Reduction of percentage ventricular pacing with MVP
Tracing
Manufacturer Medtronic
Device PM
Field MVP
N° 1
Patient
- 69-year-old man
- Dual-chamber pacemaker (Medtronic) for syncope and sinus node dysfunction
- First part of the tracing: DDD mode
- Second part of the tracing: MVP mode
Graph and trace
Tracing 1a: 12 lead ECG
- DDD mode: atrial pacing and fusion between sensed and paced ventricular activities (AP-VP)
- MVP mode: atrial pacing and ventricular sensing (AP-VS)
Tracing 1b: EGM
- The EGM confirms the resumption of spontaneous conduction after programming of the MVP mode
Comments
- This tracing highlights the interest of MVP to reduce unnecessary right ventricular pacing in patients with sinus dysfunction
- DDD mode: 100% VP; MVP: 100% VS
- This should prove beneficial in terms of ventricular remodeling and occurrence of atrial arrhythmia
- MVP is proposed in Medtronic devices to reduce the percentage of ventricular pacing without compromising the safety
- MVP mode, AAI(R) <=> DDD(R), enables pacing in ADI mode while monitoring atrioventricular conduction
- Backup ventricular support for transient loss of AV conduction
- Ability to automatically switch to DDD pacing during AV block
- Periodic conduction checks at progressively increasing intervals while operating in DDD mode, with the ability to switch back to AAI mode when AV conduction resumes
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