sorin Intensia VR 124, Руководство по имплантации

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16. MAIN FUNCTIONS
16. MAIN FUNCTIONS
16.1. AUTOMATIC LEAD MEASUREMENTS
Automatic pacing lead impedance measurement:
A lead impedance measurement is automatically performed on the lead every 6 hours. The
daily mean impedance is stored.
Automatic coil impedance measurement:
A coil impedance measurement is automatically performed on RV and SVC coils once a
week. The result is stored in the device memory.
16.2. VENTRICULAR TACHYARRHYTHMIA MANAGEMENT
Searching for a long cycle (St):
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.
16.3. PACING
BTO (Brady Tachy Overlap):
Allows pacing in the slow VT zone, without affecting arrhythmia detection specificity.
Post-shock mode:
After any automatic shock therapy, the post-shock mode makes it possible to apply different
pacing parameters.
16.4. 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.
36 SORIN – INTENSIA VR 124 – U153A