Failure Systolic Heart Failure - Systolic heart failure occurs when the pumping action of the heart becomes less powerful It is usually measured with the help of 'ejection fraction' 'Ejection fraction' is calculated by dividing the amount of blood discharged from the left ventricle by the maximum volume of blood remaining in the left ventricle when the heart is relaxed (at the end of the diastole) The normal ejection fraction should be greater than 55%; anything below it is diagnosed as systolic heart failure.

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