Heart failure & cardiomyopathies

Prognostic Implications of Clinical and Imaging Diagnostic Criteria for Myocarditis

J Am Coll CardiolPublished Prospective cohort study

Authors' conclusion

In a real-world cohort of patients with possible myocarditis, diagnosis was reached in most patients using ESC criteria whereas only approximately one-quarter of patients reached a diagnosis with LLC.

Study context

Population
Patients with clinically suspected myocarditis referred for CMR, without prior cardiomyopathy or alternative diagnosis
Participants
938 / 299 / 356 / 216 / 77
Exposure
European Society of Cardiology (ESC) criteria vs updated Lake-Louise criteria vs AHA probable acute myocarditis vs expert consensus acute and complicated myocarditis criteria
  • ESC criterian = 938
  • Lake-Louise criteria (LLC)n = 299
  • Probable acute myocarditis (pAM)n = 356
  • Acute myocarditis (AM)n = 216
  • Complicated myocarditis (CM)n = 77
Outcome
Composite of:
  • HF hospitalisation
  • Recurrent myocarditis
  • Sustained VT
  • Death
Follow-up
Median 3.4 years
Methodological details2 centres, consecutive patients
  • 2 centres
  • Consecutive patients

Main finding

As reported in the abstract

Composite outcome events

LLC

6.6%

annualized event rate

Adjusted for clinical characteristics
HRadjusted (95% CI)P value
ESC criteria
3.87(1.22–12.2)
P = 0.021
LLC
2.53(1.83–3.49)
P < 0.001
Adverse events, all patients
161 patients (15.3%)
Annualized event rate with negative ESC criteria
0.7%

Observational data: associations, not effects.

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Prognostic Implications of Clinical and Imaging Diagnostic Criteria for Myocarditis. J Am Coll Cardiol. Published 8 October 2024. doi:10.1016/j.jacc.2024.07.018

Composed by AI from the published abstract and checked against it. How Briefs are made →

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