Operator and Centre Characteristics, And Choice of Pacing Mode

Single- or dual-chamber devices may be implanted in patients requiring a permanent pacemaker (PPM) with a preserved left ventricular ejection fraction and without permanent atrial fibrillation (AF). Although studies have failed to show a mortality benefit of dual- over single-chamber pacing, dual-chamber pacing is associated with lower risks of AF and pacemaker syndrome. As a result of these data, international guidelines recommend dual-chamber pacing as the default option in patients with AV block (AVB) or sinus node disease (SND) but without permanent AF.
Source: Heart Rhythm - Category: Cardiology Authors: Source Type: research