An arrhythmia is an irregular heartbeat. An arrhythmia may feel like a racing heart or fluttering. It is not always serious but can sometimes indicate a potentially fatal heart problem. Arrhythmias — ...

The heart, that yeoman of all organs, usually works extremely hard and very evenly. Its owners rarely, if ever, muse much about its operation, unless the individuals are suffering from arrhythmia, a ...

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 ...