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临床试验/NCT04473963
NCT04473963已完成不适用

A Randomized Controlled Study to Evaluate the Reliability of Electrographic Flow™ (EGF) Mapping Algorithm Technology to Identify Sources of Atrial Fibrillation and Guide Ablation Therapy in Patients With Persistent Atrial Fibrillation

Cortex8 个研究点 分布在 3 个国家目标入组 85 人开始时间: 2019年9月27日最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
发起方
Cortex
入组人数
85
试验地点
8
主要终点
Number of Participants With Acute Procedure Success

研究概览

简要总结

This study is to evaluate Electrographic Flow™ (EGF) mapping algorithm technology (Ablamap® Software).

详细描述

The objective of this study is to evaluate the reliability of Electrographic Flow™ (EGF) mapping algorithm technology (Ablamap® Software) to identify sources of atrial fibrillation and guide ablation therapy in patients with persistent atrial fibrillation.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 100 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Suitable candidate for intra-cardiac mapping and ablation of atrial arrhythmias.
  • Above eighteen (18) years of age or of legal age to give informed consent specific to state and national law.
  • Subjects with a history of documented symptomatic, persistent or longstanding persistent atrial fibrillation < 36 months.
  • Subject agrees to comply with study procedures and be available (geographically stable) for follow-up visits for at least 12 months.
  • Treatment of atrial fibrillation with ablation therapy presenting with recurrent symptoms of atrial fibrillation (not applicable to De Novo subjects)

排除标准

  • Left atrial diameter > 5.5 cm.
  • Left ventricular ejection fraction (LVEF) < 35%.
  • Presence of intramural thrombus, tumor or abnormality that precludes vascular access, catheter introduction or manipulation.
  • Coagulopathy, bleeding diathesis or suspected procoagulant state.
  • Known allergies or intolerance to anticoagulant and antiplatelet therapies to be used in conjunction with the study or contrast sensitivity that cannot be adequately pre-treated prior to the ablation procedure.
  • Positive pregnancy test results for female patients of childbearing potential or breast feeding.
  • Acute or chronic medical condition that in the judgment of the investigator would increase risk to the patient or deem the patient inappropriate to participate in the study.
  • Mitral valve stenosis and/or severe mitral regurgitation.
  • Valvular atrial fibrillation.
  • Prosthetic valves.
  • New York Heart Association (NYHA) Class IV.
  • History of myocardial infarction (MI) within 3 months prior to procedure.
  • Atrial septal defect (ASD) or left atrial appendage (LAA) closure device.
  • Atrial fibrillation from a reversible cause (e.g., surgery, hyperthyroidism, sarcoidosis or pericarditis).
  • Life expectancy < 12 months based on medical history or the medical judgement of the investigator.
  • Presence of any transvenous pacing, Implantable cardioverter defibrillators (ICD), cardiac resynchronization therapy (CRT) leads.

结局指标

主要结局

Number of Participants With Acute Procedure Success

时间窗: During the Procedure

Acute Procedure Success is defined as successful elimination of significant sources of electrographic flow (EGF) through targeted radiofrequency ablation. EGF-identified sources are significant when their leading source activity is above threshold. Successful elimination is defined as reduction of the source activity of the leading source below threshold upon post-ablation remapping using EGF mapping.

Number of Participants With Serious Adverse Events Related to the Procedure Through 7 Days

时间窗: 7 days

Freedom from Serious Adverse Events (SAE) related to the procedure through 7 days following the index procedure.

次要结局

  • Number of Electrographic Flow™ (EGF) Identified Sources With Consistent Location Across Subsequent EGF-Guided Procedures(Index Procedure until Recurrence Procedure)
  • Number of Participants With 12-month Freedom From AF Recurrence(90 day - 12 months)
  • Average EGF Source Ablations Per Patient(During the procedure)
  • Total Duration of EGF Source Ablation Per Patient(During the procedure)
  • Average Fluoroscopy Time Per Patient(During the procedure)
  • Total Radiation Dose Per Patient(During the procedure)
  • Total Procedure Time(During the procedure)

研究者

发起方
Cortex
申办方类型
Industry
责任方
Sponsor

研究点 (8)

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