- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02685371
Septal Shift for the Diagnosis of COnstrictive Pericarditis: The Impact of Inspiratory Effort Quantification on Deep Breathing Manoeuvres (SCOPED)
September 1, 2018 updated by: Paul Farand, Université de Sherbrooke
Septal Shift for the Diagnosis of COnstrictive Pericarditis: The Impact of Inspiratory Effort Quantification on Deep Breathing Manoeuvres (SCOPED)
This study will evaluate the effect of deep breathing manoeuvres on inter ventricular interdependency physiology.
By providing further insight in this basic physiology we want to add more comprehensive data in favor or not of constrictive pericarditis diagnostic criteria currently used in cardiovascular magnetic resonance.
Study Overview
Study Type
Observational
Enrollment (Anticipated)
60
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
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Quebec
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Sherbrooke, Quebec, Canada, J1H 5N4
- Recruiting
- Paul
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Contact:
- Paul Farand, MD
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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
18 years to 80 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Population consists of healthy subjects not know for any cardiovascular disease.
Description
Inclusion Criteria:
- Men and women between 18 and 80 years old
- Normal transthoracic echocardiogram if older than 41 years old
- Normal standardized history and physical examination
- Normal blood pressure (<130/80)
- Normal 12-lead ECG at rest.
Exclusion Criteria:
- No prior pulmonary or cardiac diseases
- Unexplained symptoms that could be related to a heart or pulmonary problems.
- Symptoms of or active cardiovascular or pulmonary problems
- Hepatic or kidney dysfunction
- Blood cell dyscrasia
- Cardiovascular risk factor (smoking, hypertension, dyslipidemia, diabetes)
- Obesity (BMI > 30)
- Pregnancy or pregnancy in the last year
- Cardiac congenital anomalies discovered during the cardiovascular magnetic resonance
- Current medication with cardiovascular side effects known (diuretics, beta-blockers, calcium channel blockers)
- Contraindication to cardiovascular magnetic resonance
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
- Observational Models: Case-Only
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Breathing effort type
Current known criteria for constrictive pericarditis will be test under: 1- spontaneous breathing 2- Breathing with a negative pressure of -15 to - 30 cm of water 3- Breathing with a negative pressure of more than - 30 cm of water.
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Subjects will have to breath 1- Spontaneously 2- to produce a negative pressure of -15 to -30 cm of water and 3- to produce a negative pressure more than -30 cm of water.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Measurement of the interventricular septum position between inspiration and expiration as assessed by CMR.
Time Frame: Immediate
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Analysis of respiratory-related septal excursion.
The relative position of the septum can be obtained by dividing the distance between RV free wall and septum by the biventricular distance.
If done during inspiration and expiration, at early ventricular filling, the respiratory-related septal excursion can be quantified.
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Immediate
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Presence or absence (categorical variable) of a diastolic bounce as assessed by CMR.
Time Frame: Immediate
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Diastolic bounce corresponds to a displacement of inter ventricular septum towards de left ventricle during the protodiastolic period.
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Immediate
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Measurement of the variation of flow through the mitral and tricuspid valve between inspiration and expiration as assessed by CMR.
Time Frame: Immediate
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Real-Time Phase-Contrast acquisition using a custom-made sequence with through-plane velocity encoding to simultaneously measure MV and TV inflow velocities by prescribing a slice position across both atrioventricular valves from a horizontal long-axis view.
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Immediate
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Biventricular Index: measurement of the heart contour between inspiration and expiration as assessed by CMR.
Time Frame: Immediate
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Short axis cross section through the mid ventricle.
The epicardial tracings is performed in end expiration and end inspiration.
The end inspiratory epicardial tracing is divided by the end expiratory epicardial tracing to obtain the biventricular index
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Immediate
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Presence or absence (categorical variable) of diastolic flow reversal in inferior vein cave as assessed by cardiovascular magnetic resonance (CMR).
Time Frame: Immediate
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Real-time cine imaging of the inferior vein cave for 10 s
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Immediate
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Presence or Absence of lack of myocardial slippage in relation to the pericardium as assessed by CMR (tagging sequence)
Time Frame: Immediate
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Four-chamber tagged cardiac magnetic resonance image showing lack of slippage between parietal and visceral pericardia.
The tag lines break between parietal and visceral pericardia during the cardiac cycle in a normal heart.
In constrictive pericarditis, the tag lines do not break.
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Immediate
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Measurement of the relative atrial volume ratio as assessed by CMR.
Time Frame: Immediate.
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The relative atrial volume ratio (RAR) is defined as the left auricular (LA) volume divided by right auricular (RA) volume.
For the LA volume, the biplane area- length method will be used.
For the RA volume, the monoplane area-length formula will be used.
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Immediate.
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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 Major Dates
Study Start
September 1, 2016
Primary Completion (Anticipated)
February 1, 2020
Study Completion
February 1, 2020
Study Registration Dates
First Submitted
January 13, 2016
First Submitted That Met QC Criteria
February 12, 2016
First Posted (Estimate)
February 18, 2016
Study Record Updates
Last Update Posted (Actual)
September 5, 2018
Last Update Submitted That Met QC Criteria
September 1, 2018
Last Verified
September 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- MP-31-2016-1083
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
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.
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