Question 1

why is myocardial tissue different from other tissues?

Accepted Answer

Myocardium: The heart muscle is striated muscle which contracts on its own. It's the only muscle that contracts on its own.

Question 2

what does myocardial ischemia means?

Accepted Answer

Cardiac: Myocardial ischemia is what causes chest pain or angina. This occurs when there is plaque that blocks the arteris and reduces flow to the heart muscle.

Question 3

what does provokable myocardial ischemia mean?

Accepted Answer

Activity or emotion: The heart may have adequate blood flow to  function normally at rest or lower levels of activity.   However when you increase the nutrition needs of the heart as with exercise or strong emotions the blood flow is insufficient due to blockages and provokes ischemia which can be detected by various forms of stress test.  Chest pain, shortness of breath & fatigue are the common symptoms of ischemia.

Question 4

how dangerous  is a myocardial bridge ?

Accepted Answer

Can be normal: A myocardial bridge is when a coronary artery the normally runs on top of the heart actually dives into the muscle and is compressed with each heart beat. This isn't as bad ad it sounds because most blood flow occurs during diastole or when the heart is relaxed. Very rarely, some bridges can be symptomatic and cause angina symptoms but this should be a diagnosis of exclusion.

Question 5

where do most myocardial infarctions occur?

Accepted Answer

Varies: You have three main blood vessels feeding the heart - the right coronary, left circumflex, and the left anterior descending arteries.  Narrowing can occur in any of the vessels and can be significant in any one or combination of these vessels.  Bypass of the left anterior descending artery has shown the best change for improvement in life expectancy.

Question 6

what conditions does a myocardial biopsy detect?

Accepted Answer

Myocardial biopsies: Myocardial biopsies can be used to diagnose a number of things microscopically, including  transplant rejection (in patients with heart transplant), inflammation (myocarditis), drug toxicity, and causes of  hypertrophic or restrictive cardiomyopathy (for example, amyloid,hemochromatosis, sarcoid or other more rare conditions). Neoplasms (benign or cancer) can also be diagnosed.

Question 7

can any doc tell me what's myocardial infraction?

Accepted Answer

Hmmmm: Not sure what you mean by infraction. This is not a common term used in cardiac care.  A typo or wrong word. Did you mean infarction?

Question 8

how can troponin relate to myocardial infarctions?

Accepted Answer

Enzyme from heart: Troponin is contained within heart muscle cells and in a heart attack the damaged cells 'leak" the troponin into the blood and the elevated levels can tell doctors the heart has been injured. If other clinical evidence is consistent this can help diagnose a heart attack.

Question 9

is there a connection with cholesterol and myocardial infarctions?

Accepted Answer

Yes: Populations studies have shown that people with high blood cholesterol have higher incidence of myocardial infarction and other vascular disorders.

Question 10

myocardial infarction causes?

Accepted Answer

Many poss causes: Almost all heart attacks are the result of fatty deposits on the inside of arteries that break open and cause clotting which will blocks the artery (and the blood from flowing to the part of the heart the artery feeds).  Family history, fatty diet, smoking, high blood pressure, diabetes and other disorders can all contribute to this process.

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Fatty myocardial degeneration due to obesity

A member asked:

Why is myocardial tissue different from other tissues?

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What does myocardial ischemia means?

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What does provokable myocardial ischemia mean?

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How dangerous is a myocardial bridge ?

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Where do most myocardial infarctions occur?

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What conditions does a myocardial biopsy detect?

A member asked:

Can any doc tell me what's myocardial infraction?

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How can troponin relate to myocardial infarctions?

A member asked:

Is there a connection with cholesterol and myocardial infarctions?

A member asked:

Myocardial infarction causes?

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