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The Expanded Scope of Emergency Medical Practice Necessary for Initial Disaster Response: Lessons from Haiti

Menon AS, Norris RL, Racciopi J, Tilson H, Gardner J, Mcadoo G, Brown IP, Auerbach PS 12(1). 31 - 36 (Journal Article)

A team of emergency physicians and nurses from Stanford University responded to the devastating January 2010 earthquake in Haiti. Because of the extreme nature of the situation, combined with limited resources, the team provided not only acute medical and surgical care to critically injured and ill victims, but was required to uniquely expand its scope of practice. Using a narrative format and discussion, it is the purpose of this paper to highlight our experience in Haiti and use these to estimate some of the skills and capabilities that will be useful for physicians who respond to similar future disasters.

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Advanced Medical Technology Capacity Building and the Medical Mentoring Event: A Unique Application of SOF Counterinsurgency Medical Engagement Strategies

Irizarry DJ, Tate C, Bingham MT, Wey P, Batjom E, Nicholas TA, Boedecker BH 12(1). 24 - 30 (Journal Article)

The Medical Civic Assistance Program (MEDCAP) is a military commander's tool developed during the Vietnam War to gain access to and positively influence an indigenous population through the provision of direct medical care provided by military medical personnel, particularly in Counter Insurgency Operations (COIN). An alternative to MEDCAPs is the medical seminar (MEDSEM). The MEDSEM uses a Commander's military medical assets to share culturally appropriate medical information with a defined indigenous population in order to create a sustainable training resource for the local population's health system. At the heart of the MEDSEM is the "train the trainer" concept whereby medical information is passed to indigenous trainers who then pass that information to an indigenous population. The MEDSEM achieves the Commander's objectives of increasing access and influence with the population through a medical training venue rather than direct patient care. Previous MEDSEMS conducted in Afghanistan by military forces focused on improvement of rural healthcare through creation of Village Health Care Workers. This model can also be used to engage host nation (HN) medical personnel and improve medical treatment capabilities in population centers. The authors describe a modification of the MEDSEM, a Medical Mentorship (MM), conducted in November 2010 in Kabul, Afghanistan, at the Afghan National Army (ANA) National Medical Hospital. This training was designed to improve intubation skills in Afghan National Army Hospitals by ANA medical providers, leave residual training capability, and build relationships within the institution that not only assist the institution, but can also be leveraged to foster Commanders' objectives, such as health and reconstruction initiatives and medical partnering for indigenous corps and medical forces described below.

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A Salmon Thrombin-Fibrinogen Dressing Controls Hemorrhage in a Swine Model Compared to Standard Kaolin-Coated Gauze

Floyd CT, Rothwell SW, Martin R, Risdahl J, Olson CE 12(1). 49 - 55 (Journal Article)

Battlefield hemorrhage remains the primary cause of death in potentially survivable combat injuries with noncompressible hemorrhage. Fibrin dressings have great potential for reducing mortality, however are limited by cost, availability, and disease transmission. Methods: Dressings comprising a soluble dextran dressing with lyophilized salmon thrombin and fibrinogen (STF) were tested against Combat Gauze (CG) as a control in a standard swine femoral artery hemorrhage model. Ten female swine were used in each arm of the study. Results: Survival, blood loss, and time to hemostasis were similar between the two dressings. Two of the CGtreated animals that survived exsanguinated during the simulated walking maneuver. Three CG-treated animals formed a clot within the wound, but the clot did not adhere to the femoral artery injury. All ten of the STFtreated animals formed a clot in the wound that adhered and sealed the arterial injury site, even in three animals that did not survive. None of the STF-treated animals bled following the simulated walking maneuver. Three of five STF-treated animals reestablished blood flow distal to the injury as demonstrated by angiography. Conclusions: The STF dressing is as efficacious as CG in treating hemorrhage in this model of a lethal injury. Further, the STF dressing formed a fibrin sealant over the injury, whereas CG achieved hemostasis by occlusive compression of the artery. The sealant property of the STF dressing allowed reestablishment of antegrade blood flow into the distal limb, demonstrating that this dressing has the potential of limb salvage in addition to control of life-threatening hemorrhage.

