Definition: Heart decompensation due to abnormal filling of a usually stiffer-than-normal left ventricle with normal systolic function (i.e., normal ejection fraction). Left ventricular hypertrophy, thickening of the left cardiac muscle, is a common cause for the development of diastolic heart failure.
Synonym(s): HEFpEF (heart failure with preserved ejection fraction), HEFnEF (heart failure with normal ejection fraction)
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