Key result
This review proposes a taxonomy of segmental myocardial systolic dysfunction to standardize the nomenclature of diverse myocardial pathologies in ischemic heart disease and cardiomyopathy.
This review proposes a taxonomy of segmental myocardial systolic dysfunction to resolve inconsistent nomenclature, such as the interchangeable use of 'viable' and 'hibernating' myocardium.
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May improve reporting consistency in myocardial dysfunction; leaves open prospective validation before clinical adoption.
The terms used to describe different states of myocardial health and disease are poorly defined. Imprecision and inconsistency in nomenclature can lead to difficulty in interpreting and applying trial outcomes to clinical practice. In particular, the terms 'viable' and 'hibernating' are commonly applied interchangeably and incorrectly to myocardium that exhibits chronic contractile dysfunction in patients with ischaemic heart disease. The range of inherent differences amongst imaging modalities used to define myocardial health and disease add further challenges to consistent definitions. The results of several large trials have led to renewed discussion about the classification of dysfunctional myocardial segments. This article aims to describe the diverse myocardial pathologies that may affect the myocardium in ischaemic heart disease and cardiomyopathy, and how they may be assessed with non-invasive imaging techniques in order to provide a taxonomy of myocardial dysfunction.
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McDiarmid et al. (2016) conducted a review in Ischaemic heart disease and cardiomyopathy. Non-invasive imaging techniques was evaluated. This review proposes a taxonomy of segmental myocardial systolic dysfunction to standardize the nomenclature of diverse myocardial pathologies in ischemic heart disease and cardiomyopathy.
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