Value of high-resolution mapping in optimizing cryoballoon ablation of atrial fibrillation.
作者： Giulio Conte , Kyoko Soejima , Carlo de Asmundis , Gian-Battista Chierchia , Matteo Badini
DOI: 10.1016/J.IJCARD.2018.05.135
关键词: Lesion 、 Cryoballoon ablation 、 Catheter 、 Internal medicine 、 Pulmonary vein 、 Atrial fibrillation 、 High resolution 、 Ablation 、 Cardiology 、 Paroxysmal AF 、 Medicine
摘要: Abstract Background Unrecognized incomplete pulmonary vein isolation (PVI), as opposed to post-PVI reconnection, may be responsible for clinical recurrences of atrial fibrillation (AF). To date, no data are available on the use high-resolution mapping (HRM) during cryoballoon (CB) ablation AF index procedure. The aims this study were: - assess value using a HRM system CB procedures in terms ability acutely detecting lesions; compare 8-pole circular catheter (CMC, Achieve) and 64-pole mini-basket (Orion) with respect (PV) signals detection at baseline after ablation; characterize extension lesion produced by means high-density voltage mapping. Methods Consecutive patients drug-resistant paroxysmal or early-persistent undergoing procedure, assisted system, were retrospectively included study. Results A total 33 (25 males; mean age: 59 ± 18 years, 28 AF) included. At baseline, CMC revealed PV activity 102 PVs (77%), while Orion documented all veins (100%). Failure complete CB-PVI was more frequently re-mapping compared Achieve (24% vs 0%, p 0.5 mV. 29 (88%) remained free symptomatic follow-up 13.2 ± 3.7 months. Conclusion Atrial improves areas ablation, characterizes cryo-ablated tissue can identify abolishment potential non-PVI related sources AF.
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