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Diastolic function evaluated with pulse Doppler of the mitral inflow. A, Normal diastolic function (peak E wave velocity [E] over peak A wave velocity [A] ratio > 1). B, Impaired LV relaxation (E/A ratio < 1). C, Pseudonormal LV filling pattern (during normal respiration E/A ratio > 1). D, During Valsalva maneuver there is reversal of the ratio (E/A ratio < 1) due to LV preload reduction. See Figure 1 legend for expansion of abbreviations.
