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7.5 Changing ECG Sengs
See Secon 5.3 for details.
7.6 About Arrhythmia Detecon and Template Learning
ARR: ECG arrhythmia analysis
ARR switch: the switch of ECG arrhythmia detecon. The default is OFF.
Extra ARR Learning: indicaon of ARR learning status or acvang ARR learning manually.
When ARR is set to “ON”, the device will start to learn the regular ECG signal automacally for ARR detecon
and icon “ ” will be displayed. The device will nish the learning aer a certain period, and the icon will
become “ ”. The detected arrhythmia waveform will be displayed on the third or the last ECG waveform
display channel; If there is only one ECG waveform display channel, then the detected arrhythmia waveform will
be re-displayed and frozen on this channel for 8 seconds. The arrhythmia waveform will be re-displayed on the
cascaded waveform channel if there is s single Lead of ECG signal displayed with cascaded waveform channels.
Note: Because Arrhythmia detecon needs a template ECG waveform as reference which is a piece of normal ECG
waveform with regular rhythm and stable amplitude, it is necessary to re-acvate the template learning when
the paent is changed, or the Arrhythmia detecon is incorrect. For beer using the Arrhythmia detecon, it is
recommended to wait for a clean and stable ECG waveform before starng ARR detecon during the monitoring.
Note: when the device is restarted, the Arrhythmia detecon is reset to its default status.
☞ During Arrhythmia detecon, incorrect detecon might occur if the non-ECG waveforms (e.g. square or
triangle waveform) appear.
☞ Before starng the 1mV calibraon signal, please turn o the Arrhythmia detecon.
☞ During Arrhythmia detecon, the template learning is very important. The device requires a group of stable
QRS complex waveforms to build up this template. If the system detects Arrhythmia incorrectly, please re-
acvate the template learning and obtain the correct template.
The arrhythmia analysis program is intended to detect ventricular arrhythmias. It is not designed to detect atrial
or supraventricular arrhythmias. It may incorrectly idenfy the presence or absence of an arrhythmia. Therefore,
a physician must analyze the arrhythmia informaon with other clinical ndings.
Take care to iniate template relearning only during periods of normal rhythm and when the ECG signal is relavely
noise-free. If template learning takes place during ventricular rhythm, the ectopics may be incorrectly learned as
the normal QRS complex. This may result in missed detecon of subsequent events of V-Tach and V-Fib.
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