- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00657475
Coronary Bypass and Artotic Leaflet Surgery : Heparin Low Dose vs Full Dose (APPACHES)
A Prospective Study of Coronary Artery Bypass Graft and/or Aortic Valve Replacement With Conventional Versus Half Heparin Dose Under Closed and Coated Extra Corporeal Circulation System (MECC) - APPACHES Study.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Usually management of conventional extra corporeal circulation takes place under a loading heparin dose of 300 IU / kg to achieve an ACT (activating clotting time) target more than 400 seconds. This empirical approach based on patient weight date from the 1960's and does not take into account materials improvement and different individual sensitivities; several studies have demonstrated than a result at least as effective could be obtained with heparin lower doses, and without increasing thromboembolic morbid events for patients.
Patients are randomly assigned into one of 2 groups one day before surgery. First group receive unfractionated heparin conventional dose during the MECC, second group receive half of the conventional dose. All surgery is performed by the same team and using same equipment. Regular blood tests are carried out before, during and after surgery. Blood loss, transfusion needs, rhythm disorders, stay duration in intensive care and total hospitalization length is finally reported. The follow-up period through the 30th postoperative day.
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
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Bordeaux, France, 33000
- Cardiac Surgery Dpt (University Hospital)
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- single or multiple coronary bypass
- written and informed consent
- repair or replacement of artic leaflet
- platelet suppressive agents stopped since at least 7 days
- anticoagulants stopped since at least 3 days
Exclusion Criteria:
- Thoracic surgery antecedent
- ASA 4
- carotid stenosis > 75%
- Hb < 10,5 g/l
- chronic hepatic failure
- thromboembolic antecedent
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 2
Cardiac surgery with Mini Extra Corporeal Circulation (MECC).
Heparin low dose (150 UI/Kg).
|
Loading heparin dose of 150 IU / kg to achieve an ACT (activating clotting time) target more than 240 seconds.
|
Active Comparator: 1
Cardiac surgery with Mini Extra Corporeal Circulation (MECC).
Heparin Full Dose (300 UI/Kg)
|
Loading heparin dose of 300 IU / kg to achieve an ACT (activating clotting time) target more than 400 seconds.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Blood loss
Time Frame: Peroperative and postoperative until redon's suction drainage ablation
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Peroperative and postoperative until redon's suction drainage ablation
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Blood transfusion
Time Frame: Per & postoperative
|
Per & postoperative
|
Use of intropic drugs (posology)
Time Frame: Postoperative
|
Postoperative
|
Kidney function(urea, creatininemia)
Time Frame: Postoperative
|
Postoperative
|
Peroperative hemodynamic data
Time Frame: Peroperative
|
Peroperative
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Xavier ROQUES, PhD, University Hospital, Bordeaux
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CHUBX 2007/19
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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