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.
CryoCath files patent infringement lawsuit

CryoCath files patent infringement lawsuit

New guidelines for cardiac testing and treatments

New guidelines for cardiac testing and treatments

Cryoablation for treating arrhythmias

Cryoablation for treating arrhythmias

Link between nicotine and atherosclerosis

Link between nicotine and atherosclerosis

Patent foramen ovale (PFO) and atrial septal defect (ASD) closure

Patent foramen ovale (PFO) and atrial septal defect (ASD) closure

Survey to evaluate arrhythmia rate in so-called high-risk MI patients

Survey to evaluate arrhythmia rate in so-called high-risk MI patients

Morgan Stanley Children's Hospital performs transcatheter pulmonary valve replacement

Morgan Stanley Children's Hospital performs transcatheter pulmonary valve replacement

Drug to treat cluster headaches may affect the heart

Drug to treat cluster headaches may affect the heart

Warfarin more effective than aspirin in prevention of stroke in people with atrial fibrillation

Warfarin more effective than aspirin in prevention of stroke in people with atrial fibrillation

Omega-3 fatty acids for a health heart

Omega-3 fatty acids for a health heart

Controversy over use of antipsychotic drugs for dementia

Controversy over use of antipsychotic drugs for dementia

Antipsychotic drugs for dementia

Antipsychotic drugs for dementia

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

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

Wearable cardiac telemedicine system

Wearable cardiac telemedicine system

Boston Scientific and CryoCor collaborate in atrial fibrillation

Boston Scientific and CryoCor collaborate in atrial fibrillation

Low potassium levels linked to increased mortality in heart failure patients

Low potassium levels linked to increased mortality in heart failure patients

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

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

New data supports safety of ranolazine but not its effectiveness

New data supports safety of ranolazine but not its effectiveness

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

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

Corticosteroids after cardiac surgery lower risk of atrial fibrillation

Corticosteroids after cardiac surgery lower risk of atrial fibrillation