User's Manual

46 – US-ENGLISH
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.
Anti-PMT protection: Is intended to protect the patient from
Pacemaker-Mediated Tachycardia (PMT) without reducing atrial
sensing capability of the device.
16.5. SENSING
Automatic Refractory Periods: Optimize sensing and make the
implant progamming easier. These periods are composed of a
minimal Refractory Period and a triggerable Refractory Period. The
duration of the refractory periods lengthens automatically as needed.
Committed period: In DDI or DDD modes, the committed period is a
non-programmable 95 ms ventricular relative refractory period that
starts with atrial pacing. If a ventricular event is sensed during the
committed period, but outside the blanking period, the ventricle is
paced at the end of the committed period. The committed period
prevents inappropriate ventricular inhibition if crosstalk occurs.
Protection against noise: Allows the distinction between ventricular