A pacemaker battery usually lasts 7 to 8 years. When the battery runs down, a new pacemaker will be implanted. The surgery to replace the old pacemaker with a new one usually requires a local anesthetic. In most cases, your original pacemaker leads will not need to be replaced.

The ICD battery will be checked during regular checkups, which should occur every three to six months. When the battery is nearly out of power, your old shock generator is replaced with a new one during a minor outpatient procedure.

Catheter ablation is a minimally invasive procedure to treat cardiac arrhythmias. It can relieve symptoms and improve quality of life. During an ablation, the doctor destroys small areas in the heart that are firing off abnormal electrical impulses and causing atrial fibrillation, aflutter, ventricular tachycardia, supraventricular tachycardia or premature ventricular contractions.

Holter Monitors are a portable device that records the rhythm of the heart continuously, typically for 24–48 hours, by means of electrodes attached to the chest.