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CompletedNCT05227586Updated Feb 7, 2022

Adjunctive Right Atrial Ablation for Persistent Atrial Fibrillation With Right Atrial Enlargement

An observational study in Persistent Atrial Fibrillation and Right Atrial Enlargement, sponsored by Shanghai Chest Hospital. Completed at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2022-02-07.

Sponsored by Shanghai Chest Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
195
Ages
18 Years to 80 Years
Sex
All
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Study summary

This is retrospective cohort study testing whether patients with persistent atrial fibrillation and right atrial enlargement may benefit from adjunctive right atrial ablation.

Read the detailed description

This is retrospective cohort study testing whether patients with persistent atrial fibrillation and right atrial enlargement may benefit from adjunctive RA ablation.

We enrolled 65 patients with persistent atrial fibrillation and right atrial enlargement received adjunctive right atrial ablation. These patients were 1:2 match with 130 patients received left atrial ablation only. Atrial fibrillation recurrence rate and other paremeters were analyzed to evaluate the efficacy of adjunctive right atrial ablation in this subset of patients.

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Conditions studied

  • Persistent Atrial Fibrillation
  • Right Atrial Enlargement

Keywords

  • Atrial fibrillation
  • Right atrium
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In context

Atrial Fibrillation

3,870 studies on the registry are indexed under Atrial Fibrillation; 924 are open to participants now.

This study's enrollment of 195 is below the median of 300 across 1,363 observational studies indexed under Atrial Fibrillation.

Browse Atrial Fibrillation studies →

Lead sponsor

Shanghai Chest Hospital is the lead sponsor of 194 studies on the registry; 94 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Sampling method
Non-probability sample

Study population

The study population enrolled were patients with persistent atrial fibrillation and right atrial enlargement received catheter ablation for the first time in our institution.

Patients with a history of catheter ablation, valvular heart disease, hypertrophic or dilated cardiomyopathy and unavailable of follow-up data were excluded

Inclusion criteria

  1. Aged 18 to 80 years old;
  2. Persistent AF with right atrial enlargement;
  3. Nonresponse or intolerance to ≥1 antiarrhythmic drug.

Exclusion criteria

Exclusion Criteria:

  1. History of catheter ablation;
  2. valvular heart disease;
  3. hypertrophic cardiomyopathy or dilated cardiomyopathy;
  4. Without follow-up data
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
195 participants (actual)
Patient registry
No

Groups and cohorts

  • LA + RA ablation

    Patients with persistent atrial fibrillation and right atrial enlargement received adjunctive right atrial ablation when left atrial ablation did not terminate atrial fibrillation.

    Procedure: Circumferential pulmonary vein isolation + linear ablation + bi-atrial mapping + left atrial driver ablation + right atrial driver ablation

  • LA ablation only

    Patients with persistent atrial fibrillation and right atrial enlargement received left atrial ablation only

    Procedure: Circumferential pulmonary vein isolation + linear ablation + bi-atrial mapping + left atrial driver ablation

Interventions

  • ProcedureCircumferential pulmonary vein isolation + linear ablation + bi-atrial mapping + left atrial driver ablation

    Patients receive circumferential pulmonary vein isolation and linear ablation (ablation of a roof line and a mitral isthmus line) combined with bi-atrial mapping and left atrial driver ablation.

  • ProcedureCircumferential pulmonary vein isolation + linear ablation + bi-atrial mapping + left atrial driver ablation + right atrial driver ablation

    Patients receive circumferential pulmonary vein isolation and linear ablation (ablation of a roof line and a mitral isthmus line) combined with bi-atrial mapping , left atrial driver ablation and right atrial driver ablation.

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What researchers measure

Primary outcomes

  1. atrial fibrillation (AF) recurrence rate

    AF recurrence is defined as presence of documented AF episodes of 30 seconds or longer duration

    Time frame: at 12 months post procedure

Secondary outcomes

  1. atrial fibrillation (AF)/atrial flutter (AFL)/atrial tachycardia (AT) recurrence rate

    AF/AFL/AT recurrence is defined as presence of documented AF/AFL/AT episodes of 30 seconds or longer duration

    Time frame: at 12 months post procedure

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Study locations

1 site
  • Mu Qin
    Shanghai, 200030, China
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 7, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05227586
Lead sponsor
Shanghai Chest Hospital
Responsible party
Xu Liu (Professor, deputy director of cardiology department of Shanghai Chest Hospita, Shanghai Chest Hospital) — Principal investigator
First posted
Feb 7, 2022
Start date
Nov 1, 2021
Primary completion
Jan 1, 2022
Completion
Jan 20, 2022
Last update
Feb 7, 2022

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2022. You cannot join it, but the record below documents what was studied.

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