Imaging Assessment of Diastolic Function

June 22, 2016 updated by: Luc Mertens, The Hospital for Sick Children

Combined Echocardiographic and MRI Assessment of Diastolic Function in Patients With Congenital Heart Disease

Diastolic function is poorly studied in children with congenital heart disease. This is mainly due to the lack of validated techniques. Cardiac MRI offers two advantages compared to echocardiography: 1. accurate measurements of ventricular volumes and mass; 2. tissue characterization. The main advantage of echocardiography is a better temporal resolution which allows the study of short events like early relaxation. Overall there is a lack of studies correlating different echocardiographic and MRI parameters of heart function in pediatric populations with congenital or acquired heart diseases. This study will address specific questions on specific groups of patients that might bring more insight into chamber interaction and cardiac function. This study hypothesizes the following:

  • Atrial enlargement is a marker of chronic increase in filling pressures and 3D echo might be the best method for follow-up.
  • Cardiac remodeling associated with chronic loading results in changes in diastolic properties related to changes in cardiac mass and volume. This is related to changes in cardiac mechanics influencing diastolic parameters. Especially the influence on twisting and untwisting will be studied.
  • Regional myocardial fibrosis and scarring may account for regional systolic and diastolic dysfunction with possible prognostic impact

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

200

Phase

  • Phase 2

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

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M5G 1X8
        • The Hospital for Sick Children

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

1 day to 18 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • All patients with tetralogy of Fallot post repair, transposition of great arteries after arterial switch operation, aortic valvulopathy (aortic stenosis and aortic regurgitation), coarctation of the aorta and cardiomyopathy, who are planned to undergo a cardiac MRI will be eligible.
  • Informed consent

Exclusion Criteria:

  • Lack of informed consent
  • Need for general anesthesia
  • Similar contraindications as for a clinical MRI study apply.

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: Diagnostic
  • Allocation: Non-Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Magnetic Resonance Imaging (MRI)
Subjects with congenital heart disease will undergo an echocardiograph, as well as an MRI.
Procedure: Magnetic Resonance Imaging (MRI)
Procedure: Echocardiograph
Experimental: Echocardiograph
Subjects with congenital heart disease will undergo an echocardiograph, as well as an MRI.
Procedure: Magnetic Resonance Imaging (MRI)
Procedure: Echocardiograph

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Atrial Volumes
Time Frame: Day 1
Measure right and left atrial volumes by 2D and 3D echo and correlate the different echocardiographic measurements with MRI. This will allow identifying the most accurate measurement which can be used in clinical practice.
Day 1

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Assess Ventricular Volumes
Time Frame: Day 1
Assess ventricular volumes and mass and calculate mass/volume ratio. Study the effect of ventricular remodeling on myocardial mechanics especially twisting and untwisting. Relate these changes to evaluation of diastolic function.
Day 1
Myocardial Scarring
Time Frame: Day 1
Assess the presence of myocardial scarring in specific populations with congenital heart disease and correlate the findings with regional and global systolic and diastolic dysfunction.
Day 1

Collaborators and Investigators

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

Sponsor

The Hospital for Sick Children

Investigators

  • Principal Investigator: Luc Mertens, MD, The Hospital for Sick Children

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 Registration Dates

First Submitted

August 13, 2012

First Submitted That Met QC Criteria

August 14, 2012

First Posted (Estimate)

August 20, 2012

Study Record Updates

Last Update Posted (Estimate)

June 24, 2016

Last Update Submitted That Met QC Criteria

June 22, 2016

Last Verified

June 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1000017963

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.

Clinical Trials on Congenital Heart Disease

Clinical Trials on Magnetic Resonance Imaging (MRI)

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Liberia

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe