A Fib, Irregular (Tram) Absence of P-waves and irregular R-R intervals
Accel. Ventric. Run of PVCs with a run length of at least six beats and the rate requirements have not met
V Tach or V Brady
Asystole HR decreased to zero
Bigeminy Every other beat is a PVC (N-V-N-V-N)
Couplet Two consecutive PVCs are detected between normal beats N-V-V-N. The coupling interval
between the PVCs must be less than 600ms
HR High/Tachy, PSM: HR High only The displayed 4/8-beat average ECG heart rate exceeds the user-selected common HR high
limit or ECG HR high limit
HR Low/Brady The displayed 4/8-beat average ECG heart rate falls below the user-selected common HR
low limit or ECG HR low limit
Missing Beat* Actual R-R interval more than 1.8 times the average R-R interval
Multifocal PVCs* Over the last 15 beats two or more premature ventricular beats with dierent morphologies
are detected
Pause Actual R-R interval exceeds 3s (Tram) or a congured value 1-5s
(CARESCAPE Patient Data Module)
CARESCAPE Patient Data Module,
Tram: V Fib/V Tach
ECG waveform indicates a chaotic ventricular rhythm
R on T Isolated PVC is detected within 100 ms of the peak of the T-wave of the patient’s
predominant normal beat
Rapid VT* A run on PVCs is detected with a run length of six beats or more. In addition, an eective
heart rate that exceeds 160 bpm
Single PVC An isolated PVC is detected
Trigeminy Every third beat is a PVC (N-N-V-N-N-V-N)
V Brady Run of PVCs with a run length of at least three beats; additionally, at least two consecutive
R-R intervals in the run must have an eective HR less than the age specic limits (60 or 50)
V Tach A run of PVCs, with run length six beats or more; in addition, an eective HR that exceeds
100 - 160 beats per minute (age-specic limits)
VT > 2 A run of PVCs, with run length more than two beats, but less than six, and less than required
for V Tach; additionally, at least two concecutive R-R intervals must have an eective HR
that exceeds 100-160 beats per minute (age specic limits)
The GE EK-Pro algorithm is used with the CARESCAPE Patient Data Module, CARESCAPE Monitor B850, CARESCAPE Monitor B650,
Tram module, Solar
®
monitors, Dash
®
monitors, ApexPro
®
telemetry, and CARESCAPE Telemetry.
* Missing beat, Multifocal PVC and Rapid VT alarm labels are only available with version 12 of the GE EK-Pro arrhythmia algorithm.
Version 12 is only available with the CARESCAPE Monitor B650 when used with the Patient Side Module (E-PSM). In case of these
alarms CARESCAPE Monitor B650 sends mapped alarms to the CARESCAPE Network. This is due to limitations in the CARESCAPE
Network. Alarms are mapped as follows: Missing beat sent as Pause, Multifocal PVC sent as PVC, Rapid VT sent as V Tach.
For the most current arrhythmia calls, please consult the user manual specic to your current monitor for the details.
Additional resources
For white papers, guides and other instructive materials about our clinical measurements, technologies
and applications, please visit http://clinicalview.gehealthcare.com/
Bedside arrhythmia alarms
In GE monitors there are two arrhythmia analysis modes:
Lethal and Full. The Lethal mode is the standard and Full is an
optional choice. The Lethal mode detects asystole, ventricular
fibrillation/ventricular tachycardia and ventricular tachycardia.
In the neonatal mode bradycardia is also considered a lethal
arrhythmia. The details of arrhythmia alarms criteria are
described in the following table.
EK-Pro_DOC0783131.indd 3 11.11.2010 15.24
(4 paginas)
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