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Case Reports
. 2018 Nov;41(11):1552-1554.
doi: 10.1111/pace.13513. Epub 2018 Oct 17.

AV hysteresis causing initiation of recurrent atrial arrhythmias

Christopher Monkhouse  1 , Terry Dillon  1 , Anthony W C Chow  1 , Jonathan M Behar  1
Affiliations
Case Reports

AV hysteresis causing initiation of recurrent atrial arrhythmias

Christopher Monkhouse et al. Pacing Clin Electrophysiol. 2018 Nov.

Abstract

A 73-year-old male with dual-chamber implantable cardioverter defibrillator (Teligen, Boston Scientific, Marlborough, MA, USA) had multiple episodes of automatic mode switch (AMS) during clinical follow-up. Over 50% of these demonstrated a similar pattern of initiation. AV Search+ in combination with sensor rate pacing can cause short-coupled atrial paced intervals that can be proarrhythmic. After programming changes were made AMS burden has significantly decreased.

Keywords: ICD; MVP; atrial fibrillation; atrial flutter; atrial tachycardia; proarrhythmia.

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