Arq Bras Cardiol: Imagem cardiovasc. 2024; 37(1): e20240003
Left Atrial Strain: Clinical Applications and Prognostic Implications
DOI: 10.36660/abcimg.20240003i
Abstract
Left atrial (LA) strain, obtained using two-dimensional speckle tracking echocardiography (2DSTE), has emerged as an accurate method for evaluating LA function. Recently, it has gained prominence in clinical practice due to its significant prognostic value in various cardiovascular diseases, standing out due to its greater sensitivity compared to traditional methods of volumetric analysis and Doppler parameters.
This review article addresses the complex function of the LA and its close interdependence with left ventricular (LV) function, highlighting its relevance in cardiac performance. The LA performs three distinct functions, acting as a reservoir during ventricular systole, as a conduit in early diastole, and as a contractile chamber during the atrial contraction phase.
This review analyzes the normal patterns of LA strain and its application in various clinical conditions, such as atrial fibrillation (AF), heart failure, coronary artery disease, obesity, diabetes mellitus, hypertrophic cardiomyopathy, and cardiac amyloidosis. The crucial role of atrial strain in rheumatic mitral stenosis (MS) is highlighted due to its capacity to predict clinical outcomes.
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