User Manual Part 1

4-18
TACHYA RRHYTHMIA THERAPY
ANTITACHYCARDIA PACING THERAPIES AND PARAMETERS
290
ms
270
ms
280
ms
270
ms*
240
ms
250
ms
260
ms
240
ms
250
ms
220
ms
220
ms
230
ms
Minimum
interval
reached
4-Cycle
A
verage
= 370 ms
PARAMETER
Number of Bursts
Pulses per Burst:
Initial
Increment
Maximum
Coupling Interval
Decrement
Burst Cycle Length
Ramp Decrement
Scan Decrement
Minimum Interval
VALUE
3
4
1
6
81%
0 ms
78%
10 ms
20 ms
220 ms
* When a Scan Decrement is programmed to On, the Coupling Interval and
BCL, if programmed as a percentage, will not re-adapt following redetection.
Maximum Number of Pulses
reached (6) and Maximum
Number of Bursts reached (3)
Number of Pulses
incremented by 1
Ramp Burst Ramp/Scan Burst Ramp/Scan Burst
Redetect Redetect
C.I. 300 ms
Scan Scan
C.I. 300 ms* C.I. 300 ms*
Figure 4-18. Ramp/Scan scheme , interaction of ATP parameters
To program a Ramp/Scan scheme, both the Scan Decrement and Ramp
Decremen t are program med to values g rea te r than 0 ms.
ATP Pulse Width and ATP Amplitude
The ATP Pulse Width is the duration of a pacing pulse. The ATP Amplitude is
the leading edge voltage of a pacing pulse.
The ATP Pulse Width and ATP Amplitude parameters share the same value
as the post therapy pacing Pulse Width and Amplitude. If the programmable
value is changed for one parameter, that value will be reflected in the other
parameters.
TheprogrammedATPPulseWidthandATPAmplitudearesharedforallATP
schemes regardless of zone and position in a prescription. The ATP amplitude
and pulse width share the same programmable value as the post-therapy
pacing settings.
- DRAFT -