Author + information
- F. Zanon1,
- L. Marcantoni1,
- E. Baracca1,
- G. Pastore1,
- L. Roncon1,
- S. Aggio1,
- C. Picariello1,
- D. Lanza1,
- S. Giatti1 and
- F. Noventa1
Multipoint pacing (MPP) in CRT produces a more uniform ventricular depolarization and could reduce the arrhythmic burden in patients implanted with an ICD. Aim of the study was to compare the ventricular arrhythmic burden in a long term follow up in two homogeneous group of CRT patient, the first implanted with bipolar LV pacing lead and the latter with MPP.
We retrospectively evaluated the incidence of ventricular arrhythmias in 100 patients implanted with CRT-Defibrillator (46 with MPP, 54 with standard biventricular pacing) over a mean follow up of 23±14 months. We considered the first ventricular event requiring ICD intervention.
No significant differences in clinical characteristics between the two groups were found. 7 pts in MPP group (15%) and 23 pts in non-MPP (43%) group experienced ventricular arrhythmias treated with ATPs or shocks. The time of the first event on average was 410 days in MPP group vs 498 in non-MPP group.
|AF at implant||32||17||15||0.29|
|VT during follow up||30||7||23||0.004|
In our series of CRT patients MPP reduced the ventricular arrhythmias compared to standard bipolar pacing.