User's Manual

48 – US-ENGLISH
16.3. VENTRICULAR TACHYARRHYTHMIA
MANAGEMENT
Ventricular tachyarrhythmia prevention: Set of algorithms that can be
used to avoid the circumstances of ventricular tachyarrhythmia onset.
Searching for a long cycle (P And R based Arrhythmia Detection+:
PARAD+): Additional arrhythmia classification criterion to improve
identification of atrial fibrillation and avoid inappropriate shocks.
Fast VT treatment: Applies detection criteria on fast ventricular
tachycardia, that are different from those of the VT zone, as well as
different therapies. The fast VT zone is included in the VF zone: its
lower limit is determined by the programmed value for the VF zone and
its upper limit by the programmed value for the fast VT zone.
Polarity alternation on Max shock: Reverses the programmed polarity of
every second shock set at maximum energy. The number, type, and energy
of shocks is independently programmable by detection zone.
16.4. PACING
BTO (Brady Tachy Overlap): Enables cardiac resynchronization
therapy within the slow VT zone to preserve patient exercise capacity,
without affecting detection or treatments of slow VTs.
Post-shock mode: After any automatic shock therapy, the post-shock
mode makes it possible to apply a pacing mode other than the
standard antibradycardia pacing mode and/or with different pacing
parameters.
SafeR (AAI <> DDD) mode: Is intended to minimize deleterious
ventricular pacing. The defibrillator functions in AAI mode, and
temporarily switches to DDD mode upon the occurrence of AVB III,
AVB II, AVB I and ventricular pause.