[Relation between adverse childhood experiences and problematic alcohol consumption in adulthood]. / Az ártalmas gyermekkori élmények és a felnottkori alkoholfüggoség közötti összefüggések.

Alcohol use disorder and its consequences are a major public health problem not only worldwide, but in Hungary as well. The problem is aggravated by the low rate of admission to treatment, and by the high dropout rate of the treatment prior to its completion date. The relapse rate is also high, up to more than half of the patients are not able to maintain their abstinence following the first few months after their treatment. Although most patients enrolling in the addiction care system are over the age of 35, the causes of alcohol use disorder often stem from early childhood experiences. Long-term traumas in early childhood are significantly associated with somatic and mental health problems later in life such as substance use, including alcohol dependence. The article begins with reviewing the prevalence of alcohol dependence and defining childhood maltreatment and adverse childhood experiences, then discusses the effects and mechanisms of adverse childhood experiences in light of the development of alcohol use disorders in adults and their low treatment rates. The article also aims to raise awareness of the importance of trauma-focused thinking and trauma-informed approaches in the healthcare system and in planning addiction interventions and services. Orv Hetil. 2023; 164(41): 1628-1636.

[Sensory food aversion in the context of a modern approach to eating disorders in early childhood]. / A szenzoros ételelutasítás a kora gyermekkori evészavarok korszeru megközelítésének tükrében.

Sensory food aversion, an early childhood eating disorder, is a serious, permanent form of picky eating, in which the infant or the child consistently and persistently refuses certain foods based on specific characteristics, following one or more previous aversive experiences. Biological (sensory processing disorder, taste sensitivity) and environmental factors contribute to its development. Due to limited diet, specific dietary deficiencies may occur but weight gain is usually normal. Behavioral problems, anxiety disorder, autism spectrum disorder are often associated. Diagnosis can usually be made based on a detailed history, but further assessment may include pediatric examination, nutritionist consultation, and psychologic and occupational therapy assessment. Treatment is based on parent education and support in order to minimize mealtime battles and anxiety and to think together about strategies for expanding the child's diet and to help them to accept new foods. As part of the interdisciplinary team, the pediatrician's role is to monitor appropriate growth and development, exclude dietary deficiencies or prescribe supplementation if necessary. In our article, the screening and treatment of sensory processing disorder as part of the assessment of eating problems are introduced as an example of good clinical practice at the Early Childhood Eating and Sleep Disorder Outpatient Clinic at the Heim Pál National Institute of Pediatrics. Orv Hetil. 2023; 164(45): 1767-1777.

[The impact of adverse childhood experiences on mental and somatic health in childhood and adolescence]. / Az ártalmas gyermekkori élmények hatása a mentális és szomatikus egészségre gyermek- és serdülokorban.

Multiple studies prove that children who were exposed to adverse childhood experiences within their families are increasingly at risk of various high-risk behaviours, bullying, mental and somatic disorders. In children/adolescents who undergo terrifying experiences on a repetitive, sometimes daily basis without being provided support and the basic safety they would need, all aspects of personality development will be seriously affected. Urgent action is needed in Hungary to identify these children and provide them with therapeutic support. The field of childhood adversities and their consequences has been undeservedly neglected by research, despite the fact that preventive and therapeutic interventions could be specifically designed based on this knowledge during childhood and adolescence. In our study, we present international data on the prevalence of adverse childhood experiences. We discuss in detail the association of adverse childhood experiences with biological and cognitive impairments attachment disorders, externalising and internalising disorders, somatic disorders and health risk behaviours in childhood and adolescence. Besides presenting empirical data on adverse experiences and consequences, the purpose of our publication is to raise awareness and sensitisation among professionals. Orv Hetil. 2023; 164(37): 1447-1455.

[The impact of district nurses in screening visual impairments]. / A védonok szerepe a gyermekkori látásproblémák felismerésében.

