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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04023461
Other study ID # 4471/16/137
Secondary ID
Status Completed
Phase Phase 4
First received
Last updated
Start date June 29, 2017
Est. completion date June 3, 2022

Study information

Verified date July 2022
Source University of Sao Paulo General Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

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.


Description:

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.


Recruitment information / eligibility

Status Completed
Enrollment 60
Est. completion date June 3, 2022
Est. primary completion date February 20, 2021
Accepts healthy volunteers No
Gender All
Age group 65 Years and older
Eligibility 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.

Study Design


Intervention

Device:
PVAC GOLD catheter ablation
Isolation of pulmonary veins using PVAC GOLD catheter.

Locations

Country Name City State
Brazil Arrhythmia Clinical Unit - Instituto do Coração - HCFMUSP Sao Paulo SP

Sponsors (2)

Lead Sponsor Collaborator
University of Sao Paulo General Hospital Medtronic

Country where clinical trial is conducted

Brazil, 

Outcome

Type Measure Description Time frame Safety issue
Primary Recurrence of atrial fibrillation Recurrence of atrial fibrillation during 1 year of follow-up 1 year after ablation
Secondary Occurrence of Asymptomatic Cerebral Embolism Occurrence of Asymptomatic Cerebral Embolism during 1 year of follow-up 1 year of follow-up
Secondary Esophageal Ulcer Esophageal Ulcer documented by Esophagus-gastro-duodenoscopy after ablation procedure 24 hours after pulmonary vein isolation
Secondary Quality of Life Assessment Quality of Life in Atrial Fibrillation Questionnaire Score 1 year after ablation
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