Clinical Trials Logo

Clinical Trial Summary

A randomised controlled clinical trial to assess efficacy of convergent ablation with the LARIAT procedure, as compared to standard endocardial catheter ablation in patients with long-standing persistent atrial fibrillation (AF).


Clinical Trial Description

Atrial Fibrillation is the commonest arrhythmia and is a major cause of morbidity and mortality, often causative in ischaemic strokes and compounded by heart failure. Treatment options are limited for persistent long-standing AF (PeAF), with pulmonary vein isolation by endocardial ablation being insufficient and further additive endocardial lesions with repeated ablations yield mixed results resultant in further atrial arrhythmias. Currently success rates for catheter ablation are moderate at 40 to 70% in a single procedure. If this was improved, patient quality of life and readmission rates would significantly improve as well as a reduction in anti-arrhythmic drug use. The Convergent procedure - is a two stage minimally invasive hybrid approach. The first stage employs surgical ablation to the posterior wall of the left atrium in combination with the LARIAT procedure to isolate the left atrium appendage (LAA). The second stage involves endocardial catheter ablation to confirm the surgical ablation lesions, and perform further endocardial catheter ablation to leverage both epicardial and endocardial lesions to create durable, transmural lesions. Patients with long-standing persistent AF will be randomised in a 1:1 ratio to either the Convergent ablation with the LARIAT procedure or the standard endocardial catheter ablation. This feasibility study would assess recruitment to the trial, safety and efficacy of the Convergent procedure, in combination with a left atrial appendage system. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06165510
Study type Interventional
Source Barts & The London NHS Trust
Contact Syed Ahsan
Phone 020 7377 7000
Email syedahsan@nhs.net
Status Not yet recruiting
Phase N/A
Start date January 2024
Completion date October 2025

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
Completed NCT01694563 - ABLATE Post Approval Study - Synergy Ablation Lesions for Non-Paroxysmal Atrial Fibrillation 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
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
Completed NCT06260670 - FLOW EVAL-AF: FLOW Mapping Electrogram VALidation in Patients With Persistent Atrial Fibrillation 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