Multisystem Inflammatory Syndrome in Children (MIS-C) Related to SARS-CoV-2 and 1-Year Follow-up

Indian J Pediatr. 2023 Oct;90(10):1008-1012. doi: 10.1007/s12098-022-04385-9. Epub 2022 Dec 9.

Abstract

Objective: To study the demographics, clinical profile, management, outcome and 1-y follow-up of children with multisystem inflammatory syndrome in children (MIS-C).

Methods: This was a retrospective observational study of 54 Children satisfying the WHO MIS-C criteria admitted during the study period.

Results: Fifty-four children were included in the study, median age was 5.5 (IQR 8.75), 68.5% were males. PICU admissions were 77%. Most involved organ was gastrointestinal (92%), followed by cardiovascular 85%, central nervous system (CNS) 74%, respiratory 72%, mucocutaneous 59%, and renal 31%, and hypotension was the presenting symptom in 43%. Coronary artery dilatation was seen in 1 (1.8%) child. All patients presented with more than three organs involvement. Raised procalcitonin was seen in 100%, raised BNP in 31.5%, low ejection fraction in 83.3%, and abnormal radiograph in 59%. All children were positive for anti-SARS-CoV-2 antibodies and negative for cultures. Methylprednisolone or intravenous immunoglobulin (IVIg) was used in 77%, mechanical ventilation in 18.5%, and inotropic support in 77%. Aspirin was used in 48% and low molecular weight heparin (LMWH) in 54%. The median stay in hospital was 7 d (IQR 2). There was 1 mortality (1.8%). On 7-d follow-up, 98% children had a normal echocardiography; on 6 mo and 1-y follow-up, all children had normal echocardiography.

Conclusion: MIS-C is an important complication of COVID-19 infection. Cardiac involvement resolves completely. Coronary artery involvement is not common.

Keywords: COVID-19; IVIg; Kawasaki disease; MIS-C; Methylprednisolone.

Publication types

  • Observational Study

MeSH terms

  • COVID-19* / complications
  • Child
  • Child, Preschool
  • Female
  • Follow-Up Studies
  • Heparin, Low-Molecular-Weight
  • Humans
  • Male
  • SARS-CoV-2
  • Systemic Inflammatory Response Syndrome / diagnosis
  • Systemic Inflammatory Response Syndrome / therapy

Substances

  • Heparin, Low-Molecular-Weight

Supplementary concepts

  • pediatric multisystem inflammatory disease, COVID-19 related