The primary reason for considering treatment is the presence of symptoms. Pacemaker implantation is the primary treatment modality of symptomatic<unk> . The goal of this treatment modality is to relieve symptoms associated with<unk>  and improve quality of life. Dual chamber pacemakers are preferred due to the possibility of developing atrioventricular block as well as long term cost-effectiveness relative to single-chamber atrial pacemakers. In tachycardia-bradycardia syndrome, medication-based management can treat atrial tachyarrhythmias. However, these medications may exacerbate underlying bradyarrhythmia. Therefore, a dual-chamber pacemaker capable of managing atrial tachyarrhythmias as well as bradyarrhythmias is implanted before drug therapy is begun.
Sinus node dysfunction
Pacemaker crosstalk
Cardiac fibrosis
Primary tumors of the heart
Ventricular dyssynchrony
Coronary vasospasm
Ectopic pacemaker
Ventricular remodeling