Physiologic pacing: new modalities and pacing sites

Pacing Clin Electrophysiol. 2006 Dec:29 Suppl 2:S73-7. doi: 10.1111/j.1540-8159.2006.00493.x.

Abstract

Right ventricular (RV) apical pacing impairs left ventricular function by inducing dys-synchronous contraction and relaxation. Chronic RV apical pacing is associated with an increased risk of atrial fibrillation, morbidity, and even mortality. These observations have raised questions regarding the appropriate pacing mode and site, leading to the introduction of algorithms and new pacing modes to reduce the ventricular pacing burden in dual chamber devices, and a shift of the pacing site away from the RV apex. However, further investigations are required to assess the long-term results of pacing from alternative sites in the right ventricle, because long-term results so far are equivocal. The potential benefit of prophylactic biventricular, mono-chamber left ventricular, and bifocal RV pacing should be explored in selected patients with a narrow QRS complex, especially those with impaired left ventricular function. His bundle pacing is a promising and evolving technique that requires improvements in lead technology.

Publication types

  • Review

MeSH terms

  • Arrhythmias, Cardiac / physiopathology*
  • Arrhythmias, Cardiac / prevention & control*
  • Cardiac Pacing, Artificial / adverse effects*
  • Cardiac Pacing, Artificial / methods*
  • Heart Conduction System / physiopathology*
  • Heart Ventricles / physiopathology*
  • Humans
  • Ventricular Dysfunction, Left / etiology*
  • Ventricular Dysfunction, Left / prevention & control