1. Upper Zone Threshold (bpm) Lower Zone Threshold (bpm)
Supplement 2
Subjects (%)
Upper Zone Threshold (bpm)
170
180
190
200
210
220
230
240
250
Single Zone
48.9% (22/45)
4.4% (2/45)
17.8% (8/45)
11.1% (5/45)
6.7% (3/45)
0% (0/45)
2.2% (1/45)
Lower Zone Threshold (bpm)
Dual Zone
0% (0/1579)
0.1% (1/1579)
0.4% (7/1579)
0.3% (4/1579)
1.1% (17/157 9)
0.9% (14/157 9)
0.6% (9/1579)
5.6% (88/157 9)
1.9% (30/157 9)
1.5% (23/157 9)
0.4% (6/1579)
27.9% (441/15 79)
8.1% (128/15 79)
14.4% (228/15 79)
12.8% (202/15 79)
1.8% (28/157 9)
2.3% (36/157 9)
3.1% (49/157 9)
2.3% (37/157 9)
3.7% (58/157 9)
Figure Day Complication
Rate Zone Threshold Programming: Frequency of available rate cut-offs programmed at implant for patients programmed with single zone and dual zone discrimination algorithms, in beats per minute (bpm). Rates detected above the upper zone threshold are in the “shock zone” and rates detected between the lower zone threshold and upper zone threshold are in the “conditional zone”.