Abstract
BackgroundLimited comparative data are available regarding catheter ablation (CA) of atrial fibrillation (AF) using second‐generation cryoballoon (CB‐2) vs radiofrequency (RF) ablation in elderly patients (>75‐year‐old).HypothesisCB‐2 ablation may demonstrate different outcomes compared with that using RF ablation for elderly patients with AF.MethodElderly patients with symptomatic drug‐refractory AF were included in the study. Pulmonary vein isolation was performed in all patients.ResultsA total of 324 elderly patients were included (RF: 176, CB‐2:148) from September 2016 to April 2019. The CB‐2 was associated with shorter procedure time and left atrial dwell time (112.9 ± 11.1 vs 135.1 ± 9.9 minutes, P < .001; 53.7 ± 8.9 vs 65.1.9 ± 9.0 minutes, P < .001), but marked fluoroscopy utilization (22.1 ± 3.3 vs 18.5 ± 3.6 minutes, P < .001). Complications occurred in 3.3% (CB‐2) and 6.2% (RF) of patients with no significant different (P = .307). The length of stay after ablation was shorter, but the costs were higher in the CB‐2 group (1.94 vs 2.53 days, P < .001 and 91 132.6 ± 3723.5 vs 81 149.4 ± 6824.1 CNY, P < .001) compared to the RF group. Additionally, the rate of early recurrence of atrial arrhythmia was lower in the CB‐2 group (14.2 vs 23.3%, P = .047), but the long‐term success rate was similar between two groups.ConclusionsCB‐2 is associated with shorter procedure time, left atrial dwell time, and length of stay after ablation, but its costs and fluoroscopy time are greater than the RF group. Moreover, the rate of complications and long‐term success are similar between the two groups.
Highlights
Atrial fibrillation (AF) is the most common cardiac arrhythmia and affects approximately 10 million individuals in China.[1]
In order to identify the approach with maximal benefits to the elderly patients, the costs and clinical outcomes were compared between CB-2 and RF for elderly patients in China in this study
early recurrence of atrial arrhythmia (ERAA) occurred in 21 patients (14.2%) in the CB2 group and 41 patients (23.3%) in the RF group with significant difference (P = .047)
Summary
Atrial fibrillation (AF) is the most common cardiac arrhythmia and affects approximately 10 million individuals in China.[1]. In order to identify the approach with maximal benefits to the elderly patients, the costs and clinical outcomes were compared between CB-2 and RF for elderly patients in China in this study
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