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Comparison between Contact Force Monitoring and Unipolar Signal Modification as a Guide for Catheter Ablation of Atrial Fibrillation: A Prospective Multi-centre Randomized Controlled Study (COMPASS study)

Comparison between Contact Force Monitoring and Unipolar Signal Modification as a Guide for Catheter Ablation of Atrial Fibrillation: A Prospective Multi-centre Randomized Controlled Study (COMPASS study) - Comparison between Contact Force Monitoring and Unipolar Signal Modification as a Guide for Catheter Ablation of Atrial Fibrillation: A Prospective Multi-centre Randomized Controlled Study (COMPASS study)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000021127
Enrollment
138
Registered
2016-02-21
Start date
2016-01-11
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Paroxysmal atrial fibrillation

Interventions

Every single RF application will be performed under CF guidance. Target CF of 20 g (with range of 10-30 g) and minimum FTI (force time integral) of 400 g s. VisiTag is utilized to visualize the cathet

Sponsors

Department of Cardiology, Tokyo Women's Medical University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients with paroxysmal atrial fibrillation who will undergo radio-frequency catheter ablation

Exclusion criteria

Exclusion criteria: 1) Persistent AF 2) Prior left atrial ablation (surgical or catheter) 3) Left atrial volume >50mm 4) Left ventricular ejection fraction <40% 5) Contraindication to anticoagulation medications 6) Severe pulmonary disease 7) Maintenance dialysis to chronic renal insufficiency

Design outcomes

Primary

MeasureTime frame
Ablation success at 1 after after the index procedure. The definition of recurrence; any atrial tachyarrhythmia lasting more than 30 seconds after 3 month after the index procedure. The definition of procedural success; no recurrence without any anti-arrhythmic drugs.

Secondary

MeasureTime frame
1) acute left atrium-pulmonary vein electrical reconnection (time-dependent/ATP-dependent) 2) ablation time 3) energy 4) procedural time 5) complication associated with the procedure 6) contact force value

Countries

Japan

Contacts

Public ContactKoichiro Ejima

Tokyo Women's Medical University Cardiology

koichiro@qf6.so-net.ne.jp03-3353-8111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026