Cardiac Science Powerheart G5, Руководство пользователя

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70-00569-02 G Powerheart® G5 Automated External Defibrillator
C-2
ECG Analysis Algorithm and Rescue Waveform
RHYTHMx® AED ECG analysis algorithm
The RHYTHMx AED ECG analysis algorithm provides extensive ECG detection capabilities.
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All ventricular fibrillations (VF) are classified as shockable.
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Asystole is separated primarily by amplitude. ECG rhythms of low amplitude are classified as
asystole and are not shockable.
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The AED detects noise artefacts in the ECG form generated from, for example, movement of
the patient, adjustment of the defibrillation pads, or electronic noise from external sources.
The analysis is delayed or aborted in these cases.
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The AED can detect or reject pulses from an implanted pacemaker.
In addition, RHYTHMx optionally shocks selected VT and SVT rhythms. Settings for several
detection features can be adjusted through the AED Manager software:
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Detection rate: All ventricular tachycardia (VT) rhythms at or above this rate are classified as
shockable. All rhythms below this rate are classified as non-shockable.
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Non-committed shock: If the patient’s rhythm changes to a non-shockable rhythm before the
actual shock is delivered, the AED cancels the shock.
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Synchronised shock: The AED automatically attempts to synchronise shock delivery on the R-wave
if one is present. If delivery cannot be synchronised within one second, a non-synchronised shock
is delivered.
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SVTdiscriminator: The AED is configurable to shock SVT waveforms that are above
a threshold rate that can be pre-set, or can be disabled (default setting).
Rescue protocol
The AED rescue protocol is consistent with the guidelines recommended by the AHA/ERC 2010
Guidelines for Resuscitation and Emergency Cardiac Care.
Note: For consistency with the AHA/ERC guidelines, the CPR time can be set to allow for 5 cycles of
30 compressions and 2 breaths.
Use the AED Manager to change the protocol. For details, see the AED Manager User’s Guide .