Ectopic Beats: Insights from Timing and Morphology

Card Electrophysiol Clin. 2018 Jun;10(2):257-275. doi: 10.1016/j.ccep.2018.02.013.

Abstract

Premature complexes are electrical impulses arising from atrial, junctional, or ventricular tissue, leading to premature heart beats. Premature atrial beats are much more frequent than those arising in the atrioventricular junction but less frequent than premature beats from the ventricles. Although they are usually benign and highly prevalent in the general population, they could trigger sustained supraventricular and ventricular arrhythmias, and cause cardiomyopathies. The aim of this article was to review the main electrocardiology features of premature complexes and discuss their implications in clinical practice.

Keywords: Arrhythmias; Atrial fibrillation; Ectopic beats; Electrocardiography; Premature atrial beats; Premature junctional beats; Premature ventricular beats.

Publication types

  • Review

MeSH terms

  • Cardiac Complexes, Premature / diagnosis
  • Cardiac Complexes, Premature / physiopathology*
  • Electrocardiography*
  • Heart Atria / physiopathology*
  • Heart Conduction System / physiopathology*
  • Heart Ventricles / physiopathology*
  • Humans
  • Time Factors