Concomitant Hybrid Versus Catheter Ablation for Atrial Fibrillation With Hypertrophic Cardiomyopathy

NCT ID: NCT05610215

Last Updated: 2024-08-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-02-11

Study Completion Date

2026-12-31

Brief Summary

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The goal of this clinical trial is to compare the rhythm control effect in hypertrophic non-obstructive patients with non-paroxysmal atrial fibrillation by either concomitant catheter endocardial and thoracoscopic epicardial ablation or catheter ablation alone. The study aims to see if concomitant hybrid ablation can more effectively achieve rhythm control effect than catheter ablation alone in non-paroxysmal atrial fibrillation patients with hypertrophic cardiomyopathy.

Detailed Description

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After informed consent, 66 eligible admissions will be recruited in 2 centers. Eligible participants will be randomly divided (1:1) into either hybrid or catheter ablation arms, looking for a primary outcome of 1-year freedom from atrial arrhythmias.

Conditions

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Atrial Fibrillation Cardiomyopathy, Hypertrophic Radiofrequency Ablation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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hybrid ablation

Participants in this group will receive concomitant thoracoscopic epicardial ablation and catheter endocardial ablation

Group Type EXPERIMENTAL

hybrid ablation

Intervention Type PROCEDURE

simultaneous thoracoscopic epicardial and catheter endocardial ablation

catheter ablation

Participants in this group will receive catheter endocardial ablation only

Group Type ACTIVE_COMPARATOR

catheter ablation

Intervention Type PROCEDURE

catheter endocardial ablation

Interventions

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hybrid ablation

simultaneous thoracoscopic epicardial and catheter endocardial ablation

Intervention Type PROCEDURE

catheter ablation

catheter endocardial ablation

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. Patients' age is ≥18 y
2. Clinically diagnosed hypertrophic cardiomyopathy (any left ventricular wall segment thickness ≥15 mm in genetical negative (or unknown genetical status) patients or ≥13mm in genetical positive ones-as measured by any imaging technique (echocardiography, cardiac magnetic resonance imaging or computed tomography)-that is not explained solely by loading conditions)
3. Non-obstructed left ventricular outflow obstruction with peak gradients \<30mmHg
4. Concomitant with persistent atrial fibrillation (7 days\<sustained episode lasting\<3 years) with drug-refractory symptoms.
5. Be able to understand the contents of the trial, and provide written informed consent to participate in this investigation.

Exclusion Criteria

1. Patients with left atrial size \>60 mm (2-dimensional echocardiography, parasternal long-axis view)
2. Contraindicated to systemic anticoagulation
3. Left ventricular ejection fraction ≤40%
4. Concomitant with left atrium or left atrial appendage emboli
5. Concomitant with a coronary or valvular disease that indicates intervention
6. Ischaemic stroke within 2 months
7. Previous ablation history
8. Uncontrolled hyper/hypothyroidism
9. End-staged kidney failure
10. Concomitantly involved in other trials
11. Pregnant or breastfeeding, or women of childbearing age not using a reliable contraceptive method
12. Concomitant with bacteremia or at an active phase of infection
13. Anatomically not suitable for thoracoscopic surgery(history of chest surgery or radiotherapy, etc.)
14. Unwilling or unable to comply with all peri-ablation and follow-up requirements
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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China National Center for Cardiovascular Diseases

OTHER_GOV

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Zhe Zheng, MD.PhD

Role: STUDY_CHAIR

Chinese Academy of Medical Sciences, Fuwai Hospital

Locations

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Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College

Beijing, , China

Site Status RECRUITING

Countries

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China

Central Contacts

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Zhe Zheng, MD.PhD

Role: CONTACT

+86-010-88396051

Yajie Tang, MD.PhD

Role: CONTACT

+8618813019554

Facility Contacts

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Zhe Zheng, MD,PhD

Role: primary

+86-010-88396051

Yajie Tang, MD,PhD

Role: backup

+8618813019554

References

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Tang Y, Li L, Chen S, Xue Y, Guo H, Song L, Tang M, Yao Y, Zheng Z. Hybrid versus catheter ablation for Hypertrophic CardioMyopathy with Atrial Fibrillation (HCM-AF): study protocol for a randomised controlled trial. BMJ Open. 2024 Oct 9;14(10):e089284. doi: 10.1136/bmjopen-2024-089284.

Reference Type DERIVED
PMID: 39384237 (View on PubMed)

Other Identifiers

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2022-1736

Identifier Type: -

Identifier Source: org_study_id

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