User Manual

16. MAIN FUNCTIONS
16. MAIN FUNCTIONS
16.1. AUTOMATIC LEAD MEASUREMENTS
Automatic pacing lead impedance measurement:
A lead impedance measurement is automatically performed on atrial and ventricular leads
every 6 hours. The daily mean impedance is stored for each chamber.
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. ATRIAL TACHYARRHYTHMIA MANAGEMENT
Mode Switch:
This function is designed to limit the acceleration and variation of ventricular rate in the
presence of atrial arrhythmia.
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 treatment of slow VTs.
SORIN – INTENSIA CRT-D 174 – U151A
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