User Manual Part 4

D-12
CLINICAL STU DY - CONTAK CD
Table D-3. Pre-implant assessment (continued)
All Patients
NYHA Class III/IV
Characteristic
CRT
(N = 248)
No CRT
(N = 253)
P-value
a
CRT
(N = 117)
No CRT
(N = 110)
P-value
a
Mean ±
SD
73 ± 12 75 ± 14 0.37 75 ± 13 74 ± 15 0.61
Range 43 - 108 48 - 120 43 - 108 50 - 120
Systolic Blood
Pressure (mmHg)
N 247 253 116 110
Mean ±
SD
118 ± 21 118 ± 21 0.95 116 ± 20 117 ± 23 0.72
Range 79 - 197 70 - 190 79 - 191 74 - 190
Diastolic Blood
Pressure (mmHg)
N 247 253 116 110
Mean ±
SD
67 ± 12 69 ± 12 0.27 68 ± 12 67 ± 14 0.85
Range 31 - 100 40 - 109 31 - 100 40 - 109
a. P-values for comparing means were calculated with Student’s t-test; p-values for comparing proportions were calculated w ith
Pearson’s chi-squared test.
b. PR interval and QRS duration were not obtained for thoracotomy patients.
Table D-4. Pre-imp lant history
All Patients
NYHA Class III/IV
Characteristic
CRT
(N = 248)
No CRT
(N = 253)
P-value
a
CRT
(N = 117)
No C RT
(N = 110)
P-value
a
Primary
Ta chyarrhythmia [N
(%)]
Monomorphic
VT (MVT)
148
(59.7)
136
(53.8)
0.44
72 (61.5) 48 (43.6)
0.03
Polymorphic
VT (PVT)
16 (6.5) 20 (7.9) 7 (6.0) 7 (6.4)
Nonsustained
VT
58 (23.4) 63 (24.9) 30 (25.6) 35 (31.8)
Ventricular
Fibrillation
(VF)
26 (10.5) 32 (12.6) 8 (6.8) 18 (16.4)
Other 0 (0.0) 2 (0.8) 0 (0.0) 2 (1.8)
Other Arrhythmias [N
(%)]
Paroxysmal
Atrial
Fibrillation
43 (17.3) 62 (24.5)
0.05
21 (17.9) 29 (26.4)
0.13
Atrial Flutter
10 (4.0) 13 (5.1)
0.55
3 (2.6) 7 (6.4)
0.16
- DRAFT -