What are the 3 indications for pacing?

The three primary indications for cardiac pacing are symptomatic bradycardia, which can result from conditions like sinus node dysfunction or heart block; certain types of tachyarrhythmias, such as atrial fibrillation with rapid ventricular response leading to hemodynamic instability; and the prevention of cardiac arrest in patients with high risk of asystole or severe bradyarrhythmias. Pacing can help restore appropriate heart rates and improve symptoms associated with these conditions.