Case Study

Multisystem inflammatory syndrome in children following SARS-CoV-2 infection: A case report


Introduction: COVID-19 in children has a diverse clinical presentation, most of which is asymptomatic or mildly symptomatic. In addition, after 2-6 weeks of being infected with COVID-19, children may have the multisystem inflammatory syndrome in children (MIS-C), which is rare but serious condition, death has also been reported despite active treatment. We describe a severe clinical case of MIS-C treated at our hospital in the early stage of the 4th wave of COVID-19 in Vietnam.

Case report: A six-year-old boy admitted to Thu Duc City Hospital on August 27th, 2021. He had a history of COVID-19, which was diagnosed by a positive RT-PCR SARS CoV-2 test on July 24th, 2021. He had no symptoms and was concentrated quarantine with his family. He was discharged on August 12th, 2021. Four weeks after SARS-CoV-2 infection, he had symptoms such as sustained fever (5 days), stomachache (6 days), erythema multiform (8 days), eye and lip swelling (7 days), edema of hands and feet (10 days), dyspnea (5 days), hepatomegaly and shock. After then, he was diagnosed with MIS-C and treated with intravenous methylprednisolone 2 mg/kg/day (3 days), then tapered 1 mg/kg/day (5 days), maintained with prednisone 1 mg/kg/day for 14 days. The patient had no clinical symptoms, was discharged after 14 days of treatment, and continued treatment with aspirin 3 mg/kg/day and prednisolone 1 mg/kg/day.

Conclusion: The MIS-C manifestation following SARS-CoV2 infection needs prompt attention and treatment. Intravenous immunoglobulin plays an important role in treatment. However, when intravenous immunoglobulin is not available where limited resources, early appropriate use of methylprednisolone may be beneficial. 

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