Abstract | AIMS: Cardiovascular magnetic resonance feature tracking (CMR-FT) global longitudinal strain (GLS) provides incremental prognostic value following acute myocardial infarction (AMI) but requires substantial post-processing. Alternatively, manual global long-axis strain (LAS) can be easily assessed from standard steady state free precession images. We aimed to define the prognostic value of LAS in a large multicentre study in patients following AMI. METHODS AND RESULTS: A total of 1235 patients with myocardial infarction [n = 795 with ST-elevation myocardial infarction ( STEMI) and 440 with non-ST-elevation myocardial infarction ( NSTEMI)] underwent cardiovascular magnetic resonance imaging after primary percutaneous coronary intervention in eight centres across Germany. Assessment of LAS was performed in a blinded core-laboratory measuring the systolic shortening between the epicardial apical border and the middle of a line connecting the origins of the mitral leaflets. Primary clinical endpoint was the occurrence of major adverse clinical events ( MACE) including death, reinfarction, and congestive heart failure within 1 year after AMI. During 1-year follow-up, 76 patients suffered from MACE. Impaired LAS was associated with higher MACE occurrence both in STEMI (P < 0.001) and NSTEMI (P = 0.001) patients. Association of LAS remained significant (P = 0.017) after correction for univariate significant parameters for MACE prediction. C-statistics revealed incremental value of additional LAS assessment for optimized event prediction compared with left ventricular ejection fraction ( MACE P = 0.044; mortality P = 0.013) and a combination of established clinical and imaging parameters ( MACE P = 0.084; mortality P = 0.027), but not CMR-FT GLS ( MACE P = 0.075; mortality P = 0.380). CONCLUSION: LAS provides software independent, widely available, easy and fast approximation of longitudinal left ventricular shortening early after reperfused AMI with incremental prognostic value beyond established risk stratification parameters. CLINICAL TRIALS.GOV: NCT00712101 and NCT01612312.
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Authors | Andreas Schuster, Sören J Backhaus, Thomas Stiermaier, Johannes T Kowallick, Alina Stulle, Alexander Koschalka, Joachim Lotz, Shelby Kutty, Boris Bigalke, Matthias Gutberlet, Gerd Hasenfuß, Holger Thiele, Ingo Eitel |
Journal | European heart journal. Cardiovascular Imaging
(Eur Heart J Cardiovasc Imaging)
Vol. 20
Issue 11
Pg. 1262-1270
(Nov 01 2019)
ISSN: 2047-2412 [Electronic] England |
PMID | 31329854
(Publication Type: Journal Article, Multicenter Study)
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Copyright | Published on behalf of the European Society of Cardiology. All rights reserved. © The Author(s) 2019. For permissions, please email: [email protected]. |
Chemical References |
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Topics |
- Aged
- Contrast Media
- Female
- Germany
- Humans
- Magnetic Resonance Imaging
(methods)
- Male
- Middle Aged
- Myocardial Infarction
(diagnostic imaging, physiopathology, therapy)
- Prognosis
- Randomized Controlled Trials as Topic
- Risk Assessment
- Risk Factors
- Ventricular Dysfunction, Left
(diagnostic imaging, physiopathology, therapy)
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