Abstract
Objectives
Immune checkpoint inhibitor (ICI)–associated myocarditis is a potentially fatal complication. Sparse published researches evaluated the prognostic value of cardiovascular magnetic resonance feature tracking (CMR-FT) for ICI-associated myocarditis.
Methods
In the single-center retrospective study, 52 patients with ICI-associated myocarditis and CMR were included from August 2018 to July 2021. The ICI-associated myocarditis was diagnosed by using the clinical criteria of the European Society of Cardiology guidelines. Major adverse cardiovascular events (MACE) were comprised of cardiovascular death, cardiogenic shock, cardiac arrest, and complete heart block.
Results
During a median follow-up of 171 days, 14 (27%) patients developed MACE. For patients with MACE, the global circumferential strain (GCS), global radial strain (GRS), global longitudinal strain (GLS), and left ventricular ejection fraction (LVEF) were significantly worse and native T1 values and late gadolinium enhancement (LGE) extent were significantly increased, compared with patients without MACE (p < 0.05). The GLS remained the independent factor associated with a higher risk of MACE (hazard ratio (HR): 2.115; 95% confidence interval (CI): 1.379–3.246; p = 0.001) when adjusting for LVEF, LGE extent, age, sex, body mass index, steroid treatment, and prior cardiotoxic chemotherapy or radiation. After adjustment for LVEF, the GLS remained the independent risk factor associated with a higher rate of MACE among patients with a preserved LVEF (HR: 1.358; 95% CI: 1.007–1.830; p = 0.045).
Conclusions
GLS could provide independent prognostic value over GCS, GRS, traditional CMR features, and clinical features in patients with ICI-associated myocarditis.
Key Points
• The global circumferential strain (GCS), global radial strain (GRS), and global longitudinal strain (GLS) by cardiovascular magnetic resonance feature tracking were significantly impaired in patients with an immune checkpoint inhibitor (ICI)–associated myocarditis.
• GLS was still significantly impaired in patients with preserved left ventricular ejection fraction.
• The worse GLS was an independent risk factor over GCS, GRS, traditional CMR features, and clinical features for predicting major adverse cardiovascular events in patients with ICI-associated myocarditis.
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Abbreviations
- CMR-FT:
-
Cardiovascular magnetic resonance feature tracking
- EMB:
-
Endomyocardial biopsy
- GCS:
-
Global circumferential strain;
- GLS:
-
Global longitudinal strain
- GRS:
-
Global radial strain
- ICC:
-
Intraclass correlation coefficient
- ICIs:
-
Immune checkpoint inhibitors
- LGE:
-
Late gadolinium enhancement
- LVEF:
-
Left ventricular ejection fraction
- MACE:
-
Major adverse cardiac events
- NT-proBNP:
-
N-terminal pro–B-type natriuretic peptide
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Funding
This study has received funding from the Science Foundation of Shanghai Municipal Health Commission (contract grant number: 202040349), Shanghai Science and Technology Committee (contract grant number: 18DZ1930102), and Shanghai Municipal Key Clinical Specialty (contract grant number: shslczdzk03202).
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The scientific guarantor of this publication is Hang Jin, MD, PhD.
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The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
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No complex statistical methods were necessary for this paper.
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Written informed consent was obtained from all subjects (patients) in this study.
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Institutional Review Board approval was obtained.
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• retrospective
• prognostic study
• performed at one institution
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Zhao, Sh., Yun, H., Chen, Cz. et al. The prognostic value of global myocardium strain by CMR-feature tracking in immune checkpoint inhibitor–associated myocarditis. Eur Radiol 32, 7657–7667 (2022). https://doi.org/10.1007/s00330-022-08844-x
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DOI: https://doi.org/10.1007/s00330-022-08844-x