A supraventricular arrhythmia is an irregular heart rate that begins above the ventricles, or lower chambers of the heart. Most, but not all, supraventricular arrhythmias begin in the atria, or top ...

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 — ...

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 ...

Arrhythmia and dysrhythmia are terms that both describe an abnormal heart rate or rhythm, with arrhythmia being the more commonly used term. An abnormal heart rate can be either faster (tachycardia) ...

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 ...

Concomitant cardiac arrhythmias are commonly seen in patients with hypertension, although the mechanism of this association is unclear. The contribution of hypertension to the development of atrial ...

It's essential to seek emergency care if a rapid heartbeat is paired with confusion or chest pain. ER treatments for tachycardia include medications and electrical cardioversion. Managing stress and ...