Coronary Artery Disease (CAD) Pathophysiology of CAD Coronary artery disease is when the heart muscle is weakened and cannot pump the oxygen and nutrition’s needed efficiently (Huether & McCance, 2017; Hammer & McPhee, 2019). CAD decreased myocardial blood supply causing ischemia (Huether & McCance, 2017). Ischemia is defined as a temporary loss of blood supply to the cell, which becomes damaged and cannot function normally (Huether & MCCance, 2017). Ischemia occurs two ways when there is an increasing demand for oxygen related to the supply, or a decrease in oxygen supply (Hammer & McPhee, 2019). The leading cause of CAD is atherosclerosis, which is fatty streaks in the vessels that cause narrowing of arteries (Hammer & McPhee, 2019). Aging and CAD The normal aging process will increase the thicken and stiffness of vessels and arteries in the heart (American Heart Association, [AHA], 2019). Thinking and stiffening of veins will increase the need for the blood to pump harder, which increases blood pressure. Coronary artery disease is common amongst the elderly population (Madhavan, Gersh, Alexander, Granger, & Stone, 2018).
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- Fall '19