ArticleTrauma surgery & acute care open2024
Using microfluidic shear to assess transfusion requirements in trauma patients.
Article in Trauma surgery & acute care open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Utility of point-of-care platelet aggregation testing for transfusion prediction.Scientific reports · 2026Article
- Platelet clotting defects in severe trauma identified by a whole blood microfluidic assay.Transfusion · 2026Article
- Elevated cell-free hemoglobin: A novel early biomarker following traumatic injury.The journal of trauma and acute care surgery · 2025Article
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Authors and funding
11 authors.
Funding
Abstract
Background: Viscoelastic assays have widely been used for evaluating coagulopathies but lack the addition of shear stress important to Methods: Blood samples were collected on adult trauma patients from a single-institution prospective cohort study of high-level activations. Patient and injury characteristics, transfusion data, and outcomes were collected. Thromboelastography, coagulation studies, and Stasys assays were run on paired samples collected at admission. Stasys CA and PCFs were quantified as area under the curve calculations and maximum values. Normal ranges for Stasys assays were determined using healthy donors. Data were compared using Kruskal-Wallis tests and simple linear regression. Results: From March 2021 to January 2023, 108 samples were obtained. Median age was 37.5 (IQR 27.5-52) years; patients were 77% male. 71% suffered blunt trauma, 26% had an Injury Severity Score of ≥25. An elevated international normalized ratio significantly correlated with decreased cumulative PCF (p=0.05), maximum PCF (p=0.05) and CA (p=0.02). Lower cumulative PCF significantly correlated with transfusion of any products at 6 and 24 hours (p=0.04 and p=0.05) as well as packed red blood cells (pRBCs) at 6 and 24 hours (p=0.04 and p=0.03). A decreased maximum PCF showed significant correlation with receiving any transfusion at 6 (p=0.04) and 24 hours (p=0.02) as well as transfusion of pRBCs, fresh frozen plasma, and platelets in the first 6 hours (p=0.03, p=0.03, p=0.03, respectively). Conclusions: Assessing coagulopathy in real time remains challenging in trauma patients. In this pilot study, we demonstrated that microfluidic approaches incorporating shear stress could predict transfusion requirements at time of admission as well as requirements in the first 24 hours. Level of evidence: Level II.
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