• Eur. J. Pediatr. · May 2021

    SARS-CoV-2-associated multisystem inflammatory syndrome in children: clinical manifestations and the role of infliximab treatment.

    • Nahed Abdel-Haq, Basim I Asmar, Maria P Deza Leon, Eric J McGrath, Harbir S Arora, Katherine Cashen, Bradley Tilford, Ahmad Charaf Eddine, Usha Sethuraman, and Jocelyn Y Ang.
    • Division of Infectious Diseases, Children's Hospital of Michigan, 3901 Beaubien Blvd, Detroit, MI, 48201, USA. nabdel@dmc.org.
    • Eur. J. Pediatr. 2021 May 1; 180 (5): 1581-1591.

    AbstractThis study was conducted to assess the clinical spectrum, management, and outcome of SARS-CoV-2-related multisystem inflammatory syndrome in children (MIS-C). We reviewed medical records of children with MIS-C diagnosis seen at the Children's Hospital of Michigan in Detroit between April and June 2020. Thirty-three children were identified including 22 who required critical care (group 1) and 11 with less intense inflammation (group 2). Children in group 1 were older (median 7.0 years) than those in group 2 (median 2.0 years). Abdominal pain was present in 68% of patients in group 1. Hypotension or shock was present in 17/22 patients in group 1. Thirteen (39.4%) had Kawasaki disease (KD)-like manifestations. Five developed coronary artery dilatation; All resolved on follow-up. Intravenous immunoglobulin (IVIG) was given to all patients in group 1 and 7/11 in group 2. Second-line therapy was needed in 13/22 (group 1) for persisting inflammation or myocardial dysfunction; 12 received infliximab. All patients recovered.Conclusion: MIS-C clinical manifestations may overlap with KD; however, MIS-C is likely a distinct inflammatory process characterized by reversible myocardial dysfunction and rarely coronary artery dilatation. Supportive care, IVIG, and second-line therapy with infliximab were associated with a favorable outcome. What is Known: • Multisystem inflammatory syndrome in children (MIS-C) manifestations include fever, gastrointestinal symptoms, shock, and occasional features of Kawasaki disease (KD). • Treatment includes immunomodulatory agents, most commonly IVIG and corticosteroids. What is New: • Spectrum of MIS-C varies from mild to severe inflammation and coronary artery dilatation occurred in 5/22 (23%) critically ill patients. • IVIG and infliximab therapy were associated with a favorable outcome including resolution of coronary dilatation; only 2/33 received corticosteroids.

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