Europace Advance Access originally published online on July 10, 2009
Europace 2009 11(10):1392-1395; doi:10.1093/europace/eup190
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SHORT COMMUNICATIONS
A broad complex tachycardia with conflicting information from pacing manoeuvres
Cardiology Research Department, Barts and The London NHS Trust and QMUL, St Bartholomew's Hospital, First Floor Dominion House, 60 Bartholomew Close, West Smithfield, London EC1A 7BE, UK
A patient with a biventricular implantable cardioverter defibrillator for heart failure had a recurrent broad complex tachycardia and underwent electrophysiologic testing. The tachycardia was induced only with ventricular pacing. There was a 1:1 atrioventricular relationship with simultaneous atrial and ventricular activation. However, atrial pacing during tachycardia suggested atrial dissociation from the circuit. The findings, potential mechanisms, and treatment are discussed.
* Corresponding author. Tel: +44 207 601 8639, Fax: +44 207 601 8627, Email: ross.hunter{at}bartsandthelondon.nhs.uk
Manuscript submitted 31 March 2009. Accepted after revision 18 June 2009.