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Updated: Sep 25, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
Published on: February 28, 2012
Atrial fibrillation storms
A R Mitchell1, P A Spurrell, N Sulke
1Department of Cardiology, Eastbourne General Hospital, King's Drive, Eastbourne, Sussex BN21 2UD, UK.
Abstract:
Evolving pacemaker and device technology now allows the onset pattern of arrhythmias to be identified. It is recognised that some cardiac arrhythmias have a circadian pattern of onset and that ventricular arrhythmias can occur in clusters of electrical storms. The long-term follow-up of patients with an atrial defibrillator suggests that in some patients persistent atrial fibrillation recurrences are not random, but can occur in clusters of 'atrial fibrillation storms'. A case report is used to demonstrate this newly recognised phenomenon.
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