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Michelle DuGuay Landers, MBA, BSN, RN

Breakaway Media, LLC

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Journal of Special Operations Medicine (JSOM)

Lt Col, USAF/NC (Ret)

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ABSTRACT

Background: Airway obstruction is the second leading cause of potentially preventable death on the battlefield. The treatment for airway obstruction is intubation or advanced airway adjunct, which has a known risk of aspiration. We sought to describe the variables associated with aspiration pneumonia after prehospital airway intervention. Methods: This is a sub-analysis of previously described data from the Department of Defense Trauma Registry (DoDTR) from 2007 to 2020. We included casualties that had at least one prehospital airway intervention with documentation of subsequent aspiration pneumonia or pneumonia within three days of the intervention. We used a generalized linear model with Firth bias estimates to test for associations. Results: There were 1,509 casualties that underwent prehospital airway device placement. Of these, 41 (2.7%) met inclusion criteria into the aspiration pneumonia cohort. The demographics had no statistical difference between the groups. The non-aspiration cohort had fewer median ventilator days (2 versus 6, p < 0.001), intensive care unit days (2 versus 7, p < 0.001, and hospital days [3 versus 8, p < 0.001]). Survival was lower in the non-aspiration cohort (74.2% versus 90.2%, p = 0.017). The administration of succinylcholine was higher in the non-aspiration cohort (28.0% versus 12.2%, p = 0.031). In our multivariable model, only the administration of succinylcholine was significant and was associated with lower probability of aspiration pneumonia (odds ratio 0.56). Conclusion: Overall, the incidence of aspiration pneumonia was low in our cohort. The administration of succinylcholine was associated with a lower odds of developing aspiration pneumonia.

Military Standard Testing of Commercially Available Supraglottic Airway Devices for Use in a Military Combat Setting

Bedolla C, Zilevicius D, Copeland G, Guerra M, Salazar S, April MD, Long B, Naylor JF,

De Lorenzo RA, Schauer SG, Hood RL. 23(2). 19 - 32. (Journal Article)

ABSTRACT

Introduction: Airway obstruction is the second leading cause of death on the battlefield. The harsh conditions of the military combat setting require that devices be able to withstand extreme circumstances. Military standards (MIL-STD) testing is necessary before devices are fielded. We sought to determine the ability of supraglottic airway (SGA) devices to withstand MIL-STD testing. Methods: We tested 10 SGA models according to nine MIL-STD-810H test methods. We selected these tests by polling five military and civilian emergency-medicine subject matter experts (SMEs), who weighed the relevance of each test. We performed tests on three devices for each model, with operational and visual examinations, to assign a score (1 to 10) for each device after each test. We calculated the final score of each SGA model by averaging the score of each device and multiplying that by the weight for each test, for a possible final score of 2.6 to 26.3. Results:The scores for the SGA models were LMA Classic Airway, 25.9; AuraGain Disposable Laryngeal Mask, 25.5; i-gel Supraglottic Airway, 25.2; Solus Laryngeal Mask Airway, 24.4; LMA Fastrach Airway, 24.4; AuraStraight Disposable Laryngeal Mask, 24.1; King LTS-D Disposable Laryngeal Tube, 22.1; LMA Supreme Airway, 21.0; air-Q Disposable Intubating Laryngeal Airway, 20.1; and Baska Mask Supraglottic Airway, 18.1. The limited (one to three) samples available for testing provide adequate preliminary information but restrict the range of failures that could be discovered. Conclusions: Lower scoring SGA models may not be optimal for military field use. Models scoring sufficiently close to the top performers (LMA Classic, AuraGain, i-gel, Solus, LMA Fastrach, AuraStraight) may be viable for use in the military setting. The findings of our testing should help guide device procurement appropriate for different battlefield conditions.



ABSTRACT

Background: Recent data published by the Special Operations community suggest the Lethal Triad of Trauma should be changed to the Lethal Diamond, to include coagulopathy, acidosis, hypothermia, and hypocalcemia. The purpose of this study is to determine the prevalence of trauma-induced hypocalcemia in level I and II trauma patients. Methods: This is a retrospective cohort study conducted at a level I trauma center and Special Operations Combat Medic (SOCM) training site. Adult patients were identified via trauma services registry from September 2021 to April 2022. Patients who received blood products prior to emergency department (ED) arrival were excluded from the study. Ionized calcium levels were utilized in this study. Results: Of the 408 patients screened, 370 were included in the final analysis of this cohort. Hypocalcemia was noted in 189 (51%) patients, with severe hypocalcemia identified in two (<1%) patients. Thirty-two (11.2%) patients had elevated international normalized ratio (INR), 34 (23%) patients had pH <7.36, 21 (8%) patients had elevated lactic acid, and 9 (2.5%) patients had a temperature of <35°C. Conclusion: Hypocalcemia was prevalent in half of the trauma patients in this cohort. The administration of a calcium supplement empirically in trauma patients from the prehospital environment and prior to blood transfusion is not recommended until further data prove it beneficial.

