4.5 Article

Thermoreversible Reverse-Phase-Shift Foam for Treatment of Noncompressible Torso Hemorrhage

期刊

JOURNAL OF SURGICAL RESEARCH
卷 259, 期 -, 页码 175-181

出版社

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jss.2020.11.039

关键词

Noncompressible; Torso; Intraabdominal; Hemorrhage; Foam; Thermoreversible; Reverse-phase-shift

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资金

  1. US Army Medical Materiel Development Activity, the US Army Medical Research and Development Command under the Army Futures Command, through the Medical Technology Enterprise Consortium [W81XWH-18-9-0005]
  2. Air Force Medical Support Agency
  3. Military & Health Research Foundation [SC-15-03]

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This study demonstrated the feasibility of using Fast Onset Abdominal Management (FOAM) in a lethal swine model of Noncompressible Torso Hemorrhage (NCTH). The FOAM group showed significantly higher mean arterial pressure compared to controls, with a trend towards improved survival.
Background: Noncompressible torso hemorrhage (NCTH) is a leading cause of traumatic exsanguination, requiring emergent damage control surgery performed by a highly trained surgeon in a sterile operating environment. A self-expanding, intraabdominally deployed, thermoreversible foam is one proposed method to potentially task shift temporizing hemostasis to earlier providers and additional settings. The purpose of this study was to assess the feasibility of using Fast Onset Abdominal Management (FOAM) in a lethal swine model of NCTH. Methods: This was a proof-of-concept study comparing FOAM intervention in large York-shire swine to historical control animals in the established Ross-Burns model of NCTH. After animal preparation, a Grade IV liver laceration was surgically induced, followed by a free bleed period of 10 min. FOAM was then deployed to a goal intraabdominal pressure of 60 mm Hg for 5 min, followed by a total 60-min observation period following injury. Results: At the end of the experiment, the FOAM agent was found to be distributed throughout the peritoneal cavity in all animals, without signs of iatrogenic injury. The FOAM group demonstrated a significantly higher mean arterial pressure compared with historical controls and a trend toward improved survival: 82% (9/11) compared with 50% for controls (7/14; P = 0.082). Conclusions: This is the first study to describe the use of a thermoresponsive foam to manage NCTH and successfully demonstrated proof-of-concept feasibility of FOAM deployment. These results provide strong support for future, higher-powered studies to confirm improved survival with this novel intervention. (C) 2020 The Authors. Published by Elsevier Inc.

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