User Manual Part 2

TAC HYARRHYTHMIA THERAPY
VENTRICULAR THERAPY
4-5
The lowest strength therapy is in the ATP columns; the therapy strengths
increase as you move to the right in the table.
NOTE: In the VT- 1 zone of a 3-zone confi guration or the VT zone of a
2-zone configuration, one or two ATP schemes may be programmed as the
only therapy, with all shocks in the lowest zone programmed to Off. If those
pacing schemes do not terminate an arrhythmia detected in the VT-1 zone, no
further therapy will be delivered in the episode unless the rate is redetected
in a higher zone.
1
3
6
7
8
9
4
5
2
Zone ATP1 ATP2 QUICK
CONVERT ATP
Shock 1 Shock 2 Remaining Shocks
VF
VT
VT-1
On/Off
N/A
N/A
2 J
3 J
0.1 J
11 J
9 J
2 J
Burst Off
Ramp Burst
max max max max max max
max max max max
max max max
When the rhythm accelerates to the VF zone, Shock
2 in the VF zone is delivered since Shock 1 is a lower
energy level than Shock 1 in the VT zone.
ATP1 in the VT zone is delivered
because it is considered of equal
strength to VT-1 ATP2 therapy.
Figure 4-3. Therapy delivery pro gression, ATP1 in the V T zone and shock 2 in th e VF zone
3
1
8
9
5
4
2
6
7
Zone ATP1 ATP2 QUICK
CONVERT ATP
Shock 1 Shock 2 Remaining Shocks
VF
VT
VT-1
On/Off
N/A
N/A
11 J
5 J
3 J
17 J
9 J
5 J
Burst Scan
Ramp Burst
max max max max max max
max max max max
max max max
When the rhythm accelerates back to the VT
zone, ATP2 therapy is delivered because ATP1
has already been used during the episode.
Figure 4-4. Therapy delivery progression, ATP2 therapy
- DRAFT -