Atrial premature beats (APBs) are a type of arrhythmia caused by the atria generating abnormal early beats before the normal heartbeat. These premature beats are often weak and inefficient in pumping blood, leading to sensations of skipped beats and palpitations that you may be experiencing.

Extrasystoles represent one of the most frequently encountered cardiac arrhythmias in clinical practice. This arrhythmia is characterized by the occurrence of premature beats, resulting in an irregular heart rhythm. Extrasystoles can be a physiological variant and not dangerous in healthy people without underlying heart disease.