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ECG, arrhythmia, and ST segment
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Instructions for use – Infinity Acute Care System – Monitoring Applications VG6.n
When the
ASY/VF alarms
setting is set to
Always
on
, asystoles and ventricular fibrillation events are
always reported, even when arrhythmia monitoring
is deactivated.
The following table lists
Basic
and
Advanced
arrhythmia events that are reported with each
monitoring mode. The table also lists detected
events when the Arrhythmia mode is
Off.
NOTE
The
Advanced
arrhythmia mode is only available
when the full arrhythmia option is activated.
Arrhythmia monitoring off
(the following events are detected, if at least one ECG is displayed)
ASY
Asystole
4 seconds pass without the detection of a valid QRS complex.
VF
Ventricular fibrillation
Sinusoidal waveform with fibrillation characteristics.
1)
Basic arrhythmia monitoring mode
(the following additional events are detected)
VTACH
Ventricular
Tachycardia
N or more PVCs are detected in a interval T = (60 * (N – 1)) / R,
where N is the VTACH count and R is the VTACH rate.
2), 4)
PVC
Premature Ventricular
Contraction
PVC alarm limit exceeded. The PVC parameter value represents
the number of QRS complexes classified as PVCs over a 1-minute
interval.
ARTF
Artifact
More than 50% of beats in the last minute were classified as
questionable.
Advanced arrhythmia monitoring mode
(includes
Basic
mode events plus the following additional
events)
RUN
Ventricular RUN
Series of 3 to N-1 consecutive PVCs with a beat-to-beat rate
≥
the
VTACH rate.
2)
AIVR
Accelerated
Idioventricular
Rhythm
Series of 3 or more PVCs with a rate less than the VTACH rate.
SVT
Supraventricular
Tachycardia
N or more consecutive normal beats, with a beat-to-beat rate
greater than or equal to the SVT setting.
2)
CPT
Ventricular Couplet
Sequence of beats with the pattern: normal, PVC, PVC, normal.
BGM
Ventricular Bigeminy
Sequence of beats with the pattern: normal, PVC, normal, PVC,
normal.
TACH
Tachycardia
N or more consecutive normal beats, with a beat-to-beat rate
≥
TACH rate setting.
2), 4)
BRADY
Bradycardia
Eight or more consecutive normal beats, with an average rate
≤
bradycardia rate setting.
3)
PAUSE
Pause
Sequence of two beats classified as normal or PVC, with an
interval
≥
pause rate value in seconds (±100 ms).