BIOTRONIK Lumax DR ICD Series, Technical Manual, Page: 81 / 176

Lumax Technical Manual 73
2.8.1 Therapy Options
The Lumax ICDs/CRT-Ds offer multiple therapy options for each
tachyarrhythmia class (VT1, VT2, VF). Therapy options (up to 10
ATP sequences and 8 shocks) are available for the VT1 and VT2
zones, whereas ATP One Shot and up to 8 shock therapies are
available for the VF class. The specific characteristics of an ATP
and shock therapy are independently programmed for each
VT/VF zone.
The ATP and shock therapy options are discussed in detail in the
following sections.
2.8.2 Anti-Tachycardia Pacing (ATP)
Anti-tachycardia pacing therapy (ATP) is available in both VT
detection zones. Available modes of ATP include
Burst , Ramp ,
and Burst + PES (Programmed Extra Stimuli). In addition, the
Burst and Ramp modes allow interval scanning of the R-S1
Interval , the S1 Decrement , or both. The Attempts parameter
determines the number of burst schemes to be delivered before
the scan parameter is incremented.
Burst – This mode will deliver a series of pacing stimuli with user
defined duration of the burst ( Number S1 ), coupling cycle length
( R-S1 ) and burst rate ( S1-S1 ). The coupling interval and the start
interval are calculated from the intrinsic R-R average.
Ramp - This mode will deliver a series of pacing stimuli with the
above options including a parameter which decrements each
successive stimuli interval in the burst.
Burst + PES - This mode provides a pulse train followed by one
additional timed stimuli. The coupling cycle length of the burst
and each extra stimulus (
S1-S2 Interval ) is individually
programmed either as an adaptive value (as a percentage) or as
an absolute value (expressed in milliseconds).
Ventricular Pacing - This parameter defines the type of
ventricular pacing performed during delivery of ATP sequences in
CRT-Ds and is programmable to biventricular (VV delay = 0 ms)
or right ventricular only.