Atrioventricular synchrony in the background of ventricular noise and undersensing

Ann Noninvasive Electrocardiol. 2017 Jul;22(4):e12425. doi: 10.1111/anec.12425. Epub 2017 Jan 3.

Abstract

The 24-hr electrocardiogram (ECG) interpretation in patients with double-chamber pacemakers may be challenging. The difficulty increases if not well-known pacemaker algorithm and device malfunction coexist. We show atrial synchronization pace (ASP) in a patient with ventricular lead damage. We provide detailed description of electrocardiogram and intracardiac electrogram. ASP may confuse 24-hr ECG monitoring interpretation, especially in patients with ventricular lead dysfunction.

Keywords: atrial synchronization pace; electrocardiogram; lead failure.

Publication types

  • Case Reports

MeSH terms

  • Aged, 80 and over
  • Atrial Premature Complexes / complications
  • Atrial Premature Complexes / diagnosis*
  • Atrial Premature Complexes / physiopathology
  • Cardiac Pacing, Artificial / methods*
  • Electrocardiography, Ambulatory / methods*
  • Female
  • Humans
  • Pacemaker, Artificial*
  • Ventricular Dysfunction / complications
  • Ventricular Dysfunction / diagnosis*
  • Ventricular Dysfunction / physiopathology