Isolation of Pulmonary Veins With PVAC GOLD in Elderly Patients

NCT ID: NCT04023461

Last Updated: 2022-07-12

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

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-06-29

Study Completion Date

2022-06-03

Brief Summary

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It is a prospective, randomized and double-blind clinical trial involving an invasive technique for isolation of pulmonary veins (PVAC gold) in relation to clinical treatment during an one year of segment. The patients included have paroxysmal atrial fibrillation (aged 65 years and older) refractory to antiarrhythmic treatments that do not have structural and / or ischemic heart diseases. This trial employed quality of life scores prior to the study and during the sixth and twelfth month of the segment, electrocardiograms and holter of 24 hours. The proposed imaging tests was the transesophageal echocardiogram before each procedure. The cerebral MRI was performed in the 24 hours post invasive procedure and Angio-tomography of the pulmonary veins in the 6-month segment.

Detailed Description

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Objective: Pulmonary vein isolation (PVI) for atrial fibrillation (AF) has become progressively safer and more effective with advances in single-shot devices. The aim of this study was to compare catheter ablation (CA) of second-generation pulmonary vein ablation catheter (PVAC) Gold technique versus clinical treatment in elderly patients (≥ 65 years old) with symptomatic paroxysmal AF (PAF) without structural heart diseases.

Methods: Prospective randomized study that selected consecutive patients with paroxysmal atrial fibrillation older than 65 years-old in two groups: (1) PVAC ablation group and (2) antiarrhythmic drugs therapy group. Primary outcomes were AF recurrences, progression to persistent AF forms. As secondary outcomes, changes in Mini-Mental State Examination and AF Quality of Life Score were accessed.This study doesn't include payment of participants. All patients signed the informed consent.

Conditions

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Atrial Fibrillation Paroxysmal Cardiac Arrythmias

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

All patients in clinical treatment arm had to keep on antiarrhythmic drug for AF rhythm control strategy
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Caregivers Outcome Assessors
At the time of patient recruitment, they were randomly assigned to ablation or medical therapy (antiarrhythmic drug arm) according to a 1:1 stratified randomization list locked into a computer system.

Study Groups

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Clinical Treatment Group

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventional Ablation Group

Group Type EXPERIMENTAL

PVAC GOLD catheter ablation

Intervention Type DEVICE

Isolation of pulmonary veins using PVAC GOLD catheter.

Interventions

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PVAC GOLD catheter ablation

Isolation of pulmonary veins using PVAC GOLD catheter.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Indication for isolation of pulmonary veins
* Age \>= 65 years old
* Association with the following characteristics:

1. Symptomatic Atrial Fibrillation;
2. Sinusal Rhythm maintenance failure for at least 1 Antiarrythmic Drugs;
3. Diagnosis of Atrial Fibrilation on resting eletrocardiogram and/or 24h Holter.

Exclusion Criteria

* Prior Atrial Fibrillation ablation;
* Atrial Fibrillation permanent and/or persistent;
* Left atrial size \> 55 mm;
* Mechanical prothetic mitral valve replacement;
* Presence of atrial thrombus;
* Cardiac invasive procedure \< 90 days;
* Cerebral embolism \< 6 months;
* Hypertrophic cardiomyopathy;
* Contraindications to antiocoagulation and cerebral MRI.
Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medtronic

INDUSTRY

Sponsor Role collaborator

University of Sao Paulo General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Mauricio Ibrahim Scanavacca

Arrhythmia Clinical Unit Director

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Mauricio I Scanavacca, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Arrythmia Clinical Unit Director

Locations

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Arrhythmia Clinical Unit - Instituto do Coração - HCFMUSP

São Paulo, São Paulo, Brazil

Site Status

Countries

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Brazil

Other Identifiers

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4471/16/137

Identifier Type: -

Identifier Source: org_study_id

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