INTRODUCTION: The children's physical and mental health is determinative for the whole society. Parents, teachers, district nurses, and doctors share the duty to ensure their uninterrupted visual development. District nurses compose key elements in connecting families and health care providers, since they have the chance to detect any visual anomalies, and to refer the children to a pediatrician, ophthalmologist, or a neurologist. Their team work yields advantages to the whole community as beyond preserving good vision, children get a real chance of right physical and mental development. OBJECTIVE: Our aim was to recollect district nurses' areas of activity and to collect data about their present status in visual screening programs. Furthermore, to assess their screening methods and circumstances, and to reshape their continuous learning programs linked to the universities. METHOD: Questionnaires were sent online anonymously to district nurses in practice, in order to collect data referring to their focuses during the visual screening methods. Administration of online parental tutorials was assessed, and measures of professional support in nurses' education was debated. RESULTS: Visual screening among infants looks for potential strabismus, and among school-age children looks for potential refractive errors. Vision tests and stereo tests are usually available as screening tools, but pen lights are underused. Only a few nurses suggest online tutorials to enhance patient education, but nurses are highly motivated in postgraduate courses about vision screening. CONCLUSION: Our results reflect good adherence to the screening protocols but there is some uncertainty in some fields. In harmony with the results, adequate technical and educational support and specific training were compiled for postgraduate district nurses. Coaching and training in visual screening (in the form of seminars or e-learning) should be available in spring 2023. Orv Hetil. 2023; 164(3): 88-95.

The role of the school health care system in the prevention of childhood obesity - lessons of a pilot study / Az iskola-egészségügyi ellátórendszer szerepe a gyermekkori elhízás prevenciójában - egy pilotvizsgálat tanulságai

Childhood obesity is a growing problem with public health significance, so effective prevention is in our public inter-est. Specialists in the school health care system are of paramount importance in the prevention of childhood obesity. In the present study, the institutional framework of the Hungarian school health care system, the scope of tasks and competencies of the professionals, and the recommendations of the World Health Organization in relation to the prevention of obesity are reviewed. On the other hand, we interviewed three school doctors and a school nurse. The interviews showed that although their workload is high and their capacity is finite, in addition to their fixed tasks (such as regular physical examinations and screening of overweight students, grouping of physical education classes, public health tasks), these professionals implement sensitive care for overweight students, support for weight control, often in collaboration with school management. With their creative solutions, exemplary behavior and forward -looking proposals, they highlight the intervention points for optimizing the operation of the school health care sys-tem, with an emphasis on the role of health policy makers.

Biological therapy of uveitis in children / A biológiai terápia helye a gyermekkori uveitis ellátásában

Introduction: Biological therapy can be used in uveitis in children since 2016. With ophthalmological indication only adalimumab therapy can be started. Adalimumab is a monoclonal antibody that inhibits tumor necrosis factor alpha.Objective: To summarize our experience with patients receiving adalimumab for pediatric non-infectious uveitis.Patients and methods: We investigated our juvenile patients of non-infectious uveitis treated with adalimumab be-tween 2017 and 2021 in a retrospective case series at the Department of Ophthalmology, Szeged University. Results: Between 01 January, 2017 and 31 May, 2021, we examined 46 children with uveitis. The mean age of these 23 girls and 23 boys was 11 years. 21 of them had juvenile idiopathic arthritis, 14 had infectious uveitis, 3 had hae-matological disorders, 8 had idiopathic uveitis. Adalimumab was given to 11 patients because of severe, chronic uveitis. There were 3 boys and 8 girls, their mean age was 10 years. Adalimumab was given according to the licence of the European Medicines Agency. Indication was anterior uveitis at 6 children, panuveitis at 5 children. Adali-mumab can be given to children over 2 years, who have chronic, non-infectious, anterior uveitis. Children with panuveitis received the therapy by the help of a pediatric rheumatologist.Conclusion: The significance of pediatric uveitis and its therapy is emergent. Our aim was to preserve vision and de-crease the possibilities of side effects and to provide a better life for these uveitic children. Early diagnosis, adequate therapy and regular ophthalmological check-ups are important. Children treated with adalimumab have good visual acuity due to the effectiveness of the therapy. No new ocular side effect was detected at the children treated with adalimumab.

Out-of-hospital pediatric sudden cardiac arrest and inherited arrhythmia syndromes in Hungary. / Gyermekkori, kórházon kívüli hirtelen szívmegállás és öröklodo arrhythmiaszindrómák Magyarországon.

