Europace Advance Access published online on July 11, 2008
Europace, doi:10.1093/europace/eun180
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SHORT COMMUNICATION
Reduction of complex ventricular ectopy and improvement in exercise capacity with flecainide therapy in Andersen–Tawil syndrome
Division of Cardiology, Department of Medicine, University of Western Ontario, London, Ontario, Canada
Andersen–Tawil syndrome (ATS) is a rare inherited autosomal disorder characterized by the clinical triad of ventricular arrhythmias, hypokalaemic periodic paralyses, and skeletal developmental abnormalities, resulting in dysmorphic features. Although ATS patients have a high incidence of ventricular arrhythmias, the occurrence of sudden cardiac death is rare. In this report, we describe the successful use of flecainide in an ATS patient with a considerable ventricular arrhythmia burden who had not demonstrated any response to conventional β-blocker therapy used in conjunction with potassium (K+) supplementation.
Key Words: Flecainide, Exercise, Repolarization, Ectopy
* Corresponding authors. London Health Sciences Centre, University Campus, 339 Windermere Road, Room 3HE-6, London, Ontario, Canada N6A 5A5. Tel: +1 519 663 3746; fax: +1 519 663 3786 (A.D.K.), Tel/fax: +1 519 685 8500 (D.J.F.). E-mail address: akrahn{at}uwo.ca (A.D.K.) or david.j.fox{at}talk21.com (D.J.F.)
Manuscript submitted 25 May 2008. Accepted after revision 10 June 2008.