Formal Methods for Establishing Simulation Interoperability for Military Health System Applications.

INTRODUCTION: Advancements in information technology have facilitated information exchange practices within the Military Health System (MHS), enabling "systems of systems" approaches that broaden and coordinate the set of capabilities available to enhance patient outcomes. This is applicable for MHS modeling and simulation (M&S) applications as well. Learning from successful approaches applied in current interoperability solutions used in the military helps to ensure interoperability practices yield trusted compositions of simulations. MATERIALS AND METHODS: The use of formal methods provides the rigor necessary to unambiguously communicate these approaches across the MHS community. Here, 3 formal methods are proposed to ensure the harmonization of models and alignment of M&S data needed for simulation interoperability for MHS applications. RESULTS: To clarify considerations relevant for establishing simulation interoperability, the proposed formal methods are examined within a notional example of an injury sustained because of blast exposure. The first method applies the principles of semiotics, addressing the coding of information via syntax and semantics, to understand how to align and transform data across simulations within a composition. The second method applies the concepts of well-specified co-simulations, and the use of different techniques, tools, and algorithms to address the composition and synchronization of M&S components. The third method applies the mathematical branch of model theory to codify expert knowledge about concepts, assumptions, and constraints to ensure conceptual alignment within the simulation composition. CONCLUSIONS: Biomedical research must contend with complexity inherent to computational human body modeling, enlisting expert knowledge from multiple domains supporting the development of cross-disciplinary research tools that resolve research foci and associated differences in underlying theories, methods, and applied tools. This is closely related to the broader context of digital engineering for military systems engineering.

Avoidable Hospitalizations in the Military Health System, Fiscal Years 2018-2019.

INTRODUCTION: Ongoing health reforms in the Military Health System (MHS) are expected to shift locations of ambulatory care for up to 1.9 million beneficiaries. We sought to model the impact of this policy by determining potentially avoidable hospitalizations in the MHS based on different primary care settings. MATERIALS AND METHODS: We used the MHS Data Repository to conduct a retrospective cross-sectional study of TRICARE Prime and Prime Plus beneficiaries aged 18 to 64 years during fiscal years 2018-2019. Crude and adjusted risk ratios for each Agency for Healthcare Research and Quality prevention quality indicator based on primary care setting were calcualated to determine the total probability of admission for any of the Agency for Healthcare Research and Quality prevention indicators. RESULTS: We identified a total of 260,690 hospital admissions by patients in the MHS with a designated primary care manager (PCM) from fiscal year 2018 to 2019. Of the total admissions, 11,067 (4.25%) were for Agency for Healthcare Research and Quality prevention quality indicators, 3.63% by direct care PCM at a military treatment facility, and 0.61% by a civilian private sector PCM. Risk of admission was lower for private sector PCMs for urinary tract infection, hypertension, perforated appendix, and angina without the procedure. We did not observe a statistically significant adjusted odds ratio of admission in patients managed by private sector PCMs (1.04 adjusted odds ratio; 95% CI, 0.97-1.11). CONCLUSIONS: Our findings indicate no difference in the likelihood of avoidable hospitalizations for beneficiaries with a private sector PCM when looking at all conditions together. Patients with a private sector PCM are protected against hospitalization for several conditions. Our findings indicate no adverse impact on avoidable hospitalizations for beneficiaries transitioned to private sector care from direct care.

Survey of Current Simulation Based Training in the US Military Health System.

INTRODUCTION: Simulation-based medical training has been shown to be effective and is widely used in civilian hospitals; however, it is unclear how widely and how effectively simulation is utilized in the U.S. Military Health System (MHS). The current operational state of medical simulation in the MHS is unknown, and there remains a need for a system-wide assessment of whether and how the advances in simulation-based medical training are employed to meet the evolving needs of the present-day warfighter. Understanding the types of skills and methods used within simulation programs across the enterprise is important data for leaders as they plan for the future in terms of curriculum development and the investment of resources. The aim of the present study is to survey MHS simulation programs in order to determine the prevalence of skills taught, the types of learners served, and the most common methodologies employed in this worldwide health care system. MATERIALS AND METHODS: A cross-sectional survey of simulation activities was distributed to the medical directors of all 93 simulation programs in the MHS. The survey was developed by the authors based on lists of critical wartime skills published by the medical departments of the US Army, Navy, and Air Force. Respondents were asked to indicate the types of learners trained at their program, which of the 82 unique skills included in the survey are trained at their site, and for each skill the modalities of simulation used, i.e., mannequin, standardized patients, part task trainers, augmented/virtual reality tools, or cadaver/live tissue. RESULTS: Complete survey responses were obtained from 75 of the 93 (80%) MHS medical simulation training programs. Across all skills included in the survey, those most commonly taught belonged predominantly to the categories of medic skills and nursing skills. Across all sites, the most common category of learner was the medic/corpsman (95% of sites), followed by nurses (87%), physicians (83%), non-medical combat lifesavers (59%), and others (28%) that included on-base first responders, law enforcement, fire fighters, and civilians. The skills training offered by programs included most commonly the tasks associated with medics/corpsmen (97%) followed by nursing (81%), advanced provider (77%), and General Medical Officer (GMO) skills (47%). CONCLUSION: The survey demonstrated that the most common skills taught were all related to point of injury combat casualty care and addressed the most common causes of death on the battlefield. The availability of training in medic skills, nursing skills, and advanced provider skills were similar in small, medium, and large programs. However, medium and small programs were less likely to deliver training for advanced providers and GMOs compared to larger programs. Overall, this study found that simulation-based medical training in the MHS is focused on medic and nursing skills, and that large programs are more likely to offer training for advanced providers and GMOs. Potential gaps in the availability of existing training are identified as over 50% of skills included in the nursing, advanced provider, and GMO skill categories are not covered by at least 80% of sites serving those learners.

