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.

How and where fat is stored predicts disease risk better than weight

Young adults who abuse amphetamines may be at greater risk of suffering a heart attack, UT Southwestern Medical Center researchers have found.

3 Jun 2008

NGAL protein levels in simple urine test speed diagnosis of failing kidneys

Walk into any emergency department complaining of chest pain and you are likely to have blood drawn. Within hours it should be clear whether you've had a heart attack, based on enzyme levels in your blood and whether those levels reveal the tissue damage normally associated with a heart attack or other major cardiac event.

2 Jun 2008

Survivors of childhood Hodgkin's lymphoma at higher risk of future health problems

Adults who survived childhood Hodgkin's Lymphoma should be especially vigilant about cancer and cardiovascular screenings, according to researchers from Wake Forest University Baptist Medical Center and colleagues.

2 Jun 2008

Survivors of childhood Hodgkin's lymphoma at higher risk of future health problems

1 Jun 2008

Appeals courts overturn two verdicts, judgment on award payment in Vioxx lawsuits

State appeals courts in New Jersey and Texas on Thursday reversed two jury verdicts and a judgment on payment of legal fees in lawsuits related to the COX-2 inhibitor Vioxx that would have required Merck to pay about $37 million, Bloomberg/Washington Post reports (Van Voris/Voreacos, Bloomberg/Washington Post, 5/30).

30 May 2008

Increased screening may better predict those at higher risk for heart disease

Adding noninvasive imaging to current risk-assessment protocols may identify more people who are at risk of developing heart disease, UT Southwestern Medical Center researchers have found.

27 May 2008

Blood cholesterol levels predict risk of heart disease due to hormone therapy

A new analysis of a subgroup of participants in the Women's Health Initiative (WHI) hormone therapy clinical trials suggests that healthy, postmenopausal women whose blood cholesterol levels are normal or lower are not at increased, short-term risk for heart attack when taking hormone therapy.

26 May 2008

Increased screening may better predict those at higher risk for heart disease

Adding noninvasive imaging to current risk-assessment protocols may identify more people who are at risk of developing heart disease, UT Southwestern Medical Center researchers have found.

26 May 2008

Flavanols in cocoa improve artery function, help relieve stress on heart

For people with diabetes, sipping a mug of steaming, flavorful cocoa may seem a guilty pleasure. But new research suggests that indulging a craving for cocoa can actually help blood vessels to function better and might soon be considered part of a healthy diet for the prevention of cardiovascular disease.

26 May 2008

Bivalirudin improves net clinical outcomes and increases survival in heart attack patients

A study led by Gregg W. Stone, M.D., professor of medicine at Columbia University Medical Center/NewYork-Presbyterian and chairman of the Cardiovascular Research Foundation, has shown that heart attack patients who were administered the direct thrombin inhibitor bivalirudin during primary angioplasty had a reduced rate of adverse clinical events, a lower rate of major bleeding, and a lower mortality rate than those who were treated with a regimen of heparin and glycoprotein IIb/IIIa inhibitors (GPI).

26 May 2008

Simple blood test could indicate higher risk for coronary events in women after post-menopausal hormone therapies

A research study has found that a simple blood test may indicate whether post-menopausal hormone therapies present an elevated risk of a heart attack.

22 May 2008

Merck agrees to pay $58 million to aettle multistate lawsuit that claimed advertisements for Vioxx played down health risks

Merck on Tuesday agreed to a $58 million settlement with 29 states and the District of Columbia to end investigations over allegations that it downplayed cardiovascular risks caused by the COX-2 inhibitor Vioxx in direct-to-consumer advertisements dating back to 1999, the AP/Philadelphia Inquirer reports (Raffaele, AP/Philadelphia Inquirer, 5/21).

21 May 2008

New blood test reveals risk for metabolic syndrome

University of Minnesota researchers have discovered that people with high oxidation levels of the low-density lipoprotein (LDL) particle that carries cholesterol throughout the blood are much more likely to develop metabolic syndrome - which can lead to a considerably increased risk of developing heart disease.

20 May 2008

Ideal treatment for potentially fatal heart condition changes with age

Doctors now make more informed decisions on how to treat an electrical disorder of the heart - be it with drugs, an implanted device or nothing - thanks to a series of decades-long, Rochester-based studies.

20 May 2008

Government funds Rochester heart rhythm disorder research into third decade

A team of cardiologists at the University of Rochester Medical Center has won a four-year, $2.3 million grant from the National Institutes of Health (NIH) to continue its study of a cardiac condition that places teens at risk for sudden death. With the latest award, the team will have received continuous NIH funding for 23 years - one of the longest, continuous, investigator-initiated research projects at the University of Rochester.

20 May 2008

Confused about HRT? read on!

As if women are not confused enough about the pros and cons of hormone replacement therapy (HRT), an international group of experts now say safety issues regarding HRT have been "over hyped".

20 May 2008

Thiazide-type diuretic shown to be best first-choice drug for hypertensive patients

A study based at The University of Texas Health Science Center at Houston provides added justification that a thiazide-type diuretic is the best first-choice drug for hypertensive patients. The findings, published in the American Heart Association's Circulation, Volume 117, Issue 20, evaluate the results of a previous trial coordinated by researchers at The University of Texas School of Public Health, along with other recent studies.

19 May 2008

Erection problems may signal serious heart disease

Erectile dysfunction is always a matter of the heart, but new research shows that more than romance is at stake. Two new studies of men with type 2 diabetes found that erectile dysfunction (ED) was a powerful early warning sign for serious heart disease, including heart attack and death.

19 May 2008

Scientists unravel how smoking causes cancer

Scientists have for the first time pinpointed a protein that explains how smoking can directly lead to genetic changes that cause cancer - research published in the British Journal of Cancer reveals.

15 May 2008

Beta blockers after surgery more risky than beneficial

The results of new research has shown that patients given high doses of beta blocker drugs following non-cardiac surgery were more likely to have a stroke or die. However they were less likely to suffer a heart attack.

13 May 2008