A Descriptive Analysis of Causalities Undergoing CASEVAC from the Point-of-Injury in the Department of Defense Trauma Registry.

INTRODUCTION: The recent conflicts in Iraq and Afghanistan entail an asymmetric battlefield without clearly defined forward lines of troops as seen in previous wars. Accordingly, the United States military medical services have increasingly adopted casualty evacuation (CASEVAC) platforms. We describe CASEVAC events reported within the Department of Defense Trauma Registry (DODTR). MATERIALS AND METHODS: This is a secondary analysis of previously published data from two datasets spanning from 2007 through 2017. We isolated casualties within our dataset that had a documented evacuation method from the point-of-injury other than dedicated medical evacuation platforms (e.g., MEDEVAC, etc.). RESULTS: During OPERATION IRAQI FREEDOM, three casualties underwent CASEVAC. The median age was 30 and all were male. Most sustained injuries from explosives (67%) and the median composite injury scores were low (10). The most frequent seriously injured body region was the thorax (67%). All survived to hospital discharge. During operations in Afghanistan (OPERATION ENDURING FREEDOM, OPERATION FREEDOMS SENTINEL, OPERATION NEW DAWN), 248 casualties underwent CASEVAC. The median age was 28 and most (96%) were male. Most sustained injuries from explosives (58%) and the median injury score was low (9). The most frequent seriously injured body region was the extremities (24%). Most (97%) survived to hospital discharge. During OPERATION INHERENT RESOLVE, 247 casualties underwent CASEVAC. The median age was 21 and most (96%) were male. The majority sustained injuries from explosives (61%) and the median injury score was low (9). The most frequent seriously injury body region was the extremities (27%). Most survived to hospital discharge (94%). CONCLUSIONS: In our dataset, CASEVAC events most frequently involved US military personnel service members with most surviving to hospital discharge. Developing new terminology that distinguishes different types of CASEVAC would allow for more accurate future analyses of casualty evacuation and outcomes - such as those transports that are truly in a non-medical versus the various medical platforms that do not fall with into the confines of the MEDEVAC platforms.

A comparison of the incidence of cricothyrotomy in the deployed setting to the emergency department at a level 1 military trauma center: a descriptive analysis.

Airway management is a critical skill of emergency medicine physicians and prehospital providers. Airway compromise is the cause of 1.8% of battlefield deaths. Cricothyrotomy is a critical, lifesaving procedure. In this study, we conducted a retrospective descriptive analysis comparing the incidence of cricothyrotomies in the deployed setting versus the incidence in a military level 1 trauma center emergency department (ED) setting in San Antonio, Texas. The deployed/in-theater procedures were performed from September 2007 to July 2009. The ED procedures were performed from April 2010 to February 2012. Over these study periods, 28 cricothyrotomies were performed in the deployed setting against a backdrop of 11,492 trauma admissions compared to 4 cricothyrotomies performed during 2,741 trauma admissions in the ED setting. The per admission incidence of deployed cricothyrotomies was 0.24% versus an incidence of 0.15% in the ED (p=0.46). We conclude that this rare, lifesaving procedure is performed more often in the deployed setting than the ED, but this difference was not statistically significant.