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.

Inflammation worsens danger due to atherosclerosis

Current research suggests that inflammation increases the risk of plaque rupture in atherosclerosis.

23 Jan 2009

Less severe first heart attacks linked to decline in coronary heart disease deaths

The severity of first heart attacks has dropped significantly in the United States - propelling a decline in coronary heart disease deaths, researchers reported in Circulation: Journal of the American Heart Association.

19 Jan 2009

Two out of three Canadians not aware of peripheral arterial disease

Two out of three Canadians are not aware of peripheral arterial disease (P.A.D.), a common vascular disease that affects as many as 800,000 Canadians, according to a study published in the Canadian Journal of Cardiology.

19 Jan 2009

New scan shows bleeding inside heart after heart attack

Images that for the first time show bleeding inside the heart after people have suffered a heart attack have been captured by scientists, in a new study published today in the journal Radiology.

19 Jan 2009

New clot-buster found

Exciting research into blood clotting by British Heart Foundation (BHF) researchers working at the University of Bristol will take us a step closer to better heart attack prevention and treatment.

19 Jan 2009

New diagnostic tool to measure blood flow could prevent needless stents

Doctors may be implanting too many artery-opening stents and could improve patient outcomes - and ultimately save lives - if they did more in-depth measurements of blood flow in the vessels to the heart.

15 Jan 2009

Half of people 50 years and younger with low 10-year risk of CVD have high lifetime risk

About half of people 50 years and younger who have a low 10-year or short-term cardiovascular disease (CVD) risk may have a high lifetime risk, researchers report in Circulation: Journal of the American Heart Association.

15 Jan 2009

New insight and intervention ideas to help reduce the number of heart attacks

A new national study has shown that nearly 75 percent of patients hospitalized for a heart attack had cholesterol levels that would indicate they were not at high risk for a cardiovascular event, according to current national cholesterol guidelines.

12 Jan 2009

Elderly more at risk of heart attack in cold weather

Cold weather may raise blood pressure in elderly. In new research French are suggesting that elderly people may be more at risk of suffering a stroke, heart attack or kidney failure in winter because cold weather may raise their blood pressure.

12 Jan 2009

Researchers trick bone marrow into releasing mesenchymal stem cells

Scientists have tricked bone marrow into releasing extra adult stem cells into the bloodstream, a technique that they hope could one day be used to repair heart damage or mend a broken bone, in a new study published today in the journal Cell Stem Cell.

9 Jan 2009

Neuropeptide Y gene variation may lead to early coronary artery disease

Researchers from Duke University Medical Center have identified a variation in a particular gene that increases susceptibility to early coronary artery disease.

5 Jan 2009

Benefits of fish oil supplements questioned

Canadian researchers have suggested that the evidence which supports the protective benefit of fish oil is inconclusive and more research is needed.

29 Dec 2008

Seniors warned about mixing OTC and prescription drugs

According to researchers in the United States about 2.2 million seniors put themselves at high risk for drug interactions - they say many non-prescription medication, which are bought over-the-counter (OTC) can produce a harmful drug interactions.

29 Dec 2008

Man dies from flesh-eating disease

A rare flesh-eating disease has claimed the life of a man in Britain. The 60 year old man Tony Williamson died days after a flesh-eating disease spread through his body from a small cut on the inside of his right arm.

28 Dec 2008

Patients with skin disease psoriasis need evaluation of coronary artery disease risk

According to new recommendations in the December 10 issue of The American Journal of Cardiology (AJC), published by Elsevier, new research is called for and patients with severe forms of the skin disease psoriasis should receive evaluation and possible treatment to reduce their risk of coronary artery disease (CAD).

18 Dec 2008

Most frequent cause of death among firefighters is not flames, it's their hearts

Forty-four percent of U.S. firefighters who died on duty in 2007 succumbed to a heart attack, based on data from the U.S. Fire Administration. That figure is twice the number of cardiovascular deaths among on-duty police officers.

18 Dec 2008

Trial tests adult stems cells to treat congestive heart failure

The University of California, San Diego Medical Center is the first hospital in California to enroll patients in a multi-center clinical trial, sponsored by Angioblast Systems Inc., to examine the safety and feasibility of administering adult stems cells to treat congestive heart failure.

18 Dec 2008

Abbott starts trial of 2.25 mm stent system

Abbott has announced the start of SPIRIT Small Vessel, a clinical trial evaluating a 2.25 mm size of the XIENCE V Everolimus Eluting Coronary Stent System.

17 Dec 2008

Hospitals using quality improvement program increase compliance to stroke treatment guidelines

Hospitals participating in a voluntary quality improvement program for stroke treatment increased adherence to national recommendations, researchers reported in Circulation: Journal of the American Heart Association.

15 Dec 2008

Psoriasis sufferers more likely to have higher levels of leptin

Patients with the skin disease psoriasis appear more likely to have higher levels of leptin (a hormone produced by fat cells that may contribute to obesity and other metabolic abnormalities) than persons without psoriasis, according to a report in the December issue of Archives of Dermatology.

15 Dec 2008