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 ...

Genetic mutations can impact the heart’s structure or electrical functions, potentially leading to inherited arrhythmias. Several types of heart arrhythmias, including atrial fibrillation, Brugada ...

An arrhythmia is an atypical heartbeat that is either much faster or slower than expected. Your heartbeat may be described as chaotic, rather than steady and predictable. There are several types of ...

Dysrhythmia and arrhythmia both mean the same thing: an unusual heart rhythm. The only difference is that the word dysrhythmia literally means “bad rhythm” while arrhythmia means “without rhythm.” ...

Sudden cardiac death (SCD) from arrhythmias is a leading cause of mortality. For patients at high SCD risk, prophylactic insertion of implantable cardioverter defibrillators (ICDs) reduces mortality.