{"entity": "researcher", "timestamp": "2026-08-22T06:58:16.334Z", "family": "Altman", "given": "Maria", "initials": "M", "orcid": "0000-0001-8316-0154", "affiliations": ["Department of Paediatric Rheumatology, Astrid Lindgren Children's Hospital, Karolinska, Sweden.", "Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden."], "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/researcher/32f8e4ab4b9443e28169230f35385087.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/researcher/32f8e4ab4b9443e28169230f35385087"}}, "publications": [{"entity": "publication", "iuid": "0f37158895584853b34b25c2f449e116", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/0f37158895584853b34b25c2f449e116.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/0f37158895584853b34b25c2f449e116"}}, "title": "Population-based study of multisystem inflammatory syndrome associated with COVID-19 found that 36% of children had persistent symptoms.", "authors": [{"family": "Kahn", "given": "Robin", "initials": "R", "orcid": "0000-0002-3167-1179", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/17ecdb4f26a648ba9ee080bb72a86c82.json"}}, {"family": "Berg", "given": "Stefan", "initials": "S"}, {"family": "Berntson", "given": "Lillemor", "initials": "L", "orcid": "0000-0003-3962-0453", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/57e1606172654f51815c533ebb1b4f22.json"}}, {"family": "Berthold", "given": "Elisabet", "initials": "E"}, {"family": "Brodin", "given": "Petter", "initials": "P", "orcid": "0000-0002-8103-0046", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/b5fe1b70e79d48b1bc07ceeec842c3a3.json"}}, {"family": "B\u00e4ckstr\u00f6m", "given": "Fredrik", "initials": "F"}, {"family": "Compagno", "given": "Michele", "initials": "M"}, {"family": "Fasth", "given": "Anders", "initials": "A", "orcid": "0000-0002-0033-740X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/606310515418471aa8c67deefc761d4c.json"}}, {"family": "Lingman Framme", "given": "Jenny", "initials": "J"}, {"family": "Horne", "given": "AnnaCarin", "initials": "A"}, {"family": "H\u00e4tting", "given": "Josefin", "initials": "J"}, {"family": "Kr\u00f3l", "given": "Petra", "initials": "P"}, {"family": "Kukka", "given": "Antti J", "initials": "AJ"}, {"family": "Mossberg", "given": "Maria", "initials": "M"}, {"family": "M\u00e5nsson", "given": "Bengt", "initials": "B"}, {"family": "Nordenh\u00e4ll", "given": "Charlotta", "initials": "C"}, {"family": "Idring Nordstr\u00f6m", "given": "Selma", "initials": "S"}, {"family": "Khammari Nystr\u00f6m", "given": "Fatine", "initials": "F"}, {"family": "Palmblad", "given": "Karin", "initials": "K"}, {"family": "Rasti", "given": "Reza", "initials": "R"}, {"family": "Rudolph", "given": "Andr\u00e9", "initials": "A"}, {"family": "Rydenman", "given": "Karin", "initials": "K"}, {"family": "Sundberg", "given": "Erik", "initials": "E"}, {"family": "S\u00e4ve-S\u00f6derbergh", "given": "Eva", "initials": "E"}, {"family": "Altman", "given": "Maria", "initials": "M", "orcid": "0000-0001-8316-0154", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/32f8e4ab4b9443e28169230f35385087.json"}}], "type": "journal article", "published": "2022-02-00", "journal": {"title": "Acta Paediatr", "issn": "1651-2227", "volume": "111", "issue": "2", "pages": "354-362", "issn-l": null}, "abstract": "Our aim was to describe the outcomes of multisystem inflammatory syndrome in children (MIS-C) associated with COVID-19.\n\nThis national, population-based, longitudinal, multicentre study used Swedish data that were prospectively collected between 1 December 2020 and 31 May 2021. All patients met the World Health Organization criteria for MIS-C. The outcomes 2 and 8 weeks after diagnosis are presented, and follow-up protocols are suggested.\n\nWe identified 152 cases, and 133 (87%) participated. When followed up 2 weeks after MIS-C was diagnosed, 43% of the 119 patients had abnormal results, including complete blood cell counts, platelet counts, albumin levels, electrocardiograms and echocardiograms. After 8 weeks, 36% of 89 had an abnormal patient history, but clinical findings were uncommon. Echocardiogram results were abnormal in 5% of 67, and the most common complaint was fatigue. Older children and those who received intensive care were more likely to report symptoms and have abnormal cardiac results.\n\nMore than a third (36%) of the patients had persistent symptoms 8 weeks after MIS-C, and 5% had abnormal echocardiograms. Older age and higher levels of initial care appeared to be risk factors. Structured follow-up visits are important after MIS-C.", "doi": "10.1111/apa.16191", "pmid": "34806789", "labels": [], "xrefs": [{"db": "pmc", "key": "PMC9011862"}], "notes": [], "created": "2026-08-21T12:17:16.127Z", "modified": "2026-08-21T12:17:16.295Z"}]}