What happens when a pacemaker correctly senses a heartbeat?

When a pacemaker correctly senses a heartbeat, it typically stops pacing. This function is a critical aspect of how pacemakers operate. The primary role of a pacemaker is to provide electrical stimulation to the heart when it cannot generate an adequate heartbeat on its own. However, once the pacemaker detects that the heart is producing its own rhythm or has adequately responded with a heartbeat, there is no need for additional pacing.

This sensing ability allows the pacemaker to effectively monitor the heart's activity and adjust its pacing accordingly. By stopping pacing, the device ensures that it does not interfere with the heart's native electrical signals, which can maintain a more natural rhythm and function of the heart.