Pilot Study Using Echocardiography to Evaluate Patients With Heart Failure and Dyssynchrony Who Have a CRT-D Device

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Study Classification

OBSERVATIONAL

Study Start Date

2010-05-31

Study Completion Date

2011-05-31

Brief Summary

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Out of all the patients that receive a CRT-D ( a dual chamber pacemaker with defibrillator ) for cardiac resynchronization therapy there is approximately one-third that do not respond. We believe that by using a simple technique that includes routine echocardiography that are normally performed in these patients could help us better understand how to program their device to reach better optimization.

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Detailed Description

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Conditions

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Systolic Heart Failure

Study Design

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Study Time Perspective

PROSPECTIVE

Study Groups

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Systolic Heart Failure, Dyssynchrony, CRT-D

Patients with systolic heart failure and dyssynchrony that have a CRT-D that have not been optimized in the past 3 months.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1. Adults age 18-110 years
2. Must have a CRT-D (A biventricular pacemaker with defibrillator)
3. Last optimization of their device (CRT-D) must not have been done in the past 3 months
4. Must be optimal heart failure medical regimen. This includes target dose of beta-blocker and angiotensin converting enzyme inhibitor (ACE-I) (or equivalent; i.e angiotensin receptor blocker (ARB); or balanced preload and afterload reducers with hydralazine and nitrates.)

Exclusion Criteria

1. Less than 18 years of age or greater than 110 years old.
2. Does not have a CRT-D
3. Optimization of their device has occurred in the past 3 months

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No