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Patient
Same patient as previous tracing; device programmed in DDD mode 70 bpm followed by managed ventricular pacing (MVP) mode;
Trace
Initially, the pacemaker is programmed in DDD mode with a tracing identical to the previous tracing; at the end of the tracing, MVP mode is programmed and resumption of spontaneous atrioventricular conduction (atrial pacing and ventricular sensing);
Trace
The EGM confirms the resumption of spontaneous conduction after programming of the MVP mode (successful programming);
Exergue
Each manufacturer has developed a specific mode of pacing to decrease the percentage of unnecessary right ventricular pacing in non-dependent patients. The particular operational modalities of each manufacturer must be known by the physician in order to be able to interpret the specificities of each tracing.
There is extensive literature demonstrating the deleterious effect of prolonged right ventricular pacing. Similarly, any reduction in unnecessary ventricular pacing saves battery life thereby maximizing pacemaker life.