Assessment of Sustained Systolic-to-diastolic Flexibility of the Mitral Valve Annulus With the Sorin MEMO 3D Mitral Anuloplasty Ring

NCT ID: NCT01987635

Last Updated: 2022-12-09

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

NA

Total Enrollment

33 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-01-16

Study Completion Date

2018-09-28

Brief Summary

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Mitral valve reconstruction commonly requires the use of an anuloplasty device to assure long-term durability of the repair. Among mitral anuloplasty devices, varying from rigid to complete flexible ring substitutes, the most recent ones are aimed to restore the natural saddle shape of the mitral annulus, in order to decrease the stress tension on both mitral leaflets and chordal attachments. So far, even for flexible ring devices, the sustained flexibility of the device remained unproven, probably by cicatricial fibrotic tissue ingrowth after implantation.

Due to specific structural characteristics based on a nitinolstent with carbofilm-coating, the MEMO 3D ring device of SORIN claims preservation of the ring flexibility during the cardiac cyclus. Consequently, mitral anuloplasty with this device is expected to decrease the stress during the systolo-diastolic movements of the valve, and so, improve the late durability of the repair.

Echocardiography is the first-line technique for mitral valve assessment after surgical repair, for both intra-operative evaluation and serial follow-up of valve function. Recently, three-dimensional echocardiography has been introduced into clinical practice, affording qualitative and quantitative measurement of mitral valve function and size during the cardiac cycle.This method allows to quantify precisely the excursion of the mitral annulus between systole and diastole.

The aim of this study is to analyse the systolo-diastolic movement of the mitral annulus after the use of an anuloplasty with the SORIN MEMO 3D device, after surgical implantation and its sustainability, 1 year after implantation.

This hypothesis is tested in a case-controlled comparison with a standard used rigid ring device.

Therefore, 3-D echocardiography will be performed at the time of surgical repair, and after 1 year, to define the size and surface change of the mitral anuloplasty device during the cardiac cycle.

Based on a sample size calculation, 10 patients in each comparison group will be included, suggesting a study cohort of 20 patients eligible for mitral valve repair.

Detailed Description

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Conditions

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Mitral Valve Disease

Keywords

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Mitral valve disease primarily regurgitation necessitating surgical repair

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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MEMO 3D anuloplasty ring

MEMO 3D anuloplasty ring

Group Type EXPERIMENTAL

MEMO 3D ring

Intervention Type DEVICE

The experimental MEMO 3D ring is placed.

3D Echocardiography

Intervention Type PROCEDURE

rigid ring

rigid ring

Group Type ACTIVE_COMPARATOR

Standard use of rigid ring.

Intervention Type DEVICE

The rigid ring is placed, which is standard procedure.

3D Echocardiography

Intervention Type PROCEDURE

Interventions

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MEMO 3D ring

The experimental MEMO 3D ring is placed.

Intervention Type DEVICE

Standard use of rigid ring.

The rigid ring is placed, which is standard procedure.

Intervention Type DEVICE

3D Echocardiography

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* All patients requiring the use of an mitral anuloplasty device to restore the mitral competence by surgery are potential candidates for study inclusion, if survival of at least more than 1 year is expected
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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LivaNova

INDUSTRY

Sponsor Role collaborator

University Hospital, Ghent

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Guy Vandenplas, MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Ghent

Locations

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Ghent University Hospital

Ghent, , Belgium

Site Status

Countries

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Belgium

Related Links

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Other Identifiers

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2013/900

Identifier Type: -

Identifier Source: org_study_id