Pulmonary Vein Ablation of Atrial Fibrillation Using Magnetic Navigation: Single Ring Versus Circumferential Techniques

Pulmonary Vein Ablation With Magnetic Navigation in Patients With Therapy-refractory Symptomatic Atrial Fibrillation: Comparison of Single Ring and Circumferential Ablation Techniques

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01583075

Enrollment

Registered

2012-04-23

Start date

2009-12-31

Completion date

Unknown

Last updated

2012-04-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pulmonary Vein Isolation, Ablation Time, Procedure Time, Freedom Form Atrial Fibrillation

Brief summary

The single-ring ablation method aims for isolation of the posterior LA wall including the pulmonary veins. If avoiding ablation on the posterior LA wall esophageal injury is unlikely. Aim of this prospective study was to evaluate the safety and efficacy of an RMN-guided single-ring ablation method as compared to standard RMN-guided circumferential PVA.

Interventions

PROCEDURECircumferential pulmonary vein ablation

Circumferential pulmonary vein ablation

PROCEDUREsingle ring pulmonary vein ablation

single ring pulmonary vein ablation

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

30 Years to 80 Years

Healthy volunteers

Inclusion criteria

* drug refractory AF patients undergoing PVA

Exclusion criteria

* drug refractory AF patients undergoing repeat PVA

Design outcomes

Primary

Measure	Time frame	Description
Acute procedural success	After the end of the ablation procedure	number of PVs isolated at the end of the ablation procedure

Secondary

Measure	Time frame	Description
Long-term procedural success	12 months	long-term freedom from any AT/AF episodes

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026