Which arrhythmia is considered the most common?

Atrial fibrillation is recognized as the most common arrhythmia encountered in clinical practice. This irregular and often rapid heart rate can lead to various complications, such as an increased risk of stroke and heart failure. The prevalence of atrial fibrillation increases with age and is associated with various risk factors, including hypertension, heart disease, and diabetes.

This arrhythmia is characterized by chaotic electrical activity in the atria, leading to ineffective atrial contractions and an irregularly irregular ventricular response. Its widespread occurrence can be attributed to both the aging population and the increasing identification of the condition in clinical settings.

The other arrhythmias listed, like atrial flutter, ventricular tachycardia, and bradycardia, are less common and are often associated with different underlying conditions and presentations. Thus, atrial fibrillation's high prevalence solidifies its status as the most common arrhythmia in the general population.