Heart Attack (Myocardial Infarction) News and Research

RSS

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.

Study offers closer look at Takotsubo cardiomyopathy

"Broken heart syndrome" is still a mystery to many in the medical community, but new data from researchers at The Miriam Hospital may shed some light on the clinical characteristics and outcomes of this relatively rare, life-threatening condition.

29 Mar 2009

New evidence supports use of catheter-based therapy to remove blood clots in stroke patients

Nearly 90 percent of the 700,000 strokes that affect U.S. patients each year are caused by a blockage of blood vessels supplying the brain, known as ischemic stroke.

29 Mar 2009

Simple, noninvasive finger sensor test predicts major cardiac events

Results of a Mayo Clinic study show that a simple, noninvasive finger sensor test is "highly predictive" of a major cardiac event, such as a heart attack or stroke, for people who are considered at low or moderate risk, according to researchers.

26 Mar 2009

Environmental cardiology - the relationship between air pollution and heart disease

We are used to thinking of heart disease as a product of genetic factors or lifestyle choices, such as what we eat and how much we exercise.

23 Mar 2009

Levels of PLTP enzyme in blood should be a consideration for potential statin treatment

In a patient study of over 1,000 individuals with coronary artery disease (CAD), researchers have found that high levels of an enzyme called PLTP significantly increased the risk of heart attack in the subset of patients taking statins.

23 Mar 2009

Injected luminol glows blue revealing immune cells' misdeeds

Detectives on television shows often spray crime scenes with a compound called luminol to make blood glow.

22 Mar 2009

Nationwide alert on tainted weight loss products

The U.S. Food and Drug Administration is expanding, for the second time, its nationwide alert to consumers about tainted weight loss products containing

22 Mar 2009

Low dose medication best for treating high blood pressure

A newly published study found patients actually have more control of their high blood pressure (hypertension) when treated with less medication.

20 Mar 2009

Millions could benefit from statins to prevent heart attacks, strokes

Millions more patients could benefit from taking statins, drugs typically used to prevent heart attacks and strokes, than current prescribing guidelines suggest, Johns Hopkins doctors report in a new study.

19 Mar 2009

Drug pactimibe does not appear to reduce progression of atherosclerosis

Compared to placebo, the drug pactimibe did not effect certain measures of atherosclerosis for patients with familial hypercholesterolemia (high cholesterol levels), but these patients did have an increased incidence of cardiovascular events such as heart attack and stroke, according to a study in the March 18 issue of JAMA.

17 Mar 2009

1 in 4 Americans lacks timely access to optimal care during time-sensitive medical emergencies

Although most Americans live close to some type of emergency room, as many as one in four Americans are more than an hour away from the type of hospital that's most prepared to save their life during a time-sensitive medical emergency, according to a new University of Pennsylvania School of Medicine study published in the journal Annals of Emergency Medicine.

17 Mar 2009

Aspirin decreases first heart attacks in men and first strokes in women

Patients and clinicians should consider risk factors -- including age, gender, diabetes, blood pressure, cholesterol levels, smoking and risk of gastrointestinal bleeding -- before deciding whether to use aspirin to prevent heart attacks or strokes, according to new recommendations from the U.S. Preventive Services Task Force.

16 Mar 2009

Risks of using aspirin to prevent heart attack or stroke differ by gender and age

Patients and clinicians should consider risk factors-- including age, gender, diabetes, blood pressure, cholesterol levels, smoking and risk of gastrointestinal bleeding-- before deciding whether to use aspirin to prevent heart attacks or strokes, according to new recommendations from the U.S. Preventive Services Task Force.

16 Mar 2009

Big link between driving and heart attacks

People who have had a heart attack are likely to report having been in traffic shortly before their symptoms began, researchers reported at the American Heart Association's 49th Annual Conference on Cardiovascular Disease Epidemiology and Prevention.

15 Mar 2009

Statins reduce odds of an asthma-related hospitalization or ER visit

Results of a new study presented at the 2009 Annual Meeting of the American Academy of Asthma, Allergy and Immunology (AAAAI) show dramatic reductions in emergency room (ER) visits and hospitalizations for asthma patients taking cholesterol-lowering statins in addition to common asthma treatments.

15 Mar 2009

Schering-Plough's investigational oral thrombin receptor antagonist meets primary endpoint in a newly published study

Results of a Schering-Plough Corporation Phase II trial of SCH 530348, a novel oral thrombin receptor antagonist (TRA), were published today in The Lancet and demonstrated that the investigational antiplatelet compound met its primary endpoints of safety and tolerability.

12 Mar 2009

New project to develop blood tests for heart disease and stroke

The landmark Framingham Heart Study (FHS) is launching a major initiative to discover risk factors and markers that could lead to new blood tests to identify individuals at high risk of heart disease and stroke.

12 Mar 2009

Discovery of link between atrial fibrillation and increased risk of death in diabetic patients

Results from a large, international, randomised, controlled trial have shown that there is a strong link between diabetics who have an abnormal heart rhythm (atrial fibrillation) and an increased risk of other heart-related problems and death.

11 Mar 2009

Trends in heart attack explained

Explaining trends in heart attack: prevention has improved, mortality rates are down, hospitalisation remains the same

11 Mar 2009

Simple test helps predict heart attack risk

The use of common and readily available screening tests - like the ankle brachial index (ABI) - along with traditional risk scoring systems - such as the Framingham Risk Score - has the potential to prevent devastating heart attacks in thousands of individuals who are not originally thought to be at high risk (according to Framingham alone), say researchers at the Society of Interventional Radiology's 34th Annual Scientific Meeting.

11 Mar 2009