Supplementum 235 (June 3, 2019)
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SMW Established in 1871 Swiss Medical Weekly Formerly: Schweizerische Medizinische Wochenschrift An open access, online journal • www.smw.ch Supplementum 235 Annual Meeting ad Swiss Med Wkly Swiss Society of Paediatrics 2019;149 June 3, 2019 Bellinzona (Switzerland), June 6/7, 2019 Abstracts Annual Meeting Swiss Society of Paediatrics Bellinzona (Switzerland), June 6/7, 2019 Table of contents 2 S FM 1 ‒ FM 6 Free communications 1 3 S FM 7 ‒ FM 12 Free communications 2 5 S FM 13 ‒ FM 18 Free communications 3 7 S FM 19 ‒ FM 24 Free communications 4 8 S FM 25 ‒ FM 30 Free communications 5 11 S SPN 1 ‒ SPN 6 SwissPedNet: Translational & Clinical Research Session 1 12 S SPN 7 ‒ SPN 11 SwissPedNet: Translational & Clinical Research Session 2 15 S P 1 ‒ P 120 Posters 48 S Index of first authors Swiss Medical Weekly 2019;149 (Suppl. 235) ● www.smw.ch EMHMedia ANNUAL MEETING SWISS SOCIETY OF PAEDIATRICS, JUNE 6/7, 2019 2 S FREE COMMUNICATIONS FM 1 ‒ FM 30 FM 1 Conclusion: A large proportion of children were immune against teta- nus, measles, rubella and varicella. However, some subgroups of chil- Epidemiology of the Kawasaki disease in children in Switzerland dren were less protected at least against one of the four diseases ana- Gradoux Eugénie1, Di Bernardo Stefano2, Bressieux-Deguedre lyzed. We therefore could establish recommendations depending on the Sabrina2, Mivelaz Yvan2, Boulos Konstini Tatiana2, Prsa Milan2, origin and the age of the children on who to vaccinate first (without testing Sekarski Nicole2, Swiss Pediatric Surveillance Unit serologies) and verify seroresponse after and who to test first and vac- 1Department of Paediatrics, University Hospital Centre, Lausanne, Switzerland; cinate only when needed. Such recommendations avoid unnecessary 2Unit of Paediatric Cardiology, Department of Paediatrics, University Hospital and unpleasant testing, and/or vaccination, and may have an impact on Centre Lausanne, Switzerland health costs. Introduction: Kawasaki disease (KD) was first described in 1967 and is now the leading cause of acquired heart disease in children in developed FM 3 countries. It is an acute febrile illness of unknown aetiology occurring predominantly in infants and young children and most commonly affect- CXCL13 as a diagnostic marker of neuroborreliosis in children, a ing coronary arteries. The epidemiology of KD is unknown in Switzerland, retrospective case-control study therefore we conducted a national study to investigate the demography, Schöbi N1, Remy MM2, Kottanattu L1, Pfister S2, Duppenthaler A1, diagnosis and treatment of children with KD. Suter-Riniker F2 Material and methods: We worked with the Swiss Paediatric Surveil- 1Department of Paediatrics, Bern University Hospital, University of Bern, Switzer- lance Unit (SPSU) to take a census of the children hospitalised with the land; 2Institute of Infectious Diseases, University of Bern, Switzerland diagnosis of KD in Switzerland from March 2013 to February 2017, in a Aim: Lyme neuroborreliosis (LNB) is a frequent manifestation of Lyme prospective manner. We defined complete KD by the AHA criteria: the disease in children and its diagnosis, which requires proof of intrathecal presence of ≥5 days of fever and ≥4 of the 5 principal clinical features antibody production, has limitations especially in early cases. The eleva- (cutaneous rash, cervical lymphadenopathy >1,5 cm diameter, conjunc- tion of the chemokine CXCL13 in the cerebrospinal fluid (CSF) of adult tivitis, changes of lips or oral/pharyngeal erythema and extremity patients with LNB has been demonstrated and suggested as a new di- changes). The cases with less than 4 clinical signs were considered in- agnostic marker. Our aim was to evaluate the diagnostic value of CSF complete. We included all children under 17 years of age. CXCL13 in children with suspected LNB and to determine a cut-off con- Results: We included 175 patients, 105 (60%) were boys, with a median centration of CSF CXCL13. age of 38,2 months (standard deviation (SD): 31,0). The most frequent Methods: For this single-center retrospective case-control study we clinical sign was a rash (85,4%). The diagnosis was made 7,3 days (SD used a diagnostic-approved ELISA to measure CXCL13 concentrations 4,1) after the first symptom was identified. The complete form of the dis- in the CSF of 185 children with suspicion of LNB at presentation. Patients ease was reported in 107 children (61,1%) and an abnormal echocardi- were classified into definite LNB (patients with a positive intrathecal an- ography was found in 91 patients (52,3%). Most of the patients had the tibody index as a gold standard), non-LNB (controls with other CNS af- recommended treatment of intravenous immunoglobulin (IVIG) (174; fections, i.e. viral meningitis, inflammatory diseases, idiopathic facial 99,4%) and aspirin (172; 98,3%). A second dose of IVIG because of per- palsy) and possible LNB. A receiver operating characteristic curve was sisting fever was given in 39 cases (23,8%). Second line treatment with generated by comparison of cases and controls. corticosteroids or infliximab was necessary in 29 children (16,6%) and 1 Results: CXCL13 was significantly elevated in the CSF of 53 children patient (0,6%) received rituximab as 3rd line treatment. One (0,6%) child with definite LNB (median 774.7 pg/ml) compared to 91 non-LNB pa- died of KD. tients which exhibited low concentrations of CXCL13 (median 4.5 pg/ml). The global incidence of KD in children under 16 years of age in Switzer- A cut-off of 55 pg/ml resulted in a sensitivity of 96.7% and a specificity of land 3,05/100’000/year. For the children less than 5 years old, the inci- 98.1% for the diagnosis of definite early LNB. The positive and negative dence is 6,8/100’000/year. predictive values of the test were respectively 94.6% and 98.9%. Ele- Conclusion: The incidence of the disease in our cohort is in the range vated CSF CXCL13 levels were also detected in 3 cases of viral menin- of other European countries (5-10/100’000/year in children less than 5 gitis (enterovirus n = 1, varicella-zoster-virus n = 2) while other CNS af- years old). The complete form of the disease was reported in 61,1% of fections such as idiopathic facial palsies did not lead to any CXCL13 el- the patients. More than half had an abnormal echocardiography during evation. In patients with possible LNB (n = 41) where a definitive diagno- the acute phase. In most cases, IVIG and aspirin are appropriately be- sis could not be obtained, CXCL13 ranged from 4.5 to 1’418.6 pg/ml fore day 10 of fever. (median 16.7 pg/ml) and 27% of these patients had elevated CXCL13 values. FM 2 Conclusion: We confirm that also in children CSF CXCL13 is highly el- evated during early LNB. This marker is highly sensitive and specific and Immunization coverage against tetanus, measles, rubella and vari- should help to differentiate LNB from other CNS affections in paediatric cella among migrant children patients. Cisier Deborah1, 2, Posfay-Barbe Klara1, 2 1Faculty of Medecine, University of Geneva, Switzerland; 2Child and Adolescent FM 4 Departement, Geneva University Hospitals, Switzerland Background: Migrants are at higher risk of developing infectious dis- Ongoing burden of Streptococcus pneumoniae sepsis in children eases. Epidemics often start in refugee camps as consequence of poor after introduction of pneumococcal conjuguate vaccines hygiene and lower vaccination coverage. Tetanus, measles, rubella and Sandra A Asner1,2, Philipp K A Agyeman,3, Eugénie Gradoux1, Klara M varicella are four vaccine-preventable diseases. The aim of this study is Posfay-Barbe4, Ulrich Heininger5, Eric Giannoni2,6, Pierre-Alex Crisinel1, to assess the immunity against these four diseases among migrant chil- Martin Stocker7, Sara Bernhard-Stirnemann8, Anita Niederer-Loher9, dren in Geneva Children’s Hospital and to identify factors that could be Christian R Kahlert9, Paul Haster10, Christa Relly11, Walter Baer12, used to predict the usually unknown vaccinal status. Christoph Aebi3, Luregn J Schlapbach3,13,14,15, Christoph Berger11, For Methods: We retrospectively analyzed the serostatus for tetanus, mea- the Swiss Paediatric Sepsis Study group 2,3 sles, rubella and varicella of children aged 1 to 16 years of age using an 1Pediatric Infectious Diseases and Vaccinology Unit, Department Mother- enzyme-linked immunosorbent assay (ELISA) for tetanus, measles and Woman-Child, Lausanne University Hospital, Lausanne, Switzerland; 2Infectious rubella and an electrochemiluminescence assay for varicella. Diseases Service, Department of Internal Medicine, Lausanne University Hospi- Results: Among 507 children analyzed between January the 1st 2012 tal, Lausanne, Switzerland; 3Department of Pediatrics, Inselspital, Bern Univer- 4 and December the 31st 2016, 98% were protected against tetanus. sity Hospital, University of Bern, Switzerland; Pediatric Infectious Diseases Unit, Children’s Hospital of Geneva, University Hospitals of Geneva, Geneva, Switzer- Teenagers had significantly higher negative results (4.2% vs 1.3%, P = land; 5Infectious Diseases and Vaccinology, University Children’s Hospital Basel, 0.048). 93.1% were seropositive for measles and the seropositivity in- Basel, Switzerland; 6Clinic of Neonatology, Department Mother-Woman-Child, creased with age. 79.2% children had a positive result for rubella. African Lausanne University Hospital, Lausanne, Switzerland; 7Department of Pediatrics, children had predominantly negative serologies (60% vs 20.8%, P <0.01) Children’s Hospital