Összefoglaló. Bevezetés: A gyermekkori hirtelen szívmegállás ritka, de egy részük megelozheto lehetne. Célkituzés: Vizsgálatunk célja az volt, hogy a Magyarországon eloforduló, kórházon kívüli gyermekkori szívmegállás gyakoriságát és hátterében az öröklodo arrhythmiaszindrómák jelentoségét megbecsüljük. Módszer: Három megközelítést alkalmaztunk. Elemeztük 1) az Országos Mentoszolgálat 2012. január 1. és 2015. június 30. közötti eseteinek Utstein-adatlapjait, 2) az Országos Gyermekszív Központba hirtelen szívmegállás miatt 2000. január 1. és 2021. augusztus 11. között felvett, valamint 3) az öröklött arrhythmiaszindróma gyanúja miatt 2015. október 1. és 2021. augusztus 11. között gondozásba vett gyermekek adatait. Eredmények: 1) A vizsgált 3,5 év alatt 373 gyermekkori keringésmegálláshoz riasztották a mentoket. Az Utstein-adatlapok alapján vélhetoen 84 esetben (≈24/év) állhatott cardialis ok a háttérben. A reanimáció az esetek 20%-ában volt sikeres. 2) A vizsgált közel 21 évben 24 gyermek (≈1/év) került felvételre elozmény nélküli hirtelen szívmegállást követoen a tercier országos központba. Hátterükben 11/24 (46%) esetben öröklött arrhythmiaszindróma, 4/24 (16%) esetben strukturális szívbetegség igazolódott. 9/24 (38%) esetben az ok nem volt tisztázható. 3) A vizsgált közel 6 évben 73 gyermeknél (≈12/év) történt genetikai vizsgálat öröklodo arrhythmiaszindróma gyanúja miatt: tünetek nélküli kóros EKG: n = 23, családszurés: n = 21, syncope: n = 15, sikeres újraélesztést követoen: n = 14. Egyértelmu patológiás mutáció 29 (≈5/év), ismeretlen jelentoségu variáns 15 esetben igazolódott. Következtetés: Az Országos Mentoszolgálat adatai alapján Magyarországon évente kb. 20-25 gyermeknél következik be kórházon kívüli hirtelen szívmegállás. Ezen esetek körülbelül egyötödében sikeres az újraélesztés, és a túlélo betegek egyötöde gyógyul súlyos szövodmények, neurológiai károsodás nélkül és kerül az Országos Gyermekszív Központba további ellátásra (a gyermekkori szívmegállások 5%-a). Ezen betegek közel felénél utólag öröklött arrhythmiaszindróma igazolható. Öröklodo arrhythmiaszindróma miatt az országos központban gondozásba kerülo gyermekek egyötödét ismerik fel hirtelen szívmegállást követoen. Orv Hetil. 2022; 163(12): 473-477. INTRODUCTION: The incidence of pediatric out-of-hospital sudden cardiac arrest is low, but a part of them could be preventable. OBJECTIVE: Aim of our study was to assess the pediatric cardiac arrest in Hungary and the magnitude of inherited cardiac arrhythmias in the background. METHOD: Three methods were used. 1) Utstein data sheets of the National Ambulance Service between 01. 01. 2012 and 30. 06. 2015. 2) Records of admissions to the national tertiary pediatric heart centre, due to out-of-hospital pediatric sudden cardiac arrest between 01. 01. 2000 - 11. 08. 2021. and 3) Results of genetic testing in patients with suspicion of inherited arrhythmia syndromes between 01. 10. 2015 - 11. 08. 2021 were analysed retrospectively. RESULTS: 1) Ambulance was called to 373 paediatric cardiac arrests during the study period of 3.5 years. Primary cardiac origin was presumed in 84 cases (≈24/year) on the basis of Utstein data sheets. Reanimation was successful in 20%. 2) 24 children (≈1/year) were admitted to the national pediatric heart centre after out-of-hospital sudden cardiac arrest during the study period of 21 years. Inherited arrhythmia syndromes in 11/24 (46%), structural heart disease in 4/24 (16%) cases could be identified, but etiology remained unclear in the rest 9/24 (38%). 3) Suspicion of inherited arrhythmia syndrome emerged in 73 children in 6 years of the study (≈12/year) and it was based on pathological ECG: n = 23, family screening: n = 21, syncope: n = 15, successful reanimation: n = 14. Genetic testing revealed pathological variation in 29 cases (≈5/year), variant of unknown significance in 15 cases. CONCLUSION: 20-25 children have out-of-hospital cardiac arrest annually in Hungary based on data from the National Ambulance Service. Reanimation is successful in one fifth of the cases. One fifth of these surviving children had no severe complications and neurological deficit and they were admitted to the national pediatric heart centre for further diagnosis and treatment (5% of pediatric cardiac arrest). Inherited arrhythmia syndrome could be identified in the background in half of these admissions. One fifth of children checked up and followed for inherited arrhythmia syndrome in the national centre were diagnosed after sudden cardiac arrest. Orv Hetil. 2022; 163(12): 473-477.

