Atrial Fibrillation News and Research

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Atrial fibrillation (AF) is the most common arrhythmia. An arrhythmia is a problem with the speed or rhythm of the heartbeat. A disorder in the heart’s electrical system causes AF and other types of arrhythmia. AF occurs when rapid, disorganized electrical signals in the heart’s two upper chambers, called the atria, cause them to contract very fast and irregularly (this is called fibrillation). As a result, blood pools in the atria and isn’t pumped completely into the heart’s two lower chambers, called the ventricles. When this happens, the heart’s upper and lower chambers don’t work together as they should. Often, people who have AF may not even feel symptoms. However, even when not noticed, AF can lead to an increased risk of stroke. In many patients, particularly when the rhythm is extremely rapid, AF can cause chest pain, heart attack, or heart failure. AF may occur rarely or every now and then, or it may become a persistent or permanent heart rhythm lasting for years.

Prevalence and physiological predictors of sleep apnea in patients with heart failure

Obstructive sleep apnea (OSA) and central sleep apnea (CSA) are not markedly decreased in heart failure (HF) patients managed with beta-blockers and spironolactone, reports a study in the March issue of Journal of Cardiac Failure, published by Elsevier.

6 May 2009

Researchers identify atrial fibrillation as a stroke predictor in black patients

Predictors of atrial fibrillation (AF or afib) might offer physicians a better way to prevent stroke in blacks, according to a new study done by researchers at Wake Forest University School of Medicine.

29 Apr 2009

Merck & Co and Cardiome sign agreement for Vernakalant

Merck & Co., Inc. and Cardiome Pharma Corp. has announced a collaboration and license agreement for the development and commercialization of vernakalant, an investigational candidate for the treatment of atrial fibrillation.

9 Apr 2009

MRI-based method holds promise for predicting treatment outcomes in patients with atrial fibrillation

University of Utah researchers have found that delayed-enhancement magnetic resonance imaging (DE-MRI) holds promise for predicting treatment outcomes and measuring disease progression for patients with atrial fibrillation (AF), a little known heart rhythm disorder that affects more than 3.5 million Americans and causes more than 66,000 deaths a year.

8 Apr 2009

Exercise is safe, improves quality of life in patients With chronic heart failure

Behavior treatment works as well as drugs for children with ADHD and bypasses the risk of medication's side effects, a meta-analysis of 174 studies on ADHD treatment conducted at the University at Buffalo, has shown.

7 Apr 2009

Link between widely used osteoporosis drugs and heart problems probed

New research at Wake Forest University School of Medicine evaluated the link between a common class of drugs used to prevent bone fractures in osteoporosis patients and the development of irregular heartbeat.

6 Apr 2009

Big men more susceptible to atrial fibrillation

Older men who were big during their 20s face an increased risk of suffering from atrial fibrillation, or abnormal heart rhythm. New research from the Sahlgrenska Academy, University of Gothenburg, Sweden, reveals that height and weight are both factors.

4 Apr 2009

Targeted drug therapy prevents exercise-induced arrhythmias

A 12-year-old Dutch boy - bedridden for three years because of an inherited cardiac arrhythmia syndrome - can now join his friends on the soccer field thanks to a discovery made by Vanderbilt University Medical Center researchers.

30 Mar 2009

New Lantheus study finds significant survival benefit for critically ill patients undergoing contrast-enhanced echocardiography

Lantheus Medical Imaging, Inc has announced new data regarding the use of DEFINITY Vial For (Perflutren Lipid Microsphere) Injectable Suspension.

29 Mar 2009

Updated heart failure guidelines focus on key research findings, clinical advances

Updated guidelines on the diagnosis and management of heart failure will help physicians incorporate the latest research findings into the treatment of patients with this complex and disabling disease.

29 Mar 2009

Recently identified genetic heart disorder often deadly for young patients

A study that included young patients with a recently recognized rare type of cardiomyopathy (a disorder of the heart muscle) linked to a genetic mutation finds that progression of this disease may be rapid and often results in early death, according to a study in the March 25 issue of JAMA.

24 Mar 2009

Cardiac arrhythmias are often accompanied by sleep-disordered breathing

Breathing during sleep is often impaired in patients with atrial fibrillation.

22 Mar 2009

FDA Advisory Committee Recommends Approval of Multaq(R) (dronedarone)

Sanofi-aventis has announced that the Cardiovascular and Renal Drugs Advisory Committee voted 10 to 3 in favor of the approval of Multaq by the U.S. Food and Drug Administration (FDA) to treat patients with non-permanent atrial fibrillation (AF).

20 Mar 2009

FDA approves new version of St. Jude Medical internet-based remote care system for implanted medical devices

St. Jude Medical, Inc. has announced U.S. Food and Drug Administration (FDA) approval of the newest version of the Merlin.net Patient Care Network (PCN), a secure, Internet-based remote care system for patients with implanted medical devices.

16 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

Kidney disease increases risk of stroke in patients with atrial fibrillation

Chronic kidney disease increases the risk of stroke in patients with atrial fibrillation (AF), the most common type of heart arrhythmia, according to a new study by Kaiser Permanente researchers in the current online issue of Circulation.

4 Mar 2009

European Society of Cardiology reaffirms advice on cardiovascular risks associated with long-haul flights

Following a review by The Lancet of the medical issues associated with commercial air travel, the European Society of Cardiology has reaffirmed its advice about the risks of venous thromboembolism (VTE), whose risk, according to The Lancet, is increased "up to four-fold" by long-haul flight.

24 Feb 2009

SYNTAX defines borders between CABG and PCI with TAXUS drug-eluting stents

Coronary artery bypass grafting (CABG) should remain the "standard of care" for patients with complex coronary artery disease, concludes the SYNTAX study, published in the New England Journal of Medicine (online February 18, 2009, Print edition March 5).

23 Feb 2009

Experimental antiarrhythmic drug dronedarone reduces death rate in patients with atrial fibrillation

Results from the ATHENA trial, reported in the 12th February issue of the New England Journal of Medicine , suggest that the (as yet unlicensed) antiarrhythmic drug dronedarone can reduce the incidence of cardiovascular-related hospitalisation or death in patients with atrial fibrillation.

16 Feb 2009

FDA approves first ablation catheters for the treatment of atrial fibrillatio

The U.S. Food and Drug Administration has approved the first ablation catheters for the treatment of atrial fibrillation (uncoordinated contractions of the upper heart chambers), one of the most common types of arrhythmias-or abnormal heart rhythms--affecting more than two million Americans.

8 Feb 2009