A Pacemaker is a small device that sends small electrical impulses to the heart muscle to maintain a suitable heart rate or to stimulate the lower chambers of the heart or ventricles. A pacemaker may also be used to treat fainting spells (syncope). They can also be used to treat congestive heart failure.
There are several different types of pacemakers:
Single Chamber Pacemaker,
Dual Chamber Pacemaker,
Your physician will decide what type of pacemaker you need based on your heart condition.