Dr. Richard Page answers the question: 'What Causes Defibrillator To Fire?' — -- Question: What kind of heart rhythm problems will cause my defibrillator to fire? Answer: Your defibrillator is ...

Dr. Naccarelli answers the question: 'Heart Rhythm Meds Causing More Danger?' — -- Question: I have heard that the heart rhythm medicine that I am taking to keep my heart out of an abnormal heart ...

Malignant arrhythmias are dangerous heart rhythm problems that can lead to cardiac arrest, most often originating in the heart’s lower chambers. These arrhythmias are frequently linked to underlying ...

Excessive calcium in the blood, known as hypercalcemia, can disrupt the heart’s electrical system, potentially leading to an irregular heartbeat or arrhythmia. Hypercalcemia is more likely to cause a ...

An arrhythmia is a heart rhythm that is irregular, too fast, or too slow. Transient idiopathic arrhythmia is a type of temporary irregular heart rhythm that does not have a cause doctors can identify.

Atrial fibrillation, or A-fib, is an irregular heart rhythm that increases a person’s risk of stroke, heart failure, and even premature death. While many risk factors contribute to A-fib, one stands ...

Genetic testing is moving from predicting heart attacks years down the line to flagging dangerous heart rhythms before they ever appear on an electrocardiogram. Instead of waiting for symptoms, ...

The human heart beats roughly 3 billion times during the course of an average lifetime. Every single time it beats, blood is drawn into its two upper chambers, held there briefly by a network of ...

Atrial fibrillation, or A-fib, is an irregular heart rhythm that increases a person’s risk of stroke, heart failure and even premature death. While many risk factors contribute to A-fib, one stands ...

Electrocardiologists are cardiologists who have received additional training in testing for and treating heart rhythm problems. Electrocardiologists are also known as electrophysiologists, cardiac ...