Myocardial Flow Reserve in Severe AS Without Obstructive Coronary Artery Disease
NCT ID: NCT02575768
Last Updated: 2015-10-15
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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COMPLETED
104 participants
OBSERVATIONAL
2012-06-30
2015-04-30
Brief Summary
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This study aimed that adenosine-stress cardiac magnetic resonance can be used for the assessment of myocardial perfusion reserve and suggest the pathophysiology of development of angina in patients with severe AS without obstructive CAD.
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Detailed Description
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Conditions
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Study Design
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CASE_CONTROL
PROSPECTIVE
Study Groups
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Severe AS: asymptomatic
Asymptomatic
Adenosine-stress cardiac magnetic resonance imaging
undergoing adenosine-stress cardiac magnetic resonance imaging
Severe AS: pure angina
Presence of exertional chest pain
Adenosine-stress cardiac magnetic resonance imaging
undergoing adenosine-stress cardiac magnetic resonance imaging
Normal controls
Healthy controls
Adenosine-stress cardiac magnetic resonance imaging
undergoing adenosine-stress cardiac magnetic resonance imaging
Interventions
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Adenosine-stress cardiac magnetic resonance imaging
undergoing adenosine-stress cardiac magnetic resonance imaging
Eligibility Criteria
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Inclusion Criteria
2. normal LV ejection fraction (EF ≥ 50%)
Exclusion Criteria
2. LVEF \< 50% in echocardiography
3. concomitant other valvular disease of moderate or severe severity
4. previous aortic valve replacement
5. symptomatic patients other than chest pain
6. obstructive CAD (\>30% luminal stenosis in at least one coronary artery on coronary angiography)
7. history of myocardial infarction or acute coronary syndrome
8. contraindication to adenosine
9. any absolute contraindication to CMR
10. estimated glomerular filtration rate \<30 mL/min/1.73m2.
18 Years
ALL
Yes
Sponsors
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Samsung Medical Center
OTHER
Responsible Party
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References
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American College of Cardiology/American Heart Association Task Force on Practice Guidelines; Society of Cardiovascular Anesthesiologists; Society for Cardiovascular Angiography and Interventions; Society of Thoracic Surgeons; Bonow RO, Carabello BA, Kanu C, de Leon AC Jr, Faxon DP, Freed MD, Gaasch WH, Lytle BW, Nishimura RA, O'Gara PT, O'Rourke RA, Otto CM, Shah PM, Shanewise JS, Smith SC Jr, Jacobs AK, Adams CD, Anderson JL, Antman EM, Faxon DP, Fuster V, Halperin JL, Hiratzka LF, Hunt SA, Lytle BW, Nishimura R, Page RL, Riegel B. ACC/AHA 2006 guidelines for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (writing committee to revise the 1998 Guidelines for the Management of Patients With Valvular Heart Disease): developed in collaboration with the Society of Cardiovascular Anesthesiologists: endorsed by the Society for Cardiovascular Angiography and Interventions and the Society of Thoracic Surgeons. Circulation. 2006 Aug 1;114(5):e84-231. doi: 10.1161/CIRCULATIONAHA.106.176857. No abstract available.
Silaruks S, Clark D, Thinkhamrop B, Sia B, Buxton B, Tonkin A. Angina pectoris and coronary artery disease in severe isolated valvular aortic stenosis. Heart Lung Circ. 2001;10(1):14-23. doi: 10.1046/j.1444-2892.2001.00060.x.
Nishimura RA, Otto CM, Bonow RO, Carabello BA, Erwin JP 3rd, Guyton RA, O'Gara PT, Ruiz CE, Skubas NJ, Sorajja P, Sundt TM 3rd, Thomas JD; American College of Cardiology/American Heart Association Task Force on Practice Guidelines. 2014 AHA/ACC guideline for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol. 2014 Jun 10;63(22):e57-185. doi: 10.1016/j.jacc.2014.02.536. Epub 2014 Mar 3. No abstract available.
Ahn JH, Kim SM, Park SJ, Jeong DS, Woo MA, Jung SH, Lee SC, Park SW, Choe YH, Park PW, Oh JK. Coronary Microvascular Dysfunction as a Mechanism of Angina in Severe AS: Prospective Adenosine-Stress CMR Study. J Am Coll Cardiol. 2016 Mar 29;67(12):1412-1422. doi: 10.1016/j.jacc.2016.01.013.
Other Identifiers
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2012-01-014
Identifier Type: -
Identifier Source: org_study_id
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