Operation of the Vp suppression algorithm
Tracing
Manufacturer Biotronik
Device PM
Field Pacing Modes
N° 3
Patient
- 72-year-old man
- Evia DR-T dual chamber pacemaker (Biotronik) for paroxysmal third degree atrioventricular block
- Vp suppression algorithm
Graph and trace
- Atrial sensing and ventricular pacing with programmed AV delay (DDD)
- Prolongation of the AV delay to 450 ms (hysteresis of the AV delay) for 8 consecutive cycles with no observed spontaneous conduction
- Return to DDD pacing with the programmed AV delay
Comments
- This tracing highlights the interest of the Vp-suppression algorithm (Biotronik) to reduce the pourcentage of unnecessary right ventricular pacing
- The AAI-DDD (Vp-suppression) mode has been designed to allow pacing in ADI mode with permanent monitoring of atrioventricular conduction and switching to DDD mode when the device detects an alteration in atrioventricular conduction
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