Military medicine
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Inhaled nitric oxide (INO) is a selective pulmonary vasodilator delivered from compressed gas cylinders filled to 2,200 psig (137.8 bar) with 800 ppm of NO in a balance of nitrogen. NO is currently FDA-approved for use in term or near-term infants with hypoxemia and signs of pulmonary hypertension in the absence of cardiac disease. INO has also been shown to improve oxygenation in adults with refractory hypoxemia. Current doctrine precludes the use of NO during military aeromedical transport owing to the requirement for large compressed gas cylinders. We performed a bench evaluation of 2 delivery systems that create NO from room air without the need for pressurized cylinders. ⋯ Both devices delivered a reliable INO dose at ground level. Altitude significantly affected INO delivery accuracy at 14,000 ft (4,267 meter) (P < 0.01) with both devices and at 8,000 ft (2,437 meter) (P < 0.01) with LungFit. Differences in INO dosage were not statistically significant with the Odic device at 8,000 ft (2,437 meter)(P > 0.05) although there were large variations with selected ventilator settings. With careful monitoring, devices creating INO from room air without cylinders could be used during aeromedical transport without the need for pressurized cylinders.
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Occupational burnout among healthcare workers has continued to climb, impacting workforce well-being, patient safety, and retention of qualified personnel. Burnout in military healthcare workers, who have had the added stress of increased deployments, remains unknown. Although certain leadership styles have been associated with lower rates of burnout, the association between adaptive leadership and burnout in military healthcare has not previously been described. The aim of this study is to examine the role of adaptive leadership in burnout among military healthcare workers following the Coronavirus Disease 2019 (COVID-19) pandemic. ⋯ The findings of burnout in this military healthcare worker population were higher than have previously been described in healthcare workers or other military personnel, and the significant associations between adaptive leadership and burnout suggest the protective role of adaptive leadership in healthcare systems to address burnout. Implementing adaptive leadership training or selecting leaders with more adaptive leadership skills may be beneficial in a health care system where employee burnout is prevalent, especially during periods stressed by adaptive problems. This may be especially important in military healthcare when active duty service obligations preclude attrition in the presence of additional stressors such as deployments and Federal Emergency Management Agency responses. Further research is needed to determine whether this intervention is successful at reducing healthcare burnout.
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The cervical spine, pivotal for mobility and overall body function, can be affected by cervical spondylosis, a major contributor to neural disorders. Prevalent in both general and military populations, especially among pilots, cervical spondylosis induces pain and limits spinal capabilities. Anterior Cervical Discectomy and Fusion (ACDF) surgery, proposed by Cloward in the 1950s, is a promising solution for restoring natural cervical curvature. The study objective was to investigate the impacts of ACDF implant design on postsurgical cervical biomechanics and neurorehabilitation outcomes by utilizing a biofield head-neck finite element (FE) platform that can facilitate scenario-specific perturbations of neck muscle activations. This study addresses the critical need to enhance computational models, specifically FE modeling, for ACDF implant design. ⋯ This study emphasized the use of a biofidelic head-neck model to assess ACDF implant designs. Our results indicated that including neck muscles and head structures improves biomechanical outcome measures. Furthermore, unlike Ti implants, our findings showed that PEEK implants maintain neck motion at the affected level and reduce disk stresses. Practitioners can use this information to enhance postsurgery outcomes and reduce the likelihood of secondary surgeries. Therefore, this study makes an important contribution to computational biomechanics and implant design domains by advancing computational modeling and theoretical knowledge on ACDF-spine interaction dynamics.
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A number of reports over the past 2 decades have provided recommendations for reducing the rate of suicide in the U.S. Armed Forces. Notwithstanding their veracity, few of these recommendations have been fully implemented. ⋯ Implementation of recommendations to reduce suicide deaths in the military must go through several deliberative steps in order to be prioritized, funded, and ultimately adopted by the military. As researchers and external stakeholders become more familiar with this process, recommendations for future prevention activities can better overcome barriers to implementation.
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Continuous extracorporeal perfusion (ECP), or machine perfusion, holds promise for prolonged skeletal muscle preservation in limb ischemia-reperfusion injury. This study aimed to extend the amputation-to-replantation time window from currently 6 hours to 33 hours using a 24-hour ECP approach. ⋯ The use of a 24-hour ECP has successfully extended limb preservation to 33 hours. The modified histidine-tryptophan-ketoglutarate perfusate demonstrated its ability for muscle protection. This innovative approach not only facilitates limb replantation after combat injuries, surmounting geographical barriers, but also broadens the prospects for well-matched limb allotransplants across countries and continents.