Randomized Trial of Segmental Versus Circumferential Antral Ablation in Paroxysmal Atrial Fibrillation (CABLE)
2017年8月25日 更新者：Lawson Health Research Institute
An isolation-limited segmental antral approach to pulmonary vein isolation is as effective in achieving long-term freedom from atrial fibrillation as the standard anatomic, circumferential antral ablation.
研究概览
详细说明
This is a randomized controlled non-inferiority designed trial.
Follow up:
Patients will stop their anti-arrhythmic drugs 2 months post procedure. Follow-ups will involve clinical assessment, holter and/or loop recorders at 3, 6, 9, and 12 month intervals.
研究类型
介入性
注册 (实际的)
120
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
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Ontario
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London、Ontario、加拿大、N6A 5A5
- London Health Science Centre
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
Inclusion Criteria:
- Paroxysmal Atrial Fibrillation (PAF) for at least 6 months with at least 1 symptomatic episode during the previous 6 moths
- Patient must be felt to be candidates for Atrial Fibrillation (AF) ablation based on AF that is symptomatic and refractory or intolerant to at least one class 1 or 3 anti-arrhythmic agent
- Documentation of at least one episode of AF on 12 lead ECG, TTM or Holter monitor within 12 months of randomization in the trial
- Patient must be on continuous anti-coagulation with warfarin (INR 2-3) or fractionated subcutaneous heparin for >4 weeks prior to the ablation or they have undergone a recent (less than 48 hours before planned ablation) transoesphageal echocardiogram to exclude left atrial thrombus.
- Patient must provide written informed consent to participate in the clinical trial
Exclusion Criteria:
- Contraindications to oral anticoagulants
- History of any previous ablation for AF
- Intracardiac thrombus
- AF due to reversible causes
- Pregnancy
- atriotomy scar (typically, MV or TV repair/replacement, ASD surgery, transplants)(CABG are okay)
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：随机化
- 介入模型：并行分配
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
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有源比较器：Circumferential
Completing a complete circle of RF lesions around the left and right pulmonary veins
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The goal is to complete ablation in all segments around the pulmonary veins until a circle of ablation lesions is created in the antrum with at least 30 seconds of ablation, 25W on the posterior surface, 30W on the anterior surface at each site, and change in the local electrogram.
Entry and Exit block will be confirmed in each vein.
The left superior pulmonary vein and left inferior pulmonary vein will be isolated with one circle, and the right superior and right inferior pulmonary veins will be isolated with one circle.
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实验性的：Segmental
Isolating the left and right pulmonary veins through RF lesions with a segmental antral approach.
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If the patient is in atrial fibrillation, ablation will begin in the segment with the highest frequency signals in the pulmonary vein antrum.
If the patient is in sinus rhythm, mapping and ablation will occur during coronary sinus pacing.
Segments with the earliest signals in the Lasso catheter will be targeted, and reassessed after each ablation lesion.
This will continue in a segmental fashion on the antrum until pulmonary vein isolation is achieved.
Lasso should be moved between veins between lesions to assess the earliest electrogram.
Entry and exit block will be confirmed at each vein.
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研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
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Freedom from atrial fibrillation
大体时间：six months
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Symptomatic atrial fibrillation recurrence (without anti-arrhythmic med's)
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six months
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Procedure time
大体时间：(4-6) hours From the time patient is draped to the time electrophysiology catheters are removed from the body (same day in the electrophysiology lab)
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How long did the procedure take?
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(4-6) hours From the time patient is draped to the time electrophysiology catheters are removed from the body (same day in the electrophysiology lab)
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Ablation Time
大体时间：(4-6 hours) Measured during the procedure.
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A cumulative measurement of the duration of ablation used during the pulmonary vein isolation procedure.
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(4-6 hours) Measured during the procedure.
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Fluoroscopy Time
大体时间：(4-6 Hours) Measured during the procedure.
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A cumulative measurement of flouroscopy time during the pulmonary vein isolation procedure.
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(4-6 Hours) Measured during the procedure.
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complications
大体时间：6 months
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Did the patient experience any complication during the actual pulmonary vein isolation procedure or complication during follow-up related to the procedure?
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6 months
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Lorne J Gula, MD、Western University, Canada
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2009年11月12日
初级完成 (实际的)
2015年12月31日
研究完成 (实际的)
2015年12月31日
研究注册日期
首次提交
2010年6月8日
首先提交符合 QC 标准的
2010年12月13日
首次发布 (估计)
2010年12月15日
研究记录更新
最后更新发布 (实际的)
2017年8月28日
上次提交的符合 QC 标准的更新
2017年8月25日
最后验证
2017年8月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.
Circumferential Antral Ablation的临床试验
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CSA Medical, Inc.终止