NCT04833985

Brief Summary

A total of 75 patients with atrial fibrillation were scheduled to receive left atrial appendage occlusion combined with radiofrequency ablation, which were divided into 3 groups. The operation was performed under the guidance of intracardiac echocardiography and transesophageal echocardiography and fluoroscope only respectively (allocation ratio 1:1:1). During the operation, the total amount of contrast medium injected, the fluoroscopy time and the time from femoral vein puncture to transseptal puncture to closure were recorded in all patients. All patients underwent transesophageal echocardiography before and 3 months after operation, and the results were explained by two experienced ultrasound doctors to measure the presence of left atrial thrombus, residual shunt and device-related thrombus. All patients were examined by transthoracic echocardiography 3 months after operation to evaluate new pericardial effusion, pericardial tamponade, instrument embolization / displacement and so on. The baseline clinical and surgical features and hospitalization outcomes of patients guided by ICE and TEE and fluoroscopy only were recorded and compared. Clinical endpoints include death, new pericardial effusion that does not require pericardiocentesis, tamponade with pericardiocentesis, instrument embolism / displacement, bleeding at the entry site, thromboembolic events (stroke / transient ischemic attack \[TIA\]). The purpose of this study was to evaluate the feasibility, safety and effectiveness of intracardiac echocardiographic (ICE)-guided and transesophageal echocardiographic (TEE)-guided and fluoroscopy only-guided left atrial appendage occlusion combined with radiofrequency ablation. The average follow-up time is 3 months.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
75

participants targeted

Target at P25-P50 for not_applicable atrial-fibrillation

Timeline
Completed

Started Jul 2020

Shorter than P25 for not_applicable atrial-fibrillation

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 13, 2020

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

March 29, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 6, 2021

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2021

Completed
Last Updated

May 5, 2022

Status Verified

July 1, 2020

Enrollment Period

1 year

First QC Date

March 29, 2021

Last Update Submit

May 4, 2022

Conditions

Outcome Measures

Primary Outcomes (2)

  • injected contrast media

    milliliter

    in the procedure

  • fluoroscopy time were recorded

    mGy

    in the procedure

Secondary Outcomes (6)

  • the time from femoral vein puncture to transseptal puncture to closure were recorded

    in the procedure

  • The size of the LAA

    in the procedure

  • the size of the selected umbrella in operation

    in the procedure

  • residual shunt and DRT after transcatheter closure of left atrial appendage detected

    before operation and 3 months after operation

  • new pericardial effusion were detected

    3 months after operation

  • +1 more secondary outcomes

Study Arms (3)

transesophageal echocardiography guidance

EXPERIMENTAL
Procedure: LAAC combined with radiofrequency ablation

intracardiac echocardiography guidance

EXPERIMENTAL
Procedure: LAAC combined with radiofrequency ablation

fluoroscopy only guidance

EXPERIMENTAL
Procedure: LAAC combined with radiofrequency ablation

Interventions

Each patient received the same group of patients with simple radiofrequency ablation and LAAC

fluoroscopy only guidanceintracardiac echocardiography guidancetransesophageal echocardiography guidance

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • AF attack occurred in patients with a duration of more than one year, patients taking class I and class III antiarrhythmic drugs could not prevent AF, patients younger than 80 years old Cha2ds2-vasc score ≥2 and HAS-BLED score ≥3, not suitable for long-term oral anticoagulant drugs.

You may not qualify if:

  • Patients with a history of atrial thrombosis or valvular heart disease (moderate or severe valve stenosis or severe valve regurgitation), patients undergoing prosthetic heart valve replacement, pregnant women, patients with previous liver and kidney diseases, malignant tumors or blood system diseases.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Second Hospital of Hebei Medical University

Shijiazhuang, Hebei, China

Location

MeSH Terms

Conditions

Atrial Fibrillation

Interventions

Radiofrequency Ablation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Radiofrequency TherapyTherapeuticsAblation TechniquesSurgical Procedures, Operative

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
director of cardiology department

Study Record Dates

First Submitted

March 29, 2021

First Posted

April 6, 2021

Study Start

July 13, 2020

Primary Completion

July 31, 2021

Study Completion

July 31, 2021

Last Updated

May 5, 2022

Record last verified: 2020-07

Locations