User Manual

CardioNet AECG System

Arrhythmia Detection Preferences

The CardioNet System is for use on low risk patients with the following

contraindications:

1) Patients who have a history of sustained ventricular tachycardia or a

documented occurrence of ventricular fibrillation.

2) Patients the attending physician thinks will be at risk for ventricular tachycardia

or ventricular fibrillation as indicated by the following:

- A measured ejection fraction (EF) less than 35% with complex

ventricular ectopic activity (> 10 PVCs per hour or repetitive PVCs).

- Unstable angina defined as chest pain at rest, a new onset of angina,

or a change in existing patterns of angina.

- Patients with a recent (< 3 months) myocardial infarction (MI)

- Patients who are candidates for or have had a recent heart valve surgery.

3) Patients who the attending physician thinks should be hospitalized.

CardioNet’s on board algorithm continually analyzes ECG for potential

arrhythmias on the following list. Any arrhythmia may be omitted from the list on

the prescription by the prescribing physician. The optional item - Pacer spike

detection - will not be routinely detected unless indicated by the physician.

Arrhythmias will be listed on the prescription as follows:

CardioNet Event Threshold Table

Arrhythmia Value

Bradycardia < 40 BPM & sustained > 60 sec

Tachycardia > 150 BPM & sustained > 60 sec

Irregular Rhythm to Detect Irregular HR (IRR > 25) > 60 sec

Atrial Fibrillation / Flutter

PVC’s > 8 occurrences in one minute

Ventricular Bigeminy > 6 occurrences in one minute

Ventricular Trigeminy > 6 occurrences in one minute

Ventricular Tachycardia > 100 BPM & sustained > 4 beats

Ventricular Fibrillation Onset

Pause > 2 seconds

Long Pause > 3 seconds

*Irregular R to R is defined as: Standard deviation x 100 [0.01 sec]

RR mean