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Heart failure
Heart failure, also known as congestive heart failure, is a chronic condition in which the heart is unable to pump enough blood to meet the body's needs. This results in a buildup of fluid in the body, leading to symptoms such as shortness of breath, fatigue, and swelling in the legs and abdomen. Heart failure can affect the heart's ability to function properly and can be classified as either systolic or diastolic heart failure, depending on whether the heart's pumping function (systole) or filling function (diastole) is impaired.