Study on Body Composition and Clinical Course in Patients Undergoing Catheter Ablation for Atrial Fibrillation

Prospective Registry Study on the Association of Body Composition, Left Atrial Low-Voltage Substrate, and Clinical Outcomes in Patients Undergoing First-Time Catheter Ablation for Atrial Fibrillation - AF-BCAS Registry

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000061777

Enrollment

200

Registered

2026-06-03

Start date

2026-06-03

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

Atrial fibrillation

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients scheduled to undergo first-time catheter ablation for atrial fibrillation. 2. Patients who provide written informed consent to participate in this study. 3. Patients aged 20 years or older at the time of informed consent.

Exclusion criteria

Exclusion criteria: 1. Patients who have previously undergone catheter ablation for atrial fibrillation. 2. Patients who do not provide informed consent to participate in this study. 3. Patients judged by the principal investigator or attending physician to be unsuitable for participation in this study.

Design outcomes

Primary

Measure	Time frame
Association between the proportion or extent of left atrial low-voltage areas on the left atrial voltage map obtained during first-time catheter ablation and pre-procedural body composition parameters assessed by InBody.	—

Secondary

Measure	Time frame
1. Association of atrial fibrillation or atrial tachyarrhythmia recurrence at 1, 3, 6, and 12 months after ablation with pre-procedural body composition parameters, left atrial low-voltage areas, and frailty assessment. 2. Modified EHRA score, use of antiarrhythmic drugs, electrical cardioversion, and repeat ablation at 1, 3, 6, and 12 months after ablation. 3. Association of procedural parameters, including procedure time, energy modality, ablation energy, additional ablation, first-pass isolation, and immediate reconnection, with body composition parameters and left atrial low-voltage areas. 4. Changes in echocardiographic parameters, especially left atrial strain, before ablation, on the day after ablation, and at 1, 3, 6, and 12 months after ablation, and their association with body composition parameters, left atrial low-voltage areas, and clinical outcomes.	—

Measure

Time frame

1. Association of atrial fibrillation or atrial tachyarrhythmia recurrence at 1, 3, 6, and 12 months after ablation with pre-procedural body composition parameters, left atrial low-voltage areas, and frailty assessment. 2. Modified EHRA score, use of antiarrhythmic drugs, electrical cardioversion, and repeat ablation at 1, 3, 6, and 12 months after ablation. 3. Association of procedural parameters, including procedure time, energy modality, ablation energy, additional ablation, first-pass isolation, and immediate reconnection, with body composition parameters and left atrial low-voltage areas. 4. Changes in echocardiographic parameters, especially left atrial strain, before ablation, on the day after ablation, and at 1, 3, 6, and 12 months after ablation, and their association with body composition parameters, left atrial low-voltage areas, and clinical outcomes.

—

Countries

Japan

Contacts

Public ContactMasayuki Ohta

Hokkaido cardiovascular hospital Department of cardiology

m-oota@hokujun.or.jp011-563-3911

Outcome results