ZOLL AED Pro Rev J - Manual (Page 59)

See-Thru CPR
9650-0350-01 Rev. J ZOLL AED Pro Operator’s Guide 4–5
See-Thru CPR
See-Thru CPR
®
enables the rescuer to see a close approximation of the patient’s underlying
ECG rhythm while performing CPR. See-Thru CPR is an optional feature that must be
configured using the ZOLL Administration Software.
Chest compressions introduce CPR artifact into the ECG signal. See-Thru CPR uses a filter
that relies on the correlation between CPR compressions, as detected by the ZOLL
CPR-D•padz or CPR stat•padz electrodes, and the CPR artifact to remove much, but not all, of
the artifact from the ECG signal. Under some conditions, residual noise after filtering can
obscure the ECG rhythm, requiring the rescuer to stop CPR to assess the ECG. For example, in
the case of asystole or low amplitude PEA, the residual artifact seen after filtering may look
like fine ventricular fibrillation.
Because the filtered ECG signal may contain residual chest compression and/or filtering
artifacts, a rescuer should always follow the standard protocol of stopping CPR to assess the
patient’s ECG rhythm before determining treatment.
Using See-Thru CPR
To use See-Thru CPR:
• The AED Pro unit must be operating in Manual Mode.
• CPR-D•padz or CPR stat•padz electrodes must be attached to the unit.
• The AED Pro unit must be configured to use See-Thru CPR (using the ZOLL
Administration Software).
When a rescue begins, an AED Pro unit that has been configured to use See-Thru CPR
automatically starts filtering the CPR artifact after detecting the first 3 to 6 chest compressions.
The filtered ECG is displayed along with the CPR FLTR message on the top left of the LCD
screen.
See-Thru CPR filtering continues as long as the CPR-D•padz or CPR stat•padz electrodes
detect compressions. When no compressions are detected, filtering stops, unfiltered ECG
signals are displayed, and the unit removes the CPR FLTR message from the LCD screen.
When compressions resume, filtering automatically restarts after 3 to 6 chest compressions.
WARNINGS
• The See-Thru CPR filter works only when the AED Pro defibrillator is operating
in Manual Mode.
• The See-Thru CPR filter does not remove all CPR artifact. Always stop CPR to
verify the patient’s ECG rhythm before making treatment decisions.
• The See-Thru CPR filter does not operate during ECG rhythm analyses. Always
stop chest compressions during ECG rhythm analyses to avoid incorrect results
caused by the presence of CPR artifact.