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Cv ds
 

Cv ds

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    Cv ds Cv ds Presentation Transcript

    • Cardiovascular Disease
    • CVD
      • Heart diseases are responsible for more death than any other cause in UK.
      • Around 20% of the death are caused by cardio vascular diseases.
    • Atherosclerosis
      • Atherosclerosis is the hardening of the arteries due to fat deposition.
    • Plaque
      • A fatty deposit hardened by calcium salts and fibrous tissue which may form on the lining of an artery.
      • Plaques formed in coronary artery (supplying blood to the walls of heart) and carotid artery (supplying blood to the head) are more dangerous.
    • Atherosclerosis
      • High blood pressure and chemicals in tobacco smoke can cause damage to the endothelium of blood vessels.
      • Atherosclerosis usually occurs in arteries rather than veins.
      • This is because the blood flows under high pressure in arteries which can cause damage to the endothelium.
    • Atheroma
      • The damage in the endothelium attracts white blood cells.
      • Chemicals, especially cholesterol, is deposited in the area and lead to the formation of a fatty deposit called atheroma.
      • Fibrous tissue and calcium salts also build up around the atheroma, turning it into a hardened plaque.
      • The part of the artery wall hardens and becomes less elastic.
      • This condition is called atherosclerosis .
    • Atherosclerosis
    • Problems caused by atherosclerosis
      • Blood accumulates behind the plaque and the artery wall bulges and will eventually become weakened.
      • This is known as aneurysm .
      • The weakened artery may split open leading to internal bleeding ( hemorrhage ).
    • Problems caused by atherosclerosis
      • Increase in blood pressure can damage organs such as kidneys, eyes and brain.
      • If the blood pressure increases well beyond normal, more materials will be lost through urine.
      • Increase in blood pressure can cause damage to the capillaries of the eye and can lead to blindness.
    • Problems caused by atherosclerosis
      • Bleeding from capillaries into the brain results in stroke.
    • Angina
      • Chest pain or discomfort that occurs when the heart isn't getting enough oxygen because of reduced blood flow to the cardiac muscle.
      • Usually the result of atherosclerosis and is a symptom of coronary heart disease.
    •  
    • Angina can be prevented by
        • eating a low-fat diet
        • taking regular exercise
        • losing weight and
        • not smoking
      • Symptoms of angina can be reduced with the usage of drugs which will dilate blood vessels.
      • Heart bypass surgery may be required in serious conditions.
    • Thrombosis
      • Clot that forms in a blood vessel.
      • Platelets come into contact with the plaque and the clotting process begins.
    • Coronary Thrombosis
      • A clot that gets stuck in a coronary artery is known as a coronary thrombosis.
    • What can we do?
      • Important to react quickly.
      • Call an ambulance.
      • Give the person two full strength aspirin tablets.
    • Stroke
      • A stroke is caused by an interruption to the normal blood supply in an area of the brain.
      • This may be caused due to the breaking of blood vessels (due to high BP) or due to a blockage to the blood vessels supplying to the brain.
    • Symptoms of stroke
      • dizziness
      • confusion
      • slurred speech
      • blurred vision
      • numbness
      • paralysis