The Role of Cardiac Pacing in the Prevention of Atrial Fibrillation. Part I
Over the last decade, many report:, have indicated that single lead ventricular pacing (VVI or VVIR) compared with atrial-based (AAI or dual-chamber) pacing causes a higher incidence of chronic atrial fibrillation (AF) and thromboernbolic complications, especially in the sick sinus syndrome and the elderly. Patients with a history of paroxysmal AF before pacemaker implantation experience substantially fewer episodes with atrial based than with VVI or VVIR pacing. Furthermore, a number of new pacing techniques, including dual-site atrial stimulation, have emerged recently for the prevention of AF in selected patients.