ZOLL AED Pro Rev J - Manual (Page 60)

C HAPTER 4 M ANUAL M ODE
4–6 www.zoll.com 9650-0350-01 Rev. J
Examples
The following examples show the effects of See-Thru CPR filtering on ECG signals
contaminated with CPR artifact.
Each example includes:
• ECG signal with CPR artifact.
• ECG signal after the See-Thru-CPR filter has removed CPR artifact.
• Indication of the period during which See-Thru CPR is active.
• CPR signal to show when CPR activity occurred.
Figure 1 shows a patient in Fine VF. It is difficult for a rescuer to discern this rhythm during
CPR compressions. When the CPR filter turns on, the Fine VF rhythm becomes more obvious.
Figure 1.
FineVF
0:00 0:12
Raw ECG Raw ECG
Filtered ECG Filtered ECG
CPR CPR
| Filter ON
•
FineVF
0:12 0:24
Raw ECG Raw ECG
Filtered ECG Filtered ECG
CPR CPR
| Filter OFF
•
| Filter ON
•
FineVF
0:24 0:36
Raw ECG Raw ECG
Filtered ECG Filtered ECG
CPR CPR
| Filter OFF
•
12.5 mm/sec, 5 mm/mV