Pacemaker essentials: Learn to recognize oversensing, its causes and how it is resolved (through decreasing sensitivity or the use of alternate algorithms).
Pacemaker essentials: How to recognize failure to sense, its causes and how it is resolved (increasing sensitivity or lead re-site).
Pacemaker essentials: Learn to recognize failure to capture, its causes, and how it is resolved (increasing output or lead resite).
A discussion of some of the common pacemaker malfunctions with some great example ECGs. LITFL EKG Library