Key result
An early repolarization ECG pattern in acute myocarditis was not associated with a worse prognosis, with 0% of ER patients versus 42.9% of non-ER patients developing lethal tachyarrhythmias.
Why the study?
Little evidence was available regarding the prevalence and clinical significance of the early repolarization ECG pattern in acute myocarditis.
Does an early repolarization ECG pattern predict worse clinical outcomes or specific cardiac magnetic resonance findings in patients with acute myocarditis?
Comparison
Presence of ER-ECG pattern on admission vs absence (broad ST-segment elevation or pathological Q waves)
Design
Retrospective cohort study
Authors
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May not warrant intensified arrhythmia monitoring in acute myocarditis; leaves open CMR phenotype correlations for prospective validation.
Cohort (n=30)
Does an early repolarization ECG pattern predict worse clinical outcomes or specific cardiac magnetic resonance findings in patients with acute myocarditis?
Absolute Event Rate: 0% vs 42.9%
In acute myocarditis, an early repolarization ECG pattern is transient, associated with localized epicardial inflammation on CMR, and does not predict a worse prognosis or lethal ventricular tachyarrhythmias.
Oka et al. (2019) conducted a cohort in acute myocarditis (n=30). Early repolarization electrocardiographic (ER-ECG) pattern vs. Non-ER ECG pattern (broad ST-segment elevation or pathological Q waves) was evaluated on Fulminant course and lethal ventricular tachyarrhythmias. An early repolarization ECG pattern in acute myocarditis was not associated with a worse prognosis, with 0% of ER patients versus 42.9% of non-ER patients developing lethal tachyarrhythmias.
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