Pediatric adrenocortical adenoma presenting with Cushing's syndrome / Cushing-szindrómát okozó gyermekkori mellékvesekéreg-adenoma

Összefoglaló. A gyermekkorban kialakuló Cushing-szindróma ritka betegség, a leggyakrabban exogén szteroidadás következményeként jelentkezik. A daganatos betegségek közül a hypophysis kortikotropint szekretáló adenomája, illetve a mellékvesekéreg-tumorok okoznak a leggyakrabban Cushing-szindrómát. Jelen tanulmányunkban egy Cushing-szindrómával diagnosztizált fiú esetét mutatjuk be. Az endokrinológiai kivizsgálás adrenokortikotropin (ACTH)-independens hypercortisolismust támasztott alá. A hasi MRI-felvételen egy éles határral rendelkezo, 3,5 cm nagyságú terime ábrázolódott a jobb mellékvese-régióban. A tumort parciális mellékvese-eltávolítás során távolították el. A szövettani elemzés mellékvesekéreg-adenomát igazolt. A gyermek klinikailag és laborértékei alapján gyógyultnak tekintheto. A Cushing-szindrómával kezelt betegek hosszú távú nyomon követése szükséges, melynek során szükség szerint biztosítani kell a glükokortikoidok és az egyéb szteroidhormonok megfelelo pótlását, a kialakult szövodmények kezelését, és adott esetben idoben fel kell ismerni a Cushing-szindróma késoi relapsusát is. Orv Hetil. 2022; 163(10): 407-412. Summary. Cushing's syndrome (CS) in children is a rare disease, most frequently caused by either an adrenal tumor or a corticotropin-secreting pituitary adenoma. Its early detection and effective treatment are highly important to avoid the short- and long-term consequences of hypercortisolism. We report a case of a child with Cushing's syndrome resulting from an adrenocortical adenoma. Endocrinological data revealed adrenocorticotropin (ACTH) independent hypercortisolism. MRI scan of the adrenal glands showed a single, well-encapsulated tumor on the right adrenal gland with a diameter of 3.5 cm. Adrenal gland sparing surgery was performed with total excision of the tumor. The histological analysis confirmed the diagnosis of adrenal adenoma. The child was cured clinically and biochemically. The long-term follow-up of patients treated for Cushing's syndrome should include the adequate replacement of glucocorticoids and other steroid hormones, treatment of osteoporosis and other pathologic effects of hypercortisolism and long-term screening for the relapse of Cushing's syndrome. Orv Hetil. 2022; 163(10): 407-412.

Importance of donor-specific antibodies in the long-term outcome of liver-transplanted children / A donorspecifikus antitestek szerepének vizsgálata a gyermekkori májtranszplantációk hosszú távú kimenetelében.

Összefoglaló. Bevezetés: A gyermekkori májtranszplantációk hosszú távú kimenetelének javítása érdekében az immunológiai mechanizmusok kerültek a kutatások középpontjába. A donorspecifikus antitesteknek (DSA-k) fontos szerepük van a graft túlélésében a szervtranszplantációk után, a májtranszplantáció esetén azonban ez még vitatott. Célkituzés: Tanulmányunk célja májtranszplantált gyermekeknél a DSA-k meghatározása, valamint a DSA-k jelenléte és a graft állapota közötti összefüggés vizsgálata volt. Módszer: A Semmelweis Egyetem I. Sz. Gyermekgyógyászati Klinikáján gondozott 54 májtranszplantált gyermek vérmintájából történt a humán leukocytaantigén (HLA) elleni antitestek meghatározása. Vizsgáltuk, hogy a laboratóriumi vérvizsgálat eredményei - szérumbilirubin (összes, direkt), alkalikus foszfatáz (ALP), transzaminázok, gamma-glutamil-transzferáz (GGT), immunglobulin-G (IgG) -, az aszpartát-aminotranszferáz/thrombocyta hányadosindex (APRI) és a 4 tényezon alapuló fibrosisindex (FIB4) tekintetében van-e eltérés a DSA-pozitív, illetve a HLA-immunizált betegek esetén a nem immunizált csoporthoz képest. Eredmények: A vizsgált paraméterekben nem találtunk szignifikáns különbségeket a DSA-pozitív, a HLA-immunizált és a nem immunizált betegek csoportjai között. Következtetés: Bár a jelen vizsgálatban nem volt szignifikáns különbség a vizsgált paraméterek esetén, de ez a kis esetszámból is adódhat. A DSA-knak a graftfibrosis kialakulásában való szerepe tisztázására több páciens vizsgálata szükséges, ezért megkezdtük az összes páciensnél a DSA- és HLA- (donor, recipiens) meghatározást, valamint ennek a klinikai gyakorlatunkba való beépítését. Orv Hetil. 2021; 162(47): 1897-1901. INTRODUCTION: To improve the long-term survival of liver-transplanted children, immunological mechanisms became the main interest of researchers. Donor-specific antibodies (DSAs) play a significant role in graft survival after solid organ transplantation, although their role in liver transplantation is controversial. OBJECTIVE: The aim of our study was to determine the presence of DSAs in liver-transplanted children and to examine their effect on graft's condition. METHOD: The determination of anti-human leukocyte antigen (HLA) antibodies was performed using the blood samples of 54 liver-transplanted children. We analysed the difference between the results of the laboratory blood examination - serum bilirubin (all, direct), alkaline-phosphatase (ALP), transaminases, gamma-glutamyl transferase (GGT), immunoglobulin-G (IgG) -, aspartate aminotransferase to platelet ratio index (APRI) and fibrosis-4 index (FIB4) according to DSA and HLA immunization. RESULTS: We did not find any significant difference in the examined parameters regarding DSA and HLA immunization. CONCLUSION: Although this study was not able to provide significant difference in the examined parameters, this can be explained with the low number of cases. To clarify the significance of DSA in graft fibrosis, we need a larger dataset. We started regular DSA and HLA (donor and recipient) determination during follow-up in liver-transplanted children. Orv Hetil. 2021; 162(47): 1897-1901.

