The Medtronic AMD 7250 dual chamber ICD prototype algorithm appropriately detected 97% (37/38) of induced non-1:1 atrial tachyarrhythmia episodes without adverse interactions.
Observational
No
Does the dual chamber atrial tachyarrhythmia detection algorithm in the Medtronic AMD 7250 prototype accurately detect atrial tachyarrhythmias during EP studies?
An external prototype of a dual chamber ICD algorithm accurately detected induced atrial tachyarrhythmias during EP studies without adverse sensing or pacing interactions.
Currently available implantable cardioverter-defibrillators (ICDs) treat ventricular tachyarrhythmias and bradyarrhythmias (VVI), and do not intentionally treat atrial tachyarrhythmias. The Medtronic AMD 7250 dual chamber ICD combines detection and therapy for atrial and ventricular tachyarrhythmias. The dual chamber sensing/pacing circuits and tachyarrhythmia detection algorithms in an external prototype of the AMD 7250 have been studied during human cardiac electrophysiologic (EP) studies and ICD implants at Mayo Clinic. No adverse interactions between sensing, pacing and tachyarrhythmia detection were observed. Atrial tachyarrhythmia detection was appropriate in 12/12 episodes of induced atrial fibrillation, 19/20 episodes of induced atrial flutter and 6/9 episodes of induced atrial tachycardia. Overall detection performance for non-1:1 atrial tachyarrhythmias was 97% (37/38 episodes).
Gillberg et al. (Tue,) conducted a observational in Atrial tachyarrhythmias. Medtronic AMD 7250 dual chamber ICD external prototype was evaluated on Detection performance for non-1:1 atrial tachyarrhythmias. The Medtronic AMD 7250 dual chamber ICD prototype algorithm appropriately detected 97% (37/38) of induced non-1:1 atrial tachyarrhythmia episodes without adverse interactions.