Heart Attack (Myocardial Infarction) News and Research

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A Heart Attack (Myocardial Infarction) occurs when blood flow to a section of heart muscle becomes blocked. If the flow of blood isn’t restored quickly, the section of heart muscle becomes damaged from lack of oxygen and begins to die.

Heart attack is a leading killer of both men and women in the United States. But fortunately, today there are excellent treatments for heart attack that can save lives and prevent disabilities. Treatment is most effective when started within 1 hour of the beginning of symptoms. Heart attacks occur most often as a result of a condition called coronary artery disease (CAD). In CAD, a fatty material called plaque (plak) builds up over many years on the inside walls of the coronary arteries (the arteries that supply blood and oxygen to your heart). Eventually, an area of plaque can rupture, causing a blood clot to form on the surface of the plaque. If the clot becomes large enough, it can mostly or completely block the flow of oxygen-rich blood to the part of the heart muscle fed by the artery.

Heart attack scars mended using stem cells

Researchers from United States have successfully healed the scars caused by a heart attack using stem cells gathered from the patient's own heart. The amount of scar tissue was halved in the small safety trial reported in the Lancet medical journal. The authors said there was also an “unprecedented” increase in new heart muscle.

15 Feb 2012

Top-line results from Merck's vorapaxar clinical study on thrombosis

Merck, known outside the United States and Canada as MSD, today announced the top-line results of the TRA-2P (Thrombin Receptor Antagonist in Secondary Prevention of atherothrombotic ischemic events) study of vorapaxar.

7 Feb 2012

Olive and sunflower oil fried food not bad for heart: Study

A study published this week in the British Medical Journal analyzed data on 40,757 Spanish adults age 29 to 69 who were followed for an average 11 years. Free of coronary heart disease at the beginning of the study, they were asked what they ate and what cooking methods they used, then were tracked to see who developed coronary heart disease and who died.

26 Jan 2012

Sex declared safe for heart patients

A doctors’ group on Thursday suggested that sex may be safe for most heart patients. The American Heart Association added that having sex only slightly raises the chance for a heart attack. And that’s true for people with and without heart disease. Despite the higher risk for a heart patient to have a second attack, there’s no evidence that they have more sex-related heart attacks than people without cardiac disease. The updated advice was released online Thursday in the heart association journal, Circulation.

22 Jan 2012

Increasing health problems from caffeinated energy drinks

A study has shown that there is a sharp rise in the number of people who report heart problems, tremors and chest pains after drinking caffeinated energy drinks. The incidences are particularly common among teenagers. Close to 300 calls were made to NSW's poisons centre regarding adverse reactions to energy drinks between January 2004 and the end of 2010, with more than a third of people attending hospital.

18 Jan 2012

Regular aspirin may not be good for all: Study

Researchers suggest that healthy individuals who take aspirin to prevent a heart attack or stroke could be doing more harm than good. An analysis of more than 100,000 patients, published in Archives of Internal Medicine, concluded the risk of internal bleeding was too high. The UK-led study said only people with a history of heart problems or stroke should take the tablets. Experts however added that any decision should be made with a doctor.

11 Jan 2012

Statins may raise type 2 diabetes risk

A new study suggests statin medications used to lower cholesterol may raise the risk of diabetes to a slight extent. Study authors advise patients not to stop taking their medications without talking to a doctor, because statins' proven power to prevent heart attacks and strokes outweighs any potential increase in type 2 diabetes risk.

10 Jan 2012

Grief and heart attacks linked: Study

Researchers have found that grief might actually break ones heart. A new study shows that people grieving the death of a close loved one could have a heart attack risk that is 20 times higher than normal.

10 Jan 2012

Re-admission rates high among U.S. heart attack patients: Study

According to new research from U.S health experts, Americans who have a severe form of a heart attack are far more likely to be readmitted to the hospital than people from 16 other countries with the same kind of heart attack.

4 Jan 2012

Weight loss surgery cuts risk of heart attacks, strokes: Study

A new study shows that weight loss surgery clearly cuts the risk of heart attacks, strokes and death from cardiovascular disease. But the research also raises questions regarding which patients benefit the most from surgery.

4 Jan 2012

Attention deficit drugs safe for adult hearts as well

A new study looked at nearly 150,000 adults taking drugs for attention deficit hyperactivity disorder (ADHD) and found that the medications do not increase the risk for heart attack, stroke, or sudden death from heart-related causes.

15 Dec 2011

Stem cells for the damaged heart

Stem cell research got its latest boost. For the first time, stem cells were injected into the hearts of humans who had suffered serious heart damage, and patients improved dramatically. The scientists found that the stem cells grew into new heart cells to replace the damaged tissue.

5 Dec 2011

New discovery of adult stem cells gives fresh possibilities for heart regeneration

Sydney researchers have discovered a new population of adult stem cells in the heart, which could augment the development of new regeneration and repair therapies for people who have suffered heart attack or heart failure, the leading cause of death in Australia.

1 Dec 2011

Pfizer backs its highest grosser Lipitor

Pfizer’s Lipitor, a blood cholesterol lowering drug, is a popular one the among general population. However now that a generic competition for the drug has arrived in the market the company has devised discounts and incentives for patients, insurers and companies that process prescriptions that will, at least for the next six months, make the brand name drug about as cheap as or cheaper than the generics.

30 Nov 2011

Women much more likely to suffer from “broken heart syndrome”

Researchers have found that a woman’s heart is broken more easily than a man’s. In fact females are seven to nine times more likely to suffer “broken heart syndrome,” when sudden or prolonged stress like an emotional breakup or death causes overwhelming heart failure or heart attack-like symptoms, the first nationwide study of this finds. Usually patients recover with no lasting damage add researchers.

17 Nov 2011

Xarelto (rivaroxaban) shows success as blood thinner in acute coronary syndrome

A new anti-blood clotting drug – Xarelto (rivaroxaban) has shown clinical success. It may help people with “acute coronary syndrome” lower their risk of death, subsequent heart attack or stroke, a new study finds. Acute coronary syndrome is term that includes people with angina or prior history of heart attack.

15 Nov 2011

Merck’s cholesterol lowering drug gets FDA panel’s vote

A health advisors’ panel have unanimously backed the use of Merck & Co's cholesterol-lowering drug Vytorin for preventing stroke and other heart problems in patients with chronic kidney disease, but only in those patients not yet on dialysis. The panel voted 16-0 during a meeting today in Silver Spring, Maryland.

3 Nov 2011

ADHD drugs don’t raise risk for heart attacks or stroke: Study

Drugs known as stimulants, that are used to treat attention deficit hyperactivity disorder do not increase the risk of heart attacks, strokes or sudden death, U.S. researchers said on Monday. This study finding should reassure millions of parents whose children take the drugs.

2 Nov 2011

Super broccoli on the shelves to protect from heart disease

British scientists unveiled a new breed of broccoli that experts say packs heavy on nutritional values. The new broccoli was specially grown to contain two to three times the normal amount of glucoraphanin, a nutrient believed to help ward off heart disease. Glucoraphanin breaks fat down in the body, preventing it from clogging the arteries.

27 Oct 2011

Americans on a sodium high: CDC report

A new study by federal government researchers shows that most Americans consume too much sodium, and new strategies and stronger efforts are needed to reduce the amount of dietary salt. Experts add that high levels of sodium consumption are associated with increased risk of high blood pressure, which can lead to heart disease and stroke.

20 Oct 2011