Human and animal models for studying hemorrhagic shock

Abstract Background Studying the physiological response to severe hemorrhage remains challenging in real-world patients. Animal and human models mitigate some of the challenges by facilitating controlled studies on hemorrhagic shock. Here, we comment on existing and future hemorrhagic shock models....

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Main Authors: Sole Lindvåg Lie, Ingrid Nygren Rognes
Format: Article
Language:English
Published: BMC 2025-07-01
Series:Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Subjects:
Online Access:https://doi.org/10.1186/s13049-025-01434-y
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author Sole Lindvåg Lie
Ingrid Nygren Rognes
author_facet Sole Lindvåg Lie
Ingrid Nygren Rognes
author_sort Sole Lindvåg Lie
collection DOAJ
description Abstract Background Studying the physiological response to severe hemorrhage remains challenging in real-world patients. Animal and human models mitigate some of the challenges by facilitating controlled studies on hemorrhagic shock. Here, we comment on existing and future hemorrhagic shock models. Models for studying hemorrhagic shock While small animal models are cost-effective and suited for proof-of-concept studies, large animal models provide better translational relevance as they are physiologically and anatomically more comparable to humans. Experimental models in healthy volunteers– and specifically the lower body negative pressure model– offer a human model to study early hemodynamic responses to simulated hemorrhage, though limited in severity and lack of tissue injury. Conclusions Animal and human models are valuable in studying the physiological response to hemorrhage. Acknowledging their respective limitations, a triangulated approach can enhance our overall understanding of hemorrhagic shock. In the future, we expect artificial intelligence, machine learning and computer-based simulation models to complement existing research models.
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spelling doaj-art-4413dd78d8dd49138cca543887c8e1d72025-08-20T03:05:57ZengBMCScandinavian Journal of Trauma, Resuscitation and Emergency Medicine1757-72412025-07-013311310.1186/s13049-025-01434-yHuman and animal models for studying hemorrhagic shockSole Lindvåg Lie0Ingrid Nygren Rognes1Department of Research and Development, Norwegian Air Ambulance FoundationDepartment of Research and Development, Norwegian Air Ambulance FoundationAbstract Background Studying the physiological response to severe hemorrhage remains challenging in real-world patients. Animal and human models mitigate some of the challenges by facilitating controlled studies on hemorrhagic shock. Here, we comment on existing and future hemorrhagic shock models. Models for studying hemorrhagic shock While small animal models are cost-effective and suited for proof-of-concept studies, large animal models provide better translational relevance as they are physiologically and anatomically more comparable to humans. Experimental models in healthy volunteers– and specifically the lower body negative pressure model– offer a human model to study early hemodynamic responses to simulated hemorrhage, though limited in severity and lack of tissue injury. Conclusions Animal and human models are valuable in studying the physiological response to hemorrhage. Acknowledging their respective limitations, a triangulated approach can enhance our overall understanding of hemorrhagic shock. In the future, we expect artificial intelligence, machine learning and computer-based simulation models to complement existing research models.https://doi.org/10.1186/s13049-025-01434-yHemorrhageHemorrhagic shockAnimal modelsTraumaLower body negative pressure
spellingShingle Sole Lindvåg Lie
Ingrid Nygren Rognes
Human and animal models for studying hemorrhagic shock
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Hemorrhage
Hemorrhagic shock
Animal models
Trauma
Lower body negative pressure
title Human and animal models for studying hemorrhagic shock
title_full Human and animal models for studying hemorrhagic shock
title_fullStr Human and animal models for studying hemorrhagic shock
title_full_unstemmed Human and animal models for studying hemorrhagic shock
title_short Human and animal models for studying hemorrhagic shock
title_sort human and animal models for studying hemorrhagic shock
topic Hemorrhage
Hemorrhagic shock
Animal models
Trauma
Lower body negative pressure
url https://doi.org/10.1186/s13049-025-01434-y
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