Surgical Prevention of Atrial Fibrillation in Patients With Rheumatic Mitral Valve Lesion and Left Atrium Enlargement

September 8, 2017 updated by: Meshalkin Research Institute of Pathology of Circulation

Pilot, Randomized,Single Blind Trial of Surgical Prevention of Atrial Fibrillation in Patients With Rheumatic Mitral Valve Lesion

This study evaluates the safety and efficiency of surgical prevention of atrial fibrillation in patients with valvular heart disease and left atrium enlargement

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Preservation or appearance of AF(atrial fibrillation) after mitral valve surgery substantially reduce the number of excellent and good results of the operation in the long-term period, causing circulatory insufficiency, increased pulmonary hypertension, increasing the risk of thromboembolic events and stroke.

Significant predictors of AF after surgery are the initial size of the left atrium more than 6.0 cm, stenotic lesions and rheumatic genesis of mitral defect. 80% of patients in this group had AF during the first year after operation.

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • rheumatic mitral valve lesion
  • the absence a history of AF
  • sinus rhythm
  • left atrium size more than 6.0 cm

Exclusion Criteria:

  • refusal to participate in the study
  • aortic stenosis / regurgitation
  • coronary atherosclerosis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: without prevention
isolated mitral valve replacement or reconstruction, implantation of cardiac monitor
Device: cardiomonitor
in both groups cardiac rhythm will be controlled by a cardiomonitor
Active Comparator: group of prevention

mitral valve replacement or reconstruction with surgical prevention of AF (concomitant ablation of the left atrium) and implantation of cardiac monitor.

Prophylactic surgical ablation is performed to prevent AF in patients during mitral valve surgery. Ablation is performed by radiofrequency electrode or cryoprobe.
Device: cardiomonitor
in both groups cardiac rhythm will be controlled by a cardiomonitor
Procedure: surgical prevention of atrial fibrillation
Prophylactic surgical ablation is performed to prevent AF in patients during mitral valve surgery. Ablation is performed by radiofrequency electrode or cryoprobe. Pulmonary veins, posterior wall of the left atrium will be isolated by the scheme box-lesion with additional lines to the mitral valve and appendage of left atrium.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
composite outcome measure of complications
Time Frame: up to 1 year
up to 1 year

Secondary Outcome Measures

Outcome Measure
Time Frame
number of participants with freedom from AF according to the long-term ECG monitoring
Time Frame: 1 year
1 year
transport function of the left atrium according to TTE (transthoracic echo)
Time Frame: 1 year
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Meshalkin Research Institute of Pathology of Circulation

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 2, 2015

Primary Completion (Actual)

May 5, 2016

Study Completion (Actual)

October 20, 2016

Study Registration Dates

First Submitted

April 23, 2015

First Submitted That Met QC Criteria

June 16, 2015

First Posted (Estimate)

June 17, 2015

Study Record Updates

Last Update Posted (Actual)

September 11, 2017

Last Update Submitted That Met QC Criteria

September 8, 2017

Last Verified

September 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SPAF (Other Identifier: Alias Study Number)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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