Abstract Assessment of left atrial strain (LAS) using cardiac magnetic resonance (CMR) is gaining interest in cardiology as a novel parameter, as it quantifies the left atrium’s (LA) deformation throughout the cardiac cycle. Traditionally, LA function was inferred from left ventricular ejection fraction and LA volume. However, recent studies emphasize the prognostic significance of directly analyzing atrial function, particularly in atrial fibrillation (AF), heart failure, and arterial hypertension. CMR provides a thorough evaluation of cardiac anatomy and function, enabling precise […]

Introduction Giant left atrium is a rare condition, and most cases described in the literature are associated with rheumatic disease. However, some clinical descriptions suggest a nonrheumatic etiology for this condition, in which characteristic findings of rheumatic disease are not identified or anatomopathological findings do not suggest a specific etiology. Atrial fibrillation is present in almost all cases and contributes to the maintenance of left atrial remodeling and persistent changes in structure and function. […]

Abstract Background Elevation of left ventricular filling pressures secondary to diastolic dysfunction plays a central role in the pathophysiology of heart failure. However, international guidelines still fail to diagnose diastolic dysfunction in some cases. Objective To evaluate left atrial reservoir function in indeterminate diastolic function Method Observational study with individuals in sinus rhythm and preserved left ventricular ejection fraction, submitted to echocardiogram and divided into three groups according to the combined analysis of E/e´ ratio and indexed left atrium volume: […]

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