Radio Frequency Ablation for Atrial Flutter With Magnetic Resonance Guidance and Tracking: Pilot Study Using a Combination Imricor and Philips Interventional System
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 发起方
- 入组人数
- 8
- 试验地点
- 2
- 主要终点
- Number of serious adverse events
研究概览
简要总结
The Radio Frequency Ablation for Atrial Flutter with Magnetic Resonance Guidance and Tracking Pilot Study (hereafter referred to as "pilot study") is a prospective, non- randomized, single-center, pilot study. The purpose of this clinical study is to evaluate the safety and performance of the Imricor Medical Systems, Inc. (Imricor) Vision Ablation Catheter when used with related accessories for the treatment of type I atrial flutter. The Vision Ablation Catheter and its accessories have been designed for use under fluoroscopic or magnetic resonance guidance.
详细描述
An objective of the study is to perform the entire ablation procedure from subject preparation through confirmation of bidirectional conduction block entirely under magnetic resonance guidance. However, at the investigator's discretion, the preparation of the subject may occur in a conventional electrophysiology laboratory followed by transferring the patient to the magnetic resonance suite for the ablation procedure. Additionally, if bidirectional conduction block is not achieved within 90 minutes from the initial catheter placement, the subject may be transferred from the magnetic resonance suite to a conventional electrophysiology lab to complete the procedure. Clinical success is bidirectional conduction block regardless of the environment within which the ablation occurs.
The study will be conducted at a single center, Herzzentrum Leipzig University Hospital, in Germany, and a maximum of 30 subjects meeting inclusion/exclusion criteria will participate in the study. This study requires the use of investigational products from two independent manufacturers: Imricor and Philips. Imricor has developed the ablation catheter with related accessories, introducers, and recording system. Philips has developed an image guidance and mapping system that is compatible with the Imricor products. The Vision Ablation Catheter will be used in conjunction with the following investigational products: Vision Ablation Catheter Cable Set (accessory sterile cable), Vision Hemostasis Introducer, Vision Dual-Deflect Sheath, Horizon recording system, and the interventional MRI Suite (iSuite) image guidance and mapping system. With the exception of iSuite, which is manufactured by Philips, Imricor will provide all investigational devices used in the study. Each procedure will utilize the following two single-use products: two Vision Ablation Catheters and an accessory Catheter Cable set. At the discretion of the investigator, Vision Hemostasis Introducers may be used for femoral access and a Vision Dual- Deflect Sheath and may be used in conjunction with the Vision Ablation Catheter Cable Set. Ablation for the treatment of arrhythmia is an inherently complex procedure. Use of the investigational products listed above under magnetic resonance guidance is a new approach to performing the interventional electrophysiology procedure. The study population will consist of adult patients requiring ablation for type I atrial flutter.
Study subjects will require a follow-up visit or telephone call at 7 days post procedure.
Accordingly, the expected total study duration is approximately six months with study start planned for October 2014.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •First time indication for type I atrial flutter ablation
- •Age 18 or above
- •Patients willing and able (mentally and physically capable per physician's discretion) to understand the investigational nature, potential risks and benefits of the study and able to provide written informed consent to participate in the study and agree to comply with follow-up visits and evaluation
- •Patients able to receive anticoagulation therapy to achieve adequate anticoagulation
排除标准
- •Contraindication for MRI diagnostic exam
- •A cardiac ablation or cardiac surgery within 90 days prior to enrollment
- •Documented intracardiac thrombus, tumor, bleeding, clotting or other abnormality that precludes catheter introduction and placement
- •Myocardial infarction within 60 days prior to enrollment
- •Current unstable angina
- •History of cerebrovascular event (within 180 days prior to enrollment)
- •Patients with an ejection fraction less than or equal to 30% within 90 day prior to enrollment
- •Permanent leads in or through the right atrium
- •Clinically significant structural heart disease (including tricuspid valve regurgitation, tricuspid valve stenosis or other congenital heart disease) that would preclude catheter introduction and placement, as determined by the Investigator
- •Uncompensated congestive heart failure (NYHA Class III or IV)
- •Arrhythmia is secondary to electrolyte imbalance, thyroid disease, or other
- •reversible or non-cardiovascular cause
- •Known sensitivity to heparin or warfarin
- •Active or systemic infection
- •Any other significant uncontrolled or unstable medical condition (including but not limited to hypertension and diabetes)
- •Women who are pregnant or plan to become pregnant within the course of their participation in the investigation or who are breastfeeding
- •Life expectancy of less than 12 months
- •Patients with prosthetic valves
- •Contraindicated for transfemoral venous access
- •Older than 75 years
- •Current enrollment in any other clinical investigation
研究组 & 干预措施
ablation for typical atrial flutter
This group receives an MR-guide ablation for atrial flutter with the study device (catheter)
干预措施: ablation for typical atrial flutter (Procedure)
ablation for typical atrial flutter
This group receives an MR-guide ablation for atrial flutter with the study device (catheter)
干预措施: Vision Ablation Catheter (Device)
结局指标
主要结局
Number of serious adverse events
时间窗: 1 day
To provide scientific evidence that the Vision Ablation Catheter is safe as measured by the incidence of device and procedure related serious adverse events (SAEs).
次要结局
- Number of participants with successful ablation(7 days)