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Immunoglobulin M and Immunoglobulin G Seronegative Q Fever: A Hypothesis for Veterans' Medically Unexplained Chronic Multi-symptom Illnesses

Chagaris MJ, Smith RC, Goldstein AL 12(1). 37 - 48 (Journal Article)

We present Q fever as a credible hypothesis for Gulf War Veterans' Illnesses (GWVIs) and as a possible etiology for prevalent symptomologies affecting currently serving servicemembers. Q fever is caused by the bacteria Coxiella burnetii, which is endemic throughout the Middle East. Q fever may manifest in many forms of widely varying and often inconstant symptoms. Due to false-negative interpretations in current and past diagnostic testing, Q fever has not received appropriate consideration as a possible causative agent for medically unexplained veterans' illnesses. Review of current literature invites us to consider that a form of Q fever involving an incomplete immune response is a potential cause of these debilitating illnesses. We hypothesize C. burnetii infection coincidental to exposures suppressing antibody-specific immune response results in infection mediated by immunoglobulin D (IgD). Literature indicates that successful treatment for this form of Q fever requires the concurrent administration of doxycycline and hydroxychloroquine.

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Prolonged Field Care Working Group Update

Keenan S 16(2). 105 - 106 (Journal Article)

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A Medical Training Event for Special Forces Medical Sergeants

Hellums JS 12(1). 56 - 61 (Journal Article)

Special Forces Medical Sergeants (SFMS) are independent multidisciplinary medical personnel who possess unique medical skill sets that require regular practice in order to maintain proficiency. Due to high operational tempo, the windows of opportunity to practice these abilities are usually limited to short periods of required training to maintain credentials. A Special Forces (SF) Battalion allowed their medical section to orchestrate a weeklong medical training event that included emergency procedure lectures, human cadaver training, ultrasound familiarization, medical administration instruction, and behavioral health discussions. This training enabled the SFMS to hone their competencies and increase their clinical confidence while working and learning from each other and other medical providers. The training event was a great success.

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Avoiding Program-Induced Cumulative Overload (PICO)

Orr R, Knapik JJ, Pope R 16(2). 91 - 95 (Journal Article)

This article defines the concept of program-induced cumulative overload (PICO), provides examples, and advises ways to mitigate the adverse effects. PICO is the excessive cumulative physical workload that can be imparted to military personnel by a military training program with an embedded physical training component. PICO can be acute (accumulating within a single day) or chronic (accumulating across the entirety of the program) and results in adverse outcomes for affected personnel, including detrimental fatigue, performance degradation, injuries, or illness. Strategies to mitigate PICO include focusing administration and logistic practices during the development and ongoing management of a trainee program and implementing known musculoskeletal injury prevention strategies. More training is not always better, and trainers need to consider the total amount of physical activity that military personnel experience across both operational training and physical training if PICO is to be mitigated.

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Lesions Arising in a Tattoo of an Active Duty US Marine Corps Woman

Winn AE, Rivard SC, Green B 16(2). 96 - 100 (Journal Article)

Tattoos are ubiquitous in modern society; however, they do not come without risk of medical complications. When complications arise in the military community, a particularly thorough differential diagnosis should be considered based on the increased exposures service members have during deployment and throughout their military career. We present a case of a 38-year-old active duty US Marine Corps woman with worsening skin lesions arising within a tattoo 6 weeks after acquiring the tattoo on her right chest. Given environmental exposures from a recent deployment to the Middle East, a wide differential was considered. Ultimately, a skin biopsy revealed early hypertrophic scar formation responsive to therapy with intralesional triamcinolone acetonide (Kenalog® [ILK]). However, given the Marine had recently deployed and is part of the active duty population, consideration of alternative, albeit rare, etiologies was imperative.

