Unmasking the dynAmic Component in functionaL mitraL rEGuRgitatiOn in Chronic Heart Failure
NCT ID: NCT03315429
Last Updated: 2017-11-06
Study Results
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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UNKNOWN
NA
150 participants
INTERVENTIONAL
2017-11-01
2021-10-31
Brief Summary
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Chronic heart failure (HF) is frequently accompanied by functional mitral regurgitation (FMR) caused by left ventricular (LV) remodeling and subsequent papillary muscle displacement resulting in mitral valve (MV) leaflet tethering, dilatation and flattening of the mitral annulus and reduced closing forces. Up to moderate FMR affects the majority of patients with systolic heart failure - roughly 80% - still independently increasing mortality. Every fifth patient with chronic heart failure experiences a progression of FMR during the first three years of follow up despite guideline directed heart failure therapy, which is independently associated with a poor prognosis. Furthermore, MR is well known to have a strong dynamic component not only during the cardiac cycle at rest and with exercise.
Aims of the study:
The investigators therefore aim to assess whether stress tests in patients with functional mitral regurgitation unmasks significant dynamic mitral regurgitation or might aid to identify patients at risk of FMR progression in patients with functional mitral regurgitation in heart failure with reduced ejection fraction (HFrEF) under guideline directed medical therapy.
Study design:
The investigators will prospectively perform stress tests in all patients with non-severe FMR that are routinely seen in the heart failure outpatient clinic.
Study patients:
Patients with stable chronic heart failure on optimal medical therapy, who undergo routine ambulatory clinical control visits in the heart failure outpatient ward of the Medical University of Vienna, will be included in the present study. A written informed consent will be obtained before inclusion. Inclusion criteria will be a non-severe FMR, an age of at least 18 years and stable heart failure related medical therapy in the last 3 months.
Methods:
All patients that are willing to participate will undergo stress testing (i.e. volume challenge and low dose dobutamine stress) to determine whether patients display severe dynamic FMR under stress conditions. Within the registry patients will be followed-up during routine ambulatory visits for three years. Patients with severe dynamic functional mitral regurgitation will be compared to patients without severe dynamic FMR. Record of clinical events during the FUP will be performed. Routine laboratory parameters, have been measured at inclusion. Additionally, neurohormone patterns will be measured at baseline and at peak stress.
Sample size:
Expecting a prevalence of severe dynamic FMR of 20%, the investigators would include a total of 150 chronic heart failure patients taking also into account a study-dropouts of 20% ( loss of follow-up and mortality).
Detailed Description
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Conditions
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Study Design
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NA
SINGLE_GROUP
DIAGNOSTIC
NONE
Study Groups
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Stress testing arm
Stress testing of patients with functional mitral regurgitation.
stress echocardiography
stress testing of patients with functional mitral regurgitation
Interventions
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stress echocardiography
stress testing of patients with functional mitral regurgitation
Eligibility Criteria
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Inclusion Criteria
* age of at least 18 years,
* stable heart failure related medical therapy in the last 3 months.
Exclusion Criteria
* myocardial infarction,
* cardiac decompensation within the last 3 months,
* pregnancy,
* life expectancy of less than 1 year for non cardiac reasons.
18 Years
ALL
No
Sponsors
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Medical University of Vienna
OTHER
Responsible Party
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Georg Goliasch
Asc.Prof. Priv.Doz. Dr., PhD
Locations
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Medical University of Vienna
Vienna, , Austria
Countries
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Central Contacts
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Facility Contacts
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Georg Goliasch, MD, PhD
Role: primary
Other Identifiers
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1590/2017
Identifier Type: -
Identifier Source: org_study_id