Coronary heart disease
i. What is the cause of the disease? Causes of coronary heart disease:
smoking,
radiotherapy to the chest,
hypertension,
diabetes,
hyperlipidemia.
The component of blood/ blood vessel that is affected by the disease:
coronary circulation
How it is affected:
inadequate circulation to cardiac muscle and surrounding tissue.
It affects the artery,which transports oxygen-rich blood to the heart, from the lungs, and from the heart to the rest of the body. The disease can make th
e arteries have spasms, which means that the heart does not have a steady flow of oxygen-rich blood.
iv. How does this blood component/ structure differ from the rest in the circulatory system?
v. How will the absence of the blood component / structure affect t
The artery has a thick wall and it supplies our heart muscles with oxygen-rich blood. The circulatory system is the whole system, including the artery. Artery is one of the organs close/connected to the heart.How does this blood component/ structure differ from the rest in the circulatory system?
Source: http://www.nhlbi.nih.gov/health/dci/Diseases/Cad/CAD_WhatIs.html
v. How will the absence of the blood component / structure affect t
he health of the patient?
The body will not be able to pump blood around the body.
Lifestyle changes
Lifestyle changes that may be useful in coronary disease include.
Weight control
Smoking cessation
Exercise
Healthy diet
Surgical intervention
Angioplasty,Stents,Coronary artery bypass
vii. How technology is used to save lives with respect to the disease investigated?Technology is used:
To research on medications such as:
Cholesterol-lowering medications, which decreases the amount of cholesterol in the blood, especially LDL (the "bad" form of cholesterol)
Aspirin, which thins the blood, and works as an anti-coagulant(a substance which changes from solid to semisolid), which reduces the tendency for blood to clot and block a coronary artery, causing a heart attack.
In surgical procedures such as:
Radiation brachytherapy, where the coronary artery segment is reopened and exposed to radiation. The procedure is performed in a catheterization laboratory by radiation oncologists and radiation physicists.
Laser surgery, which is is a surgical procedure that creates channels in the heart to allow blood to flow more easily. Using a catheter (thin wire) with a laser attached, the surgeon makes many tiny holes in your heart muscle. The holes encourage new blood vessels to grow in the diseased heart muscle.
Source:http://www.mayoclinic.org/coronary-artery-disease/treatment.html
http://www.nhs.uk/Conditions/Coronary-heart-disease/Pages/Treatment.aspx
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