Circulatoin Aids Mindmap
- Created by: Sophie
- Created on: 27-04-13 10:04
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- Circulation Aids
- Repairing the heart
- Mechanical Valves, less drastic than whole heart transplant but high surgery risk, problems with blood clots
- Artificial Blood
- Stents
- Coronary heart disease- arteries blocked by fatty deposits. Arteries narrow and blood flow restricted- heart attacks
- Tubes inserted insied arteries keeping them open and allowing blood flow to the heart muscles, keeping their heart beating
- Lower risk of heart attack of people with coronary disease
- Over time the artery can narrow again as the stent irritates the artery causing scar tissue to grow. Patient has to take drugs to prevent blood clotting on the stent
- Repairing the heart
- A blood substitute- e.g a saline solution
- Replaces lost volume of blood
- Safe (unless bubbles)
- Saves lives- time to produce more blood cells
- Blood transfusion if necessary, but atm these artificial bloods have side effects
- Artificial hearts- mechanical device, usually temporary until heart donor is found
- ADVANTAGE: not rejected by immune system- metal or plastic not 'foreign tissue'
- DISADVANTAGES: risk of surgery, heart may wear out, blood clots and strokes risk, drugs needed to thin the blood- bleeding problems in accident
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