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Atherosclerosis.

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Presentation on theme: "Atherosclerosis."— Presentation transcript:

1 Atherosclerosis

2 Normal coronary artery

3 Early coronary atherosclerosis

4

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6 Atherosclerosis Chronic, progressive, multifocal disease of the vessel wall intima within large /medium sized arteries Atheroma or plaque formation İntimal thickening (smooth muscle cell proliferation) Lipid accumulation

7 Arteriosclerosis Diffuse process that involves distal vessels well

8 Basic processes in atherosclerosis

9 Stage I monocyte adhesion/migration through Vessel wall into intima to become maccrophages Stage II foam cells (lipid containing macrophages) in intima Stage III appearance of extracellular lipid

10 Fibrous Cap and Core formation
Stage IV Core formation (extracellular lipid coalescing into the center of the plaque) Stage VI Thrombosis Stage V Fibrous Cap and Core formation (fully formed lipid core and well developed cap of fibrous tissue seperating the core from the lumen)

11 Stable angina. Eccentric coronary stenosis

12 Stable angina. Eccentric coronary stenosis
thick cap

13 Unstable angina with plaque disruption
The plaque cap is torn, projects into the lumen, exposing a mass of thrombus filling the lipid core

14 Unstable angina with plaque disruption

15

16 Causes High blood cholesterol High blood pressure Smoking Obesity
Lack of physical activity

17 Risk Factors Uncontrollable Controllable Sex Hereditary Race Age
High blood pressure High blood cholesterol Smoking Physical activity Obesity Diabetes Stress and anger

18 Treatment Lipid lowering drugs Life style modification


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