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Myocardial infarction (MI) can lead to heart failure in numerous ways. First of all, early on, the heart muscle does not contract well because it is not receiving enough oxygen and other necessary substrates, so stroke volume is decreased, which may lead to congestive heart failure. Later on, if the MI is aborted with thrombolytics or with a cardiac catheterization and thrombectomy, the myocardium may be stunned, or hibernating, because of the lack of oxygen, and may return to normal function over time. If the MI completes, the portion of cardiac muscle that was affected is dead. Depending on how significant a portion that is, losing the muscle alone may result in heart failure. The dead portion of the heart will later turn into a scar, which is noncontractile and also does not allow for the normal stretch, so it may affect preload and contractility in that way as well, decreasing cardiac output and possibly leading to congestive heart failure.
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What damage does a heart attack cause?
A heart attack or myocardial infarction (MI) can cause damage by brain damage, can lead to stokes, and also have the risk of having a seconf MI.
Can Cor pulmonale lead to heart failure?
This condition can lead to heart failure
What is the medical term meaning damage to the heart muscle caused by a thrombus blocking a coronary artery?
Coronary thrombosis can lead to myocardial infarction, or damage to the heart muscle.Myocardial infarct....Myo- means muscle.Cardial refers to the heart.Infarction is the death of tissue due to the lack of blood supply.HL
Is weightlifting a cause of heart failure?
No not at all, if you take steroids they can lead to heart failure.
What is the purpose of the coronary artery and what results is there is blockage in this vessel?
The coronary artery is the one which brings blood to the heart. When this is blocked, the heart is unable to pump due to lack of oxygen, and after a couple minutes the area of the heart that is receiving no blood dies. This is known as a myocardial infarction, or more commonly, a heart attack.
When you have cholesterol could your heart stop?
No, but it can lead to heart failure. In essence it doesn't literally "stop" your heart but It clogs many of the major arteries and causes hypertension (high blood pressure) which then puts a lot of pressure on your heart, which can lead to Heart Failure (cardiac arrest) or heart attack (acute myocardial infarction)
Myocardial infarctions result from?
Myocardial Infarctions, or heart attacks, can be caused by obesity. A fatty diet or lack of regular exercise can lead to a higher chance of a myocardial infarction.
Advanced atherosclerosis could likely lead to?
Myocardial infarction
What damage does a heart attack cause?
A heart attack or myocardial infarction (MI) can cause damage by brain damage, can lead to stokes, and also have the risk of having a seconf MI.
What effect does tachycardia have?
When the heart beats too rapidly, it pumps less efficiently and blood flow to the rest of the body, including the heart itself is reduced. The higher-than-normal heartbeat means there is an increase in demand for oxygen by the myocardium (heart muscle) - if this persists it can lead to myocardial infarction (heart attack), caused by the dying off of oxygen-starved myocardial cells.
What can Heart Failure lead to?
Heart Failure can lead to heart disease,heart attack and death.
What has the author Leo Schamroth written?
Leo Schamroth has written: 'The electrocardiology of coronary artery disease' -- subject(s): Coronary heart disease, Electrocardiography, Myocardial infarction 'The 12 Lead Electrocardiogram' -- subject(s): Electrocardiography
Can Cor pulmonale lead to heart failure?
This condition can lead to heart failure
What is the medical term meaning damage to the heart muscle caused by a thrombus blocking a coronary artery?
Coronary thrombosis can lead to myocardial infarction, or damage to the heart muscle.Myocardial infarct....Myo- means muscle.Cardial refers to the heart.Infarction is the death of tissue due to the lack of blood supply.HL
Explain what an unheathly lifestyle can do to your coronary arteries?
it will cause deposition of cholesterol in the artery, narrowing it's lumen and may lead to ischemia, and worst obstruction may lead to myocardial infarction.
What is primary site of Cholesterol synthesis in most animals?
Cholesterol is basically the adipose tissue or fat present in the body.Adipose tissue is stored as cholesterol in the body.It is used when required.Excess of cholesterol leads to obesity which can lead to myocardial infarction(heart attacks) due to the contraction of the blood vessels carrying blood to the heart.
How can EKG identify a myocardial infarction?
An EKG tells us about how electricity flows through the cells of the heart. Any infarction of cardiac tissue causes changes in the way the electricity travels. An EKG can show us these changes and help us to even identify where the infarction is occurring. A 12 lead EKG must be done to truly identify any infarction. The 12 lead shows us 12 different views of the electricity as it moves from one lead to another. By comparing the views we get against what would normally be expected and comparing each lead to the others we can look for changes in the EKG pattern (ST elevation or depression is the most obvious, but many other changes exist).
