An interventional study of T Wave Alternans Test in Myocardial Infarction, Arrhythmia, Ventricular and Ischemic Cardiomyopathy, sponsored by Medtronic Cardiac Rhythm and Heart Failure. Completed at 47 sites in United States. Per ClinicalTrials.gov, last updated 2008-02-13.
Sponsored by Medtronic Cardiac Rhythm and Heart Failure · Not applicable, Interventional, and Diagnostic
The purpose of the study is to determine the usefulness of microvolt T wave alternans (MTWA) testing of patients that have had a heart attack and have decreased pumping ability of the lower chamber of their heart. MTWA testing is a non-invasive test used to detect the likelihood of developing abnormally fast rhythms in the lower chambers of the heart. The objective of the study is to prove that if a patient has a negative MTWA test, they will be less likely to develop abnormally fast and dangerous rhythms in the lower chambers of the heart. The results of the study will help doctors to determine which patients would benefit the most from having an Implantable Cardioverter Defibrillator (ICD) implanted.
2,744 studies on the registry are indexed under Myocardial Infarction; 418 are open to participants now.
This study's enrollment of 656 is above the median of 148 across 1,595 interventional studies indexed under Myocardial Infarction.
Browse Myocardial Infarction studies →Medtronic Cardiac Rhythm and Heart Failure is the lead sponsor of 239 studies on the registry; 6 are open to participants now.
Of its 19 completed or terminated interventional studies of FDA-regulated products, 17 (89%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Demonstrate that the life-threatening ventricular tachyarrhythmic event-free survival probability is greater in patients with a baseline MTWA Negative result as compared to patients with a baseline MTWA Non-Negative (Positive or Indeterminate) result.
Compare occurrence of all ventricular events between both groups
Identify predictors of life threatening ventricular arrhythmias
Calculate occurrence of life threatening ventricular arrhythmias based on last MTWA results
This study is completed, as verified in Feb 2008. You cannot join it, but the record below documents what was studied.
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Medtronic Cardiac Rhythm and Heart Failure