Military medicine
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Extensive efforts have been directed toward developing an effective vaccine to fight against the Coronavirus Disease 2019 (COVID-19); however, hesitancy to receive COVID-19 vaccinations has become detrimental to overcoming the COVID-19 pandemic. Although the U.S. Military instated a COVID-19 vaccine mandate, some members were still hesitant to receive the vaccine. To determine the efficacy of a program focused on vaccine hesitation, a program evaluation was conducted on a COVID-19 vaccine educational intervention (hereafter COVID-19 Educational Presentation) for trainees at Lackland Air Force Base, TX, in September 2021. Objectives of the educational session included (1) determining the participants' level of confidence that the COVID-19 vaccines are safe and effective, (2) understanding the concern for long-term side effects from COVID-19 vaccinations, and (3) identifying the driving forces behind hesitancy to receive a COVID-19 vaccination. ⋯ The COVID-19 Educational Presentation increased confidence and decreased hesitancy to receive the COVID-19 vaccine. Vaccine educational programs should continue in the military population to help combat misinformation and ensure that our military force is fully vaccinated and able to maintain mission readiness.
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The majority of critical care air transport (CCAT) flights are regulated, meaning that a theater-validating flight surgeon has confirmed that the patient is medically cleared for flight and that evacuation is appropriate. If the conditions on the ground do not allow for this process, the flight is unregulated. Published data are limited regarding CCAT unregulated missions to include the period of troop drawdown at the end of the Afghanistan conflict. The objective of our study was to characterize the unregulated missions within Afghanistan during troop drawdown and compare them to regulated missions during the same timeframe. ⋯ During the troop drawdown in Afghanistan, the number of unregulated missions increased geometrically because the medical footprint was decreasing. During unregulated missions, CCAT providers used ketamine more frequently, consistent with Tactical Combat Casualty Care guidelines. In addition, TBI was the only predictor of vasopressor use and may reflect an attempt to adhere to unmonitored TBI clinical guidelines. Interoperability between CCAT and AE teams is critical to meet mass casualty needs in unregulated mission environments and highlights a need for joint training. It remains imperative to evaluate changes in mission requirements to inform en route combat casualty care training.
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Randomized Controlled Trial
Determining Intraosseous Needle Placement Using Point-of-Care Ultrasound in a Swine (Sus scrofa) Model.
Intraosseous (IO) access is critical in resuscitation, providing rapid access when peripheral vascular attempts fail. Unfortunately, misplacement commonly occurs, leading to possible fluid extravasation and tissue necrosis. Current research exploring the utility of bedside ultrasound in confirming IO line placement is limited by small sample sizes of skeletally immature subjects or geriatric cadaveric models. The objective of this study was to investigate the potential value of ultrasound confirming IO needle placement in a live tissue model with bone densities approximated to the young adult medical or trauma patient. ⋯ Within the context of this study, point-of-care ultrasound with CPD did not reliably confirm IO line placement. However, more accurate assessments of functional and malpositioned catheters were noted in sonographers with greater than 4 years of experience. Future study into experienced sonographers' use of CPD to confirm IO catheter placement is needed.
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Traumatic brain injury (TBI) is an occupational health hazard of military service. Few studies have examined differences in military occupational categories (MOC) which take into consideration the physical demands and job requirements across occupational groups. ⋯ A strength of this analysis is the breakdown of MOC associations with TBI stratified by enlisted and officer ranks, which has been previously unreported. Given the significantly increased odds of service-related TBI reporting within enlisted ranks, further exploration into the location (deployed versus non-deployed) and mechanism (e.g., blast, training, sports, etc.) for these injuries is needed. Understanding injury patterns within these military occupations is necessary to increase TBI identification, treatment, and foremost, prevention.Results highlight the importance of examining specific occupational categories rather than relying on gross categorizations, which do not account for shared knowledge, skills, and abilities within occupations. The quantification of risk among enlisted MOCs suggests a need for further research into the causes of TBI.
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The Korean War (1950-1953) consisted of two phases. The first was a rapid mobile phase, and the second was a slow and stationary phase. During the stationary phase, approximately 3,000 UN troops became infected with a then unknown agent. The resulting illness began with flu-like symptoms and often progressed to a severe hemorrhagic fever leading to kidney failure and death. However, the cause was not to be identified until well over 20 years following the conclusion of the war when Dr. Ho Wang Lee succeeded in isolating Hantavirus from field rodents. The U.S. Military experience with Hantavirus during the Korean War is a case study of the potential impact of war-related environmental change on disease transmission. The lessons learned from this experience should inform future military medical planning and serve as a reminder of the impact that an unknown agent can have on military operations. ⋯ A basic understanding of the ecological mechanisms that maintain species diversity in the local environment coupled with an appreciation for the impact of environmental change on this diversity is of paramount importance for the prevention and mitigation of viral disease outbreaks in the deployed setting. Military medical planners should become familiar with the medical literature of the region in which they will be operating as this literature often describes the agents that will most likely be encountered by U.S. forces.