About this trial
Sudden cardiac death is a tragic event that strikes all age groups and is unfortunately increasing in prevalence. Because it is difficult to predict those at highest risk, this study is designed to test the hypothesis that new imaging techniques (magnetic resonance imaging \[MRI\] and computed tomography \[CT\]) are useful for identifying factors which put people at high risk for sudden death.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Left ventricular ejection fraction <or = 35%
Planned implantable cardioverter-defibrillator (ICD) implantation for clinical indications (primary prevention)
Disqualifiers
History of sudden death (secondary prevention)
Contraindication to undergoing MRI (metallic implant, pacemaker, etc.)
Trial population
Patients with contractile dysfunction (EF\< or = 35%) on an ischemic or non-ischemic basis undergoing clinically-indicated ICD implantation for primary prevention of sudden cardiac death (SCD)
Trial design
Other
Prospective
Treatments tested in this trial
Not listed
Trial groups
Trial outcomes
Primary outcomes
sudden cardiac death
cardiovascular death
appropriate ICD discharge
composite sudden cardiac death and appropriate ICD discharge
Secondary outcomes
heart failure admission
Other outcomes
cardiac transplantation
myocardial revascularization
left ventricular assist device placement
biventricular pacemaker placement
Sponsors and contacts
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Johns Hopkins University
Lead sponsor
Donald W. Reynolds Foundation
Collaborator