Global longitudinal active strain energy density (GLASED): a powerful prognostic marker in a community-based cohort

Author:

Aung Nay12ORCID,MacIver David H34ORCID,Zhang Henggui3,Chadalavada Sucharitha12,Petersen Steffen E12

Affiliation:

1. William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University London , Charterhouse Square, London EC1M 6BQ , UK

2. Barts Heart Centre, St Bartholomew’s Hospital, Barts Health NHS Trust , West Smithfield, London EC1A 7BE , UK

3. Department of Astronomy and Physics, Biological Physics Group, University of Manchester , Manchester M13 9PL , UK

4. Department of Cardiology, Taunton and Somerset Hospital , Somerset TA1 5DA , UK

Abstract

Abstract Aims Identifying the imaging method that best predicts all-cause mortality, cardiovascular adverse events, and heart failure risk is crucial for tailoring optimal management. Potential prognostic markers include left ventricular (LV) myocardial mass, ejection fraction, myocardial strain, stroke work, contraction fraction, pressure–strain product, and a new measurement called global longitudinal active strain density (GLASED). This study sought to compare the utility of 23 potential LV prognostic markers of structure and contractile function in a community-based cohort. Methods and results The impact of cardiovascular magnetic resonance image–derived markers extracted by machine learning algorithms was compared with the future risk of adverse events in a group of 44 957 UK Biobank participants. Most markers, including the LV ejection fraction, have limited prognostic value. GLASED was significantly associated with all-cause mortality and major adverse cardiovascular events, with the largest hazard ratio, highest ranking, and differentiated risk in all three tertiles (P  ≤ 0.0003). Conclusion GLASED predicted all-cause mortality and major cardiovascular adverse events better than conventional markers of risk and is recommended for assessing patient prognosis.

Funder

British Heart Foundation

Medical Research Council

Biomedical Research Centre

European Union

London Medical Imaging

UK Research and Innovation

Publisher

Oxford University Press (OUP)

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