Intraoperative cell salvage is commonly used in cardiac surgery to reduce the administration of allogeneic red blood cells and thus improve the outcome for the patient. When processing the salvaged blood, however, a large part of the patient's plasma is washed out. This is a disadvantage with regard to an optimal coagulation situation after cardiac surgery. There are currently various cell saver systems on the market. According to the manufacturers, the plasma is returned to the patient in different quantities as part of the processing procedure. Thus, it can be assumed that in addition to red blood cells, platelets (part of plasma) are retransfused and contribute to an optimized coagulation. Unfortunately, there is a lack of studies in this regard in the cardiac surgery population. The investigators aim to study the performance of two different cell saver devices regarding preservation of platelet number and function.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
40
In addition to standard procedures in this patient population, study participants will receive point-of-care analysis of platelet function and coagulation (laboratory analysis and viscoelastic tests, if not already provided by the responsible anesthesiologist) based on the clinical situation, at different time points before and after retransfusion of processed cell salvage blood.
In addition to standard procedures in this patient population, study participants will receive point-of-care analysis of platelet function and coagulation (laboratory analysis and viscoelastic tests, if not already provided by the responsible anesthesiologist) based on the clinical situation, at different time points before and after retransfusion of processed cell salvage blood.
Department of Anesthesiology and Pain Medicine
Bern, Switzerland
RECRUITINGPlatelet number
Platelet number as measured by flow cytometry after processing and retransfusion of the salvaged blood to the patient.
Time frame: Perioperative period (begins on the day of surgery and ends on the day after surgery)
Platelet function measured by multiple electrode aggregometry
Platelet function, as measured by point-of-care test
Time frame: Perioperative period (begins on the day of surgery and ends on the day after surgery)
Platelet function measured by platelet activation markers (P-selectin)
Platelet function, as measured by point-of-care test
Time frame: Perioperative period (begins on the day of surgery and ends on the day after surgery)
Platelet function measured by platelet activation markers (GPIb and GPIIb)
Platelet function, as measured by point-of-care test
Time frame: Perioperative period (begins on the day of surgery and ends on the day after surgery)
Platelet function measured with viscoelastic point-of-care test (Clotpro)
Platelet function, measured by point-of-care test using ExTest und FibTest assays with viscoelastic point-of-care test device
Time frame: Perioperative period (begins on the day of surgery and ends on the day after surgery)
Platelet function measured with viscoelastic point-of-care test (ROTEM)
Platelet function, measured by point-of-care test using ExTEM und FibTEM assays with viscoelastic point-of-care test device
Time frame: Perioperative period (begins on the day of surgery and ends on the day after surgery)
Number of allogeneic blood products transfused
Number of allogeneic blood products used (red blood cell, fresh frozen)
Time frame: Perioperative period (begins on the day of surgery and ends on the day after surgery)
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