Prospective Observational Study of the ICD in Sudden Cardiac Death Prevention

Age: 18 years to 85 years old

Healthy Volunteers:

This study is NOT accepting healthy volunteers

Inclusion Criteria:

* History of acute MI at least 4 weeks old * Non-ischemic LV dysfunction for at least 9 months * Who have an ejection fraction (EF) \< or = to 35% * Undergone elective replacement indicator (ERI) generator replacement of an FDA-approved ICD for primary prevention of SCD within 24 months of enrollment. * Who have primary prevention implants.

Exclusion Criteria:

* ICD generator replacement for secondary prevention * Inability or unwillingness to provide valid informed consent * New York Heart Association Class IV heart failure * Patients with pre-existing Class 1 indications for pacemaker therapy.

Conditions:

Heart Failure, Congestive, Death, Sudden, Cardiac, Arrhythmia, Cardiomyopathies

Keywords:

defibrillator, implanted, genomics, electrocardiography, electrophysiological study, proteomics

Contact(s): Katherine Wu, MD - kwu@jhmi.edu

Principal Investigator:

Phase:

IRB Number:

System ID: NCT00733590

See this study on ClinicalTrials.gov

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Prospective Observational Study of the ICD in Sudden Cardiac Death Prevention

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