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Marshall Ethanolization, Pulmonary Vein Isolation and Line Completion for Ablation of Persistent Atrial Fibrillation

NCT04681872 · Status: ACTIVE_NOT_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 262

Last updated 2025-07-01

No results posted yet for this study

Summary

In ablation strategy for persistent Atrial Fibrillation (PsAF), ablation limited to Pulmonary Vein (PV) isolation is the most straightforward approach but the result give only 50% of arrhythmia free follow-up. Substrate modification strategies have failed to demonstrate their superiority with variable reported success rate. The Marshall network is a highly arrhythmogenic structure that has not been incorporated in current ablation strategies. The investigators sought to investigate a new ablation strategy that target systematically the vein of Marshall by ethanol infusion. This step is integrated in a new ablation strategy consisting in a global anatomical substrate based ablation including PV isolation and left atrial linear ablation (Marshall-Plan).

Conditions

Interventions

PROCEDURE

Destruction of Marshall bundles

Destruction of Marshall bundles by ethanol 96% infusion (2 separate injections of 5ml on 1 minute each) followed by ablation of the distal coronary sinus bundles, the ridge and the saddle.

PROCEDURE

Pulmonary veins isolation

Achievement of a wide disconnection of the right and left pulmonary veins.

PROCEDURE

Linear ablation in the left and right atria

Ablation of the mitral, the roof, and the cavo-tricuspid isthmus

Sponsors & Collaborators

  • University Hospital, Bordeaux

    lead OTHER

Principal Investigators

  • Nicolas DERVAL, MD · University Hospital, Bordeaux

  • Antoine BENARD, MD · University Hospital, Bordeaux

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-09-20
Primary Completion
2027-09-20
Completion
2027-09-20

Countries

  • Belgium
  • France

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04681872 on ClinicalTrials.gov