SARS-CoV-2-associated inflammatory multisystem disease in a 15-year-old boy / SARS-CoV-2-fertozéshez társuló többszervi megbetegedés 15 éves fiúban.

Összefoglaló. Újabb megfigyelések szerint a SARS-CoV-2-fertozést követoen gyermekekben a paediatric inflammatory multisystem syndrome (PIMS) elnevezésu, sokkállapottal szövodött Kawasaki-megbetegedéshez hasonlító, többszervi elégtelenségnek megfelelo tünetegyüttes alakulhat ki. A gyermekek többségében ilyenkor a direkt víruskimutatás már sikertelen, azonban a SARS-CoV-2 ellen képzodött antitest igazolhatja a diagnózist. Dolgozatunk célja az egyik elso hazai eset ismertetése. Egy 15 éves fiú került gyermek intenzív osztályos felvételre több napon át észlelt magas láz, kesztyu-, zokniszeru exanthema, conjunctivitis, többszervi elégtelenség, szeptikus sokk tüneteivel, akut gyulladásra utaló laboratóriumi eltérésekkel és diffúz hasi panaszokkal. Felvételét megelozoen néhány héttel SARS-CoV-2-fertozésen esett át. Felvételekor a direkt víruskimutatás sikertelen volt, ám a SARS-CoV-2 elleni antitest vizsgálata pozitív lett. Komplex intenzív terápia mellett állapota stabilizálódott. Az irodalmi ajánlásoknak megfeleloen immunglobulin-, acetilszalicilsav- és szteroidkezelésben részesítettük, melynek hatására állapota maradványtünetek nélkül rendezodött. A növekvo esetszámú gyermekkori SARS-CoV-2-fertozés mellett egyre gyakrabban várható a SARS-CoV-2-fertozést követo, a Kawasaki-betegség tüneteire emlékezteto PIMS kialakulása. Gyermekekben súlyos szeptikus állapot és többszervi elégtelenség esetén gondolni kell a PIMS lehetoségére, mely esetenként intenzív osztályos ellátást és célzott terápiát igényel. Legjobb tudomásunk szerint a leírásra került beteg a Magyarországon diagnosztizált egyik legkorábbi eset. Orv Hetil. 2021; 162(16): 602-607. Summary. Recently following SARS-CoV-2 infection, a new, multisystem disease (paediatric inflammatory multisystem syndrome, PIMS) with fever was recognized in children with shock and multiorgan failure. On of the first Hungarian cases will be described. A 15-year-old boy was admitted to the Paediatric Intensive Care Unit with persistent high fever, diffuse abdominal pain, septic shock, multiple organ failure, gloves- and socks-shaped cutan exanthema, conjunctivitis and laboratory signs of inflammation. Some weeks preceding his admission, symptoms of mild SARS-CoV-2 infection were revealed. At admission, the SARS-CoV-2 PCR and antigen tests were negative, however, the presence of IgG antibody was shown. Following complex supportive intensive care along with internationally recommended immunoglobulin, aspirin and steroid treatment, the patient was completely cured without any sequalae. In children after SARS-CoV-2 infection, PIMS could occur mimicking Kawasaki syndrome. At this time, in children virus PCR or antigen tests are usually negative already, but the presence of SARS-CoV-2 antibody could prove the preceding disease. Due to the increasing number of SARS-CoV-2 infections, the occurrence of post-SARS-CoV-2 PIMS in childhood is expected to increase. For paediatric patients, in case of severe septic state and multiple organ failure, PIMS should be also considered, which may require intensive care and targeted therapy. As far as we know, the described case is one of the earliest cases of PIMS in Hungary. Orv Hetil. 2021; 162(16): 602-607.

