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42 Stratos LV/LV-T Technical Manual
Table 9: Patient Demographics
Characteristic Results
Age at Implant (Years) n=88
Mean ± SD 68 ± 10
Range 34 to 84
Gender n=89
Male 66 (74%)
Female 23 (26%)
QRS-width (ms) n=70
Mean ± SD 160 ± 23
Range 110 to 210
Etiology of Heart Failure n=87
Ischemic 32 (37%)
Non-Ischemic 55 (63%)
New York Heart Association (NYHA)
Classification
n=87
Class III 73 (84%)
Class IV 14 (16%)
Atrial Tachyarrhythmias N=87
None 48 (55%)
Atrial flutter 5 (5.7%)
Paroxysmal atrial fibrillation 19 (22%)
Persistent atrial fibrillation
10
(11.5%)
Other 5 (5.7%)
Ventricular Tachyarrhythmias N=87
None 80 (92%)
Ventricular fibrillation -
Sustained or non-sustained VT 5 (5.7%)
1)
Other VT 2 (2.3%)
2)
Existing/chronic leads prior to Corox
OTW/Steroid
n=88
None 73 (83%)
Yes, due to previous pacemaker therapy 15 (17%)
1)
non-sustained VT (n=4); no further information available (n=1);
2)
VES (n=2)