Unformatted text preview: Prevention of Cardiovascular Disease Cardiovascular Disease (CVD) Any disease that affects the heart or blood vessels Number one cause of death in U.S. – 61 million Americans have some form of CVD Leading cause of death in men between the ages of 35 and 44 Annual economic costs of cardiovascular Annual diseases and other diseases in the U.S. diseases Four Common Types of Four Cardiovascular Diseases Cardiovascular Arteriosclerosis – Atherosclerosis - inflammatory response resulting in Atherosclerosis proliferation of tissue within the arterial wall which may result in obstruction of blood flow may Coronary heart disease (CHD) – also called coronary artery disease Stroke – brain damage occuring when blodo supply to the brain is reduced for too long Hypertension – abnormally high blood pressure Stages of atherosclerosis. The coronary arteries carry blood to the The working heart muscle. working Example of a myocardial infarction. Coronary Heart Disease
Basically, an imbalance between blood supply (too little) and demand placed on the heart
Coronary Artery O2 extraction Diastolic filling time Supply Demand - Heart rate
- Amount of blood returned to the heart -Amount of force the heart has to pump against -Force of contraction in the heart Risk factors for CHD Major risk factors – – – – – – – Cigarette smoking Hypertension High blood cholesterol levels Physical inactivity Family History High blood glucose levels Obesity Risk factors for CHD Contributory risk factors – Gender – Age – Stress Your risk of developing coronary heart disease Your increases as the number of risk factors increase. increases Reduction of CHD Risk Factors Stop smoking Exercise and proper diet – see next slide Reduction in CVD risk factors as well as mortality Weight loss Stress management Miles per week McArdle, Katch, and Katch, 5th ed. Total blood cholesterol levels and your risk of Total CHD. CHD. Illustration of brain damage due to a stroke. The percentage of people in the U.S. with The hypertension. hypertension Summary Cardiovascular disease is the number one cause of death in the U.S. Risk factors: major and contributory. Lifestyle may be modified to reduce risk associated with smoking, hypertension, high cholesterol, inactivity, stress. ...
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- Spring '11