This is a single center prospective observational study to compare QPlus parameter measurements in arterial and venous blood samples collected in parallel from patients undergoing cardiac surgery.
In this single center prospective observational study, 40 cardiac surgery subjects will enrolled, each with parallel artrial and venous samples collected at 3 time points to yield 120 matched samples for analysis on the Quantra System with the QPlus Cartridge.
Study Type
OBSERVATIONAL
Enrollment
50
Whole blood coagulation testing system
Ohio State University Wexner Medical Center
Columbus, Ohio, United States
Comparison of QPlus Clot time (CT) in arterial and venous samples
Coagulation function assessed in two sample types
Time frame: During cardiac surgery
Comparison of QPlus Clot time with Heparinase (CTH) in arterial and venous samples
Coagulation function assessed in two sample types
Time frame: During cardiac surgery
Comparison of Clot stiffness (CS) determined with Quantra QPlus Cartridge in arterial and venous samples
Measure of the overall shear modulus or strength/quality of the clot determined using SEER sonorheometry assessed in two sample types
Time frame: During cardiac surgery
Comparison of QPlus Platelet Contribution to Clot stiffness (PCS) in arterial and venous samples
Measure of the shear modulus or strength/quality of the clot contributed by platelets determined using SEER sonorheometry assessed in two sample types
Time frame: During cardiac surgery
Comparison of QPlus Fibrinogen Contribution to Clot stiffness (FCS) in arterial and venous samples
Measure of the shear modulus or strength/quality of the clot contributed by fibrinogen determined using SEER sonorheometry assessed in two sample types
Time frame: During cardiac surgery
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