Figure 1.

Serial High-Sensitivity Troponin T Levels Among Selected Immune Checkpoint Inhibitor–Induced Myocarditis Cases

Serial high sensitivity troponin T plotted for 10 patients beginning at hospital admission for myocarditis. Patients were included if diagnosed after January 1, 2021. The black reference line indicates upper limit of normal (19 pg/mL). All but 1 patient had persistently elevated troponin for up to 60 days after diagnosis of myocarditis, likely reflecting persistent immune activation by immune checkpoint inhibitors or chronic myocarditis.