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.

ACE inhibitors should be available at no cost to the 8 million Americans over age 65 who have diabetes

Nothing in life is free, the old saying goes. But maybe some things should be, according to a new University of Michigan Health System study.

18 Jul 2005

Startling discovery about the properties of human bone

The scientists describe their results - finding a sort of "glue" in human bone - in the cover story of the August issue of the international scientific journal, Nature Materials. The article was published on-line on July 17. It describes how healthy bone resists fracture and how unhealthy bone fractures at the molecular level.

18 Jul 2005

Dental X-rays effectively identify stroke risk

General dentists from across the United States exchanged vital information today showing that dental X-rays, known as panoramic radiographs, used for oral health examinations, are effective in detecting some cases of clinically significant carotid artery stenosis, or blockages in the carotid artery, which can potentially lead to stroke.

15 Jul 2005

Abnormal heart rate variability is partially responsible for depression's effects in heart patients

Scientists have known for years that depression increases the risk of dying in the months after a heart attack, but they haven't understood how depression raises that risk.

13 Jul 2005

Giving oxygen may do more harm than good

Doctors and paramedics who give their patients oxygen - the most commonly administered "drug" in the world - may be doing more harm than good, a Queen's University researcher contends.

11 Jul 2005

Low dose birth control pill raises heart attack risk, especially in some women

A new review suggests that low-dose birth control pills, which are generally considered to be safer than the pill of the past, still carries an increased risk for heart attack and stroke.

11 Jul 2005

Fat in the bloodstream linked to heart attacks

New research, by Dr. Sotirios Tsimikas of the University of California, San Diego, has produced the first convincing evidence that a type of fat in the bloodstream can trigger the earliest conditions that lead to clogged blood vessels, the highest cause of heart attacks.

7 Jul 2005

Vitamin E fails to deliver benefits for major cardiovascular events or cancer

In an article in the July 6 JAMA, I-Min Lee, M.B.B.S., Sc.D., of Brigham and Women's Hospital and Harvard Medical School, Boston, and colleagues analyzed data from the vitamin E component of the Women's Health Study, which tested whether vitamin E supplementation decreases the risk of cardiovascular disease and cancer among healthy women.

6 Jul 2005

Having normal blood pressure may prolong life

People in their 50s who have normal blood pressure could live up to five years longer than those with hypertension (high blood pressure), an international study has found.

6 Jul 2005

Aspirin can help prevent heart disease, but vitamin E no protection against cancer

It may have taken 12 years, but researchers now say that studies involving nearly 40,000 women in the U.S. has found that regular, low doses of aspirin do not prevent cancer, and vitamin E is pretty ineffective in warding off both heart disease and cancer.

6 Jul 2005

Antidepressants will cheer you up and stop a repeat heart attack

According to the National Institute of Mental Health, depression and heart disease have long been associated, and one can often lead to the other.

6 Jul 2005

Experimental treatment shown to reverse the loss of nerve fibres in Parkinson's Disease

Analysis of the brain of a patient suffering from Parkinson's Disease has shown that the experimental treatment he received caused regrowth of the nerve fibres that are lost in this disease. The findings are reported in the July issue of Nature Medicine.

6 Jul 2005

Call for greater use of angiograms in Canada

More tests need to be prescribed to save and prolong the lives of Canadians living with coronary artery disease, says a study released from the University of Alberta.

6 Jul 2005

Vitamin E supplements do not protect healthy women against heart attacks and stroke

Vitamin E supplements do not protect healthy women against heart attacks and stroke, according to new results from the Women's Health Study, a long-term clinical trial of the effect of vitamin E and aspirin on both the prevention of cardiovascular disease and of cancer.

5 Jul 2005

Withdrawn experimental drug found to reverse Parkinson's brain damage

Neuroscientists at Frenchay hospital in Bristol have discovered that an experimental drug for Parkinson's disease has been shown to trigger new nerve growth in the brain, the first time any treatment has been found to reverse the brain damage caused by the condition.

5 Jul 2005

Study indicates vitamin E reduces the risk of death from cardiovascular disease in women

The results of a new study involving nearly 40,000 healthy women shows vitamin E significantly reduced the risk of death from cardiovascular disease and also confirmed that vitamin E is safe, reporting that taking 600 IU of vitamin E supplements every other day did not increase total mortality in healthy women.

4 Jul 2005

Experimental treatment regrows nerve fibres in patient suffering Parkinson's disease

Analysis of the brain of a patient suffering from Parkinson’s Disease has shown that the experimental treatment he received caused regrowth of the nerve fibres that are lost in this disease. The findings are reported in the July issue of Nature Medicine.

30 Jun 2005

Medical experts say that yearly checkup not necessary - doctors and patients disagree

Though you and your doctor might think that yearly checkup is just a routine part of staying healthy, that practice isn't endorsed by a panel of experts.

29 Jun 2005

Major study says for diabetics with high blood pressure diuretics are the best option

A major new study has found that for people with type 2 diabetes and high blood pressure, cheaper diuretic medications may be the most cost-effective option in reducing hypertension.

29 Jun 2005

Diuretics work better than newer and more costly medicines for diabetics with high blood pressure

Diuretics (water pills) work better than newer and more costly medicines in the treatment of high blood pressure and prevention of some forms of heart disease in people with type 2 diabetes, according to results from the Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT).

28 Jun 2005

Heart Attack (Myocardial Infarction) News and Research

Further Reading

ACE inhibitors should be available at no cost to the 8 million Americans over age 65 who have diabetes

Startling discovery about the properties of human bone

Dental X-rays effectively identify stroke risk

Abnormal heart rate variability is partially responsible for depression's effects in heart patients

Giving oxygen may do more harm than good

Low dose birth control pill raises heart attack risk, especially in some women

Fat in the bloodstream linked to heart attacks

Vitamin E fails to deliver benefits for major cardiovascular events or cancer

Having normal blood pressure may prolong life

Aspirin can help prevent heart disease, but vitamin E no protection against cancer

Antidepressants will cheer you up and stop a repeat heart attack

Experimental treatment shown to reverse the loss of nerve fibres in Parkinson's Disease

Call for greater use of angiograms in Canada

Vitamin E supplements do not protect healthy women against heart attacks and stroke

Withdrawn experimental drug found to reverse Parkinson's brain damage

Study indicates vitamin E reduces the risk of death from cardiovascular disease in women

Experimental treatment regrows nerve fibres in patient suffering Parkinson's disease

Medical experts say that yearly checkup not necessary - doctors and patients disagree

Major study says for diabetics with high blood pressure diuretics are the best option

Diuretics work better than newer and more costly medicines for diabetics with high blood pressure

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