Premature heart beat

Premature heart beat
A premature ventricular contraction marked by the arrow
SpecialtyCardiology

A premature heart beat or extrasystole[1] is a heart rhythm disorder corresponding to a premature contraction of one of the chambers of the heart. Premature heart beats come in two different types: premature atrial contractions and premature ventricular contractions. Often they cause no symptoms but may present with fluttering in the chest or a skipped beat. They typically have no long-term complications.

They most often happen naturally but may be associated with caffeine, nicotine, or stress. Usually no treatment is needed. They are the most common arrhythmia.[2]

  1. ^ "Premature ventricular contractions (PVCs)". Mayo Clinic. April 30, 2022. Retrieved June 1, 2022.
  2. ^ "Types of Arrhythmia". nhlbi.nih.gov. July 1, 2011. Archived from the original on June 7, 2015. Retrieved March 7, 2015.
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