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Trial registered on ANZCTR
Registration number
ACTRN12611000156987
Ethics application status
Approved
Date submitted
9/02/2011
Date registered
9/02/2011
Date last updated
15/05/2014
Type of registration
Prospectively registered
Titles & IDs
Public title
Myocardial tissue characterisation in left ventricular hypertrophy using echocardiography and cardiac magnetic resonance.
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Scientific title
Myocardial tissue characterisation in left ventricular hypertrophy using echocardiography and cardiac magnetic resonance.
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Secondary ID [1]
253545
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None
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Universal Trial Number (UTN)
U1111-1119-2838
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Aortic Stenosis
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Systemic Hypertension
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Condition category
Condition code
Cardiovascular
259238
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0
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Hypertension
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Cardiovascular
259239
259239
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0
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Other cardiovascular diseases
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Echocardiogram will be performed to measure strain and diastolic cardiac function. Cardiac Magnetic Resonance Imaging will be performed to measure myocardial fibrosis and perfusion reserve . These tests will take approximately 90 minutes, and will performed once only in each patient, from either the aortic stenosis cohort, the systemic hypertension cohort or the healthy subjects.
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Intervention code [1]
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Not applicable
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Comparator / control treatment
Nil
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
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To determine whether the differences seen in LV hypertrophy in aortic stenosis by echocardiography and Cardiac MRI parameters of complex heart motion and tissue characterisation differentiate it from other forms of pathological hypertrophy.
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Assessment method [1]
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Timepoint [1]
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Echocardiography and Cardiac MRI on enrollment.
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Primary outcome [2]
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To determine whether the differences seen in left ventricular hypertrophy in systemic hypertension by echocardiography and Cardiac MRI parameters of complex heart motion and tissue characterisation differentiate it from other forms of pathological hypertrophy.
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Assessment method [2]
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Timepoint [2]
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Echocardiography and Cardiac MRI on enrollment.
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Secondary outcome [1]
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None
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Assessment method [1]
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Timepoint [1]
273132
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Nil
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Eligibility
Key inclusion criteria
Cohort 1. Patients with history of aortic stenosis.
Cohort 2. patients with history of systemic hypertension
Cohort 3. healthy subjects, no history of AS or hypertension
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Known cardiovascular disease
Known peripheral vascular disease
Hypercholesterolemia (total cholesterol > 6mmol/L)
Diabetes (type I or II)
Metabolic syndrome and a BMI of < 30
Standard MRI contraindications, including permanent pacemaker, implantable defibrillator, severe claustrophobia.
Renal impairment (eGFR < 60ml/min) will be an exclusion criterion from the administration of gadolinium
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Study design
Purpose
Screening
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Duration
Cross-sectional
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Selection
Defined population
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
28/02/2011
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
75
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Funding & Sponsors
Funding source category [1]
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Hospital
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Name [1]
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Flinders Medical Centre
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Address [1]
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Flinders Medical Centre
1 Flinders Drive
BEDFORD PARK
SA 5042
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Country [1]
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Australia
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Primary sponsor type
Individual
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Name
Professor Joesph Selvanayagam
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Address
Department Cardiovascular Medicine
Flinders Medical Centre
1 Flinders Drive
BEDFORD PARK
SA 5042
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
257577
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Address [1]
257577
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Country [1]
257577
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
260413
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The Southern Adelaide Health Service / Flinders University Human Research Ethics Committee
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Ethics committee address [1]
260413
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Human Research Ethics
Southern Adelaide Health Service
SA Health
Room 2A221 - Inside Human Resources
Flinders Medical Centre
1 Flinders Drive
Bedford Park SA 5042
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Ethics committee country [1]
260413
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Australia
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Date submitted for ethics approval [1]
260413
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18/01/2011
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Approval date [1]
260413
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28/01/2011
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Ethics approval number [1]
260413
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22/11/2011
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Summary
Brief summary
This research project composes of collecting echocardiographic and cardiac MRI (CMR) data on two populations of patients; those with severe aortic stenosis and those with systemic hypertension and comparing them to healthy subjects. We would like to use the data collected on these two cohorts of patients to look at 2 dimensional strain imaging, tissue Doppler imaging, three dimensional volumes and myocardial fibrosis. By using these advanced imaging techniques we can evaluate and quantify left ventricular (LV) hypertrophy and myocardial characteristics. This may give us a better understanding of cardiac remodelling and the function of the heart muscle in each of these disease states. We hypothesise that differences in myocardial function and tissue characterisation detected by these imaging techniques may be detected in patients aortic stenosis and hypertension with similar degrees of LV hypertrophy.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Kate Schwartz
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Address
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Flinders Clinical Research
Level 3A
Mark Oliphant Building
Laffer Drive
BEDFORD PARK
SA 5042
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Country
15417
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Australia
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Phone
15417
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+61 8 8201 7700
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Fax
15417
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+61 8 8201 7701
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Email
15417
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[email protected]
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Contact person for scientific queries
Name
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Amy Penhall
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Address
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Department Cardiovascular Investigations
Flinders Medical Centre
1 Flinders Drive
BEDFORD PARK
SA 5042
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Country
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Australia
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Phone
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+61 8 8404 2004
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Fax
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Email
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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