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Heart failure may involve systolic or diastolic dysfunction. In diastolic dysfunction, not enough blood is able to fill the heart before pumping. In systolic dysfunction, the heart is too weak to pump out enough blood. Both conditions lead to poor circulation.

Heart failure may involve systolic or diastolic dysfunction. In diastolic dysfunction, not enough blood is able to fill the heart before pumping. In systolic dysfunction, the heart is too weak to pump out enough blood. Both conditions lead to poor circulation.
Heart failure may involve systolic or diastolic dysfunction. In diastolic dysfunction, not enough blood is able to fill the heart before pumping. In systolic dysfunction, the heart is too weak to pump out enough blood. Both conditions lead to poor circulation.