Tianjin Medical Journal ›› 2022, Vol. 50 ›› Issue (12): 1340-1344.doi: 10.11958/20220587

• Review • Previous Articles    

COVID-19 infection-associated multisystem inflammatory syndrome and cytokine storms in children

CUI Yaqiong1,2(), LIU Wei1,()   

  1. 1 Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin 300134, China
    2 Tianjin Pediatric Research Institute, Tianjin Key Laboratory of Birth Defects for Prevention and Treatment
  • Received:2022-04-17 Revised:2022-06-28 Published:2022-12-15 Online:2022-12-30
  • Contact: LIU Wei E-mail:cuiyaqiong2012@163.com;lance_1971@163.com

Abstract:

Multisystem inflammatory syndrome in children (MIS-C) is a systemic inflammatory syndrome with multi-organ dysfunctions. Most of the children have evidence of severe acute respiratory syndrome-associated coronavirus (SARS-CoV-2) infection or a history of exposure to patients with coronavirus disease 2019 (COVID-19). Children often present with fever, gastrointestinal symptoms, cardiac dysfunctions, shock and other multi-system symptoms. Cytokine storm (CS) is an inflammatory response triggered by external stimulations. Factors causing CS include iatrogenic, pathogenic, monogenic or autoimmune diseases. The pathogenesis of MIS-C is still unclear, which may be related to the over-response of immune system caused by SARS-CoV-2 infections. In this paper, the clinical characteristics of COVID-19 infection-related MIS-C are summarized, and the relationship between MIS-C and CS is discussed, aiming to provide references for the mechanistic investigation and clinical diagnosis of MIS-C.

Key words: coronavirus infections, child, COVID-19, multisystem inflammatory syndrome in children, cytokine storm

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