66-year-old man implanted with a triple chamber defibrillator Protecta XT for very severe ischemic cardiomyopathy with left bundle branch block; episode of cardiac decompensation and palpitations.
Plots:
Tracing:
This tracing demonstrates the difficulty in managing relatively slow VTs. In this patient, the tachycardia rate was too low to be treated and the VT lasted for several hours. Finally, it was responsible for an episode of cardiac decompensation, related to different mechanisms: loss of biventricular pacing, tachycardia, atrioventricular dissociation… Lowering the lower limit of the VT zone allowed for the treatment of this arrhythmia by anti-tachycardia pacing and prevented the occurrence of a new episode of cardiac decompensation.
