Philips HEARTSTART XLT M3500B Manual De Usuario
Clinical Performance Summary - Defibrillation
13-15
13
Conclusion
The 150J SMART Biphasic waveform defibrillated at higher rates than 200-
360J monophasic waveforms, resulting in more patients achieving return of
spontaneous circulation (ROSC) (p=0.01). EMS system outcomes of survival
discharge were not significantly different statistically. However, patients
resuscitated with the lower energy SMART Biphasic waveform were more
likely to have good cerebral performance (CPC, cerebral performance cate-
gory) (p=0.04).
360J monophasic waveforms, resulting in more patients achieving return of
spontaneous circulation (ROSC) (p=0.01). EMS system outcomes of survival
discharge were not significantly different statistically. However, patients
resuscitated with the lower energy SMART Biphasic waveform were more
likely to have good cerebral performance (CPC, cerebral performance cate-
gory) (p=0.04).
Table 13-3 Clinical Summary - Defibrillation
Biphasic Patients
Number/(Percent)
Monophasic Patients
Number/(Percent)
P Value
(chi-square)
Defibrillation Efficacy
Single shock only
<2 shocks
<3 shocks
<2 shocks
<3 shocks
52/54 (96%)
52/54 (96%)
53/54 (98%)
52/54 (96%)
53/54 (98%)
36/61 (59%)
39/61 (64%)
42/61 (69%)
39/61 (64%)
42/61 (69%)
<0.0001
<0.0001
<0.0001
<0.0001
<0.0001
Patients Defibrillated
54/54 (100%)
49/58 (84%)
0.003
Return of Spontaneous
Circulation
Circulation
41/54 (76%)
33/61 (54%)
0.01
Survival to Hospital
Admission
Admission
33/54 (61%)
31/61 (51%)
0.27
Survival to Hospital Dis-
charge
charge
15/54 (28%)
19/61 (31%)
0.69
CPC = 1 (Good)
13/15 (87%)
10/19 (53%)
0.04