Environmental factors and epidemiology of childhood type 1 diabetes / Környezeti hatások a gyermekkori kezdetu, 1-es típusú diabetes epidemiológiai változásainak hátterében.

Összefoglaló. A Nemzetközi Diabetes Szövetség (International Diabetes Federation, IDF) legutóbbi becslése szerint napjainkban több mint 600 000, 15 év alatti 1-es típusú cukorbeteg gyermek él a világon, az új esetek száma pedig évi 98 200-ra teheto. Az elmúlt évtizedekben az 1-es típusú diabetes incidenciája világszerte jelentosen nott ebben a korosztályban: Európában az 1989 és 2013 közötti periódusban átlagosan évi 3,4%-kal, ami 20 éven belül a betegek számának duplázódását vetíti elore a kontinensen. Az epidemiológiai vizsgálatok kezdete óta nyilvánvaló, hogy a gyermekkori kezdetu, 1-es típusú diabetes elofordulási gyakorisága széles határok között ingadozik, amit egyaránt befolyásolnak geográfiai és klímaviszonyok, etnikai és demográfiai hatások. Bár az 1-es típusú cukorbetegség kialakulása során az autoimmunitás primer kockázati tényezoje a genetikai háttér, mégsem a genetikai terheltség populációszintu fokozódása okozza az incidencia robbanásszeru növekedését, hanem a környezeti tényezoknek a betegség penetranciáját megváltoztató hatása. A környezeti hatások oki tényezokként, akcelerátorokként és védofaktorokként is hozzájárulhatnak mindehhez, sot akár a betegség patogenezisében egyszerre több ponton, több mechanizmussal is részt vehetnek. Ugyanakkor a nemzetközi kutatások ellenére a legnépszerubb háttérelméletek (például vírusinfekció, higiéniahipotézis, bélmikrobiom, átereszto bél, D-vitamin-hiány) máig nem szolgálnak kielégíto magyarázattal az epidemiológiai észlelések többségére (például földrajzi régiónként jelentosen eltéro incidenciaértékek, geográfiai "forrópontok", az új esetek megjelenésének szezonális ingadozása, az incidenciacsúcsok ciklicitása). Összefoglalónk célja a gyermekkori 1-es típusú diabetes epidemiológiájára vonatkozó aktuális adatok és háttérelméletek áttekintése. Orv Hetil. 2021; 162(1): 13-22. Summary. According to the latest report of the IDF (International Diabetes Federation), more than 600 000 children under the age of 15 years are living with type 1 diabetes in the world and the number of new cases is estimated to be 98 200 annually. In recent decades, a significant increase in the incidence has been observed globally: during 1989-2013, the annual rate of increase was 3.4% in Europe, suggesting a doubling in the number of patients within approximately 20 years on the continent. The wide variation in incidence has been well documented by epidemiological studies and influenced by geographical and climatic conditions, ethnic and demographic factors. Although the genetic background is the primary risk factor for beta-cell autoimmunity, such dynamic changes in incidence are more likely to be associated with the higher environmental pressure than the increase in genetic load at population level. Environmental factors can also contribute to the pathogenesis of type 1 diabetes as accelerators, causal or protective factors, moreover may even be involved at several points and with several mechanisms at the same time. However, despite the extensive international research on environmental factors, the most popular hypotheses associated with them (e.g., virus infections, hygiene hypothesis, intestinal microbiota, leaky gut, lack of vitamin D) have not yet provided a satisfactory explanation for most epidemiological observations (e.g., geographically significant variability of incidence rates, geographical "hotspots", seasonal fluctuations in new cases, cyclical trends of incidence peaks). In this article, recent data and hypotheses about the epidemiology of childhood type 1 diabetes are summarized. Orv Hetil. 2021; 162(1): 13-22.

[Etiological factors of sensorineural hearing loss in children after cochlear implantation]. / Halláscsökkenést okozó etiológiai tényezok cochlearis implantáción átesett gyermekekben.