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An Evaluation of Common Cleaning Methods for the Removal of a Clinical Isolate of Escherichia coli in Personal Hydration System Water Reservoirs

Helmus S, Blythe J, Guevara P, Washington MA 16(2). 101 - 104 (Journal Article)

Waterborne infection is an important cause of morbidity and mortality throughout the world. Personal hydration packs have been used by military personnel since the Gulf War and are now a common issue item. Since military personnel tend to operate under austere conditions and may use a variety of water sources, preventing the acquisition of waterborne infections is extremely important. Further, since hydration pack water reservoir replacements may not be available during combat operations, the development of a reliable cleaning protocol for use in the field is essential. Several methods for cleaning have been described. In the current study, three common cleaning methodologies-bleach treatment, baking soda treatment, and proprietary CAMELBAK Cleaning Tabs™-were evaluated for the ability to remove Escherichia coli contamination from hydration pack water reservoirs. The study results suggest that the use of bleach and proprietary CAMELBAK tablets should be encouraged since they both operate by releasing bactericidal chlorine compounds into solution, which is more effective at reducing post-treatment bacterial burden. It should be noted that no method was 100% effective at completely eliminating bacteria from the reservoirs and that mechanical cleaning was not attempted.

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Pain as a Barrier to Human Performance: A Focus on Function for Self-Reporting Pain With the Defense Veterans Pain Rating Scale

Buckenmaier CC, Galloway KT, Polomano RC, Deuster PA 16(2). 82 - 87 (Journal Article)

The intense physical demands and dangerous operational environments common to Special Operations Forces (SOF) result in a variety of painful conditions, including musculoskeletal pain, headaches, and acute and chronic pain from combat injuries. Pain is a wellaccepted barrier to human performance. The Pain Management Task Force and the development of the Defense Veterans Pain Rating Scale (DVPRS) are discussed to provide a framework for changing the culture of pain management away from intensity of pain to interference with function and performance. The emergence of complementary and integrative pain management (CIM) practices is briefly reviewed as viable alternatives to the traditional reliance on opioids and other prescription medications. The SOF community can be the change agent for the DVPRS and CIM approaches to pain management, which will in the end serve to accelerate recovery and return SOF operators to duty faster and with an enhanced ability to perform with less pain.

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Japanese Encephalitis

Burnett MW 16(2). 89 - 90 (Journal Article)

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Field Electronic Medical Records

Cauchi T, Cameron O 16(2). 69 - 70 (Journal Article)

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Sea State Green

Banting J, Meriano T 16(2). 78 - 81 (Journal Article)

The series objective is to review various clinical conditions/ presentations, including the latest evidence on management, and to dispel common myths. In the process, core knowledge and management principles are enhanced. A clinical case will be presented. Cases will be drawn from real life but phrased in a context that is applicable to the Special Operations Forces (SOF) or tactical emergency medical support (TEMS) environment. Details will be presented in such a way that the reader can follow along and identify how they would manage the case clinically depending on their experience and environment situation. Commentary will be provided by currently serving military medical technicians. The medics and author will draw on their SOF experience to communicate relevant clinical concepts pertinent to different operational environments including SOF and TEMS. Commentary and input from active special op

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Effects of a New Cooling Technology on Physical Performance in US Air Force Military Personnel

O'Hara R, Vojta C, Henry A, Caldwell L, Wade M, Swanton S, Linderman JK, Ordway J 16(2). 57 - 61 (Journal Article)

Introduction: Heat-related illness is a critical factor for military personnel operating in hyperthermic environments. Heat illness can alter cognitive and physical performance during sustained operations missions. Therefore, the primary purpose of this investigation was to determine the effects of a novel cooling shirt on core body temperature in highly trained US Air Force personnel. Methods: Twelve trained (at least 80th percentile for aerobic fitness according to the American College of Sports Medicine, at least 90% on the US Air Force fitness test), male Air Force participants (mean values: age, 25 ± 2.8 years; height, 178 ± 7.9cm; body weight 78 ± 9.6kg; maximal oxygen uptake, 57 ± 1.9mL/kg/ min; and body fat, 10% ± 0.03%) completed this study. Subjects performed a 70-minute weighted treadmill walking test and 10-minute, 22.7kg sandbag shuttle test under two conditions: (1) "loaded" (shirt with cooling inserts) and (2) "unloaded" (shirt with no cooling inserts). Results: Core body temperature, exercise heart rate, capillary blood lactate, and ratings of perceived exertion were recorded. Core body temperature was lower (ρ = .001) during the 70-minute treadmill walking test in the loaded condition. Peak core temperature during the 70-minute walking test was also significantly lower (ρ = .038) in the loaded condition. Conclusion: This lightweight (471g), passive cooling technology offers multiple hours of sustained cooling and reduced core and peak body temperature during a 70-minute, 22.7kg weighted-vest walking test.

