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early to atrial ratio (E/A ratio)
Ratio obtained from echocardiogram.
Normal left ventricular diastolic trans-mitral inflow pattern into the left ventricle, Early (E) vs Atrial (A) contractile phase, (E/A < 1.0).
With LV diastolic dysfuction, increased dependence of LV filling on atrial contraction. Atrial fibrillation obliterates atrial phase.
Related
left ventricular diastolic dysfunction; heart failure with preserved ejection fraction (HFpEF)
General
laboratory analysis