NCT04237389

Brief Summary

Despite good progress in the management of patients with atrial fibrillation (AF), this arrhythmia remains one of the major causes of stroke, heart failure, sudden death, and cardiovascular morbidity in the world. Furthermore, the number of patients with AF is predicted to rise steply in the coming years. Even if the amount of antiarrhythmic drugs (AAD) is constantly increasing, there is a group of patients who has AF, resistant to AAD therapy. In such cases they are being offered alternative minimally invasive procedures, such as catheter or thoracoscopic ablation. With the discovery that AF often is initiated and maintained by electrical instability inside and around the pulmonary veins (PV) catheter and thoracoscopic ablation are now widely accepted invasive strategies to cure AF. Even though the results of both of the procedures are very promising in treating patients with paroxysmal AF, the decision making process, which approach should be used in patients with persistant or LSPAF, is still very controversial. According to 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS, catheter or surgical ablation should be considered in patients with symptomatic persistent or long-standing persistent (LSP) AF refractory to AAD therapy to improve symptoms, considering patient choice, benefit and risk, supported by an AF Heart Team (IIaC). Since, there is no actual evidence base, which approach is more effective and save in patients with persistant and LSP AF, the aim of the investigator's study is to evaluate the results of both of the approaches in such group of patients.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

March 22, 2019

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

January 15, 2020

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 23, 2020

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2022

Completed
Last Updated

January 23, 2020

Status Verified

January 1, 2020

Enrollment Period

3.4 years

First QC Date

January 15, 2020

Last Update Submit

January 22, 2020

Conditions

Keywords

persistent atrial fibrillationcatheter ablationthoracoscopic ablationLAA removalBox-lesionablation indexhigh-density mappinghybrid procedure

Outcome Measures

Primary Outcomes (2)

  • Freedom from AF and other atrial tachycardia

    Freedom from AF and other atrial tachycardias, lasting more than 60 sec, determined by 24-hour Holter monitoring. Other atrial tachycardias include left atrial flutters, typical atrial flutters

    12 month

  • Major adverse cardiac and cerebral events (MACCE)

    MACCE include death, stroke, transitory ischemic attack, hemopericarditis, implantation if pacemaker.

    12 month

Secondary Outcomes (3)

  • Freedom of AAD

    12 month

  • Postoperative hospitalization duration

    2 month

  • Decrease in the frequency of AF episodes

    12 month

Study Arms (2)

Ablation Index guided catheter radiofrequency ablation

ACTIVE COMPARATOR

30 patients, who undergo Ablation Index (AI) guided catheter RF ablation

Procedure: Ablation Index Guided endocardial catheter radiofrequency ablation

Thoracoscopic surgical epicardial ablation

ACTIVE COMPARATOR

30 patients, who undergo thoracoscopic ablation using "Box-lesion" set

Procedure: minimally invasive thoracoscopic surgical epicardial ablation.

Interventions

Ablation Index (AI) guided catheter RF ablation with circumferential ablation around the right and left PVs and 2 additional lines between the lower and upper PVs (endoBox-lesion).

Ablation Index guided catheter radiofrequency ablation

Description: minimally invasive thoracoscopic surgical epicardial ablation using "Box-lesion" set, which includes isolation of the right and left PVs, roof and posterior wall lines and removal of the LAA.

Thoracoscopic surgical epicardial ablation

Eligibility Criteria

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

You may qualify if:

  • Patient is older than 18 years old
  • Patient has nonparoxismal atrial fibrillation
  • Sympthomatic AF
  • Patient is refractory to at least one antiarrhythmic drug
  • Indications for catheter or thoracoscopic ablation
  • Absence of previous failed catheter or surgical AF ablations
  • Patients agreement

You may not qualify if:

  • Patient is younger than 18 years old
  • Contraindications for catheter or thoracoscopic ablation
  • Any previous heart surgeries (open/interventional)
  • Congenital heart diseases
  • Paroxismal AF

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

A.V. Vishnevsky National Medical Research Center of Surgery

Moscow, 11799, Russia

RECRUITING

Related Publications (1)

  • Castella M, Kotecha D, van Laar C, Wintgens L, Castillo Y, Kelder J, Aragon D, Nunez M, Sandoval E, Casellas A, Mont L, van Boven WJ, Boersma LVA, van Putte BP. Thoracoscopic vs. catheter ablation for atrial fibrillation: long-term follow-up of the FAST randomized trial. Europace. 2019 May 1;21(5):746-753. doi: 10.1093/europace/euy325.

MeSH Terms

Conditions

Atrial Fibrillation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Elena A Artyukhina

    A.V. Vishnevsky National Medical Research Center of Surgery

    STUDY CHAIR

Central Study Contacts

Irina A Taymasova

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
M.D., Ph.D., Academician of the Russian Academy of Science, Head of the A.V. Vishnevsky National Medical Research Center of Surgery

Study Record Dates

First Submitted

January 15, 2020

First Posted

January 23, 2020

Study Start

March 22, 2019

Primary Completion

August 31, 2022

Study Completion

August 31, 2022

Last Updated

January 23, 2020

Record last verified: 2020-01

Data Sharing

IPD Sharing
Will not share

Locations