BeneVision TM80, Operator'S Manual

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BeneVision TM80 Telemetry Monitor Operator’s Manual 7 - 17
7.7 Arrhythmia Monitoring
Arrhythmia monitoring is intended for adult and pediatric patients.
7.7.1 Arrhythmia Safety Information
WARNING
•
Heart rate reading may be affected by cardiac arrhythmias. Do not rely entirely
on heart rate alarms when monitoring patients with arrhythmia. Always keep
these patients under close surveillance.
•
The arrhythmia analysis program is intended to detect ventricular arrhythmias
and atrial fibrillation. It is not designed to detect atrial or supraventricular
arrhythmias. It may incorrectly identify the presence or absence of an
arrhythmia. Therefore, a physician must analyze the arrhythmia information
with other clinical findings.
CAUTION
•
Since the arrhythmia detection algorithm sensitivity and specificity are less
than 100%, sometimes there may be some false arrhythmias detected and also
some true arrhythmia events may not be detected. This is especially true when
the signal is noisy.
•
The ECG size and minimum QRS detection threshold settings affect arrhythmia
detection and heart rate calculation sensitivity.
•
If QRS amplitude is low, the monitor might not be able to calculate heart rate
and false asystole calls may occur.During the learning phase of the algorithm,
arrhythmia detection may not be available. So you should closely monitor
patient condition during and for several minutes after the learning phase to
allow the algorithm to reach optimal detection performance.
7.7.2 Arrhythmia Events
This section lists all arrhythmia events and their criteria.
7.7.2.1 Lethal Arrhythmia Events
Arrhythmia message Description
Asystole No QRS complex detected within the set time interval in the
absence of ventricular fibrillation or chaotic signal.