Biventricular Epicardial Pacing Post Cardiac Surgery in Patients With Left Ventricular Ejection Fractions Less Than 45%
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|ClinicalTrials.gov Identifier: NCT00604110|
Recruitment Status : Unknown
Verified January 2008 by University Hospital, Clermont-Ferrand.
Recruitment status was: Enrolling by invitation
First Posted : January 30, 2008
Last Update Posted : January 30, 2008
|Condition or disease||Intervention/treatment||Phase|
|Heart Failure||Other: Biventricular pacing post cardiac surgery||Phase 3|
Some patients with left ventricular systolic dysfunction (LVSD) have an inefficient pumping function. These patients have been shown to benefit from a device therapy known as biventricular pacing. Biventricular pacing causes a more coordinated contraction of the heart chambers resulting in improvement in the pumping ability of the heart and blood pressure. Cardiac Resynchronization Therapy (CRT) has established itself as a proven therapy for congestive heart failure in adults, patients showing improvement in exercise tolerance, quality of life, and survival.
In cardiac surgery, a significant number of these patients with left ventricular systolic dysfunction require postoperative pacing. Right ventricular pacing has been shown to be hemodynamically deleterious Whether biventricular pacing in patients with LVSD improves patient outcomes after heart surgery has not been investigated.
The aim of this crossover trial is to compare conventional ventricular pacing and DDD-biventricular in post operative patients with a pre operative ejection fraction less than 45%, in a prospective randomized setting.
We would like to determine whether biventricular pacing optimized by trans thoracic echocardiography of left ventricular, immediately after heart surgery in patients with LVSD will improve the heart function.
Immediately after surgery, the patients will receive atrio ventricular conventional right ventricular pacing, or biventricular pacing depending upon the treatment arm that they were randomized to.
The primary end point is a 15 % improvement in index cardiac measured by thermal dilution and/or echocardiography in intensive care unit.
Furthermore, Plasma N-terminal pro-brain natriuretic peptide (NT-proBNP), cardiac troponin T (cTnT), will be measured in patients undergoing elective cardiac surgery 12 h, 24 h, 48 h and 72 hours after.
This study is important because of a high probability of clinical benefit.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||12 participants|
|Intervention Model:||Crossover Assignment|
|Official Title:||Interest in Biventricular Epicardial Pacing Post Cardiac Surgery in Patients With Left Ventricular Ejection Fractions Less Than 45%|
|Study Start Date :||February 2008|
|Estimated Primary Completion Date :||September 2008|
|Estimated Study Completion Date :||October 2008|
Other: Biventricular pacing post cardiac surgery
- Determine whether biventricular pacing optimized by trans thoracic echocardiography of left ventricular will improve the heart function [ Time Frame: immediately after heart surgery in patients with LVSD ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00604110
|Clermont-Ferrand, Auvergne, France, 63003|
|Principal Investigator:||Charles De Riberolles, Pr|
|Principal Investigator:||Stéphane Combes, Dr|