User's Manual

28 – US-ENGLISH
7. PATIENT SELECTION AND TREATMENT
7.1. INDIVIDUALIZATION OF TREATMENT
Exercise stress testing: If the patient’s condition permits, use
exercise stress testing to:
 Determine the maximum rate of the patient’s normal rhythm,
 Identify any supraventricular tachyarrhythmias,
 Identify exercise-induced tachyarrhythmias.
The maximum exercise rate or the presence of supraventricular
tachyarrhythmias may influence selection of programmable
parameters. Holter monitoring or other extended ECG monitoring
also may be helpful.
CAUTION: To avoid inappropriate therapy during an exercise stress
test, do not reprogram any parameter during the test. When a
parameter is reprogrammed, PARAD/PARAD+ algorithm forces
acceleration to "ventricular". During conducted sinus tachycardia
within the programmed Tachy zone, the device detects a 1:1 fast
rhythm. Assuming that acceleration was set to ventricular by
reprogramming, the device may identify this as a VT, and may
immediately apply the corresponding therapy.
Electrophysiologic (EP) testing: EP testing may be useful for ICD
candidates. EP testing may identify the classifications and rates of all
the ventricular and atrial arrhythmias, whether spontaneous or during
EP testing.