Introduction: Congenital sensorineural hearing loss is one of the most common sensory defects affecting 1-3 children per 1000 newborns. There are a lot of causes which result in congenital hearing loss, the most common is the genetic origin, but infection, cochlear malformation or other acquired causes can be reasons as well. Aim: The aim of this study was to establish the etiological factors of congenital profound sensorineural hearing loss in children who underwent cochlear implantation. Results: Our results show that the origin of the hearing loss was discovered in 62.9% of our patients. The most common etiological factor was the c.35delG mutation of the gap junction protein ß-2 gene, the allele frequency was 38.7% in our cohort. Infection constituted to 10.1%, and meningitis and cytomegalovirus infection were the second most common cause. 79.9% of our patients received sufficient hearing rehabilitation before the end of the speech development's period (6 years old), but 11.2% of our cases were still diagnosed late. Conclusions: Based on our data we can state that genetic evaluation is crucial in the diagnostic process of congenital profound sensorineural hearing loss. Sufficient hearing rehabilitation affects the whole life of the child, and by late cochlear implantation the speech development falls behind. We can decrease the ratio of the late implantation with the new protocol of newborn hearing screening, and with sufficient information provided to the colleagues, so the children may be referred to the proper center for rehabilitation without delay. Orv Hetil. 2019; 160(21): 822-828.

[Foreign body aspiration of the lower airways in children - diagnosis in clinical practice]. / A gyermekkori alsó légúti idegentest-aspiráció diagnosztikája a klinikai gyakorlatban.

INTRODUCTION AND AIM: Rigid bronchoscopic foreign body removal is the gold standard procedure for foreign body aspiration. We have analysed our results of bronchoscopies and the accuracy of diagnosis among the paediatric population in Southeast Hungary. METHOD: A retrospective study of children admitted because of suspected solid foreign body aspiration between 2006 and 2017 was performed. RESULTS: From among 220 admitted patients, 86 were suspected of solid particle aspiration. Presenting history was certain in 68.6% (n = 59/86). Sudden choking-like symptoms were present in 61/86 patients (70.9%), coughing in 81/86 patients (94.2%). Thoracic auscultation was positive in 67/86 cases (77.9%), chest X-ray in 75/86 patients (87.2%), while fluoroscopy only in 12/75 cases (16%). 92 bronchoscopies in 86 patients were performed. In 57 bronchoscopies, solid foreign body was found (66.2%) and the removal was successful in 56 cases. Thoracic auscultation was negative in patients with foreign body only in 6/57 cases (10.5%). In the same group, chest X-ray was negative in 33/57 cases (57.9%) and fluoroscopy was positive only in 12/57 patients (21.1%). Pneumonia or prolonged bronchitis was present in 4/86 patients (4.6%). Severe bronchial bleeding occurred in 2/86 cases (2.3%). Mortality was 1.2%, a child with severe co-morbidity and chronic aspiration passed away. Bronchoscopy was negative in 29/86 patients (33.7%). Complications were significantly higher in chronic cases than in the acute ones. CONCLUSION: Rigid bronchoscopy is indicated if solid foreign body aspiration is suspected and positive anamnesis, typical symptoms (coughing, choking) or positive chest auscultations are present. Diagnosis predominantly based on radiological finding is controversial due to the high possibility of false negative results. Early intervention within the first 24 hours is recommended to avoid complications. Orv Hetil. 2018; 159(51): 2162-2166.

[Solid organ transplantation in childhood]. / Szervtranszplantáció gyermekkorban.

Paediatric organ transplantation today is considered and accepted and widely available therapy in children with end-stage organ failure. It is important to know that in childhood, diseases leading to end-stage organ failure differ from those in adults. Beside this, in children there are different surgical and paediatric challenges before and after transplantation (size differences of the patient and donor organ, special and paediatric infections, different pharmacokinetics and pharmacodynamics of immunosuppressive drugs, noncompliance). However, paediatric organ transplantation in the last decades became a success story of the Hungarian health care owing to several working groups in Hungary and outside the country. Orv Hetil. 2018; 159(46): 1948-1956.

[Novelties in the treatment of pediatric immune thrombocytopenia - 2017]. / Újdonságok a gyermekkori immunthrombocytopenia kezelésében ­ 2017.

