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.

Time-to-treatment is important to success of angioplasty treatment

An in-depth look at hospitals that reduced treatment delays highlights steps other hospitals could take to provide rapid angioplasty treatment to heart attack patients, according to a new study in the Oct. 4, 2005, issue of the Journal of the American College of Cardiology.

28 Sep 2005

Quality-improvement improves mortality in hospital

Heart attack death rates dropped significantly at hospitals that participated in a quality-improvement process that increased the use of evidence-based therapies, according to a new study in the Oct. 4, 2005, issue of the Journal of the American College of Cardiology.

28 Sep 2005

Bleak outlook for overweight Australians

International research into the relationship between obesity and heart failure has uncovered a bleak outlook for already overweight Australians. The research shows that obesity is set to be one of the biggest risks for heart disease over the next decade.

28 Sep 2005

Survival of heart attack patients placed on beta-blocker therapy corresponds to specific variations in their genes

Survival of heart attack and unstable angina patients placed on beta-blocker therapy corresponds to specific variations in their genes, according to a study by researchers at Washington University School of Medicine in St. Louis and the Mid America Heart Institute in Kansas City.

27 Sep 2005

Patients with panic disorder have nearly double the risk for coronary heart disease,

...and those also diagnosed with depression are at almost three times the risk, according to new research.

27 Sep 2005

Heavy smokers can reduce their risk of lung cancer if they decrease smoking by 50 percent

Despite efforts to prevent people from beginning smoking and to encourage smoking cessation, the overall prevalence of cigarette smoking is still high and many smokers are unable or unwilling to completely quit.

27 Sep 2005

Gene variants and beta-blockers associated with increased risk of death

Patients with certain gene variants who were prescribed beta-blocker drugs after acute coronary syndrome (ACS) had an increased risk of death over the next three years, according to a study in the September 28 issue of Journal of the American Medical Association (JAMA).

27 Sep 2005

Innovative new treatment for moderate to severe heart failure

Cardiologists at Beth Israel Medical Center are currently enrolling patients in an investigational study that is looking at the safety and efficacy of an innovative new treatment for moderate to severe heart failure, in which a unique pacemaker-like device helps strengthen the heart's pumping power

26 Sep 2005

Heart attack patients run an increased risk of developing post-traumatic stress disorder

This may lead to a vicious cycle, with the PTSD associated with heart disease harming the patient's future cardiac heath, according to the study in the current issue of Psychosomatic Medicine.

26 Sep 2005

Researchers map genetic location that explains why certain blood pressure-lowering drugs aren't effective for some people

"The findings bring us a step closer to developing targeted therapies for patients with high blood pressure who might otherwise be started on medications that won't help," said lead author Sandosh Padmanabhan, Ph.D.

26 Sep 2005

Link between ambient air pollution and acute myocardial infarction, or heart attack

An article published in the Journal of Thrombosis and Haemostasis looks specifically at airborne particulate matter resulting mainly from the combustion of fuel, including coal and also from forest fires.

26 Sep 2005

Heart disease patients face greater risk of PTSD

Heart attack patients, and most likely those with other forms of heart disease, run an increased risk of developing post-traumatic stress disorder, says a new research review done in Denmark and the Netherlands.

22 Sep 2005

HDL cholesterol helps prevent blocked arteries and heart attack

Cardiology experts at Johns Hopkins have issued interim guidelines for physicians on how best to treat low levels of HDL cholesterol, the so-called good cholesterol, which helps keep arteries clear from the buildup of LDL cholesterol, the so-called bad cholesterol.

22 Sep 2005

Significant death risk linked to airborne particles

Experts may be significantly underestimating air pollution's role in causing early death, according to a team of American and Canadian researchers, who studied two decades' worth of data on residents of the Los Angeles metro area.

20 Sep 2005

Important new lessons learned from aspirin

No other medicine is as common, inexpensive, and yet powerful in so many ways as aspirin; yet despite a century of experience with the drug, researchers are still learning important new lessons, while raising new questions, according to seven special articles in the Sept. 20, 2005, issue of the Journal of the American College of Cardiology.

20 Sep 2005

Low-dose aspirin might prevent the cardiovascular damage known to arise from use of the painkiller rofecoxib (Vioxx)

Their findings that a chemical imbalance might underlie such damage could also lead to the development of anti-inflammatory drugs without the adverse side effects, the researchers said.

20 Sep 2005

Women who suffer heart attacks wait longer to be assessed

Women who suffer heart attacks wait longer to be assessed, admitted and receive treatment than men with the same condition, according to a paper in the latest Journal of Advanced Nursing.

12 Sep 2005

Large scale study to see if angioplasty can be safely performed in small hospitals

Cardiologists at Johns Hopkins have launched a nationwide study of more than 16,000 patients to see if a potentially life-saving procedure called angioplasty can be safely performed in smaller, community hospitals, easing access to the therapy for patients. Researchers expect to enroll the first study patients in early fall 2005.

12 Sep 2005

More heart victims die when clot-buster drug is used before angioplasty

Currently it is fairly common practice to give heart attack patients a clot-busting drug a few hours before planned angioplasty.

7 Sep 2005

New study dispels role of B vitamins in preventing heart attacks

According to the findings of a new study, by giving B vitamins to heart attack survivors their risk of having another attack is not reduced, and it may in fact do more harm than good.

6 Sep 2005

Heart Attack (Myocardial Infarction) News and Research

Further Reading

Time-to-treatment is important to success of angioplasty treatment

Quality-improvement improves mortality in hospital

Bleak outlook for overweight Australians

Survival of heart attack patients placed on beta-blocker therapy corresponds to specific variations in their genes

Patients with panic disorder have nearly double the risk for coronary heart disease,

Heavy smokers can reduce their risk of lung cancer if they decrease smoking by 50 percent

Gene variants and beta-blockers associated with increased risk of death

Innovative new treatment for moderate to severe heart failure

Heart attack patients run an increased risk of developing post-traumatic stress disorder

Researchers map genetic location that explains why certain blood pressure-lowering drugs aren't effective for some people

Link between ambient air pollution and acute myocardial infarction, or heart attack

Heart disease patients face greater risk of PTSD

HDL cholesterol helps prevent blocked arteries and heart attack

Significant death risk linked to airborne particles

Important new lessons learned from aspirin

Low-dose aspirin might prevent the cardiovascular damage known to arise from use of the painkiller rofecoxib (Vioxx)

Women who suffer heart attacks wait longer to be assessed

Large scale study to see if angioplasty can be safely performed in small hospitals

More heart victims die when clot-buster drug is used before angioplasty

New study dispels role of B vitamins in preventing heart attacks

Bringing real-time analytics to downstream bioprocess monitoring

Designing fluidic architecture for scalable diagnostic platforms

Evaluating new approaches for rare disease genomics

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