Journal article
Lessons from dissociated pulmonary vein potentials: Entry block implies exit block
M Duytschaever, G De Meyer, M Acena, M El-Haddad, Y De Greef, F Van Heuverswyn, Y Vandekerckhove, R Tavernier, G Lee, P Kistler
Europace | OXFORD UNIV PRESS | Published : 2013
Open access
Abstract
Aims Prior reports using pacing manoeuvres, demonstrated an up to 42% prevalence of residual pulmonary vein to left atrium (PV-LA) exit conduction after apparent LA-PV entry block. We aimed to determine in a two-centre study the prevalence of residual PV-LA exit conduction in the presence of unambiguously proven entry block and without pacing manoeuvres.Methods and resultsOf 378 patients, 132 (35%) exhibited spontaneous pulmonary vein (PV) potentials following circumferential PV isolation guided by three-dimensional mapping and a circular mapping catheter. Pulmonary vein automaticity was regarded as unambiguous proof of LA-PV entry block. We determined the prevalence of spontaneous exit cond..
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Funding Acknowledgements
Assoc Professor Kistler's contribution is supported in part by the Victorian Government's Operational Infrastructure Support Program. Associate Professor Kistler is supported by a practitioner fellowship from the Australian National Health and Medical Research Council (NHMRC).