Damaged Hearts

Stem Cell Therapy for Heart Disease
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When a coronary artery narrows and constricts blood flow, other nearby blood vessels that serve the heart sometimes expand to compensate, which may explain why there are no warning signs. Such a network of expanded nearby blood vessels is called collateral circulation, and it helps protect some people from heart attacks by delivering needed blood to the heart. Collateral circulation can also develop after a heart attack to help the heart muscle recover.

When a heart attack occurs, the heart muscle that has lost blood supply begins to suffer injury. The amount of damage to the heart muscle depends on the size of the area supplied by the blocked artery and the time between injury and treatment. Heart muscle damaged by a heart attack heals by forming scar tissue. It usually takes several weeks for your heart muscle to heal.

The length of time depends on the extent of your injury and your own rate of healing. The heart is a very tough organ. Even though a part of it may have been severely injured, the rest of the heart keeps working. But, because of the damage, your heart may be weakened, and unable to pump as much blood as usual. Learn more about heart damage detection. The heart muscle begins to heal soon after a heart attack. It usually takes about eight weeks to heal. Scar tissue may form in the damaged area, and that scar tissue does not contract or pump as well as healthy muscle tissue.

As a consequence, the extent of damage to the heart muscle can impact how well the heart pumps blood throughout the body. How much pumping function is lost depends on the size and location of the scar tissue. Taking these steps can help you lead a full, productive life. Learn more about recovering from heart attack.

One very common type of chest pain is called angina. Acute coronary syndrome ACS : An umbrella term for situations where the blood supplied to the heart muscle is suddenly blocked. Learn more about ACS.

Damaged heart? Grow around it!

STEMI: A common name for ST-elevation myocardial infarction, a type of heart attack caused by a complete blockage in a coronary artery. Myocardial infarction MI : The damaging or death of an area of the heart muscle myocardium resulting from a blocked blood supply to that area. Coronary thrombosis: Formation of a clot in one of the arteries that supply blood to the heart muscle. Also called coronary occlusion.

Boston Children’s Researchers Find Possible Way To Repair Damaged Hearts

Eventually, the kidneys respond to the weaker blood-pumping action by retaining more water and salt, and fluid can build up in the arms, legs, ankles, feet, and even around the lungs. Many conditions can lead to congestive heart failure. Among the most common are heart attacks, high blood pressure, valve disease, and genetic conditions called cardiomyopathies. Lifestyle changes, such as lowering salt and fat intake, exercising regularly, reducing alcohol consumption, and quitting smoking are recommended to reduce the chances of heart attack and in the early stages of congestive heart failure.

The goals are to slow down any progression of the disease, lessen symptoms, and improve quality of life. Angioplasty involves inserting and inflating a tiny balloon into the affected artery. Other post-heart attack treatments include the regular use of blood thinners for example, low-dose aspirin to prevent new clots from forming and other medications to help control blood pressure and blood cholesterol levels. For moderate to severe congestive heart failure, surgery may be necessary to repair or replace heart valves or to bypass coronary arteries with grafts. In severe cases, patients may have pacemakers or defibrillators implanted to control heart rhythms.

For more information on heart failure and other cardiovascular diseases visit the American Heart Association. Learn more here. Researchers are using stem cells in two important ways to improve cardiac health.

Second, stem cells offer ways to replace damaged heart tissue. Using cellular therapy, researchers hope to repair or replace heart tissue damaged by congestive heart failure and heart attacks. Unlike the treatments listed above, cellular therapy could provide a durable treatment for heart deficiencies, rather than symptom-focused treatment. Your heart is constructed of several types of cells.

For mending damaged heart tissue, researchers generally focus on three specific heart cell types:. Gladstone Institutes. Close up of a mouse heart stained to reveal the important structural protein that helps heart muscle cells to contract red. The cell nuclei are labeled in magenta. Researchers are experimenting with a variety of stem cell therapies to transplant new cells, use tissue engineering to improve the survival or function of transplanted cells, and stimulate existing cells to generate new cardiomyocytes.

Strikingly, these stem cell-derived cardiomyocytes will beat in unison in a culture dish, the same way they do in a living heart muscle. Ischemia results when the heart muscle is starved for oxygen and nutrients. The process of atherosclerosis has no symptoms.

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When a coronary artery narrows and constricts blood flow, other nearby blood vessels that serve the heart sometimes expand to compensate, which may explain why there are no warning signs. Such a network of expanded nearby blood vessels is called collateral circulation, and it helps protect some people from heart attacks by delivering needed blood to the heart. Collateral circulation can also develop after a heart attack to help the heart muscle recover.

When a heart attack occurs, the heart muscle that has lost blood supply begins to suffer injury. The amount of damage to the heart muscle depends on the size of the area supplied by the blocked artery and the time between injury and treatment. Heart muscle damaged by a heart attack heals by forming scar tissue. It usually takes several weeks for your heart muscle to heal. The length of time depends on the extent of your injury and your own rate of healing. The heart is a very tough organ. Even though a part of it may have been severely injured, the rest of the heart keeps working.

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Her Defiant Heart (Damaged Hearts, #1), His Wasted Heart (Damaged Hearts, #2 ), Damaged Hearts (Damaged Hearts, #3), and Damaged Hearts (Damaged. Damaged Hearts book. Read 50 reviews from the world's largest community for readers. After all we've been through, things are finally good between us. So.

But, because of the damage, your heart may be weakened, and unable to pump as much blood as usual. Learn more about heart damage detection. The heart muscle begins to heal soon after a heart attack. It usually takes about eight weeks to heal. Scar tissue may form in the damaged area, and that scar tissue does not contract or pump as well as healthy muscle tissue. As a consequence, the extent of damage to the heart muscle can impact how well the heart pumps blood throughout the body.

How much pumping function is lost depends on the size and location of the scar tissue. Taking these steps can help you lead a full, productive life. Learn more about recovering from heart attack. One very common type of chest pain is called angina. Acute coronary syndrome ACS : An umbrella term for situations where the blood supplied to the heart muscle is suddenly blocked.

Learn more about ACS. STEMI: A common name for ST-elevation myocardial infarction, a type of heart attack caused by a complete blockage in a coronary artery. Myocardial infarction MI : The damaging or death of an area of the heart muscle myocardium resulting from a blocked blood supply to that area.

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