historical development of the ways in which each was understood and treated within the changing thinking and practice of past times. Together they are used to trace the prehistory of ESPGHAN and provide a background against which to explain the genesis of the Society and how its spheres of clinical and scientific interest came to be defined.

The expression of hepatitis B and C virus infections in children differs from that in adults and requires specific paediatric expertise. The European Society of Pediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN) has been a pioneer in this field, having stressed the need for straightforward recommendations since the mid-1980s. Following much observation, surveillance, and research, a panel of ESPGHAN experts was able to develop such recommendations on hepatitis B infection in children in 2009, which was then followed in June 2013 by proper guidelines. In the field of Chronic Hepatitis C, in 2011 ESPGHAN experts published also the Guidance for Clinical Trials for Children and Adolescents, and approved in 2012 the NASPGHAN guidelines for treatment. The ESPGHAN Society is to be commended for its pioneering work in furthering our understanding of chronic hepatitis B and C disease presentations in infants, children, and adolescents.

Hepatology played an important role in ESPGAN from the beginning. In 1989, the Hepatology Committee was started. In the early 1990s H for hepatology was included in ESPGHAN. Hepatology Summer schools were held from 1995 and later monothematic conferences met the needs of many young ESPGHAN members. The role of ESPGHAN members in the progress of diagnostic and therapeutic measures in hepatitis B and C will be elucidated (Chapter 6.1) as well as the role of other ESPGHAN members in the understanding of immunological hepatic disorders of childhood (Chapter 6.2). During childhood, many metabolic hepatic disorders threaten the life and health of children making orchestrated measures in diagnostic and therapeutic efforts necessary (Chapter 6.3). The pathophysiology of cholestasis was cleared by the detection of bile salt transporters, which were identified by ESPGHAN members in the Netherlands, France, United Kingdom and Germany (Chapter 6.4). Finally liver transplantation for acute fulminant and chronic end stage liver disease was established as a meanwhile standard treatment option (Chapter 6.5). Immunosupression in liver transplantation was improved and standardized through the cooperation of many ESPGHAN member driven studies (Chapter 6.6).

Paediatric hepatology dates from the 1970s and it is the youngest of the organ-specific subspecialties. As then there have been impressive achievements in the fields of anatomical, metabolic, immunological and neoplastic diseases, and the advent of modern molecular biology has resulted in a marked increase in exact diagnoses. Liver transplants provided enormous stimulus for the discipline. Due to changing morbidity patterns, the discipline faces new challenges, such as environment- and lifestyle-induced liver diseases, but different forms of chronic viral hepatitis are diminishing., Conclusion: High levels of competence require good clinical research, optimal results and a high degree of centralisation., (©2017 Foundation Acta Paediatrica. Published by John Wiley & Sons Ltd.)

INTRODUCTION The professional practice of pediatric gastroenterology arose in Cuba as an expression of the specialty's development internationally and Cuba's new strategies in public health, and in response to national needs for health care expertise in digestive diseases of infants, older children and adolescents. OBJECTIVES Describe the history of pediatric gastroenterology's development in Cuba since its inception at the National Gastroenterology Institute in the early 1970s, its contributions, and efforts to extend it to pediatric hospitals throughout Cuba. EVIDENCE ACQUISITION This is a historical review based on document analysis. Institutional sources from the National Gastroenterology Institute and Ministry of Public Health were reviewed, as well as international and national literature on the history of pediatric gastroenterology and unpublished texts since its emergence in 1972. DEVELOPMENT Although pediatric gastroenterology has not been formally recognized as a medical specialty in Cuba, there have been important achievements in establishing a network of specialized health care services for digestive diseases of children and adolescents. Gastrointestinal endoscopy and other auxiliary diagnostic modalities have been introduced for children and play a major role in clinical trials and research. This article describes the international context that promoted the specialty's development in Cuba. Reference is made to specialized training from its initial stages in 1972, its consolidation as an emerging discipline in Cuban medicine, and its diffusion in Latin American and Caribbean countries. Professional development and specialized training to meet health human resource needs in pediatric hospitals are described, as well as Cuban participation in the Latin American Society for Pediatric Gastroenterology, Hepatology and Nutrition. National and international milestones, publications, awards and recognitions that indicate advances despite difficulties are also presented. CONCLUSIONS Since 1972, there have been major strides in the development of pediatric gastroenterology practice in Cuba. The establishment of a national network of specialized services in pediatric hospitals throughout Cuba has provided quality health care for digestive diseases of childhood. Pediatric gastroenterology's development and achievements in healthcare and research are such that it deserves official recognition as a medical specialty Cuba. KEYWORDS Pediatric gastroenterology, history of medicine, national health system, service network, hepatology, children, adolescents, Cuba.

The Pediatric Gastroenterology and Nutrition in Peru, is one of the subspecialties of Pediatrics that has experienced one of the most significant growth in recent decades, however, to achieve this seat it should have passed a long way built through the efforts and talent hundreds of doctors for several generations. Its modern history began in 1981 with the creation of the first unit of the specialty in the National Institute of Child Health (INSN), followed by the establishment of the second specialization that contributed to its spread and progress of several hospitals in the country, and many of them now have a doctor of this specialty. Our purpose is to plant the foundations of that story, whose extension go beyond the space that allows us an article.

Several major forces converged to catalyze the formal emergence of a body of knowledge and an organized focus on disorders of the liver in early life. Attendant to the development of a focused clinical subspecialty the pace of patient- and laboratory-based research in the field quickened in parallel to decipher the consequences of genetic or metabolic aberrations on immature liver structure and function. The key research observations that catalyzed the emergence and subsequent rapid growth of Pediatric Hepatology include: (1) an understanding of the dynamic events occurring during hepatobiliary development and the importance of these physiologic variables that occur during liver maturation; (2) the recognition of the unique nature of inherited and acquired liver diseases that affect infants and children-such as biliary atresia and Reye's syndrome; and (3) redefinition of the once obscure inherited intrahepatic cholestatic diseases of the liver, which, in turn, provided insight into normal and abnormal hepatobiliary physiology. The clinical advances were highlighted by the development of specific approaches to the diagnosis and management of liver disease in infants and children, including both liver transplantation and nontransplant treatment options. These seminal events led to the expansion of the workforce, creating a critical mass consisting of individuals with focused, specialized skills and techniques. In-depth expertise allowed more accurate diagnosis and highly effective treatment strategies for advanced hepatobiliary disease in children. The demand for pediatric clinicians with experience in advanced hepatology allowed sub-sub-specialization to flourish. Continued maturation of the field led to definition of hepatology-focused curricular elements and educational content for Pediatric Gastroenterology training programs, and subsequently the development of program requirements for those who wished to acquire additional training in Pediatric Hepatology. A significant rite of passage was marked by the election of pediatric hepatologists to leadership positions in the American Association for the Study of Liver Diseases (AASLD). Further validation of the field occurred with approval of the petition for establishing a Certificate of Added Qualification in Transplant Hepatology by the American Board of Pediatrics. Here I relate my perspective on the history of the advances in our field and the contributions of many of the clinicians and scientists whose efforts led to the development of focused clinical, research, and training programs that improved the care of children with diseases of the liver., (Copyright © 2013 by the American Association for the Study of Liver Diseases.)