Atrial fibrillation.

Background: Atrial fibrillation (AF) is increasingly common among Australia's ageing population and carries significant morbidity and mortality. Its detection through screening, cardiac device interrogation and/or symptoms of AF brings with it a number of significant clinical issues.

Objective: The aim of this article is to outline a systematic approach to the management of patients with AF, including the initial investigations required, rhythm versus rate control, anticoagulation for stroke prevention, and the interplay between AF and heart failure.

An unusual source of electromagnetic interference.

A 62-year-old male presented to his treating cardiologist for routine interrogation of his implantable cardiac defibrillator on the background of severe ischemic cardiomyopathy and end-stage kidney disease on hemodialysis. The device log revealed multiple paroxysms of atrial fibrillation; however, upon scrutinizing these episodes it was evident that they always corresponded to episodes of hemodialysis while dialyzing through a chronic dialysis catheter, but not while dialyzing via an arteriovenous fistula. We report the novel finding of inappropriate sensing of current leak from the catheter by a lead with a floating atrial dipole.