Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Pediatric Inflammatory Multisystem Syndrome (PIMS) Did Occur in Poland during Months with Low COVID-19 Prevalence. Preliminary Results of a Nationwide Register.

Version 1 : Received: 17 September 2020 / Approved: 18 September 2020 / Online: 18 September 2020 (11:29:49 CEST)

How to cite: Okarska-Napierała, M.; Ludwikowska, K.; Szenborn, L.; Dudek, N.; Mania, A.; Buda, P.; Książyk, J.; Mazur-Malewska, K.; Figlerowicz, M.; Szczukocki, M.; Kucińska, B.; Werner, B.; Stopyra, L.; Czech, A.; Berdej-Szczot, E.; Gawlik, A.; Opalińska, P.; Mazur, A.; Januszkiewicz-Lewandowska, D.; Niszczota, C.; Jackowska, T.; Wysocki, J.; Tracewski, P.; Kusa, J.; Potocka, P.; Sulik, A.; Ziora, K.; Krakowczyk, H.; Wodniak, A.; Zaryczański, J.; Żakiewicz-Cepak, A.; Jarocka-Cyrta, E.; Koczwara, A.; Prusek-Dudkiewicz, A.; Zbucka-Jachowska, E.; Langer-Wójcik, S.; Kołodziej, E.; Kuchar, E. Pediatric Inflammatory Multisystem Syndrome (PIMS) Did Occur in Poland during Months with Low COVID-19 Prevalence. Preliminary Results of a Nationwide Register.. Preprints 2020, 2020090435 (doi: 10.20944/preprints202009.0435.v1). Okarska-Napierała, M.; Ludwikowska, K.; Szenborn, L.; Dudek, N.; Mania, A.; Buda, P.; Książyk, J.; Mazur-Malewska, K.; Figlerowicz, M.; Szczukocki, M.; Kucińska, B.; Werner, B.; Stopyra, L.; Czech, A.; Berdej-Szczot, E.; Gawlik, A.; Opalińska, P.; Mazur, A.; Januszkiewicz-Lewandowska, D.; Niszczota, C.; Jackowska, T.; Wysocki, J.; Tracewski, P.; Kusa, J.; Potocka, P.; Sulik, A.; Ziora, K.; Krakowczyk, H.; Wodniak, A.; Zaryczański, J.; Żakiewicz-Cepak, A.; Jarocka-Cyrta, E.; Koczwara, A.; Prusek-Dudkiewicz, A.; Zbucka-Jachowska, E.; Langer-Wójcik, S.; Kołodziej, E.; Kuchar, E. Pediatric Inflammatory Multisystem Syndrome (PIMS) Did Occur in Poland during Months with Low COVID-19 Prevalence. Preliminary Results of a Nationwide Register.. Preprints 2020, 2020090435 (doi: 10.20944/preprints202009.0435.v1).

Abstract

Pediatric inflammatory multisystem syndrome (PIMS) is a new entity in children, likely associated with previous coronavirus disease 19 (COVID-19). Most of reports about PIMS come from countries particularly hit by the COVID-19 pandemic. Our aim was to investigate the nature of inflammatory syndromes in Poland (a country with low COVID-19 prevalence) and to perceive the emergence of PIMS in our country. On May 25th, we have launched a nationwide survey of inflammatory syndromes in children for retrospective (since 4th March 2020) and prospective data collection. Up to 28th July, 39 reported children met inclusion criteria. We stratified them according to age (<5 and ≥ 5 years old) and COVID-19 status. The majority of children had clinical and laboratory features of Kawasaki disease, probably non-associated with COVID-19. However, children ≥5 years of age had PIMS characteristics, and 9 children had COVID-19 confirmation. This is the first to our knowledge report of PIMS register from the country with low COVID-19 prevalence, and it proves that PIMS may emerge in any area involved in the COVID-19 pandemic. In a context of limited COVID-19 testing availability, other risk factors of PIMS, e.g. older age should be considered in the differential diagnosis of inflammatory syndromes in children.

Subject Areas

PIMS; MIS-C; SARS-CoV-2; COVID-19; Kawasaki disease; survey

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