Efficacy of the Abdominal Aortic Junctional Tourniquet-Torso Plate in a Lethal Model of Noncompressible Torso Hemorrhage

Alicia Marie Bonanno, Heather E. Hoops, Todd Graham, Benjamin L. Davis, Belinda H. McCully, Lauren N. Wilson, Brianne M. Madtson, James Ross

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

BACKGROUND: The Abdominal Aortic Junctional Tourniquet, when modified with an off-label, prototype, accessory pressure distribution plate (AAJT-TP), has the potential to control noncompressible torso hemorrhage in prolonged field care. METHODS: Using a lethal, noncompressible torso hemorrhage model, 24 male Yorkshire swine (81kg-96kg) were randomly assigned into two groups (control or AAJT-TP). Anesthetized animals were instrumented and an 80% laparoscopic, left-side liver lobe transection was performed. At 10 minutes, the AAJT-TP was applied and inflated to an intraabdominal pressure of 40mmHg. At 20 minutes after application, the AAJT-TP was deflated, but the windlass was left tightened. Animals were observed for a prehospital time of 60 minutes. Animals then underwent damage control surgery at 180 minutes, followed by an intensive care unit-phase of care for an additional 240 minutes. Survival was the primary end point. RESULTS: Compared with Hextend, survival was not significantly different in the AAJT-TP group (ρ = .564), nor was blood loss (3.3L ± 0.5L and 3.0L ± 0.5L, respectively; p = .285). There was also no difference in all physiologic parameters between groups at the end of the study or end of the prehospital phase. Three of 12 AAJT-TP animals had an inferior vena cava thrombus. CONCLUSION: The AAJT-TP did not provide any survival benefit compared with Hextend alone in this model of noncompressible torso hemorrhage.

Original languageEnglish (US)
Pages (from-to)106-110
Number of pages5
JournalJournal of special operations medicine : a peer reviewed journal for SOF medical professionals
Volume18
Issue number4
StatePublished - Dec 1 2018

ASJC Scopus subject areas

  • Medicine(all)

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