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MRI as a Predictor of Outcomes in Patients Undergoing Mitral Valve Surgery (MRI-MVS)

9. Januar 2018 aktualisiert von: Atlantic Health System

Prospective Evaluation of MRI as a Predictor of Outcomes in Patients Undergoing Mitral Valve Surgery: MRI-MVS Study

Based on the ACC/AHA guidelines for the management of mitral valve disease, quantifying the severity of mitral regurgitation is central to determining which patients are appropriate for correction of their mitral valve by surgery. Specifically, once the diagnosis of severe MR is made, patients are considered appropriate for mitral valve surgery in almost all clinical circumstances. However, there is a significant mortality and morbidity associated with mitral valve surgery The most common diagnostic tool to assess the severity of MR is echocardiography. Several studies have shown that echocardiography parameters used to quantify and qualify MR have high inter-observer and intra-observer variability, calling the accuracy of these parameters into question. Furthermore, studies have shown that there is a significant degree of discordance between echocardiography and MRI when assessing MR, particularly among patients referred for mitral valve surgery. In a recent study, quantification of mitral regurgitant volume MRI was found to be more accurate than echocardiography in patients who underwent mitral valve surgery. All 38 patients who underwent mitral valve surgery in this study were deemed appropriate according the ACC/AHA guidelines based on echocardiographic findings. However, more than 2/3rds of patients who underwent mitral valve surgery in this study did not have severe MR by MRI. Thus, we propose this prospective multicenter trial to assess: 1) the severity of MR by MRI in patients undergoing mitral valve surgery. 2) the impact of mitral valve surgery on quality of life and healthcare costs in the context of MR severity by MRI, 3) assess patient outcomes post surgery in the context of MR severity by MRI and 4) the likelihood of valve replacement vs. repair according to MR severity by MRI.

Studienübersicht

Status

Unbekannt

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Mitral regurgitation is a common disease which can lead to heart failure and death if left untreated. The only known therapy for mitral regurgitation is correction of the mitral valve, most commonly performed by surgical repair or replacement. According the STS database, there were 15,748 lone mitral valve surgeries in 2014. The number of mitral valve surgeries has been increasing with a 23% increase between the years 2010 and 2014. Based on the ACC/AHA guidelines for the management of mitral valve disease, quantifying the severity of mitral regurgitation is central to determining which patients are appropriate for correction of their mitral valve by surgery. Specifically, once the diagnosis of severe MR is made, patients are considered appropriate for mitral valve surgery in almost all clinical circumstances. However, there is a significant mortality and morbidity associated with mitral valve surgery. In the STS database, 30 day mortality was ~2% for repair and ~5% for replacement. This data does not take into account long-term mortality and morbidity from re-operation and life-long anti-coagulation as well as changes in quality of life.

The most common diagnostic tool to assess the severity of MR is echocardiography. Several studies have shown that echocardiography parameters used to quantify and qualify MR have high inter-observer and intra-observer variability, calling the accuracy of these parameters into question. Furthermore, studies have shown that there is a significant degree of discordance between echocardiography and MRI when assessing MR, particularly among patients referred for mitral valve surgery. In a recent study, quantification of mitral regurgitant volume MRI was found to be more accurate than echocardiography in patients who underwent mitral valve surgery. All 38 patients who underwent mitral valve surgery in this study were deemed appropriate according the ACC/AHA guidelines based on echocardiographic findings. However, more than 2/3rds of patients who underwent mitral valve surgery in this study did not have severe MR by MRI. Thus, we propose this prospective multicenter trial to assess: 1) the severity of MR by MRI in patients undergoing mitral valve surgery. 2) the impact of mitral valve surgery on quality of life and healthcare costs in the context of MR severity by MRI, 3) assess patient outcomes post surgery in the context of MR severity by MRI and 4) the likelihood of valve replacement vs. repair according to MR severity by MRI.

Studientyp

Beobachtungs

Einschreibung (Voraussichtlich)

100

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Studienorte

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Probenahmeverfahren

Nicht-Wahrscheinlichkeitsprobe

Studienpopulation

Subjects who are scheduled to undergo ACC/AHA guideline directed mitral valve surgery for mitral regurgitation.

Beschreibung

Inclusion Criteria:

  • Age 18 years and older.
  • Able to give informed consent.
  • Undergoing lone mitral valve surgery for chronic primary mitral regurgitation within 30 days.
  • Indication for mitral valve surgery is a class I or IIa according to the 2014 ACC/AHA guidelines for the management of valvular heart disease.

Exclusion Criteria:

  • Secondary mitral regurgitation.
  • Have a device which is not compatible with MRI
  • Claustrophobia preventing MRI.
  • Concomitant CABG, other valve surgery, or other cardiac surgery.
  • Atrial fibrillation or other substantial arrhythmia that would substantially degrade MRI image acquisition.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

Kohorten und Interventionen

Gruppe / Kohorte
Intervention / Behandlung
Mitral Valve Surgery
Patients undergoing ACC/AHA guideline directed mitral valve surgery for mitral insufficiency.
ACC/AHA guideline directed mitral valve repair or replacement

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Operative and peri-operative outcomes according to the mitral regurgitation severity quantified by MRI.
Zeitfenster: 2 years
Operative and peri-operative outcomes (mortality, morbidity, hospitalizations, reoperation, bleeding, and CVA) in the context of mitral regurgitation severity quantified by MRI.
2 years

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Quality of life
Zeitfenster: 2 years
Operative and peri-operative outcomes (mortality, morbidity, hospitalizations, reoperation, bleeding, and CVA) in the context of mitral regurgitation severity quantified by MRI.
2 years
Repair vs Replacement
Zeitfenster: 4 months
Assess if the likelihood of mitral valve repair vs. replacement is associated with mitral regurgitant severity as quantified by MRI.
4 months
Severity of mitral regurgitation as quantified MRI in subjects who are undergoing guideline directed mitral valve surgery.
Zeitfenster: 0 days
Cross sectional data regarding severity of mitral regurgitation as quantified MRI in subjects who are undergoing guideline directed mitral valve surgery
0 days
Correlation of pre-surgical regurgitant volume as quantified by MRI with post-surgical change in LV EDV.
Zeitfenster: 4 months
Correlation of pre-surgical regurgitant volume as quantified by MRI with post-surgical change in LV EDV.
4 months

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn

1. Januar 2017

Primärer Abschluss (Voraussichtlich)

1. Dezember 2020

Studienabschluss (Voraussichtlich)

1. Dezember 2020

Studienanmeldedaten

Zuerst eingereicht

16. Dezember 2016

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

4. Januar 2017

Zuerst gepostet (Schätzen)

6. Januar 2017

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

11. Januar 2018

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

9. Januar 2018

Zuletzt verifiziert

1. Januar 2018

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 967510-2

Plan für individuelle Teilnehmerdaten (IPD)

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NEIN

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