In a pacing device, what does the term 'inhibited' refer to?

In the context of pacing devices, the term 'inhibited' refers to the situation in which a pacing pulse is withheld. This occurs when the device detects native cardiac activity that meets certain criteria. Essentially, when the heart generates electrical impulses on its own, the pacemaker recognizes this intrinsic signaling and does not deliver an electrical pulse, thereby conserving battery life and allowing the heart to function naturally.

This functionality is critical in preventing unnecessary pacing, which can lead to discomfort for the patient and increased wear on the device. Thus, the ability of the pacemaker to inhibit its own pacing in the presence of adequate intrinsic heart rhythms is an essential feature that optimizes the interaction between the device and the patient’s heart.