Clinical Trials Logo
  1. Home
  2. Persistent Atrial Fibrillation
  3. NCT06260670

FLOW EVAL-AF: FLOW Mapping Electrogram VALidation in Patients With Persistent Atrial Fibrillation — FLOW EVAL-AF  

Persistent Atrial Fibrillation Clinical Trial

Official title:
Electrographic Flow Mapping Electrogram Validation in Patients With Persistent Atrial Fibrillation (FLOW EVAL-AF)

Clinical Trial Summary

FLOW EVAL-AF is a prospective, observational, single center pilot trial. The FLOW EVAL-AF trial is designed to identify driver sources in patients with persistent or longstanding persistent AF using EGF mapping and describe the activation patterns observed from concomitant high density mapping of those regions.

Clinical Trial Description

It is hypothesized that initiation and propagation of atrial fibrillation (AF) is dependent, at least in part, on rapid atrial stimulation from focal sources. It is debated whether the mechanism of arrhythmogenesis at these foci is abnormal automaticity, triggered activity, microreentry or rotational reentry. However, after activation emerges from these "driver" sites, fibrillatory conduction ensues resulting in the disorganized conduction pattern of AF. Conventional mapping systems can either achieve high spatial resolution by sequential tachycardia beats following a fixed intra-atrial activation pattern (as in macro reentrant atrial flutter), or high temporal resolution with very low spatial resolution achieved through multielectrode basket catheters. Activation mapping in AF with commercially available mapping systems has been unsuccessful in identifying driver sites because atrial activation patterns change on a beat-to-beat basis precluding the use of sequential mapping approaches, and real-time mapping with basket electrodes lacks sufficient resolution to delineate the complex patterns of conduction. Electrographic Flow (EGF) mapping (AblaMap®, Ablacon, Inc, Wheat Ridge, CO) is a unique method to assess dominant patterns of intra-atrial conduction during ongoing atrial fibrillation and has been previously described. Recordings from a multielectrode basket catheter are analyzed for electrical activation vectors over sequential 2-second segments during a 60 second acquisition period. Patterns of reproducible vector activation are used to identify driver sources for the atrial fibrillation (AF). Multiple sources are often identified in patients with persistent AF. It is anticipated that substrate modification of these source regions will eliminate the AF drivers and result in a favorable response to catheter ablation as shown in a previously published retrospective analysis. The FLOW EVAL-AF trial is designed to identify driver sources in patients with persistent or longstanding persistent AF using EGF mapping and describe the activation patterns observed from concomitant high density (HD) mapping of those regions. FLOW EVAL-AF is a prospective, observational, single center pilot trial. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT06260670
Study type Interventional
Source Cortex
Contact
Status Completed
Phase N/A
Start date September 1, 2022
Completion date October 28, 2022
View Details
See also
  Status Clinical Trial Phase
Completed NCT05970120 - A Study of Intracardiac Ultrasound With the NUVISION NAV Ultrasound Catheter N/A
Recruiting NCT05416086 - iCLAS™ Cryoablation System Post-Market Clinical Follow-up (PMCF) Study N/A
Completed NCT03650556 - Safety and Effectiveness of TactiCath™ Contact Force, Sensor Enabled™ (TactiCath SE) Catheter for Ablation of Drug Refractory, Symptomatic, Persistent Atrial Fibrillation N/A
Recruiting NCT04085731 - Driver-guided Ablation of Persistent Atrial Fibrillatiom
Withdrawn NCT02344394 - Comparison of Hybrid Ablation and Pulmonary Vein Isolation Alone vs Hybrid Ablation With PVI Plus Catheter Ablation N/A
Terminated NCT01683045 - Efficacy and Safety Study of the Estech COBRA® Surgical System to Treat Patients With a History of Irregular Heart Beats N/A
Completed NCT01694563 - ABLATE Post Approval Study - Synergy Ablation Lesions for Non-Paroxysmal Atrial Fibrillation N/A
Active, not recruiting NCT03643224 - DiamondTemp™ System for the Treatment of Persistent Atrial Fibrillation N/A
Withdrawn NCT05093868 - Electrographic Flow Mapping Validation in Patients With Persistent Atrial Fibrillation (EVAL AF) N/A
Completed NCT05152966 - Feasibility Study of the FARAPULSE™ Cardiac Ablation System Plus in the Treatment of Persistent Atrial Fibrillation(PersAFOne II) N/A
Completed NCT05043883 - Automated Assessment of PVI Using a Novel EP Recording System N/A
Completed NCT04022954 - HD Mapping of Atrial Fibrillation in Asia Pacific
Active, not recruiting NCT06124690 - Persistent Atrial Fibrillation Without the Evidence of Low-voltage Areas N/A
Not yet recruiting NCT05454111 - CARTO-Finder Guided Ablation Versus Multiscale Entropy Guided Ablation in Persistent Atrial Fibrillation N/A
Active, not recruiting NCT05077670 - Hybrid Characterization of Driver Sites During Atrial Fibrillation and Sinus Rhythm
Withdrawn NCT03835338 - WATCHMAN for Concomitant Left Atrial Appendage Electrical Isolation and Occlusion to Treat Persistent Atrial Fibrillation Rhythm N/A
Completed NCT02275104 - Multimodal Image Processing Software to Guide Cardiac Ablation Therapy N/A
Not yet recruiting NCT05565183 - Combined Study of ATrial Strain and Voltage by High Density Mapping in Young Patients With Atrial Fibrillation. N/A
Completed NCT02274857 - Randomized Evaluation of Atrial Fibrillation Treatment With Focal Impulse and Rotor Modulation Guided Procedures N/A
Completed NCT01014741 - Modified Ablation Guided by Ibutilide Use in Chronic Atrial Fibrillation N/A