Abstract
Ventricular safety pacing (VSP) is an algorithm used to prevent crosstalk inhibition and ventricular capture during the vulnerable period. We report a 78-year-old man with implantable dual-chamber defibrillator, in whom clusters of ventricular tachycardias (VTs) were provoked by the VSP. During rapid DDDR pacing, the delivery of the VSP after every other atrial-paced beat resulted in short-long-short ventricular sequences and induced VTs. An atrial-based lower rate timing, long atrioventricular pacing interval, and automatic gain control also accounted for this arrhythmogenic ventricular sequence. The VSP and the subsequent VT were eliminated by decreasing the pacing rate.
Original language | English |
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Pages (from-to) | 1238-1242 |
Number of pages | 5 |
Journal | Europace |
Volume | 10 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2008 Oct 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Physiology (medical)