Point‐by‐Point Radiofrequency Ablation Versus the Cryoballoon or a Novel Combined Approach: A Randomized Trial Comparing 3 Methods of Pulmonary Vein Isolation for Paroxysmal Atrial Fibrillation (The Cryo Versus RF Trial)
作者： ROSS J. HUNTER , VICTORIA BAKER , MALCOLM C. FINLAY , EDWARD R. DUNCAN , MATTHEW J. LOVELL
DOI: 10.1111/JCE.12846
关键词: Catheter ablation 、 Atrial fibrillation 、 Internal medicine 、 Randomized controlled trial 、 Ablation 、 Radiofrequency ablation 、 Vein 、 Combined approach 、 Pulmonary vein 、 Cardiology 、 Medicine
摘要: The CRYO Versus RF TrialIntroduction Catheter ablation of paroxysmal AF using the Cryoballoon (CRYO) has yielded similar success rates to conventional wide encirclement radiofrequency catheter (RFCA), but randomized data are lacking. Pilot suggested a high rate with combined approach (COMBINED) RFCA followed by 2 applications each vein. We compared these 3 strategies in controlled trial. Methods and Results Patients undergoing first time were RFCA, CRYO, or COMBINED. Patients up at 3, 6, 12 months 7 days ambulatory ECG monitoring. Success was defined as freedom from arrhythmia without antiarrhythmic drugs after single procedure. A total 237 patients randomized. 1 year achieved 47% group, 67% 76% COMBINED group (P < 0.001 for vs. P<0.001 COMBINED, P = 0.220 COMBINED). Procedure 211 (IQR 174–256) minutes 167 (136–202) 278 (243–327) groups). Conclusions Pulmonary vein isolation is faster results higher procedure than point RFCA. not superior alone.
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