What is the role of an implantable pulse generator in a cardiac device?

The role of an implantable pulse generator (IPG) in a cardiac device primarily involves generating electrical impulses that stimulate the heart to maintain an appropriate rhythm. While it is true that the IPG includes components that function similarly to a battery pack, its main purpose goes beyond just serving as a power source.

An implantable pulse generator is fundamental in controlling heart rhythm, especially for patients with arrhythmias or those requiring pacing support. It delivers timely electrical impulses to the heart, ensuring that it beats at a regular rate and coordinates its contractions. This function is critical for patients who may suffer from bradycardia or other heart rhythm disorders, as it helps maintain adequate blood circulation and prevents complications associated with irregular heartbeats.

Additional aspects, such as monitoring patient health or sensing electrical signals, are indeed important functions associated with cardiac devices, but they do not capture the primary role of pacemakers and the IPG. The generator's focus is on rhythm control through pacing directly, establishing it as an essential component in many cardiac therapeutic strategies.