- MVP (Managed Ventricular Pacing) is an atrial-based pacing mode designed to promote intrinsic conduction in Medtronic devices
- MVP mode, AAI<=>DDD, provides AAI mode pacing while monitoring AV conduction (ADI mode)
- MVP tolerates the presence of intermittent blocked P-waves; a single blocked P wave does not induce switching to DDD
- short AV delay (80 ms) with safety ventricular pacing on the cycle following the blocked P wave is the signature feature of this mode
- there cannot be two consecutive blocked atrial activities
- there is a single criterion for switching to the DDD mode; the device automatically switches from AAI to DDD mode, when no ventricular sensed event occurs in 2 of 4 preceding A-A intervals
- once the device has switched to DDD mode, it periodically checks AV conduction for an opportunity to return to AAI mode
- the first AV conduction check occurs 1 minute after switching to DDD mode
- if the next A-A interval does not include a sensed ventricular beat, the conduction check fails, and the device switches back to the DDD mode; the time between conduction checks then doubles (2, 4, 8 … minutes, up to a maximum of 16 hours) with each failed conduction check
- to answer, some limitations of the first version, the MVP algorithm has been updated in the most recent devices (possibility to switch to DDD for long PR intervals and reduction of the duration of the ventricular pause
10 things you need to know about MVP
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