A harmless early extra heartbeat and a chaotic, racing, potentially lethal heart rhythm are obviously two different things. Yet, both fit the medical definition of an arrhythmia. "The majority of ...

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 ...

Irregular heartbeats, or arrhythmia, can significantly affect a person’s quality of life and overall health. When medication and lifestyle changes are ineffective, doctors may recommend surgery to ...