Myocarditis in a 16-year-old boy positive for SARS-CoV-2

Investigations showed raised high-sensitivity cardiac troponin I (9449 ng/L), creatine phosphokinase (671·0 U/L), C-reactive protein (32·5 mg/L), and lactate dehydrogenase (276·0 U/L) concentrations (appendix). The leucocyte count was 12·75 × 109 per L, the neutrophil count was 10·04 × 109 per L, and the lymphocyte count was 0·78 × 109 per L. We gave the boy aspirin to relieve his pain and transferred him to the coronary care unit with a working diagnosis of acute myocarditis. Paediatric patients reporting chest pain and other features suggestive of acute myocarditis—with or without respiratory symptoms—should, we believe, also be tested for SARS-CoV-2 (video).