User's Manual

VENTRICULAR TACHYARRHYTHMIA DETECTION
Therapy zones Values Nominal value "As shipped"
value
Slow VT detection
zone
Slow VT ON-Slow VT OFF Slow VT OFF Slow VT OFF
VT detection zone
VT ON-VT OFF VT OFF VT OFF
Fast VT / VF detec-
tion zone
Fast VT+VF ON-VF ON VF ON VF ON
Slow VT rate (lower
limit) (ppm)
From 100 to 200 by steps of 5 190 190
VT rate (lower limit)
(ppm)
130-135-140-145-150-155-160-165-170-
175-180-185-190-195-200-210-220-230
190 190
VF rate (lower limit)
(ppm)
150-155-160-165-170-175-180-185-190-
195-200-210-220-230-240
190 190
Fast VT rate (upper
limit) (ppm)
155-160-165-170-175-180-185-190-195-
200-210-220-230-240-255
190 190
Slow VT persistence
(cycles)
4-6-8-12-16-20-30-50-100-200 12 12
VT persistence (cy-
cles)
4-6-8-12-16-20-30-50-100-200 12 12
VF persistence (cy-
cles)
From 4 to 20 by steps of 1 6 6
Detection criteria Values Nominal value "As shipped"
value
Slow VT and VT de-
tection criteria
Rate Only-Stability-Stability+-
Stability/Acc-Stability+/Acc-PARAD-
PARAD+
PARAD PARAD
Fast VT detection
criteria
Rate+Stability-Rate Only Rate+Stability Rate+Stability
Majority: (X/Y), Y
(cycles)
8-12-16 8 8
Majority: (X/Y), X (%)
65-70-75-80-90-95-100 75 75
Window of RR stabil-
ity for Slow VT and
VT (ms)
30-45-65-80-95-110-125 65 65
Window of RR stabil-
ity for fast VT (ms)
30-45-65 30 30
Acceleration (%)
6-13-19-25-31-38-44-50 25 25
Long cycle persis-
tence extension (cy-
cles)
From 0 to 16 by steps of 1 10 10
Long cycle gap (ms)
15-30-45-65-80-95-110-125-140-155-
170-190-205
170 170
Atrial monitoring
Yes-No Yes Yes
21.2.
21. PROGRAMMABLE PARAMETERS
62 SORIN – PLATINIUM 4LV SonR CRT-D 1844 – U906A