Evaluation of different Treatment Methods

• Multicellular organisms require transport systems to supply their cells and remove waste products.
• In humans, one of the functions of the circulatory system is to transport substances.
• The heart is a crucial part of the circulatory system.
• Circulation is controlled by the heart rate.
• Blood vessels are a part of the circulatory system.
• White blood cells are a part of the circulatory system.
• Development of cardiovascular disease can be evaluated.
• Treatment methods for cardiovascular disease include drugs and heart transplants.
• Drugs used alongside heart conditions and transplants can prolong life.
• Statins are drugs used to treat cardiovascular disease.
• Statins can reduce the risk of heart attack and may have beneficial effects on other conditions.
• Statins are not suitable for people with liver disease and may cause side effects.
• Heart transplants can improve the quality of life but the recovery time is long.
• Blood clots may stick to mechanical valves, and anti-blood clotting drugs need to be taken.
• Stents widen coronary arteries that have not responded to drug treatment.

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• There is a risk of rejection by the body's immune system.
• Replacement heart valves restore blood flow through the heart.
• Statins are used to reduce high cholesterol levels that have genetic causes.
• Statins must be taken for life and should not be taken if pregnant or breastfeeding.
• Biological valves may wear out.
• Heart transplants improve quality of life, but there are few donor hearts available and the recovery time is long.
• Stents widen coronary arteries that have not responded to drug treatment.
• Statins may have beneficial effects on other conditions.
• Drugs such as statins can reduce the risk of heart attack.
• Statins have been shown to decrease 'bad cholesterol' and increase 'good cholesterol'.
• In a minority of cases, further treatment is required.
• The recovery time is short following insertion of the stent.