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Integration of Tactical Emergency Casualty Care Into the National Tactical Emergency Medical Support Competency Domains

Pennardt A, Callaway DW, Kamin R, Llewellyn C, Shapiro G, Carmona PA, Schwartz RB 16(2). 62 - 66 (Journal Article)

Tactical emergency medical support (TEMS) is a critical component of the out-of-hospital response to domestic high-threat incidents such as hostage scenarios, warrant service, active shooter or violent incidents, terrorist attacks, and other intentional mass casualty-producing acts. From its grass-roots inception in the form of medical support of select law enforcement special weapons and tactics (SWAT) units in the 1980s, the TEMS subspecialty of prehospital care has rapidly grown and evolved over the past 40 years. The National TEMS Initiative and Council (NTIC) competencies and training objectives are the only published recommendations of their kind and offer the opportunity for national standardization of TEMS training programs and a future accreditation process. Building on the previous work of the NTIC and the creation of acknowledged competency domains for TEMS and the acknowledged civilian translation of TCCC by the Committee for Tactical Emergency Casualty Care (C-TECC), the Joint Review Committee (JRC) has created an opportunity to bring forward the work in a form that could be operationally useful in an all-hazards and whole of community format.

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Literature Evidence on Live Animal Versus Synthetic Models for Training and Assessing Trauma Resuscitation Procedures

Hart D, McNeil M, Hegarty C, Rush R, Chipman J, Clinton J, Reihsen T, Sweet R 16(2). 44 - 51 (Journal Article)

There are many models currently used for teaching and assessing performance of trauma-related airway, breathing, and hemorrhage procedures. Although many programs use live animal (live tissue [LT]) models, there is a congressional effort to transition to the use of nonanimal- based methods (i.e., simulators, cadavers) for military trainees. We examined the existing literature and compared the efficacy, acceptability, and validity of available models with a focus on comparing LT models with synthetic systems. Literature and Internet searches were conducted to examine current models for seven core trauma procedures. We identified 185 simulator systems. Evidence on acceptability and validity of models was sparse. We found only one underpowered study comparing the performance of learners after training on LT versus simulator models for tube thoracostomy and cricothyrotomy. There is insufficient data-driven evidence to distinguish superior validity of LT or any other model for training or assessment of critical trauma procedures.

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Inner Ear Barotrauma After Underwater Pool Competency Training Without the Use of Compressed Air Case and Review

McIntire S, Boujie L 16(2). 52 - 56 (Journal Article)

Inner ear barotrauma can occur when the gas-filled chambers of the ear have difficulty equalizing pressure with the outside environment after changes in ambient pressure. This can transpire even with small pressure changes. Hypobaric or hyperbaric environments can place significant stress on the structures of the middle and inner ear. If methods to equalize pressure between the middle ear and other connected gas-filled spaces (i.e., Valsalva maneuver) are unsuccessful, middle ear overpressurization can occur. This force can be transmitted to the fluid-filled inner ear, making it susceptible to injury. Damage specifically to the structures of the vestibulocochlear system can lead to symptoms of vertigo, hearing loss, and tinnitus. This article discusses the case of a 23-year-old male Marine who presented with symptoms of nausea and gait instability after performing underwater pool competency exercises to a maximum depth of 13 feet, without breathing compressed air. Diagnosis and management of inner ear barotrauma are reviewed, as is differentiation from inner ear decompression sickness.

