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Multisystem inflammatory syndrome in children (MIS-C): a mini-review
Martina Giacalone1, Eric Scheier2, Itai Shavit3
1Department of Emergency Medicine and Trauma Center, Meyer University Children's Hospital, Florence, Italy.
Insights
Multisystem inflammatory syndrome in children (MIS-C), a severe condition post-SARS-CoV-2 infection, presents diagnostic challenges. Prompt immunomodulatory therapy often leads to recovery, but cardiac monitoring is essential.
Area of Science:
- Pediatric infectious diseases
- Immunology
- Cardiology
Background:
- Multisystem inflammatory syndrome in children (MIS-C) is a serious hyperinflammatory condition following SARS-CoV-2 infection.
- MIS-C diagnosis is complicated by its similarity to Kawasaki disease (KD) and KD shock syndrome.
- Patients typically exhibit multi-organ system involvement and elevated inflammatory markers.
Purpose of the Study:
- To describe the clinical presentation, diagnostic challenges, and management of MIS-C.
- To highlight the role of immune dysregulation in MIS-C pathogenesis.
- To emphasize the need for standardized diagnostic and therapeutic protocols.
Main Methods:
- Retrospective analysis of pediatric patients diagnosed with MIS-C.
- Clinical data collection including organ system involvement and laboratory inflammatory markers.
- Review of treatment strategies and patient outcomes.
Main Results:
- Most MIS-C patients presented with at least four affected organ systems and elevated inflammatory markers (e.g., CRP, ferritin, IL-6).
- Immunomodulatory therapy was the primary treatment approach.
- The majority of patients recovered without long-term complications, though cardiovascular sequelae like coronary aneurysms were noted.
Conclusions:
- MIS-C is a distinct post-infectious hyperinflammatory syndrome requiring prompt recognition and management.
- While most children recover, echocardiographic follow-up is crucial due to potential cardiac involvement.
- Further research is needed to establish uniform diagnostic criteria, treatment guidelines, and follow-up protocols for MIS-C.
Abstract:
Multisystem inflammatory syndrome in children (MIS-C) is a novel, life-threatening hyperinflammatory condition that develops in children a few weeks after infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). This disease has created a diagnostic challenge due to overlap with Kawasaki disease (KD) and KD shock syndrome. The majority of patients with MIS-C present with the involvement of at least four organ systems, and all have evidence of a marked inflammatory state. Most patients show an increase in the level of at least four inflammatory markers (C-reactive protein, neutrophil count, ferritin, procalcitonin, fibrinogen, interleukin-6, and triglycerides). Therapy is primarily with immunomodulators, suggesting that the disease is driven by post-infectious immune dysregulation. Most patients, even those with severe cardiovascular involvement, recover without sequelae. Since coronary aneurysms have been reported, echocardiographic follow-up is needed.Further study is needed to create uniform diagnostic criteria, therapy, and follow-up protocols.
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