Echocardiographic Strain in Clinical Practice - 26/07/19

Doi : 10.1016/j.hlc.2019.03.012

Siddharth J. Trivedi, BSc, BMedSci, MBBS, FRACP ^a,^b, Mikhail Altman, MD, PhD, FRACP ^a,^b, Tony Stanton, MBChB, PhD, FRACP ^c,^d,^e, Liza Thomas, MBBS, PhD, FRACP ^a,^b,^f,^⁎
^a Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
^b Department of Cardiology, Westmead Hospital, Sydney, NSW, Australia
^c Department of Cardiology, Sunshine Coast University Hospital, Brisbane, Qld, Australia
^d University of the Sunshine Coast, Brisbane, Qld, Australia
^e School of Medicine, Griffith University, Sunshine Coast University Hospital, Brisbane, Qld, Australia
^f South Western Sydney Clinical School, University of New South Wales, Sydney, NSW, Australia

^⁎Corresponding author at: Department of Cardiology, Westmead Hospital, PO BOX 533, Wentworthville, NSW 2145, Australia.Department of CardiologyWestmead HospitalPO BOX 533WentworthvilleNSW2145Australia

Résumé

The accurate evaluation of left ventricular (LV) function has been central to monitoring of therapy, institution of specific therapeutic interventions and as a prognostic marker for risk stratification in a variety of cardiovascular conditions. However, LV ejection fraction, the most commonly used measure of LV systolic function, is a ‘coarse’ measure of global LV function, with several limitations. Strain analysis, a measure of myocardial deformation, has come to the forefront more recently as a more sensitive measure of myocardial function than LV ejection fraction. Its utility in detection of early subclinical LV dysfunction, defining regional variation in specific cardiomyopathies, utility to monitor improvement with therapy and as a prognostic marker in a variety of cardiac conditions has led to its increasing use in clinical practice. This review will briefly summarise specific methodological aspects, use in diagnosis and prognostic utility of strain analysis in various cardiovascular conditions.

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Keywords : Echocardiography, Global longitudinal strain, Speckle tracking, Left ventricular function