6
-
11
1
Select Yes or No for pacemaker use.
2
When Yes is selected, “Pacemaker Used” will be displayed on the home display.
●
Pacemaker Pulse
The artificial pace pulse can be displayed by superimposing it on the ECG waveform. The artificial
pace pulse will be displayed in yellow.
Pacemaker Pulse Detection Algorithm
①
②
③
①
ECG Signal Input
Inputs ECG signal.
②
Suspension of Pacemaker Pulse and QRS Detection
Signals with high frequency and large amplitude will be
detected as a pacemaker pulse. When a pacemaker
pulse is detected, QRS detection will be suspended for a
certain amount of time to prevent the pacemaker pulse to
be erroneously detected as QRS
.
③
Canceling Arrhythmia Detection
Arrhythmia detection will be cancelled to avoid detecting
the waveform succeeding the pacemaker pulse as an
abnormal beat.
C A U T I O N
Precautions about Pacemaker Pulse Detection
z
There are some cases when the pacemaker pulse can not be detected
depending on the pacemaker type, pulse voltage, pulse width, electrode
lead type (unipolar, bipolar), or electrode placement which causes the
pacemaker pulse amplitude to decrease and disables the pacemaker pulse
detection.
z
If signals similar to a pacemaker pulse are present, such as electric blanket
noise or excessive AC frequency noise, these may be erroneously detected
and displayed as a pacemaker pulse.
z
When a spontaneous QRS and pacemaker pulse overlap (as in a fusion
beat), QRS detection will be suspended and the heart rate will be reduced.
z
If a pacemaker pulse is continuously detected due to AC frequency
interference, QRS detection will be suspended and the heart rate will be
reduced. Also arrhythmia detection will not be possible.
When pacemaker
is used.
6
ECG
Summary of Contents for DynaScope 7000 Series
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