Postoperative inflammatory complications due to raised endotoxin levels. Surgery Complications of cardiac and vascular prosthetic devices, implants and grafts
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age >18 years, both male and female 2. Patients scheduled for elective complex combined cardiac surgery using CPB 3. Patients scheduled to have cardiac surgery with estimated CPB time in excess of 60 minutes 4. Informed consent
Exclusion criteria
Exclusion criteria: 1. Planned hypothermia (core temperature <28°C) during surgery 2. Use of steroids in last six months 3. Undergoing immunosuppressive therapy 4. Anaemia (preoperative haemoglobin <10 g/dL) 5. Haematological malignancy 6. Disease of the immune system 7. Female patients of childbearing age 8. Participation in another clinical trial
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Endotoxin (lipopolysaccharide [LPS]) 2. Interleukin-1 (IL1), IL4, IL6, IL8 and IL10 3. Tumor necrosis factor (TNF)-alpha The above are assessed at the following timepoints: t0: After anaesthesia before CPB t60: 60 minutes after the start of CPB t180: 180 minutes after the start of CPB t360: 360 minutes after the start of CPB tPOST: 24 hours after the start of CPB (+/- 1 hour) | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. White blood cells (WBC) 2. Red blood cells (RBC) 3. Haemoglobin (Hb) 4. Hematocrit (HCT) 5. Platelet count, 6. C-reactive protein (CRP) 7. Complement activation 8. Creatinine 9. Blood glucose levels 10. Lactate 11. Thromboelastography (TEG®) 12. Record of mixed venous oxygen saturation (SvO2) during CPB 13. Length of intensive care unit (ICU) stay 14. Adverse events (AEs), recorded untill time point tPOST (with a follow-up made to R&D if continue longer than tPOST) Timepoints of assessment for outcomes 1-12 above: t0: After anaesthesia before CPB t60: 60 minutes after the start of CPB (except CRP, creatinine and TEG®) t180: 180 minutes after the start of CPB (except CRP, creatinine and TEG®) t360: 360 minutes after the start of CPB tPOST: 24 hours after the start of CPB (+/- 1 hour) | — |
Countries
United Kingdom