Infinity M300/M300+ Features for VG2.4
12 Supplement – Infinity M300 and M300+ Series – VG2.4
M300/M300+ 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 alarm conditions may occur simultaneously. Announcing
all the alarm conditions would cause alarm fatigue and prevent the clinician from addressing the most
serious condition. For this reason, the arrhythmia conditions are prioritized and only the highest priority
alarm event shall annunciate. The priority order of the arrhythmia events is based on the default priority
defined in the algorithm and the alarm grade configured by the user.
Based on this detection process, arrhythmias and other associated events are reported in the following
order of severity:
1 ASY (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)
11 Pause (sinus pause)
12 ARR artifact
In addition to storage as events, the two high priority alarms, ASY and VF, are also stored and displayed
in the trends of the ICS.
An arrhythmia with a high grade alarm configuration has a higher priority than an arrhythmia with a
medium, low or disabled alarm grade configuration. An arrhythmia with a medium grade alarm
configuration 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 disabled
alarm configuration.
The priority for arrhythmia events configured with the same alarm grade follows the arrhythmia hierarchy
list. When arrhythmia artifact is present (ARTF) at 100% artifact level, no arrhythmia events are
recognized 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.
To Next Page
Loading...
