Observatory of Anticoagulation After Bioprosthetic Aortic Valve Replacement (ARVA)

August 13, 2019 updated by: Bernard IUNG, French Cardiology Society

The bioprosthetic aortic valve replacement is a frequent intervention because of the predominance of calcified aortic stenosis, which is the most common valvular disease, and aging of the population.

International guidelines recommend anticoagulant therapy during the 3 postoperative months, but the risk-benefit ratio of anticoagulation post-operatively is questioned because of the low level of evidence available studies and their sometimes conflicting conclusions.

Questionnaires sent to practitioners have highlighted discrepancies between common practices and recommendations.

However, there is no analysis of actual patterns of postoperative anticoagulation after aortic valve replacement with bioprosthesis.

The aim of the ARVA observatory is to establish a cohort of 600 patients enrolled in 3 months and had a bioprosthetic aortic valve replacement in one of the 22 surgical centers French.

Study Overview

Status

Completed

Conditions

Detailed Description

The study will include consecutive patients who agreed to participate in the study, which meet the criteria for inclusion, that is to say consecutive patients operated on by a bioprosthetic aortic valve replacement during the 3 months of inclusion. Patients will be included immediately after completion of aortic valve replacement.

The data will be entered directly by the referent of each center, based on data from the French Society of Cardiology accessible by Internet on a secure site.

The follow-up time will be 6 months

The incidence of thromboembolic complications and bleeding and mortality within 6 months will be analyzed in a standardized manner according to the recommendations on the analysis of morbidity and mortality after valve surgery.

Study Type

Observational

Enrollment (Actual)

434

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

  • France
      • Paris, France, 75018
        • Bichat Hospital

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 and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with calcified aortic stenosis operated on for bioprosthetic aortic valve replacement

Description

Inclusion Criteria:

  • Age ≥ 18 years old

  • Patients operated on for single bioprosthetic aortic valve replacement during the study period:

    • with or without reinforcement
    • with or without associated CABG
    • with or without action on the ascending aorta
    • whether a first intervention or reoperation
  • Patients who agreed to participate in the study

Exclusion Criteria:

  • Replacement aortic valve homograft or autograft
  • Surgical procedures on another valve (conservative or prosthetic replacement)
  • Permanent Atrial Fibrillation
  • Processing anticoagulant vitamin K-long course

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

Cohorts and Interventions

Group / Cohort
Biopresthetic aortic valve replacement.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Mortality
Time Frame: 6 months
6 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Hemorragic and thrombo-embolitic complications
Time Frame: 6 months
6 months

Collaborators and Investigators

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

Sponsor

French Cardiology Society

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

January 1, 2011

Primary Completion (ACTUAL)

December 1, 2013

Study Completion (ACTUAL)

June 1, 2014

Study Registration Dates

First Submitted

February 9, 2011

First Submitted That Met QC Criteria

February 9, 2011

First Posted (ESTIMATE)

February 10, 2011

Study Record Updates

Last Update Posted (ACTUAL)

August 14, 2019

Last Update Submitted That Met QC Criteria

August 13, 2019

Last Verified

August 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 10185

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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