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Pathophysiology of heart failure. Elevated systemic vascular resistance results in left-sided heart failure that leads to right-sided heart failure. Systemic vascular resistance and preload are exacerbated by the renin–angiotensin–aldosterone system. ADH, antidiuretic hormone; LA, left atrium; LV, left ventricle; LVEDP, left ventricular end-diastolic pressure; RV, right ventricle. (Source: Redrawn from McCance & Huether, 2002.)

Pathophysiology of congestive heart failure is the structural and functional changes that are associated with heart failure. Actually congestive heart failure or heart failure is a pathophysiological state in which the heart will not pump enough blood to the various parts of the body to meet their metabolic needs.