How does coronary artery disease disrupt homeostasis - Doctor answers

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How does coronary artery disease disrupt homeostasis?

How does coronary artery disease disrupt homeostasis?

Blocks blood flow: Homeostasis is a process whereby the body's systems are kept balanced in good working order. In the heart chemical signals from heart muscle that is not getting enough oxygen will cause blood vessels to dilate and increase the blood flow to those tissues. Coronary artery disease can prevent this increase in blood flow by creating blockages in the coronary arteries. ...Read more

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Dr. Creighton Wright
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Artery (Definition)

Arteries are defined as blood vessels which carry blood away from the heart (to either the body or lungs). Arteries: higher pressure, thicker walls, stretch (pulse) with each heart contraction & deliver blood to the arterioles which control the flow to individual capillaries. Veins are blood vessels which carry blood from capillaries back to the heart (body to right heart; ...Read more


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How does coronary artery disease lead to myocardial ischemia?

How does coronary artery disease lead to myocardial ischemia?

By blocking the flow: In young, healthy individuals the inner lining of the blood vessels is clean and smooth. Overtime, for many reasons, the inner surface of the heart blood vessels (coronary arteries) may start becoming bumpy/lumpy or blocked due to fat (cholesterol) deposits called "atherosclerotic plaque". This in turn reduces the amount of blood flow available causing "ischemia" (oxygen deprivation). ...Read more

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Where does coronary artery disease originate?

Where does coronary artery disease originate?

CAD: Coronary artery disease, just as disease in other arteries, is the result of a long time process initiated by:
1. Genetic pre-disposition
2. Uncontrolled/untreated high blood pressure, diabetes, cholesterol/triglycerides
3. Smoking, obesity, lack of exercise, stress. ...Read more

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How does coronary artery disease develop in the body?

How does coronary artery disease develop in the body?

Slowly: Low density lipoprotein (ldl) is taken up by endothelial cells in blood vessels. The LDL is broken down (oxidized) and absorbed by macrophages within the wall of the blood vessel. Ultimately, the macrophage which is full of oxidized LDL will die. The dead cells and cholesterol accumulate in the wall of the artery interfering with the flow of blood. ...Read more

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How does coronary artery disease affect someone's body?

How does coronary artery disease affect someone's body?

Symptoms/lifespan: Coronary artery disease affects the quality of life and the length of life. Quality of life is affected by reduced functional capacity (ability to do things), chest pain, shortness of breath, loss of employment, and hospitalization. Length of life is reduced as a result of sudden death and myocardial infarction. ...Read more

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Does coronary artery disease always cause shortness of breath?

Yes: Coronary artery disease, angina, and heart attack are a continuum of a process.
With these congestion f the lungs can occur, or blood clots can embolize, or cardiac output can be reduced.
All affect oxygen delivery and feeling of shortness of breath. ...Read more

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Does coronary artery disease directly cause ventricular tachycardia or is it after heart attacks and damage etc?

Does coronary artery disease directly cause ventricular tachycardia or is it after heart attacks and damage etc?

Both: Myocardial infarction (heart attack) and scarring of the heart can lead to arrhythmias. Also, if coronary artery disease (CAD) causes impairment in flow of blood, ischemia may lead to arrhythmias. However, not all arrhythmias are due to CAD or mi. ...Read more

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Can coronary artery disease be treated?

Certainly: Evaluation by a primary care & cardiologist, reduce weight - BMI < 28, eat right: low fat, low (bad) cholesterol, consider high quality fish oil, cessation of smoking, exercise (if you are healthy enough per your physician), reduce alcohol consumption, take prescribed medications as directed. Know your numbers: cholesterol, blood pressure, blood sugar and work with your physician to optimize them. ...Read more

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Can coronary artery disease be reversed?

Can coronary artery disease be reversed?

Yes: Yes if on high dose statins for years it is possible to stabilize and slightly improve. ...Read more

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How can coronary artery disease be cured?

Not Really: Coronary artery disease, also referred to as CAD or cvd, can be controlled or ameliorated with diet, exercise, cessation of smoking, moderation of alcohol intake, diabetes control and medications. ...Read more

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How can coronary artery disease be treated?

How can coronary artery disease be treated?

Minimize the Drivers: Optimize lipoprotein concentrations (ldl ; hdl, not cholesterol), low normal blood glucose: hba1c <5.0, low normal bp, don't smoke, stay physically active, confront and resolve stress, etc. This is the best approach. Conventional medical methods, angioplasty, stents, bypass surgery, etc. Only partially treat the symptoms ; further complicate the disease process (i have experience will all these). ...Read more

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What happens during coronary artery disease?

What happens during coronary artery disease?

AtherosclerosisClots: The key issue is atherosclerosis: accumulation of white blood cells in the walls of arteries, typically starts in childhood & is primarily driven by lipoproteins (proteins which transport fat in the water outside cells) is dominant human behavior yet is typically ignored for decades because it remains asymptomatic until plaque ruptures release debris, triggers clots & suddenly blocks blood flow. ...Read more

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How to know if I have coronary artery disease?

How to know if I have coronary artery disease?

Cath lab, CT, scans: CT scan can do a calcium count, which is related to disease. Cath lab can create dye studies of the arteries, which show blockage. A myocardial perfusion scan can show abnormal areas of blood flow on the heart, which is related to blocked arteries. 256 bit CT scans are getting very good at showing artery disease also. ...Read more

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What are the tests for coronary artery disease?

What are the tests for coronary artery disease?

Several test.: There are several tests for coronary artery disease. A thorough history and physical exam, ekg, ct scan, nuclear studies are all helpful but the best test is a cardiac catheterization. The cardiologist will place a small catheter through a groin vessel up to the heart and inject a special dye into the coronary arteries. The pictures will show if there are any blockages or not. ...Read more

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What are other names for coronary artery disease?

Few names: Atherosclerotic heart disease, angina, blocked arteries from plaque buildup, acute coronary syndrome. ...Read more

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What is the diagnosis for coronary artery disease?

Various: If you're asking how CAD is diagnosed, there are actually many ways. Direct testing can show it (ie stress test, calcium scan, catheterization). We also consider the presence of vascular disease elsewhere in the body to be equiv. To having cad. So if someone has blocked circulation in the legs, or a history of certain kinds of stroke, they'd be treated like they have cad. It's a systemic process. ...Read more

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What are common causes of coronary artery disease?

What are common causes of coronary artery disease?

Here are some causes: Smoking, high blood pressure, diabetes, high cholesterol, sedentary lifestyle, family history, old age are the most common causes. ...Read more

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What is the principal sign of coronary artery disease?

What is the principal sign of coronary artery disease?

Angina: At early stages it may not cause symptoms. Once blockages become more significant, chest pain and/or shortness of breath occur, usually worse with activity. ...Read more

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Dr. Rick Koch
2,477 Doctors shared insights

Coronary Artery Disease (Definition)

The leading cause of death and disability in adults in the U.S. It develops when lipid (fatty) plaques builds up in the arteries, thereby stopping blood flow to the organ supplied by that artery. If the artery supplies the heart, blockage causes a heart attack. If the blockage is in a brain vessel, the ...Read more


Dr. Jeffrey Wint
2 Doctors shared insights

Coronary Artery (Definition)

Coronary artery is the name given to the blood vessels that supply the myocardium. The word coronary was coined by the first anatomists that noticed that if you remove all muscle from the heart the remaining vessels resemble the shape of a corona or crown. ...Read more