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Empirical Anatomy-Based Ablation vs Emphasize Map-Guided Substrate Ablation in Persistent Atrial Fibrillation : (COMPASS-AF) (COMPASS-AF)

2026年7月21日 更新者:Ju Youn Kim、Samsung Medical Center

This study is aimed to compare the clinical efficacy of two different catheter ablation strategies in patients with persistent atrial fibrillation.

Participants will be randomized 1:1 into either the Anatomy-based group or the Emphasize map-guided group

  • Anatomy-based group : Pulmonary vein isolation (PVI) using pulsed-field ablation (PFA) with a single-shot multielectrode catheter.
  • Emphasize map-guided group : PVI using radiofrequency (RF) ablation followed by additional EnSite X-guided pathologic substrate modification.

Participants will be followed for 1 year to compare the incidence of any atrial tachyarrhythmia and other clinical parameters between the two groups.

研究概览

详细说明

Pulsed-field ablation (PFA) is increasingly being adopted in clinical practice due to its advantages in shortening procedure times and reducing the incidence of complications. While the majority of PFA-related research has focused on PVI-centric strategies, recent studies have reported that posterior wall isolation (PWI) using PFA can also be performed safely. However, sufficient clinical evidence regarding the efficacy of additional ablation strategies beyond PVI in patients with persistent atrial fibrillation (AF) has yet to be established.

The Emphasize mapping system, a software feature within the EnSite X platform, is designed to simultaneously visualize Voltage maps, Peak frequency, and CFAE-related information. Unlike the individual analysis of each parameter, this integrated approach allows for a more precise identification of electrophysiologically significant pathologic substrates by evaluating the complex characteristics of electrical signals holistically. Currently, however, Emphasize-guided ablation is technically limited to the use of radiofrequency (RF) energy.

Persistent AF is characterized by complex and heterogeneous mechanisms, meaning a single, uniform ablation strategy may not yield consistent clinical outcomes across all patients. Consequently, it is hypothesized that an individualized substrate ablation strategy guided by functional mapping may be more effective than a conventional, empirical anatomy-based approach.

Therefore, this study aims to compare the clinical efficacy and safety of an empirical anatomy-based ablation strategy using PFA versus an individualized Emphasize map-guided substrate ablation strategy in patients with persistent AF.

研究类型

介入性

注册 (估计的)

360

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。

学习联系方式

学习地点

    • Seoul
      • Seoul、Seoul、韩国、06351
        • 招聘中
        • Samsung Medical Center
        • 接触:
      • Seoul、Seoul、韩国、06351
        • 尚未招聘
        • Samsung Medical Center
        • 接触:

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

  • 成人
  • 年长者

接受健康志愿者

不

描述

Inclusion Criteria:

  • Adults aged 19 years or older who have voluntarily provided written informed consent to participate in the study
  • Patients diagnosed with persistent atrial fibrillation (AF) who are scheduled to undergo catheter ablation for AF.

Exclusion Criteria:

  • History of prior catheter ablation or MAZE surgery for atrial fibrillation.
  • Left atrial (LA) diameter exceeding 60 mm.
  • Patients with end-stage renal disease (ESRD).
  • History of prior open-heart surgery.
  • Women who are pregnant, lactating, or of childbearing potential.
  • Heart failure corresponding to New York Heart Association (NYHA) functional class IV.
  • Acute coronary syndrome (ACS) experienced within the past 3 months.
  • Patients with terminal illness and a life expectancy of less than one year.
  • Any other condition that the investigator deems inappropriate for participation in the study.

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
有源比较器:Anatomy-based group
In the empirical anatomy-based ablation strategy group, pulmonary vein isolation (PVI) will be performed using pulsed-field ablation (PFA) with a single-shot multielectrode catheter. For each pulmonary vein, approximately 4-10 pulse applications will be delivered depending on the catheter position, with each application consisting of several seconds of pulse delivery. The catheter will be positioned around the PV ostia, and electrical isolation will be achieved by utilizing various catheter configurations as necessary. The energy settings and application methods for PFA in this study will follow the manufacturer's recommended protocols and established methods from prior clinical studies. Additionally, the creation of supplementary lesion sets is permitted at the operator's discretion.
实验性的:Emphasize map-guided group
In the Emphasize map-guided substrate ablation group, ablation will be performed using a contact force-sensing irrigated radiofrequency (RF) catheter. Following pulmonary vein isolation (PVI), an Emphasize map will be acquired during atrial fibrillation (AF) using the EnSite X mapping system. Based on this map, electrophysiologically significant pathologic substrates will be evaluated, and additional substrate ablation will be performed. Subsequently, electrical cardioversion will be conducted to restore sinus rhythm. If sinus rhythm is not maintained or if AF is re-induced, an additional Emphasize map may be acquired in the right atrium (RA), and RA substrate ablation can be performed if necessary.

