Study of the Implantable Cardioverter Defibrillator (ICD) Intracardiac Electrograms

Completed

Conditions studied: Congestive Heart Failure, Sudden Cardiac Death, Arrhythmia, Cardiomyopathies

In brief

The purpose of this study is to determine whether waveforms of the intracardiac electrograms, acquired through an ICD, can be used: * to predict malignant ventricular arrhythmias, requiring appropriate ICD therapies, and * to predict progression of heart failure in patients with ICD.

Key facts

Study ID

NCT00916435

Run by

Johns Hopkins University

People needed

630

Starts

2005-03-01

Expected to finish

2011-12-01

Last updated by the study team

2015-04-21

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• history of acute MI at least 4 weeks old
• non-ischemic LV dysfunction for at least 9 months
• who have an EF < or = to 35%
• who was resuscitated from sudden cardiac arrest (ventricular tachyarrhythmia)
• undergone implantation of an FDA-approved ICD for primary or secondary prevention of SCD

You may not qualify if…

• inability or unwillingness to provide valid informed consent
• pregnancy
• any condition other than cardiac disease that was associated with a high likelihood of death during 1 year after enrollment

Where it is running

• Johns Hopkins University School of Medicine — Baltimore, Maryland, United States
• Washington University School of Medicine — St Louis, Missouri, United States

Full record on ClinicalTrials.gov

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