NPPB and acute kidney injury: Additionally, patients with myocarditis (p < 0.001, median 4509.5 pg/ml, IQR 1600–14,922) and acute kidney injury (p < 0.001, median 8180 pg/ml, IQR 941–32,084) had significantly increased NT-pro-BNP levels compared to patients without myocarditis (median 823.5 pg/ml, IQR 322–2119) and/or without kidney impairment (median 1926 pg/ml, IQR 514–3725.5), respectively.