Thromboprophylaxis after coronary artery bypass graft surgery
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Age: 18 to 90 years BMI between 18-33 kg/m2 Elective on-pump CABG operation Indication for post-operative pharmacological thromboprophylaxis Written informed consent obtained from the patient or his/her legal representative Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 80 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 80
Exclusion criteria
Exclusion criteria: -Other indications for anticoagulant therapy than thromboprophylaxis -Known heparin induced thrombocytopenia (HIT), or hypersensitivity to enoxaparin or heparin -Any long-term anticoagulant medication, expect low-dose aspirin -Major bleeding within the last week unless definitively treated Blood platelet count 1.7 -GFR less than 30 ml/min/1.73 m2 estimated from serum creatinine by applying Cockcroft–Gault equation 13 or chronic dialysis Known HIV, HBV, or HCV infection Pregnancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: To evaluate the pharmacokinetics of the thromboprophylactic agent enoxaparin in postoperative cardiac surgery patients by comparing plasma anti-Xa activity when enoxaparin is administered either as a continuous intravenous infusion or subcutaneous bolus once or twice daily.;Secondary Objective: To investigate possible overall coagulation status of CABG patients with rotational thromboelastometry (ROTEM) and show starting thromboprophylaxis 6-10 h after the end of operation is safe. ;Primary end point(s): Maximal enoxaparin concentration;Timepoint(s) of evaluation of this end point: 3 hours after the onset of study drug | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): mortality 90 d, bleeding (E-CABG bleeding score) or venous thromboembolism (compression ultrasound on a day 3) ROTEM samples at 3 and 12 h after the beginning of the enoxaparin administration;Timepoint(s) of evaluation of this end point: 90 days after study period | — |
Countries
Finland
Contacts
Tampere Heart Hospital