Blood Loss, Surgical
Conditions
Keywords
Viscoelastic testing, Coagulation, Quantra, Hemostasis
Brief summary
This study will evaluate the performance of the Quantra System comprised of the Quantra Hemostasis Analyzer with the Quantra Surgical Cartridge in patients undergoing major surgical procedures specifically, major cardiac and vascular procedures and major orthopedic surgery (primarily complex spine surgeries).
Detailed description
The Quantra System is a fully integrated and automated in vitro diagnostic device which uses SEER Sonorheometry, an ultrasound-based technology, to characterize the viscoelastic properties of a whole blood sample during coagulation. The Quantra Surgical Cartridge was developed to monitor hemostasis during major surgical procedures in adult patients. The cartridge consists of four independent channels each containing different sets of reagents, which provide four measurements performed in parallel yielding six parameters that depict the functional status of a patient's coagulation system. This multi-center, prospective, observational study will evaluate the performance of the Quantra System as compared to standard coagulation tests and comparable measures determined using the ROTEM Delta.
Interventions
DIAGNOSTIC_TESTQuantra System
Diagnostic device to monitor coagulation properties of a whole blood sample at the point-of-care.
Sponsors
HemoSonics LLC
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Subject is ≥18 years * Subject is scheduled for either 1) cardiac or vascular surgery utilizing cardiopulmonary bypass (CPB) or 2) orthopedic surgery including major deformity correction spine surgery * Subject has a cardiac assist device and is hospitalized for any procedure * Subject underwent cardiac, vascular or orthopedic surgery and presents with acute bleeding or suspected hypercoagulability in a post-surgical unit * Subject is undergoing emergency cardiac, vascular or orthopedic surgery * Subject is willing to participate and he/she has signed a consent form
Exclusion criteria
* Subject is unable to provide written informed consent * Subject is younger than 18 years * Subject is incarcerated at the time of the study * Subject is pregnant * Subject is currently enrolled in a study that might confound the result of the proposed study * Subject is affected by a condition that, in the opinion of the surgical team, may pose additional risks
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Comparison of Quantra Clot Time and Clot Stiffness results to standard coagulation test results | Baseline, during surgery, and up to 24 hours post-surgery | Coagulation function assessed by Quantra and standard coagulation tests |
| Comparison of Quantra Clot Time and Clot Stiffness results to comparable ROTEM Delta results | Baseline, during surgery, and up to 24 hours post-surgery | Coagulation function assessed by Quantra and ROTEM Delta |
Countries
United States
Outcome results
None listed