Presentation on theme: "Cardiovascular Disease"— Presentation transcript:
1 Cardiovascular Disease Cardiovascular disease – set of diseases that affect the heart and blood vessels~ 40% deaths in U.S.Heart muscle requires O2 rich blood to surviveCoronary arteries – branch off of the aorta and supply the heart muscle with O2If a coronary artery becomes blocked the heart tissue without blood will quickly dieHeart attack – failure of the heart to function properly
2 Atherosclerosis Atherosclerosis – chronic cardiovascular disease Cholesterol and other substances build up in the arteries called plaqueThis build up narrows passage, decreases blood flow, increases blood pressureLifestyle changes – no smoking, healthy diet, increase exercise
3 Treatments for cardiovascular disease Drugs to lower cholesterolAngioplasty – inserting a balloon catheter to compress plaque against the vessel wall therefore opening clogged arteriesStent – small wire mesh tubes to prop open the arteriesBy-pass surgery – blood vessels removed from leg and sewn onto heart to shunt blood around a blocked arteryHeart transplant or artificial heartThese only treat symptoms not the causes…problems will return if lifestyle changes are not changed!
4 Cardiovascular Risk Factors You can control…DietHigh cholesterolHDL (good)LDL (bad)Weight (obesity)High blood pressureCigarette smokingPhysical inactivityStressYou cannot control…GeneticsMale sexIncreasing ageDiabetes