NCT05989321

Brief Summary

This is a retrospective cohort study of radiofrequency ablation for the treatment atrial fibrillation(AF). Based on the electrophysiological phenomena found in these cases, the investigators propose a hypothesis regarding the underlying electrophysiological mechanism of AF, as well as a novel approach for catheter ablation of AF.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
116

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2021

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

January 1, 2021

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2022

Completed
15 days until next milestone

Study Completion

Last participant's last visit for all outcomes

July 15, 2022

Completed
1 year until next milestone

First Submitted

Initial submission to the registry

August 2, 2023

Completed
12 days until next milestone

First Posted

Study publicly available on registry

August 14, 2023

Completed
Last Updated

August 14, 2023

Status Verified

August 1, 2023

Enrollment Period

1.5 years

First QC Date

August 2, 2023

Last Update Submit

August 3, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • freedom from AF within 12 months

    AF recurrence was evaluated at 3, 6, 9, and 12 months using 72-hour Holter monitoring at each clinic visit. AF recurrence was defined as the occurrence of AF lasting at least 30 seconds after the 3-month blanking period.

    12 months

Secondary Outcomes (1)

  • the acute termination of AF during the procedure

    during the procedure

Study Arms (2)

PVI alone group

Patients who undergo PVI alone using ThermoCool SmartTouch catheter.

Procedure: PVI alone

PVI + SPs ablation group

Patients who undergo PVI + SPs ablation using ThermoCool SmartTouch catheter.

Procedure: PVI + SPs ablation

Interventions

PVI alonePROCEDURE

pulmonary vein isolation

PVI alone group

pulmonary vein isolation + SPs ablation

PVI + SPs ablation group

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

These cases are from a university hospital

You may qualify if:

  • patients with underwent the first catheter ablation for symptomatic AF

You may not qualify if:

  • patients with more than one missing follow-up would be excluded

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Second Affiliated Hospital of Kunming Medical University

Kunming, Yunnan, 650000, China

Location

Related Publications (1)

  • Hindricks G, Potpara T, Dagres N, Arbelo E, Bax JJ, Blomstrom-Lundqvist C, Boriani G, Castella M, Dan GA, Dilaveris PE, Fauchier L, Filippatos G, Kalman JM, La Meir M, Lane DA, Lebeau JP, Lettino M, Lip GYH, Pinto FJ, Thomas GN, Valgimigli M, Van Gelder IC, Van Putte BP, Watkins CL; ESC Scientific Document Group. 2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS): The Task Force for the diagnosis and management of atrial fibrillation of the European Society of Cardiology (ESC) Developed with the special contribution of the European Heart Rhythm Association (EHRA) of the ESC. Eur Heart J. 2021 Feb 1;42(5):373-498. doi: 10.1093/eurheartj/ehaa612. No abstract available.

MeSH Terms

Conditions

Atrial Fibrillation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Mingli Zhou, M.D.

    The Second Affiliated Hospital of Kunming Medical University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
associate chief physician

Study Record Dates

First Submitted

August 2, 2023

First Posted

August 14, 2023

Study Start

January 1, 2021

Primary Completion

June 30, 2022

Study Completion

July 15, 2022

Last Updated

August 14, 2023

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will not share

Locations