A pacemaker is a small, battery operated device. Cardiologist implants pacemaker in the chest to manage or control irregular heartbeats or abnormal heart rhythms. Pacemaker is used to treat arrhythmias. In arrhythmias heart beats too fast, too slow or with irregular rhythms. It sends signal to the heart to beat at a normal rate.
There are now various grades of pacemaker
- Single chamber/ dual chamber pacemaker
- AICD
- CRT-D