Immune thrombocitopenia in children is a very variable disease. International recommendations give therapeutic possibilities without strong protocols. In 2011, a therapeutic algorithm was published based on Hungarian practice. Recently, new innovative drugs have been available even in Hungary, so there is a need for modification of the therapeutic protocols. In this summary we give an overview about the current up-to-date management. In infancy and in childhood, high-dose immunglobulin treatment is recommended henceforward. In older children an alternative can be steroid therapy (pulses or long-term low-dose treatment). In resistant cases, a new thrombopoetin receptor stimulant, eltrombopag can be administered. This drug is registered in Hungary, and can very effectively influence the prognosis. Splenectomy is very rare nowadays in children. Immune thrombocytopenia is an unpredictable disease. Cure rate is about 70-80% of the cases, but management of the patients needs special care and specialist. Orv Hetil. 2017; 158(48): 1891-1896.

[Childhood traumatization, dissociation and nonsuicidal self-injurious behavior in borderline personality disorder]. / Gyermekkori traumatizáció, disszociáció és szándékos fizikai önsérto viselkedés borderline személyiségzavarban.

INTRODUCTION: Childhood traumatization plays a significant role in the etiology of borderline personality disorder. Studies found a significant association between childhood traumatization, dissociation, and nonsuicidal self-injurious behavior. AIM: The aim of our study was to assess dissociation and nonsuicidal self-injury among borderline inpatients and to reveal the association between childhood traumatization, dissociation, and self-injurious behavior. METHOD: The sample consisted of 80 borderline inpatients and 73 depressed control patients. Childhood traumatization, dissociation and self-injurious behavior were assessed by questionnaires. RESULTS: Borderline patients reported severe and multiplex childhood traumatization. Cumulative trauma score and sexual abuse were the strongest predictors of dissociation. Furthermore, we have found that cumulative trauma score and dissociation were highly predictive of self-injurious behavior. CONCLUSION: Our results suggest that self-injurious behavior and dissociation in borderline patients can be regarded as indicators of childhood traumatization. Orv Hetil. 2017; 158(19): 740-747.

[Pediatric hearing rehabilitation with the Baha® Attract implant system]. / Fiatalkori hallásrehabilitáció Baha® Attract implantátumrendszerrel.

INTRODUCTION: Baha® Attract is a new transcutaneous bone-conduction hearing aid, which is more preferable in childhood than the conventional percutaneous systems. AIM: Our aim was to demonstrate the possibilities of application in childhood. METHOD: Eight children have undergone surgeries (mean age of 13.2 ± 3.2 years; "posterosuperior" incision technique, 5 mm implants). The thickness of the skull bone was determined in 72 children (1-8 years old) at the recommended implant site, based on CT scans. RESULTS: The average duration of surgeries was 30 minutes. There were no intra- and postoperative complications observed. Sound processors were fitted at the postoperative 4th week. Hearing measurements proved 51.58±11.22SD dBHL gain in warble tone thresholds, and 43.3 ± 16.02 SD dB in speech discrimination thresholds. The skull bone thickness was measured as 3.39 ± 1.05 SD mm. CONCLUSION: The Baha Attract system is a new tool for hearing rehabilitation in pediatric population. Preoperative CT provides valuable knowledge about skull bone thickness. Orv. Hetil., 2017, 158(8), 304-310.

[Pediatric pancreatitis. Evidence based management guidelines of the Hungarian Pancreatic Study Group]. / Gyermekkori pancreatitis. A Magyar Hasnyálmirigy Munkacsoport bizonyítékon alapuló kezelési irányelvei.

Pediatric pancreatitis is a rare disease with variable etiology. In the past 10-15 years the incidence of pediatric pancreatitis has been increased. The management of pediatric pancreatitis requires up-to-date and evidence based management guidelines. The Hungarian Pancreatic Study Group proposed to prepare an evidence based guideline based on the available international guidelines and evidences. The preparatory and consultation task force appointed by the Hungarian Pancreatic Study Group translated and complemented and/or modified the international guidelines if it was necessary. In 8 clinical topics (diagnosis; etiology; prognosis; imaging; therapy; biliary tract management; complications; chronic pancreatitis) 50 relevant questions were defined. Evidence was classified according to the UpToDate(®) grading system. The draft of the guidelines was presented and discussed at the consensus meeting on September 12, 2014. All clinical statements were accepted with total (more than 95%) agreement. The present Hungarian Pancreatic Study Group guideline is the first evidence based pediatric pancreatitis guideline in Hungary. The present guideline is the first evidence-based pancreatic cancer guideline in Hungary that provides a solid ground for teaching purposes, offers quick reference for daily patient care in pediatric pancreatitis and guides financing options. The authors strongly believe that these guidelines will become a standard reference for pancreatic cancer treatment in Hungary.