We report three critically ill pediatric patients (aged 6–10 years), presenting with features of multisystem inflammatory syndrome in children (MIS-C) from April 4 to May 10, 2020, to a tertiary-care center in New Jersey, United States. All patients tested positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and were previously healthy. Clinical presentations were similar with fever, abdominal pain, gastrointestinal complaints, and/or rash. One patient had altered mental status with cerebrospinal fluid (CSF) findings consistent with aseptic meningitis. Laboratory values were remarkable for high levels of C-reactive protein, D-dimers, B-type natriuretic peptide (BNP), and troponin in all patients. All had low albumin levels. Evaluation for other infectious etiologies was negative. All of the patients were critically ill, requiring admission to the intensive care unit. All had circulatory shock and needed inotropes. Two patients had respiratory failure requiring advanced respiratory support and one had cardiac dysfunction. All patients received steroids, and two received intravenous immunoglobulin (IVIG). One patient received tocilizumab. None of the children died. MIS-C is a recently recognized pediatric illness spectrum in association with SARS-CoV-2 infection, and clinical characterization is essential for understanding disease mechanisms to inform clinical practice.
Although pediatric survivors of acute hypoxemic respiratory failure perceive neither a limitation in lifestyle nor chronic pulmonary morbidity, careful examination of the cardiopulmonary system demonstrates a significant number with abnormal chest radiographs and abnormalities in pulmonary function. These children require careful follow-up and may benefit from use of a bronchodilator.
Extrarenal involvement manifesting in the cardiovascular system is a rare but potentially fatal complication of hemolytic uremic syndrome (HUS). Current treatment is aimed at cardiovascular supportive measures while awaiting organ recovery. However, there are cases in which this recovery never occurs, and patients succumb secondary to heart failure. We report two cases of severe cardiac failure in children in the acute phase of HUS and the use of extracorporeal membrane oxygenation (ECMO) to support one patient to cardiac recovery. Clinicians should be aware of this potentially life-threatening cardiac involvement and should consider the use of ECMO for potentially salvageable children with HUS.
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