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.

Researchers find key mechanism of cell damage in aging and disease

Researchers have taken a first snapshot of how a class of highly reactive molecules inflicts cellular damage as part of aging, heart disease, stroke, cancer, diabetes, kidney disease and Alzheimer's disease to name a few. According to a study published today in the journal Cell, researchers have discovered a tool that can monitor related damage and determine the degree to which antioxidant drugs effectively combat disease.

24 Jul 2008

Endurance exercise makes heart younger

Absence may make the heart grow fonder, but endurance exercise seems to make it younger. According to a study conducted at Washington University School of Medicine in St. Louis, older people who did endurance exercise training for about a year ended up with metabolically much younger hearts.

23 Jul 2008

Heart attack not a death sentence

Survivors of cardiac arrest who received intensive care can expect long-term quality of life at reasonable expense to the health care system.

17 Jul 2008

New ultrasound imaging system spots early evidence of peripheral arterial disease

Researchers at Oregon Health & Science University have devised an ultrasound imaging technique that picks up subtle early evidence of peripheral arterial disease (PAD) that current conventional tests miss.

17 Jul 2008

New 'Cardiomobile' monitoring system

Dr Charles Worringham of Queensland University of Technology's Institute of Health and Biomedical Innovation said the unique 'Cardiomobile' monitoring system, developed by Gold Coast company Alive Technologies, was being further developed and trialled together with QUT under an ARC Linkage Grant.

17 Jul 2008

Optimism is good for heart health, at least among men, a new study shows

University of Rochester Medical Center researcher Robert Gramling, M.D., D.Sc., found that men who believed they were at lower-than-average risk for cardiovascular disease actually experienced a three times lower incidence of death from heart attacks and strokes.

14 Jul 2008

Novel approach shows potential to become an emergency treatment for heart attack patients

Researchers at The Children's Hospital of Philadelphia have manipulated cell activity that occurs during the interruption of blood flow to strongly protect heart tissue in animal studies. The finding has the potential to become an emergency treatment for heart attack patients, particularly since already existing drugs might be pressed into service to produce the protective effects.

10 Jul 2008

Water overdose proves to be a killer

A British man who drank 17 pints of cold water in eight hours, five times the recommended daily amount, in order to relieve a painful gum condition has died as a result.

9 Jul 2008

Farm-raised tilapia fish contains potentially dangerous fatty acid combination

"Farm-raised tilapia, one of the most highly consumed fish in America, has very low levels of beneficial omega-3 fatty acids and, perhaps worse, very high levels of omega-6 fatty acids, according to new research from Wake Forest University School of Medicine.

8 Jul 2008

Pregnancy increases risk of acute myocardial infarction

Although acute myocardial infarction (AMI) is rare in women of child-bearing age, pregnancy can increase a woman's risk of heart attack 3- to 4-fold, according to a study published in the July 15, 2008, issue of the Journal of the American College of Cardiology.

8 Jul 2008

Disruption of blood sugar levels after heart surgery is common

A study reveals today that inadequate blood sugar control in patients having heart surgery is associated with a four fold increase in post-surgery death and major complications - and that the blood sugar disturbances occur in patients with and without diabetes.

7 Jul 2008

Coronary arterial calcium scans help detect overall death risk in the elderly

Measuring calcium deposits in the heart's arteries can help predict overall death risk in American adults, even when they are elderly, according to a new study published in the July issue of Journal of the American College of Cardiology.

2 Jul 2008

Significant gender differences in heart disease

Women may respond less favorably than men to cardiovascular disease (CV) drug-treatments for enlarged heart, according to NewYork-Presbyterian Hospital/Weill Cornell Medical Center physician-scientists

1 Jul 2008

New clinical trial for patients with asbestos-associated lung cancer

The Mesothelioma Center within the Herbert Irving Comprehensive Cancer Center at NewYork-Presbyterian Hospital and Columbia University Medical Center is now recruiting patients for a clinical research study of a new targeted radiation and chemotherapy protocol for pleural mesothelioma, a cancer of the lung's lining that is almost always caused by previous exposure to asbestos.

26 Jun 2008

Queensland ambulance officers save lives with clot busting drug treatment

In February this year paramedics in Queensland became the first in Australia to provide potentially lifesaving drugs to heart attack victims as part of a research project funded by the Queensland Ambulance Service (QAS).

25 Jun 2008

Children, adolescents living with HIV have higher rates of risk factors for cardiovascular issues

Children and adolescents living with HIV have higher rates of risk factors for cardiovascular issues than HIV-negative children and adolescents, according to a study published in the June issue of the Journal of Pediatrics, the Miami Herald reports. In addition, many antiretroviral drugs can increase cardiovascular risk factors, the Herald reports.

24 Jun 2008

Drug-releasing coronary artery stent use linked with decrease in procedures to unblock coronary arteries

The widespread adoption of the use of drug-releasing coronary artery stents into routine practice is associated with a decrease in the need for repeat procedures to unblock coronary arteries and also do not appear to increase the risk of death, compared to bare-metal stents, according to a study in the June 25 issue of JAMA, the Journal of the American Medical Association

24 Jun 2008

New more accurate cardiovascular score developed to improve heart attack and stroke detection

A new and more accurate method of assessing people at risk from cardiovascular disease (CVD) is set to improve national diagnosis rates and identify those at risk among black and minority ethnic groups.

24 Jun 2008

Nearly one in five patients experiences chest pain one year after having a heart attack

One of the main goals of in-hospital treatment and outpatient care after heart attack is to relieve angina (or episodic chest pain), according to background information in the article. The prevalence and treatment of chest pain one year after heart attack are largely unknown.

24 Jun 2008

New details on how low blood flow promotes vascular disease

Researchers have found the first direct proof that a key protein drives the clogging of arteries in two ways, and that lowering levels of it opens them up, according to study results published in the June edition of the journal Circulation.

24 Jun 2008