Comparison of two viscoelastic testing devices in a porcine model of surgery, hemorrhage and resuscitation

Introduction: Viscoelastic hemostatic assays (VHA) are integral in contemporary hemostatic resuscitation, offering insights into clot formation, firmness, and lysis for rapid diagnosis and targeted therapy. Large animal models, particularly swine, provide anatomical and physiological analogies for c...

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Main Authors: Gruneberg, Daniel (Author) , Dietrich, Maximilian (Author) , Studier-Fischer, Alexander (Author) , Petersen, Clara (Author) , Forst, Maik von der (Author) , Özdemir, Berkin (Author) , Schöchl, Herbert (Author) , Nickel, Felix (Author) , Weigand, Markus A. (Author) , Schmitt, Felix (Author)
Format: Article (Journal)
Language:English
Published: 13 August 2024
In: Frontiers in Bioengineering and Biotechnology
Year: 2024, Volume: 12, Pages: 1-14
ISSN:2296-4185
DOI:10.3389/fbioe.2024.1417847
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.3389/fbioe.2024.1417847
Verlag, kostenfrei, Volltext: https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2024.1417847/full
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Author Notes:Daniel Gruneberg, Maximilian Dietrich, Alexander Studier-Fischer, Clara Petersen, Maik von der Forst, Berkin Özdemir, Herbert Schöchl, Felix Nickel, Markus A. Weigand and Felix C.F. Schmitt

MARC

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520 |a Introduction: Viscoelastic hemostatic assays (VHA) are integral in contemporary hemostatic resuscitation, offering insights into clot formation, firmness, and lysis for rapid diagnosis and targeted therapy. Large animal models, particularly swine, provide anatomical and physiological analogies for coagulation research. Despite the growing use of VHAs, the ClotPro® device’s applicability in porcine models remains unexplored. This study investigates ClotPro® in a porcine model of abdominal surgery, severe hemorrhage, and resuscitation, comparing it with the established ROTEM® delta system. Methods: Twenty-seven healthy pigs underwent abdominal surgery, hemorrhage and resuscitation. ClotPro® and ROTEM® were used to assess viscoelastic hemostatic properties at baseline, after surgery, 60 min after shock induction, 60 and 120 min after resuscitation. Results: Clotting times in extrinsically and intrinsically stimulated assays exhibited fair to moderate correlation. Clot firmness in extrinsically stimulated tests could be used interchangeably while fibrin polymerization assays revealed significant differences between the devices. Fibrin polymerization assays in ClotPro® consistently yielded higher values than ROTEM®. Furthermore, the study evaluated the ClotPro® TPA-test’s applicability in porcine blood, revealing failure of lysis induction in porcine blood samples. Conclusion: This research contributes valuable insights into the use of ClotPro® in porcine models of hemorrhage and coagulopathy, highlighting both its applicability and limitations in comparison to ROTEM® delta. The observed differences, especially in fibrin polymerization assays, emphasize the importance of understanding device-specific characteristics when interpreting results. Due to its inapplicability, TPA-test should not be used in porcine blood to evaluate fibrinolytic potential. The study provides a foundation for future investigations into the use of different viscoelastic hemostatic assays in porcine animal models. 
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