Reentry arrhythmia occurs when electrical signals in the heart deviate from their usual path, creating a loop that causes repeated stimulation and disrupts the heart’s rhythm. Symptoms of reentry ...

Arrhythmias are due to problems with your heart’s electrical pathways, affecting its rate or rhythm. Heart conditions, electrolyte imbalances, and certain medications are among the causes that can ...

A newly discovered pathway between the heart and brain may explain why healthy people faint. The pathway appears to carry signals from the heart's lower pumping chambers to an area of the brainstem ...

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

Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

People with third degree heart block have an irregular heartbeat due to a total blockage of the electrical impulses that control the heart’s activity. It can lead to faintness and breathing difficulty ...

Incorporating high-sensitivity cardiac troponin (hs-cTn) testing into the traditional HEART pathway may improve detection of acute MI in patients presenting to the emergency department (ED) with chest ...