OSYPKA PACE 203H, Инструкция по эксплуатации

Страница: 39 / 139

PACE 203H – Instructions for Use
5I-17-016X-B-20 39 / 139
Parameter Range (Step Width) Unit
Atrial
Sensitivity
0.2 (0.1) 2.0
2.0 (0.2) 5.0
5.0 (0.5) 10.0
10.0 (1.0) 20.0
–.– (= no sensing)
mV
Ventricular
Sensitivity
1.0 (0.1) 2.0
2.0 (0.2) 5.0
5.0 (0.5) 10.0
10.0 (1.0) 20.0
–.– (= no sensing)
mV
Table 15: Ranges and step widths (in
parenthesis) for sensitivity settings
Warning
: Increasing the mV values
indicates decreasing the sensitivity. An
atrial value of 0.2 mV and a ventricular
value of 1.0 mV represent the highest
sensitivity in the respective channels.
The value "infinite" results in an asyn-
chronous mode for the corresponding
channel. An inhibition of the stimulation
pulse in this channel is not possible.
9.8.4 Adjustment of A-V Delay
By rotating the
A-V DLY
dial clockwise,
the A-V Delay will become extended
within the range shown in Table 16. The
actual A-V Delay and the parameter
intensity bar diagram can be observed in
the upper display. The parameter inten-
sity bar diagram corresponds to the A-V
Delay. The leftmost bar represents the
timely occurrence of the atrial event and
is always displayed. A second bar repre-
sents the timely occurrence of the ven-
tricular event and is "shifted" right or left,
related to the increase or decrease the
A-V Delay, respectively.
Parameter Range (Step Width) Unit
A-V Delay 5, 10 (10) 400 ms
Table 16: Range and step width (in pa-
renthesis) for setting of A-V Delay
The P-V delay (PVD) is coupled with the
A-V Delay (AVD). Adjusting the AVD
also sets the PVD. By default the differ-
ence AVD-PVD is equal to 30 ms. That
is, PVD is 30 ms shorter than AVD.
Note
: When atrial Auto Sense is ena-
bled, the A-V Delay and P-V delay are
limited to a minimum of 30 ms. This is
because Auto Sense requires a specified
time to measure the intrinsic atrial activi-
ty. In case the atrial Auto Sense is ena-
bled, and the A-V Delay was set to a
value smaller than 30 ms, then the A-V
Delay will be automatically extended to
30 ms. This action is indicated by a tran-
sient informative message in the lower
display (see also chapter 9.9.4).
Note
: Because of its safety feature "pro-
tection against abnormal settings" (see
chapter 9.22.7), PACE 203H prevents
increasing the A-V Delay to a value
which would not guarantee a minimum
atrial sensing phase in dual chamber
demand modes, or a minimum V-A inter-
val in the D00 mode, respectively. The
limitation of the A-V Delay value will be
indicated by a transient warning mes-
sage in the lower display.