User's Manual

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Monitoring with the TD60 at the CS Arrhythmia Monitoring
TMS60 Operator’s Manual 9 - 29
9.6.2.2 Mortara ECG Algorithm
Arrhythmia message Description Category
Asystole No QRS complex detected within the set time threshold (in absence
of ventricular fibrillation or chaotic signals).
Lethal
arrhythmia
VFib Ventricular fibrillation occurs and persists for 6 seconds.
VTac Ventricular HR is greater or equal to the preset threshold and the
number of consecutive PVCs is greater than the preset threshold.
Extreme Tachy The heart rate is equal to or greater than the extreme tachycardia
limit.
Extreme Brady The heart rate is equal to or less than the extreme bradycardia limit.
PVCs/min PVCs/min exceeds high limit. Nonlethal
arrhythmia
R on T R on T is detected.
Run PVCs More than 2 consecutive PVCs.
Couplet Paired PVCs are detected.
Vent. Rhythm Ventricular HR is less than the preset threshold and the number of
PVCs is greater than or equal to 3.
Bigeminy A dominant rhythm of N, V,N, V, N, V.
Trigeminy A dominant rhythm of N, N, V,N, N, V, N, N, V.
Tachy The HR is greater than the set tachycardia high limit.
Brady The HR is less than the set bradycardia low limit.
Pacer Not Pacing No pace pulse detected for (60×1000/pace rate +90) milliseconds
following a QRS complex or a pacer pulse (for paced patients only).
Pacer Not Capture No QRS complex detected for 300 milliseconds following a pace
pulse (for paced patients only).
Multif. PVC More than 2 PVCs of different forms occur in the predefined search
window (3-31).
Pause No beat detected for 1.75x average R-R interval for HR <120, or
No beat for 1 second with HR >120 (for non-paced patients only), or
No beat detected for more than the set pause threshold.
Irr. Rhythm Consistently irregular rhythm
Pauses/min The number of pauses detected per minute.