The three letters of a pacemaker typically refer to the first three positions of the NBG (North American Pacing and Electrophysiology Group) code, a standardized system used worldwide to describe the basic functions of a pacemaker. These letters indicate the chamber(s) being paced, the chamber(s) being sensed, and the pacemaker's response to a sensed cardiac event.
Understanding the Pacemaker Code
The NBG code is a critical tool for healthcare professionals to quickly understand a pacemaker's programmed settings and functionality. While the full code can include up to five letters, the first three are fundamental and provide essential information about how the device interacts with the heart.
Here's a breakdown of what each of the first three letters signifies:
| Position | Function | Common Codes | Description
