Journal article
Pulmonary vein isolation: The impact of pulmonary venous anatomy on long-term outcome of catheter ablation for paroxysmal atrial fibrillation
AJA McLellan, LH Ling, D Ruggiero, MCG Wong, TE Walters, A Nisbet, AK Shetty, S Azzopardi, AJ Taylor, JB Morton, JM Kalman, PM Kistler
Heart Rhythm | ELSEVIER SCIENCE INC | Published : 2014
Abstract
Background: Circumferential pulmonary vein (PV) isolation is the cornerstone of catheter ablation for atrial fibrillation (AF); however, PV reconnection remains problematic. Objective: To assess the impact of PV anatomy on outcome after AF ablation. Methods: One hundred two patients with paroxysmal AF underwent cardiac magnetic resonance (60%) or computed tomography (40%) before AF ablation. PV anatomy was classified according to the presence of common PVs, accessory PVs, PV branching pattern, and the dimensions of the PV ostia, intervenous ridges (IVRs), and the left PV-left atrial appendage ridge. Results: Four discrete PVs were present in 48(47%) of the patients: a left common PV in 38(37..
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Awarded by State Government of Victoria
Funding Acknowledgements
This research was supported in part by the Victorian Government's Operational Infrastructure Funding. Dr McLellan is supported by a co-funded Australian National Health and Medical Research Council (NHMRC)/Australian National Heart Foundation (NHF) Postgraduate Scholarship. Dr Ling is supported by an NHF Postgraduate Scholarship. Dr Wong is the recipient of the Keith Goldsbury Postgraduate Research Scholarship Award (award no. PC11M 6218) from the National Heart Foundation of Australia. Dr Walters is supported by an NHMRC Postgraduate Research Scholarship. Dr Taylor is supported by an NHMRC project grant. Dr Kistler is supported by a practitioner fellowship from the NHMRC.