Long term follow up of radiofrequency catheter ablation of atrial flutter:: clinical course and predictors of atrial fibrillation occurrence
Long term follow up of radiofrequency catheter ablation of atrial flutter:: clinical course and predictors of atrial fibrillation occurrence
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DOI：
10.1136/heart.90.1.59
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发表时间：
2004-01-01
期刊：
影响因子：
5.7
通讯作者：
Pascotto, P
中科院分区：
文献类型：
--
作者：
Bertaglia, E;Zoppo, F;Pascotto, P
目的：评价经峡部消融术治疗的典型心房扑动（AFL）患者的长期随访中心房颤动（AF）的发病时间和预测因素。设计：前瞻性多中心研究。方法和结果：对383例经峡部消融术治疗典型AFL的患者（男性75.4%，平均（SD）年龄61.7（11.1）岁）进行了调查。239例患者（62.4%）消融前存在房颤。367例（95.8%）患者消融成功。在平均（SD） 20.5（12.4）个月的随访期间，41.5%的患者报告房颤。消融后房颤的累积概率随着时间的推移不断增加：6个月为22%，1年为36%，2年为50%，3年为58%，4年为63%。结论：典型AFL经峡部导管消融后发生房颤的患者占很大比例。随访期间房颤的发生呈进行性。消融前房颤，年龄，65岁，左心房大小。50mm与消融后房颤的发生有关。
Objectives: To evaluate the time to onset and the predictors of atrial fibrillation (AF) during long term follow up of patients with typical atrial flutter (AFL) treated with transisthmic ablation.Design: Prospective multicentre study.Methods and results: 383 patients (75.4% men, mean (SD) age 61.7 (11.1) years) who underwent transisthmic ablation for typical AFL were investigated. In 239 patients (62.4%) AF was present before ablation. Ablation proved successful in 367 patients (95.8%). During a mean ( SD) follow up of 20.5 (12.4) months, 41.5% of patients reported AF. The cumulative probability of postablation AF increased continuously as time passed: it was 22% at six months, 36% at one year, 50% at two years, 58% at three years, and 63% at four years.Conclusions: AF occurred in a large proportion of patients after transisthmic catheter ablation of typical AFL. The occurrence of AF was progressive during follow up. Preablation AF, age, 65 years, and left atrial size. 50 mm are associated with postablation AF occurrence.