Best Bypass Surgery (BBS) Trial

NCT ID: NCT00120991

Last Updated: 2008-03-03

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

UNKNOWN

Clinical Phase

PHASE3

Total Enrollment

341 participants

Study Classification

INTERVENTIONAL

Study Start Date

2002-04-30

Study Completion Date

2008-07-31

Brief Summary

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There is evidence linking cardiopulmonary bypass to negative side effects when used for coronary artery bypass grafting. Coronary artery bypass grafting can be performed without the use of cardiopulmonary bypass. The purpose of this study is to determine the positive and negative effects of coronary artery bypass grafting with or without the use of cardiopulmonary bypass. The patients will be followed at least one year after surgery.

Detailed Description

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Objectives:

To evaluate the beneficial and harmful effects of off-pump coronary artery bypass grafting (OPCAB) versus conventional coronary artery bypass grafting (CCABG) using a heart- and lung machine in patients with three-vessel coronary artery disease.

Trial population:

Consecutive patients \> 54 years of age with three-vessel coronary artery disease with EuroSCORE of 5-16 undergoing elective or sub-acute coronary artery bypass grafting, giving written informed consent, and where randomisation can be accomplished preoperatively. The study will include 330 patients.

Trial design:

The Best Bypass Surgery Trial (BBS Trial) is a randomised trial. Patients will be randomised to one of two groups. The randomisation will be 1:1, in blocks, stratified by gender, age (55 to 65 years; \> 65 years), diabetes mellitus, and EuroSCORE (5-7; 8-10; 11-13; 14-16). The patients will be randomised to OPCAB surgery or CCABG surgery.

The interventions:

In the OPCAB group, the revascularization procedure will be performed on the beating heart with a stabilizer to demobilize the target coronary arteries. When access is needed for posterior coronary arteries a suction device will lift the heart. In the CCABG group, the revascularization procedure will be performed with the use of a heart- and lung machine in normothermia, aortic cross clamp, and with cold cardioplegic arrest. In both groups, the left internal mammary artery and saphenous vein grafts are standard graft material.

Outcome measures:

The aim of the study is to examine the value of OPCAB revascularization compared to CCABG revascularization on the following outcome measures:

* Primary: The composite outcome measure of mortality (of all causes), acute myocardial infarction, cardiac arrest with successful resuscitation, low cardiac output syndrome, or major neurological deficit.
* Secondary: Hyper dynamic shock; atrial fibrillation, respiratory insufficiency requiring intubation \>24 hours , need for pacing \> 1 day due to 2º AV-blockage or nodal rhythm; renal complications, i.e., serum creatinine \> 200 μmol/l, or need for acute dialysis; re-operation for bleeding, pneumonia; serious adverse events; duration of stay in intensive care unit; duration of stay in the hospital; quality of life after 3 and 12 month; graft patency at one year postoperatively defined by coronary angiography. In addition, cognitive function will be assessed after three and 12 months in the first 120 patients randomized.

Conditions

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Heart Disease Cardiovascular Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Interventions

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Coronary artery bypass grafting

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Known ischemic three vessel heart disease affecting one of the marginal coronary arteries
* Age \> 54 years
* Scheduled for elective or subacute CABG
* EuroSCORE \> 4 and \< 17
* The patient has signed written informed consent before randomization and surgery.

Exclusion Criteria

* Previous heart surgery
* Ejection fraction \< 30 %
* Unstable preoperative condition, i.e., continuous infusion of inotropics on the day of the operation
* Patient unable to give informed consent.
Minimum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Danish Heart Foundation

OTHER

Sponsor Role collaborator

The Danish Medical Research Council

OTHER

Sponsor Role collaborator

Copenhagen Hospital Corporation

OTHER

Sponsor Role collaborator

Rigshospitalet, Denmark

OTHER

Sponsor Role lead

Responsible Party

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Rigshospitalet

Principal Investigators

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Christian H. Møller, MD

Role: PRINCIPAL_INVESTIGATOR

Dept. of Cardiothoracic Surgery and Copenhagen Trial Unit, Rigshospitalet, Copenhagen

Daniel A. Steinbrüchel, Professor

Role: STUDY_DIRECTOR

Dept. of Cardiothoracic Surgery, Rigshospitalet, Copenhagen

Christian Gluud, Consultant

Role: STUDY_CHAIR

Copenhagen Trial Unit, Rigshospitalet, Copenhagen

Jan K. Madsen, Consultant

Role: STUDY_CHAIR

Dept. of Cardiology, Amtssygehuset i Gentofte, Copenhagen

Locations

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Dept. Cardiothoracic Surgery, Rigshospitalet

Copenhagen, , Denmark

Site Status

Countries

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Denmark

References

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Moller CH, Perko MJ, Lund JT, Andersen LW, Kelbaek H, Madsen JK, Winkel P, Gluud C, Steinbruchel DA. Three-year follow-up in a subset of high-risk patients randomly assigned to off-pump versus on-pump coronary artery bypass surgery: the Best Bypass Surgery trial. Heart. 2011 Jun;97(11):907-13. doi: 10.1136/hrt.2010.211680. Epub 2011 Mar 17.

Reference Type DERIVED
PMID: 21415073 (View on PubMed)

Moller CH, Perko MJ, Lund JT, Andersen LW, Kelbaek H, Madsen JK, Winkel P, Gluud C, Steinbruchel DA. No major differences in 30-day outcomes in high-risk patients randomized to off-pump versus on-pump coronary bypass surgery: the best bypass surgery trial. Circulation. 2010 Feb 2;121(4):498-504. doi: 10.1161/CIRCULATIONAHA.109.880443. Epub 2010 Jan 18.

Reference Type DERIVED
PMID: 20083683 (View on PubMed)

Jensen BO, Rasmussen LS, Steinbruchel DA. Cognitive outcomes in elderly high-risk patients 1 year after off-pump versus on-pump coronary artery bypass grafting. A randomized trial. Eur J Cardiothorac Surg. 2008 Nov;34(5):1016-21. doi: 10.1016/j.ejcts.2008.07.053. Epub 2008 Sep 7.

Reference Type DERIVED
PMID: 18778948 (View on PubMed)

Other Identifiers

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2001-11-DP-83-RKF-22

Identifier Type: -

Identifier Source: org_study_id

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