Why the study?
There is no consensus on a unified definition of atrial functional mitral regurgitation, with published studies using varying cutoffs for LVEF, LA volume index, and LV dimensions.
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Design
Meta-analysis
Atrial functional mitral regurgitation (aFMR) represents a subtype of secondary mitral regurgitation (MR) closely associated with left atrial (LA) enlargement and mitral annular dilation in the setting of preserved left ventricular ejection fraction (LVEF), absence of primary mitral valve pathology, and commonly, presence of atrial fibrillation (AF).1-3 However, there is no consensus on a unified definition of aFMR. Published studies had different cutoffs for LVEF, LA volume index, and left ventricular dimensions.
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Hatab et al. (2023) studied this question.
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