| Summary: | Abstract The role of immunosuppressive therapy (IT) in paediatric autoimmune/immune‐mediated myocarditis remains poorly defined. To explore its role, we present a series of three consecutive paediatric patients with biopsy‐proven, virus negative, autoimmune/immune‐mediated myocarditis, with distinct clinical and pathological features, who have been successfully treated with IT, a 14‐year‐old boy with Loeffler's fibroblastic parietal endomyocarditis, a 6‐year‐old child with celiac disease with chronic active lymphocytic myocarditis, and a 13‐year‐old boy with long‐standing heart failure and active lymphocytic myocarditis. Patients started IT and entered follow‐up between July 2017 and September 2019; the first patient completed IT. IT was associated with a substantial and sustained recovery of cardiac function in our patients, regardless of their heterogeneous clinical and pathological features. Combination IT was well tolerated and enabled tapering and weaning off steroids.
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