Cardiac Allograft Vasculopathy Clinical Trial
— CAV-OCT-IVUSOfficial title:
Assessment of Cardiac Allograft Vasculopathy With Optical Coherence Tomography as Compared to Intravascular Ultrasound-Virtual Histology
Verified date | May 2014 |
Source | Mayo Clinic |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Institutional Review Board |
Study type | Observational |
Cardiac allograft vasculopathy (CAV) is a progressive disease of the coronary arteries in transplanted hearts which is a significant cause of morbidity and mortality. The broad objective of this research study is to advance our ability to diagnose as early as possible the presence of CAV and to non-invasively predict those patients at increased risk of CAV with novel techniques. Optical coherence tomography (OCT) is a novel intracoronary imaging technique using an optical analog of ultrasound with a resolution 10 times greater resolution than intravascular ultrasound (IVUS). Endothelial progenitor cells (EPCs) in peripheral blood have been shown to play a role in the pathogenesis of atherosclerosis and peripheral arterial tonometry is a clinical tool used to predict endothelial dysfunction (a precursor of atherosclerosis) which has been validated in non-transplant patients. Patients scheduled for routine cardiac catheterization with IVUS at the Mayo Clinic Rochester, Minnesota (MN) that reach inclusion and exclusion criteria for the study will be approached on the day to get informed consent to perform OCT, blood sampling and peripheral endothelial function testing. The investigators aim to 1) compare the frequency and plaque type of CAV as defined with OCT versus IVUS-Virtual Histology (IVUS-VH), 2) predict the presence and severity of CAV with absolute counts of EPCs and 3) with peripheral endothelial function scores.
Status | Completed |
Enrollment | 82 |
Est. completion date | August 2013 |
Est. primary completion date | August 2013 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - patients aged 18 or older - patients with cardiac transplant undergoing routine CAV surveillance Exclusion Criteria: - patients < 18 years old - patients with acute rejection - patients with active infection - patients with chronic renal insufficiency with a glomerular filtration rate (GFR) < 30ml/min - patients not able to give informed consent |
Observational Model: Case-Only, Time Perspective: Prospective
Country | Name | City | State |
---|---|---|---|
United States | Mayo Clinic | Rochester | Minnesota |
Lead Sponsor | Collaborator |
---|---|
Mayo Clinic | St. Jude Medical |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Characterize CAV in-vivo with OCT | 1 year | No | |
Secondary | Compare the frequency and plaque type of CAV as defined with OCT versus IVUS-VH | 1 year | No | |
Secondary | Predict the presence and severity of CAV with absolute counts of EPCs. | 1 year | No | |
Secondary | Predict the presence and severity of CAV with peripheral endothelial function scores | 1 year | No |
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