Why is it done?
Implantation of the permanent pacemaker is done in patients who suffer from slowing of heart rate. This may be due to impairment of generation of the normal current inside the heart, or its conduction thru the various parts of heart. In both these situations, the patient has slow heart rate, may suffer from weakness, dizziness, or fainting spells.

Often these conditions may be life threatening. The pacemaker monitors the heart beat and maintains the heart rate and rhythm according to the programmed parameters inside the pacemaker.