Ventricular Arrhythmias Clinical Trial
Official title:
Ultra High Resolution CT to Assess Role of Intramyocardial Fat and Delayed Enhancement in Ventricular Arrhythmogenesis
Verified date | January 2024 |
Source | Johns Hopkins University |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
This research is being done to determine how well cardiac computed tomography (CT) scanning measures of fat within the heart can predict abnormal heart rhythms and how well cardiac CT can measure scar within the heart versus cardiac magnetic resonance imaging (MRI). - People who have been enrolled in PROSe-ICD (NA_00045142) and Reynolds (NA_00037404) studies may join - The procedures, tests, drugs or devices that are part of this research and will be paid for by the study
Status | Enrolling by invitation |
Enrollment | 110 |
Est. completion date | May 2026 |
Est. primary completion date | May 2025 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years to 85 Years |
Eligibility | Inclusion Criteria: - Patients aged 18 or older with history of ischemic cardiomyopathy enrolled in the current Reynolds study or PROSe-ICD study will be asked to participate - Women of child bearing potential must demonstrate a negative pregnancy test within 24 hours of the study CT - Ability to understand and willingness to sign the Informed Consent Form Exclusion Criteria: - Known allergy to iodinated contrast media - Patients with glomerular filtration rate (GFR) = 30 mL/min will not be enrolled in the study due to the use of intravenous iodinated contrast agents - Atrial fibrillation or uncontrolled tachyarrhythmia - Evidence of severe symptomatic heart failure (NYHA Class III or IV) |
Country | Name | City | State |
---|---|---|---|
United States | Johns Hopkins Medical Institute | Baltimore | Maryland |
Lead Sponsor | Collaborator |
---|---|
Johns Hopkins University | Canon Medical Systems, USA |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Prevalence of intramyocardial fat in patients with ischemic heart disease | The primary aim is to test whether intramyocardial fat on MDCT is as effective or adds additional utility to risk stratification for VA above that of CMR-LGE characteristics in ischemic cardiomyopathy patients who are candidates for ICD therapy or have in situ ICDs.
Our objective is to define the prevalence and distribution of intramyocardial fat in patients with ischemic heart disease scheduled for or with in-situ implantable defibrillators. Further, we aim to assess the independent association of intramyocardial fat with VA and determine whether it adds any utility above LGE measured by CMR. |
2 years | |
Primary | Prevalence of delayed enhanced CT detected scar | Comparison of the scar distribution on delayed enhanced CT with LGE on cardiac MRI.
The significance of our research is that we will test whether delayed enhanced CT can be used as a non-invasive tool for sudden cardiac death risk stratification in patients with ischemic heart disease and whether delayed enhancement CT is comparable to the current non-invasive gold standard of CMR for identifying myocardial scar. |
2 years | |
Primary | Quantification of delayed enhanced CT detected scar | Comparison of the scar distribution on delayed enhanced CT with LGE on cardiac MRI.
The significance of our research is that we will test whether delayed enhanced CT can be used as a non-invasive tool for sudden cardiac death risk stratification in patients with ischemic heart disease and whether delayed enhancement CT is comparable to the current non-invasive gold standard of CMR for identifying myocardial scar. |
2 years |
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