<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0872-0754</journal-id>
<journal-title><![CDATA[Nascer e Crescer]]></journal-title>
<abbrev-journal-title><![CDATA[Nascer e Crescer]]></abbrev-journal-title>
<issn>0872-0754</issn>
<publisher>
<publisher-name><![CDATA[Centro Hospitalar do Porto]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0872-07542024000400245</article-id>
<article-id pub-id-type="doi">10.25753/birthgrowthmj.v33.i4.29808</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Comparison of laboratory features of pediatric multisystem inflammatory syndrome with other invasive febrile diseases]]></article-title>
<article-title xml:lang="pt"><![CDATA[Comparação analítica de crianças com síndrome inflamatória multissistémica pediátrica e outras doenças febris invasivas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tovim]]></surname>
<given-names><![CDATA[Inês]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Abecasis]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Unidade Local de Sau&#769;de de Sa&#771;o Jose&#769; Hospital Dona Estefânia Department of Pediatrics]]></institution>
<addr-line><![CDATA[Lisboa ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Unidade Local de Saúde de Santa Maria Pediatric Intensive Care Unit ]]></institution>
<addr-line><![CDATA[Lisboa ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Lisbon School of Medicine  ]]></institution>
<addr-line><![CDATA[Lisboa ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>33</volume>
<numero>4</numero>
<fpage>245</fpage>
<lpage>254</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0872-07542024000400245&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0872-07542024000400245&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0872-07542024000400245&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  COVID-19 does not seem to affect children as much as adults. However, a new emerging entity associated with COVID-19, called multisystem inflammatory syndrome in children (MIS-C), has been reported. The aim of this study was to compare the laboratory characteristics of children with MIS-C and other invasive febrile diseases.  Methods:  A single-center prospective study was conducted in a Pediatric Intensive Care Unit of a university hospital. The same laboratory panel was performed in both groups: C-reactive protein, procalcitonin, erythrocyte sedimentation rate, interleukin-6, N-terminal pro-B-type natriuretic peptide, troponin T, ferritin, activated partial thromboplastin time, prothrombin time, fibrinogen, and lymphocyte count.  Results:  Forty-one patients were included, twenty-four in the MIS-C group and seventeen in the non-MIS-C group. MIS-C predominantly affected older children and adolescents (median age 12 years). Lymphopenia was identified in every patient in the MIS-C group. NT-proBNP, troponin T, CRP, ESR, and fibrinogen levels were significantly higher in the MIS-C group. IL-6 levels were similar between the two groups (p=0.745).  Conclusions:  Patients with MIS-C had a laboratory profile characterized by elevated cardiac and inflammatory markers, with lymphopenia being a common feature. IL-6 levels should be interpreted with caution for therapeutic decisions in patients with MIS-C, as they are similar to those seen in patients with other febrile diseases.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Introdução:  A COVID-19 não parece afetar as crianças de forma tão grave como os adultos. Contudo, tem sido descrita uma entidade emergente associada à COVID-19 designada síndrome inflamatória multissistémica pediátrica (MIS-C). O objetivo deste estudo foi comparar as alterações laboratoriais observadas em crianças com MIS-C e outras doenças febris invasivas, de forma a otimizar o diagnóstico desta nova entidade.  Métodos:  Foi conduzido um estudo prospetivo numa Unidade de Cuidados Intensivos Pediátricos de um hospital universitário, em que foi analisado o mesmo painel analítico em ambos os grupos: proteína-C-reativa, procalcitonina, velocidade de sedimentação, interleucina-6, N-terminal pró-peptídeo natriurético tipo-B, troponina T, ferritina, tempo de tromboplastina parcial ativada, tempo de trobrombina, fibrinogénio e contagem de linfócitos.  Resultados:  Foram incluídos 41 doentes, 24 no grupo MIS-C e 17 no grupo não-MIS-C. O estudo demonstrou que a MIS-C afeta crianças mais velhas e adolescentes (mediana de 12 anos de idade). Foi identificada linfopenia em todos os doentes MIS-C. Os níveis de NT-proBNP, troponina T, PCR, VS e fibrinogénio encontraram-se significativamente mais elevados no grupo MIS-C. Os níveis de IL-6 foram semelhantes nos dois grupos (p=0,745).  Conclusão:  Os doentes com MIS-C apresentaram um perfil laboratorial com aumento das enzimas cardíacas e dos marcadores inflamatórios e linfopenia generalizadamente presente. Os níveis de IL-6 devem ser interpretados com cautela para a decisão terapêutica em doentes com MIS-C, uma vez que são semelhantes aos observados nos doentes com outras doenças febris invasivas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[critically ill child]]></kwd>
<kwd lng="en"><![CDATA[hyperinflammation]]></kwd>
<kwd lng="en"><![CDATA[lymphopenia]]></kwd>
<kwd lng="en"><![CDATA[multisystem inflammatory syndrome in children]]></kwd>
<kwd lng="en"><![CDATA[pediatric inflammatory multisystem syndrome]]></kwd>
<kwd lng="en"><![CDATA[sepsis]]></kwd>
<kwd lng="pt"><![CDATA[criança gravemente doente]]></kwd>
<kwd lng="pt"><![CDATA[linfopenia]]></kwd>
<kwd lng="pt"><![CDATA[hiperinflamação]]></kwd>
<kwd lng="pt"><![CDATA[síndrome inflamatória multissistémica em crianças]]></kwd>
<kwd lng="pt"><![CDATA[síndrome multissistémica inflamatória pediátrica]]></kwd>
<kwd lng="pt"><![CDATA[sépsis]]></kwd>
</kwd-group>
</article-meta>
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