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Michelle DuGuay Landers, MBA, BSN, RN

Breakaway Media, LLC

Publisher

Journal of Special Operations Medicine (JSOM)

Lt Col, USAF/NC (Ret)

[email protected]

www.JSOMonline.org

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ABSTRACT

US Army Forward Surgical Elements (FSEs) are highly mobile teams that provide damage control surgery (DCS) and damage control resuscitation (DCR) in austere locations that often lack standard hospital utilities (electricity, heat, food, and water). FSEs rely on portable battery-operated intravenous (IV) fluid warmers to remain light and mobile. However, their ability to warm blood in a massive resuscitation requires additional analysis. The purpose of this literature review is to examine the three most common battery-operated IV fluid warmers as determined by type and quantity listed on the Mission Table of Organization and Equipment (MTOE) of organic mobile medical units. These include the Buddy Lite, enFlow, and Thermal Angel, which are available to deployed US Army FSEs for blood resuscitation therapy. Based on limited available evidence, the enFlow produced higher outlet temperatures, effectively warmed greater volumes, reached the time to peak temperature faster, and produced greatest flow rates, with cool saline (5-10°C), compared to the Thermal Angel and Buddy Lite. However, recently the US Food and Drug Administration (FDA) issued a Class 1 recall on enFlow cartridges. Testing demonstrated aluminum elution from enFlow cartridges into IV solutions, thereby exposing patients to potentially unsafe aluminum levels. The authors recommend FSE units conduct a 100% enFlow cartridge inventory and seek an alternative IV fluid warming system prior to enFlow cartridge disposal. 

ABSTRACT

Background: Exsanguination is the leading cause of preventable posttraumatic death, especially in the prehospital arena. Traditional hemorrhage control methods involve packing the wound with hemostatic agents, providing manual pressure, and then applying a pressure dressing to stabilize the treatment. This is a lengthy process that frequently destabilizes upon patient transport. Conversely, the iTClamp, a compact wound closure device, is designed to rapidly seal wound edges mechanically, expediting clot formation at the site of injury. Objectives: To determine the efficacy of the iTClamp with and without wound packing in the control of a lethal junction hemorrhage. Methods: Given the limited available information regarding the efficacy of the iTClamp in conjunction with traditional hemostatic agents, this study used a swine model of severe junctional hemorrhage. The goal was to compare a multiagent strategy using the iTClamp in conjunction with XSTAT to the traditional method of Combat Gauze packing with pressure dressing application. Readouts include application time, blood loss, and rebleed occurrence. Results: Mean application times of the iTClamp treatment alone or in conjunction with other hemostatic agents were at least 75% faster than the application time of Combat Gauze with pressure dressing. Percent blood loss was not significantly different between groups but trended the highest for Combat Gauze treated swine, followed by iTClamp plus XSTAT, iTClamp alone and finally iTClamp plus Combat Gauze. Conclusion: The results from this study demonstrate that the iTClamp can be effectively utilized in conjunction with hemostatic packing to control junctional hemorrhages.



ABSTRACT

Background: Tamping explosive charges used by breachers is an increasingly common technique. The ability to increase the directional effectiveness of the charge used, combined with the potential to reduce experienced overpressure on breachers, makes tamping a desirable tool not only from an efficacy standpoint for breachers but also from a safety standpoint for operational personnel. The long-term consequences of blast exposure are an open question and may be associated with temporary performance deficits and negative health symptomatology. Purpose: This work evaluates breaches of varying charge weight, material breached, and tamping device used to determine the value of tamping during various scenarios by measuring actual breaches conducted during military and law enforcement training for efficacy and blast overpressure on Operators. Methods: Three data collections across 18 charges of various construction were evaluated with blast overpressure sensors at various distances and locations where breachers would be located, to assess explosive forces on human personnel engaged in breaching activities. Results and Conclusions: Findings indicate that water tamping in general is a benefit on moderate and heavy charges but offers less benefit at a low charge with regard to mitigating blast overpressure on breachers. Reduced overpressure allows Operators to stage closer to explosives and lowers the potential for compromised reaction time. It also reduces the likelihood of negative consequences that can result from excessive overpressure exposure and allow Operators to "do more with less" in complex environments, where resource access may be limited by logistic or other limitations. However, tamping in all instances improved blast efficacy in creating successful breaches. Future studies are planned to investigate tamping mediums beyond water and environment changes, whether tamping can be used to mitigate acoustic insult, and other explosive types.

Keywords: breachers; blast; overpressure; tamping; water tamp

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.

Current Episode

The new Winter 2022 episode of the JSOM podcast is now available on our website and wherever you listen to podcasts.

Our guest medic editor this quarter is Devin DeFeo, a former SOF medic. 2LT DeFeo enlisted in the Army in 2004 and served as an 18D with 1SFG(A) and USASOC. As a medic, he authored the concept for MARCHE2 for TCCC in the chemical, biological, radiological, and nuclear (CBRN) environment published in JSOM, which later formed the framework for the Joint Trauma System Clinical Practice Guidelines on CBRN medicine and the CBRN chapter in the Ranger Medical Handbook. He then participated in the Enlisted to Medical Degree Preparatory Program (EMDP2) at George Mason University, earning a master of science in biology. He is currently a third-year medical student at the Uniformed Services University of the Health Sciences (USUHS). 2LT DeFeo is considering a residency in emergency medicine. He will be reviewing Does Mental and Visual Skills Training Improve High-Value Target Identification and Marksmanship Among Elite Soldiers? by J. Jay Dawes, et al. (p. 22). Our author interview is with Michael J. Egnoto, PhD (An Exploratory Comparison of Water-Tamped and -Untamped Explosive Breaches: Practical Applications for the Tactical Community via Pilot Study). Dr Egnoto is affiliated with the Walter Reed Army Institute of Research, Forest Glen Annex, Silver Spring, MD.

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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.

ROMANIA

01.25.2023

Photo by Maj. Brett Sullenger 

2nd Brigade Combat Team, 101st Airborne Division (AA) Public Affairs  

Soldiers assigned to the 1st Battalion, 26th Infantry Regiment, 2nd Brigade Combat Team “Strike”, 101st Airborne Division (Air Assault) execute a simulated mass casualty (MASCAL) training exercise on Jan. 25, 2023, in Romania. The MASCAL trains and tests a unit’s ability to provide medical care for a large number of casualties, which might exceed the current logistical or medical capacity, in a short period of time. 101st units will support V Corps mission to reinforce NATO’s eastern flank and engage in multinational exercises with partners across the European continent to reassure our Nations allies. (U.S. Army photos by Maj. Brett Sullenger, 2nd Brigade Combat Team “Strike” Public Affairs Officer)

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