Congestive heart failure (CHF) is a chronic progressive condition that affects the pumping power of your heart muscle. While often referred to simply as heart failure, CHF specifically refers to the stage in which fluid builds up within the heart and causes it to pump inefficiently. You have four heart chambers.
Heart failure can occur if the heart cannot pump (systolic) or fill (diastolic) adequately. Symptoms include shortness of breath, fatigue, swollen legs and rapid heartbeat. Treatments can include eating less salt, limiting fluid intake and taking prescription medication. In some cases a defibrillator or pacemaker may be implanted.