Cardiology

What is atrial fibrillation?

Nearly 3 million Americans are living with a heart condition called atrial fibrillation, according to the American Heart Association. And the Centers for Disease Control and Prevention says that number could be as high as ...

Cardiology

Researchers map rotating spiral waves in live human hearts

Electrical signals tell the heart to contract, but when the signals form spiral waves, they can lead to dangerous cardiac events like tachycardia and fibrillation. Researchers at the Georgia Institute of Technology and clinicians ...

Cardiology

Effectiveness of subcutaneous defibrillators

Electric shocks delivered by subcutaneous defibrillators are equally effective compared to shocks delivered by conventional transvenous defibrillators, according to a study published in the journal Circulation.

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