Open Access A Model of Hemorrhagic Shock and Acute Lung Injury in Landrace–Large White Swine

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Abstract:

Traumatic injury is a leading cause of death worldwide for people between 5 and 44 y of age, and it accounts for 10% of all deaths. The incidence of acute lung injury, a life-threatening complication in severely injured trauma patients remains between 30% and 50%. This study describes an experimental protocol of volume-controlled hemorrhage in Landrace–Large White swine. The experimental approach simulated the clinical situation associated with hemorrhagic shock in the trauma patient while providing controlled conditions to maximize reproducibility. The duration of the protocol was 8 h and was divided into 5 distinct phases—stabilization, hemorrhage, maintenance, resuscitation, and observation—after which the swine were euthanized. Lung tissue samples were analyzed histologically. All swine survived the protocol. The hemodynamic responses accurately reflected those seen in humans, and the development of acute lung injury was consistent among all swine. This experimental protocol of hemorrhagic shock and fluid resuscitation in Landrace–Large White swine may be useful for future study of hemorrhagic shock and acute lung injury.

Document Type: Research Article

Affiliations: 1: Department of Anatomy, University of Athens Medical School, Athens, Greece 2: Department of Anatomy, University of Athens Medical School, Athens, Greece. theodorosxanthos@yahoo.com 3: Department of Pathology, University of Athens Medical School, Athens, Greece

Publication date: April 1, 2011

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  • Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.

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