AI Article Synopsis

  • Aortic injury (AI) is a rare but deadly result of trauma, with approximately 7,500 to 8,000 cases annually, predominantly resulting in fatalities due to severe blood loss.
  • More than 80% of victims die at the crash site, highlighting the critical need for prevention strategies to improve outcomes in motor vehicle accidents that cause AIs.
  • A study using computer simulations and real-world data showed that occupant seating position, impact height, and principal direction of force are key factors influencing the likelihood of aortic injury in crashes.

Article Abstract

Aortic injury (AI) leading to disruption of the aorta is an uncommon but highly lethal consequence of trauma in modern society. Most recent estimates range from 7,500 to 8,000 cases per year from a variety of causes. It is observed that more than 80% of occupants who suffer an aortic injury die at the scene due to exsanguination into the chest cavity. It is evident that effective means of substantially improving the outcome of motor vehicle crash-induced AIs is by preventing the injury in the first place. In the current study, 16 design of computer experiments (DOCE) were carried out with varying levels of principal direction of force (PDOF), impact velocity, impact height, and impact position of the bullet vehicle combined with occupant seating positions in the case vehicle to determine the effects of these factors on aortic injury. Further, a combination of real world crash data reported in the Crash Injury Research and Engineering Network (CIREN) database, Finite Element (FE) vehicle models, and the Wayne State Human Body Model-II (WSHBM-II) indicates that occupant seating position, impact height, and PDOF, in that order play, a primary role in aortic injury.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4568358PMC
http://dx.doi.org/10.1155/2015/269386DOI Listing

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