Arrhythmia Processing; Arrhythmia Modes - Dräger Infinity M540 Instructions For Use Manual

Arrhythmia processing

Arrhythmias are identified using an internal
detection process. This process does the following:
– Filters out ECG signal artifacts
– Detects the beat pattern
– Classifies the beat pattern
– Detects the rhythm
When arrhythmia analysis is enabled, multiple ar-
rhythmia alarm conditions may occur simultane-
ously. Announcing all the alarm conditions could re-
sult in alarm fatigue and prevent the clinician from
addressing the most serious condition. For this rea-
son, priorities are set for the arrhythmia conditions
so that only the highest priority alarm event annun-
ciates. Although the priority of arrhythmia events
cannot be modified, the clinician can modify the
alarm grade to allow enabled alarms of lower prior-
ity to annunciate.
The priority for arrhythmia events is:
1 Asystole
2 VF (Ventricular fibrillation)
3 VTACH (ventricular tachycardia)
4 RUN (ventricular run)
5 AIVR (accelerated idioventricular rhythm)
6 SVT (supraventricular tachycardia)
7 CPT (ventricular couplet)
8 BGM (bigeminy)
9 TACH (tachycardia)
10 Brady (Bradycardia)

Arrhythmia modes

If arrhythmia monitoring is activated, the selected
arrhythmia mode determines how many events are
monitored. Arrhythmia modes include Basic,
Instructions for use – Infinity Acute Care System – Monitoring Applications VG6.n
ECG, arrhythmia, and ST segment
11 Pause (user selectable interval)
12 ARTF (artifact, background rhythm)
For a description of the arrhythmias and associated
events, see Arrhythmia modes.
NOTE
Except for asystole and ventricular fibrillation
events, no other arrhythmia events appear in the
trends of any ICS equipped with software version
VG1.
An arrhythmia with a high grade alarm configura-
tion has a higher priority than an arrhythmia with a
medium, low or disabled alarm grade configuration.
An arrhythmia with a medium grade alarm configu-
ration has a higher priority than an arrhythmia with
a low or disabled alarm grade configuration.
An arrhythmia with a low grade alarm configuration
has a higher priority than an arrhythmia with a dis-
abled alarm configuration.
The priority for arrhythmia events configured with
the same alarm grade follows the arrhythmia hier-
archy list.
When arrhythmia artifact is present (ARTF) at
100% artifact level, no arrhythmia events are rec-
ognized except for bradycardia and ventricular
fibrillation.
If sinus tachycardia and ventricular tachycardia are
configured at the same alarm grade, a ventricular
tachycardia will take priority if the rate is high
enough and the beats are classified as ventricular
beats.
Advanced, and Off.
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