User Manual

Table Of Contents
92 Lumax Technical Manual
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 – In the Lumax 300/340 & 500/540 models, 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). In the Lumax 600/640 & 700/740
models, Burst + PES is only available at DFT test for EP
examinations.
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.
Number S1 - This parameter defines the number of stimuli for an
ATP. For Burst + PES, a single extra stimulus with a separate
parameter setting is coupled. In the Lumax 600/640 & 700/740
models, Burst + PES is only available at DFT test for EP
examinations.
Add S1 - This feature can be programmed with any Burst, Ramp,
or Burst + PES (Lumax 300/340 & 500/540 models only) scheme.
When “Add S1” is “ON,” the number of S1 intervals is
incremented by one on each successive ATP therapy. The next
S1-S1 interval is dependent on the initial start interval (S1
decrement) and the programmed Scan Decrement (if activated).
R-S1 Interval - The R-S1 programmable coupling interval occurs
at the beginning of each ATP. It defines the interval between the
last R-wave signal and the first stimulus (S1). The second
stimulus always follows the first one with the same interval.
S1 Decrement - The S1 decrement continuously reduces the
pulse intervals of the ATP from the second pulse onward.