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Pressures Under 3.8cm, 5.1cm, and Side-by-Side 3.8cm-Wide Tourniquets

Wall PL, Weasel J, Rometti MR, Birkholz S, Gildemaster Y, Grulke L, Sahr SM, Buising CM 16(2). 28 - 35 (Journal Article)

Background: Applications of wider tourniquet are expected to occlude arterial flow at lower pressures. We examined pressures under 3.8cm-wide, 5.1cm-wide, and side-by-side-3.8cm-wide nonelastic strap-based tourniquets. Methods: Ratcheting Medical Tourniquets (RMT) were applied mid-thigh and mid-arm for 120 seconds with Doppler-indicated occlusion. The RMTs were a Single Tactical RMT (3.8cm-wide), a Wide RMT (5.1cm-wide), and Paired Tactical RMTs (7.6cm-total width). Tightening completion was measured at one-tooth advance past arterial occlusion, and paired applications involved alternating tourniquet tightening. Results: All 96 applications on the 16 recipients reached occlusion. Paired tourniquets had the lowest occlusion pressures (ρ < .05). All pressures are given as median mmHg, minimum-maximum mmHg. Thigh application occlusion pressures were Single 256, 219-299; Wide 259, 203-287; Distal of Pair 222, 183-256; and Proximal of Pair 184, 160-236. Arm application occlusion pressures were Single 230, 189-294; Wide 212, 161-258; Distal of Pair 204, 193-254, and Proximal of Pair 168, 148-227. Pressure increases with the final tooth advance were greater for the 2 teeth/cm Wide than for the 2.5 teeth/cm Tacticals (ρ < .05). Thigh final tooth advance pressure increases were Single 40, 33-49; Wide 51, 37-65; Distal of Pair 13, 1-35; and Proximal of Pair 15, 0-30. Arm final tooth advance pressure increases were Single 49, 41-71; Wide 63, 48-77; Distal of Pair 3, 0-14; and Proximal of Pair 23, 2-35. Pressure decreases occurred under all tourniquets over 120 seconds. Thigh pressure decreases were Single 41, 32-75; Wide 43, 28-62; Distal of Pair 25, 16-37; and Proximal of Pair 22, 15-37. Arm pressure decreases were Single 28, 21-43; Wide 26, 16-36; Distal of Pair 16, 12-35; and Proximal of Pair 12, 5-24. Occlusion losses before 120 seconds occurred predominantly on the thigh and with paired applications (ρ < .05). Occlusion losses occurred in six Paired thigh applications, two Single thigh applications, and one Paired arm application. Conclusions: Side-by-side tourniquets achieve occlusion at lower pressures than single tourniquets. Additionally, pressure decreases under tourniquets over time; so all tourniquet applications require reassessments for continued effectiveness.

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Field Sterilization in the Austere and Operational Environment A Literature Review of Recommendations

Will JS, Alderman SM, Sawyer RC 16(2). 36 - 43 (Journal Article)

Special Operations Forces medical providers are often deployed far beyond traditional military supply chains, forcing them to rely on alternative methods for field sterilization of medical equipment. This literature review proposes several alternative methods for both sterilization and disinfection of medical instruments after use and cleaning of skin and wounds before procedures. This article reviews recommendations from sources like the United Nations, the World Health Organization, the Special Operations Forces Medical Handbook, and the Centers for Disease Control and Prevention.

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Preliminary Measures of Instructor Learning in Teaching Junctional Tourniquet Users

Kragh JF, Aden JK, Shackelford S, Dubick MA 16(2). 13 - 15 (Journal Article)

Background: The objective of the present study was to assess the effect of instructor learning on student performance in use of junctional tourniquets. Methods: From a convenience sample of data available after another study, we used a manikin for assessment of control of bleeding from a right groin gunshot wound. Blood loss was measured by the instructor while training users. The data set represented a group of 30 persons taught one at a time. The first measure was a plot of mean blood loss volumes for the sequential users. The second measure was a plot of the cumulative sum (CUSUM) of mean blood loss (BL) volumes for users. Results: Mean blood loss trended down as the instructor gained experience with each newly instructed user. User performance continually improved as the instructor gained more experience with teaching. No plateau effect was observed within the 30 users. The CUSUM plot illustrated a turning point or cusp at the seventh user. The prior portion of the plot (users 1-7) had the greatest improvement; performance did not improve as much thereafter. The improvement after the seventh user was the only change detected in the instructor's trend of performance. Conclusions: The instructor's teaching experience appeared to directly affect user performance; in a model of junctional hemorrhage, the volume of blood loss from the manikin during junctional tourniquet placement was a useful metric of instructor learning. The CUSUM technique detected a small but meaningful change in trend where the instructor learning curve was greatest while working with the first seven users.

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