Arrhythmia News and Research

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An arrhythmia is a problem with the speed or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. A heartbeat that is too fast is called tachycardia. A heartbeat that is too slow is called bradycardia. Most arrhythmias are harmless, but some can be serious or even life threatening. When the heart rate is too slow, too fast, or irregular, the heart may not be able to pump enough blood to the body. Lack of blood flow can damage the brain, heart, and other organs.

Controversy over use of antipsychotic drugs for dementia

Antipsychotic drugs are approved mainly for treating schizophrenia and bipolar disorder, but they are also used for many other purposes.

27 Jul 2007

Antipsychotic drugs for dementia

Antipsychotic drugs are approved mainly for treating schizophrenia and bipolar disorder, but they are also used for many other purposes.

27 Jul 2007

Implantable cardioverter-defibrillator effective in preventing sudden cardiac death in patients with hypertrophic cardiomyopathy

High-risk patients with hypertrophic cardiomyopathy appear to have reduced risk of sudden cardiac death with an implantable cardioverter-defibrillator that terminates dangerous heart rhythm disorders, according to a study in the July 25 issue of JAMA.

25 Jul 2007

Wearable cardiac telemedicine system

A Bluetooth heart monitor could text your local hospital if you are about to have a heart attack, according to research published today in Inderscience's International Journal of Electronic Healthcare.

18 Jul 2007

Boston Scientific and CryoCor collaborate in atrial fibrillation

CryoCor, Inc. and Boston Scientific Corporation have announced a strategic collaboration in the field of cryoablation, or the use of extreme cold, for the treatment of cardiac arrhythmias.

29 Jun 2007

Low potassium levels linked to increased mortality in heart failure patients

New research from University of Alabama at Birmingham indicates that patients with heart failure who have low to low-normal serum potassium levels are at increased risk of death.

8 Jun 2007

Silicone wires in newer defibrillators less reliable than older polyurethane-insulated leads

German researchers say the newer wire leads now used in implantable cardioverter defibrillators (ICDs) are not as reliable as first thought.

2 May 2007

New data supports safety of ranolazine but not its effectiveness

The anti-anginal medication ranolazine was shown to be safe in regard to certain outcomes but did not reduce the risk of major cardiovascular events such as death, heart attack or recurrent ischemia following acute coronary syndromes, according to a study in the April 25 issue of JAMA .

25 Apr 2007

Ranolazine safe but not effective in reducing major cardiac events in ACS patients

25 Apr 2007

Corticosteroids after cardiac surgery lower risk of atrial fibrillation

Patients who receive corticosteroids after cardiac surgery have a significantly lower risk of atrial fibrillation in the days following the surgery, according to a study in the April 11 issue of JAMA.

11 Apr 2007

Technology to make implantable devices safe for MRI

While magnetic resonance imaging (MRI) is already well established as a premiere non-invasive imaging technology, patients with implantable pacemakers, implantable cardiac devices, neurostimulators and other medical devices are often denied the evaluation their medical situation urgently requires.

5 Apr 2007

African Americans may be at higher risk of heart failure because of racial variations in heart muscle's pumping ability

Scientists have known for nearly a decade that African Americans have higher rates of hospitalization for heart failure than other major U.S. racial or ethnic groups, but until now they have had limited information other than socio-economic and demographic characteristics to explain why this is so.

2 Apr 2007

Irregular heartbeat linked to genetic mutation

Every day for 10 years, a seemingly heart-healthy 53-year-old woman experienced rapid and irregular heartbeats. She had no personal or family history of hypertension or hyperthyroidism. She did not suffer from myocardial or coronary artery disease, or any abnormalities of the heart as best doctors and medical science could determine.

25 Feb 2007

Statins slow the progression of aortic valve stenosis

The trial provides the first prospective clinical evidence that aortic valves have an active biology that can be targeted with medical therapy and contradicts research published in 2005 in the New England Journal of Medicine, which concluded statins did not halt the progression of aortic stenosis.

30 Jan 2007