Conclusion - Philips HEARTSTART XLT M3500B Instructions For Use Manual

Table 13-3 Clinical Summary - Defibrillation
Defibrillation Efficacy
Single shock only
<2 shocks
<3 shocks
Patients Defibrillated
Return of Spontaneous
Circulation
Survival to Hospital
Admission
Survival to Hospital Dis-
charge
CPC = 1 (Good)
M3500B HeartStart XLT Defibrillator/Monitor
Biphasic Patients
Number/(Percent)
52/54 (96%)
52/54 (96%)
53/54 (98%)
54/54 (100%)
41/54 (76%)
33/54 (61%)
15/54 (28%)
13/15 (87%)

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).
Clinical Performance Summary - Defibrillation
Monophasic Patients
Number/(Percent)
36/61 (59%)
39/61 (64%)
42/61 (69%)
49/58 (84%)
33/61 (54%)
31/61 (51%)
19/61 (31%)
10/19 (53%)
P Value
(chi-square)
<0.0001
<0.0001
<0.0001
0.003
0.01
0.27
13
0.69
0.04
13-15