Keywords: hypocalcemia; trauma; ionized calcium; Diamond of Death; lethal triad



The JSOM podcast digs deeper into the articles and subjects that matter to our readers. Our podcast hosts, Captains Alex Merkle and Josh Randles, tackle articles from the journal based on merit, interest, and application for operators in the field. THE SUMMER 23 EPISODE IS HERE!

Current Episode

The Summer 2023 episode of the JSOM podcast is our most recent recording and is now available on our website and wherever you listen to podcasts.

Our Guest Medic Editor is SO1 Brentyn Jone, a Navy SEAL/SOCM, currently, working in the Tactical Medical Training Department. He will be reviewing Prevalence of Trauma-Induced Hypocalcemia in the Prehospital Setting.

JSOM Guest Author Interview

Patrick Thompson is affiliated with the Trauma, Hemostasis & Oxygenation Research Network, Bergen, Norway. He will be reviewing Risk of Harm in Needle Decompression for Tension Pneumothorax.



CPT Josh Randles will review The Impact of Special Operations Medics and Corpsmen on Military Medical Student Training: A Qualitative Study.

SOF-T® Tourniquet by TacMed Solutions®: The Ultimate Military Lifesaving Tool

In the heat of intense combat scenarios, where split-second decisions are a matter of life and death, the SOF-T® Tourniquet from TacMed Solutions (https://tacmedsolutions.com/) emerges as the unrivaled standard for military prehospital tourniquets. Developed and engineered by battle-tested Special Operations Medics, this remarkable device embodies precision, functionality, and unwavering reliability when it counts the most. It has earned the trust of elite military forces worldwide and stands as the preferred tourniquet for emergency first responders operating in high-risk situation.

The Journal of Special Operations Medicine is proud to have the support of many great sponsors and media partners. Our sponsors are leaders in the field of military medical technology. Please help support these companies by following the links below to learn more about their missions and the products they offer. This section also features peridoic promtional information for events and conferences, including the 2023 SOMA Scientific Assembly. 

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Visit https://jsom.us/Library for a full list of institutions currently subscribing to the JSOM. We are beginning a campaign to expand our institutional subscriptions. If you think your company would benefit from an institutional subscription, let us know! We'll be happy to talk to you and get the ball rolling. You don't have to be a university or medical center to subscribe - we have many EMS units, government agencies, and military medical units in the United States and abroad.

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Institutions receive a print copy of our journal, digital access, or both. Digital subscribers have unlimited access to our full compendium of articles, journals, and the ATP-P. If you are a student, researcher, doctor, or other medical professionals at one of these institutions, please contact your librarian for login details. Additionally, the digital resources are typically available 2-3 weeks ahead of print publication.

If your institution is not on the list and you want more information about our institutional access, contact our subscriptions manager, Dr. Scott Graverson.

For over 20 years, the Journal of Special Operations Medicine (JSOM) has brought important, lifesaving information to the Special Operations Forces (SOF) community. And over the years, as our audience and readership has expanded into over 80 countries, physicians, military and tactical medics, and other medical professionals working in unconventional environments rely on the JSOM for breakthrough research at the intersection of operational medicine and tactical casualty care. Our peer-reviewed research and interactive clinical content make the JSOM a must-read for:

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For these reasons, many of the world’s top medical technology companies and medical device distributors make the JSOM a cornerstone of their advertising programs. And with a strong multichannel and social media presence, the JSOM offers the most dynamic print and digital media options at cost-effective prices. For medical marketers worldwide looking to reach our niche audience, the JSOM is the gold standard. For more information, please see our attached media kit.

FORT DRUM, NY

07.26.2023

Photo by Spc. Jaidon Novinska 

XVIII Airborne Corps Public Affairs

DVIDS

Paratroopers with the 82nd Airborne Division and Soldiers with the 101st Airborne Division (Air Assault) competing in the Best Squad Competition board a UH-60 Blackhawk that will transport them to the next phase of the competition July 26, 2023, at Fort Drum, New York. The Best Squad Competition reinforces fundamental Soldier skills and squad-level tactics, demonstrates commitment to the Army Values, and promotes esprit de corps.

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