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
Recurrence of atrial tachyarrhythmia
大体时间:From 3 months to 12 months after the index procedure

Any documented atrial tachyarrhythmias excluding the initial 3-month blanking period. Documented atrial tachyarrhythmias (atrial fibrillation, atrial flutter, atrial tachycardia) were defined as follows:

  • Atrial tachyarrhythmias documented in 12 lead ECG
  • Atrial tachyarrhythmias of more than 30 seconds in Holter monitoring Recorded as a binary outcome (presence or absence of recurrence)
From 3 months to 12 months after the index procedure

次要结果测量

结果测量
措施说明
大体时间
Atrial fibrillation burden
大体时间:From 3 months to 12 months after the index procedure
The proportion of time spent in atrial fibrillation or atrial flutter during rhythm monitoring .The burden will be assessed as percent(%) using Holter monitoring.
From 3 months to 12 months after the index procedure
Repeat ablation
大体时间:From index procedure to 12 months
Any additional catheter ablation procedure performed after the index procedure for documented recurrent atrial tachyarrhythmia during the follow-up period.
From index procedure to 12 months
Use of antiarrhythmic drug therapy
大体时间:From 3 months to 12 months after the index procedure
Percentage of patients prescribed any Class I or Class III antiarrhythmic Temporary use during the blanking period (first 3 months) will not be counted.
From 3 months to 12 months after the index procedure
Atrial Fibrillation Effect on Quality-of-life (AFEQT) questionnaire score
大体时间:From index procedure to 12 months
The AFEQT is outcome instrument designed to measure the impact of AF on a patient's health-related quality of life. Scores range from 0 to 100, with higher scores indicating a better health-related quality of life
From index procedure to 12 months
Stroke
大体时间:From index procedure to 12 months
Proportion of participants experiencing a new focal or global neurological deficit lasting ≥24 hours with imaging evidence of ischemic or hemorrhagic stroke. Transient ischemic attack will not be included.
From index procedure to 12 months
Cardiovascular hospitalization
大体时间:From index procedure to 12 months

Proportion of participants experiencing hospitalization primarily due to a cardiovascular cause, including:

  • Atrial tachyarrhythmia recurrence
  • Heart failure exacerbation
  • Acute coronary syndrome
  • Cardiovascular procedural complications
From index procedure to 12 months
Bleeding event
大体时间:From index procedure to 12 months

Proportion of participants experiencing bleeding events.

Bleeding event will be classified according to the International Society on Thrombosis and Haemostasis(ISTH) criteria:

  • Major bleeding
  • Clinically relevant non-major bleeding
From index procedure to 12 months
All-cause mortality
大体时间:From index procedure to 12 months
Death due to any cause occurring during the follow-up period.
From index procedure to 12 months
Procedure-related complications
大体时间:From index procedure to 30days

Proportion of participants experiencing any complication occurring during or within 30 days after the index procedure, including:

  • Cardiac tamponade
  • Vascular access complication
  • Pulmonary vein stenosis
  • Esophageal injury
  • Phrenic nerve injury
  • Major bleeding.
From index procedure to 30days
Procedure time
大体时间:at the index procedure
Total procedure time measured in minutes from vascular access puncture to removal of all catheters at the end of the procedure.
at the index procedure
Radiation time
大体时间:at the index procedure
Total fluoroscopy exposure time measured in minutes.
at the index procedure
Left atrial reservoir strain
大体时间:From index procedure to 12 months
Measured as percentage by echocardiography
From index procedure to 12 months

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。

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

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)

2026年5月19日

初级完成 (估计的)

2030年12月31日

研究完成 (估计的)

2030年12月31日

研究注册日期

首次提交

2026年7月21日

首先提交符合 QC 标准的

2026年7月21日

首次发布 (实际的)

2026年7月24日

研究记录更新

最后更新发布 (实际的)

2026年7月24日

上次提交的符合 QC 标准的更新

2026年7月21日

最后验证

2026年4月1日

更多信息

与本研究相关的术语

关键字

其他研究编号

  • SMC 2026-02-103
  • KCT0011829 (其他标识符:Korea National Institute of Health)

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

未定

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

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