[COVID-19-associated multisystem inflammatory syndrome in children: case series at a pediatric hospital in Peru]

Liz E De Coll-Vela1,2, Mariela K Zamudio-Aquise1,3, Héctor Nuñez-Paucar1,2

  • 1Instituto Nacional de Salud del Niño Breña, Lima, Perú.

Insights

Multisystem Inflammatory Syndrome in children (MIS-C) presents uniquely in pediatric patients. Early investigation is crucial for children with fever, GI, and dermatological symptoms post-SARS-CoV-2 exposure.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Immunology

Background:

  • The COVID-19 pandemic introduced Multisystem Inflammatory Syndrome in children (MIS-C), a novel pediatric condition.
  • Understanding MIS-C's diverse clinical spectrum and outcomes is critical for effective management.

Observation:

  • Eight pediatric patients in Lima, Peru, diagnosed with MIS-C were analyzed.
  • Mean age was 5.1 years, presenting with fever, gastrointestinal, ocular, and mucocutaneous symptoms.
  • Four patients met criteria for Kawasaki Disease; four met criteria for Macrophage Activation Syndrome.

Findings:

  • All patients had SARS-CoV-2 serology positivity, abnormal blood counts, coagulation, and elevated inflammatory markers.
  • Elevated liver enzymes (5/8) and kidney involvement (3/8) were observed.
  • While most recovered, one experienced myocarditis and shock, requiring Pediatric Intensive Care Unit admission; no coronary aneurysms were noted.

Implications:

  • Children presenting with fever, GI, and dermatological symptoms after SARS-CoV-2 exposure require thorough investigation for MIS-C.
  • Prompt diagnosis and management, including IVIG, corticosteroids, and aspirin, are vital for favorable outcomes.
  • This study highlights the importance of recognizing MIS-C's varied presentations in pediatric populations.