Is the current referral trend a threat to the Military Health System? Perioperative outcomes and costs after colorectal surgery in the Military Health System versus civilian facilities.

BACKGROUND: TRICARE military beneficiaries are increasingly referred for major surgeries to civilian hospitals under "purchased care." This loss of volume may have a negative impact on the readiness of surgeons working in the "direct-care" setting at military treatment facilities and has important implications under the volume-quality paradigm. The objective of this study is to assess the impact of care source (direct versus purchased) and surgical volume on perioperative outcomes and costs of colorectal surgeries. METHODS: We examined TRICARE claims and medical records for 18- to 64-year-old patients undergoing major colorectal surgery from 2006 to 2015. We used a retrospective, weighted estimating equations analysis to assess differences in 30-day outcomes (mortality, readmissions, and major or minor complications) and costs (index and total including 30-day postsurgery) for colorectal surgery patients between purchased and direct care. RESULTS: We included 20,317 patients, with 24.8% undergoing direct-care surgery. Mean length of stay was 7.6 vs 7.7 days for direct and purchased care, respectively (P = .24). Adjusted 30-day odds between care settings revealed that although hospital readmissions (odds ratio 1.40) were significantly higher in direct care, overall complications (odds ratio 1.05) were similar between the 2 settings. However, mean total costs between direct and purchased care differed ($55,833 vs $30,513, respectively). Within direct care, mean total costs ($50,341; 95% confidence interval $41,509-$59,173) were lower at very high-volume facilities compared to other facilities ($54,869; 95% confidence interval $47,822-$61,916). CONCLUSION: Direct care was associated with higher odds of readmissions, similar overall complications, and higher costs. Contrary to common assumptions regarding volume and quality, higher volume in the direct-care setting was not associated with fewer complications.

Myocarditis Following Immunization With mRNA COVID-19 Vaccines in Members of the US Military.

Importance: Myocarditis has been reported with COVID-19 but is not clearly recognized as a possible adverse event following COVID-19 vaccination. Objective: To describe myocarditis presenting after COVID-19 vaccination within the Military Health System. Design, Setting, and Participants: This retrospective case series studied patients within the US Military Health System who experienced myocarditis after COVID-19 vaccination between January and April 2021. Patients who sought care for chest pain following COVID-19 vaccination and were subsequently diagnosed with clinical myocarditis were included. Exposure: Receipt of a messenger RNA (mRNA) COVID-19 vaccine between January 1 and April 30, 2021. Main Outcomes and Measures: Clinical diagnosis of myocarditis after COVID-19 vaccination in the absence of other identified causes. Results: A total of 23 male patients (22 currently serving in the military and 1 retiree; median [range] age, 25 [20-51] years) presented with acute onset of marked chest pain within 4 days after receipt of an mRNA COVID-19 vaccine. All military members were previously healthy with a high level of fitness. Seven received the BNT162b2-mRNA vaccine and 16 received the mRNA-1273 vaccine. A total of 20 patients had symptom onset following the second dose of an appropriately spaced 2-dose series. All patients had significantly elevated cardiac troponin levels. Among 8 patients who underwent cardiac magnetic resonance imaging within the acute phase of illness, all had findings consistent with the clinical diagnosis of myocarditis. Additional testing did not identify other etiologies for myocarditis, including acute COVID-19 and other infections, ischemic injury, or underlying autoimmune conditions. All patients received brief supportive care and were recovered or recovering at the time of this report. The military administered more than 2.8 million doses of mRNA COVID-19 vaccine in this period. While the observed number of myocarditis cases was small, the number was higher than expected among male military members after a second vaccine dose. Conclusions and Relevance: In this case series, myocarditis occurred in previously healthy military patients with similar clinical presentations following receipt of an mRNA COVID-19 vaccine. Further surveillance and evaluation of this adverse event following immunization is warranted. Potential for rare vaccine-related adverse events must be considered in the context of the well-established risk of morbidity, including cardiac injury, following COVID-19 infection.

Mindset First, Strategy Second: Finding the Savings and Performance in Changing Culture.

Resolving major challenges for health care organizations is a constant challenge. Each military service provides its leaders with superb education and training to lead the constant needs and changes of the mission requirements. The primary trap we leaders may fall into, though, is when we mistake our own expertise and perspectives as the solutions to our organizational challenges. To fully unleash the potential of our people and organizations, we must be deliberate in setting a culture that leverages all the diversity within our organization. At the Carl R. Darnall Army Medical Center, Fort Hood, TX, our leadership team initiated an effort to shift the organizational mindset to create this cultural soil. The seeds of our education, training and strategic initiatives then were able to flourish and address our organizational challenges, but only after we addressed our own leadership mindset gap. By establishing and modeling a foundational outward mindset to ensure our team focused on the impact of our actions, we nurtured a culture that was inquisitive, collaborative, and without blame. In doing so, we eliminated negative financial and safety outcomes that threatened our institution and transformed it into a leading Army Medical Center.

Preparedness of Pharmaceutical Services in Military Organizations: Learning from an Assessment in Brazil.

INTRODUCTION: The participation of armed forces in humanitarian operations and in disaster response is common in many countries. In Brazil, the armed forces have had history in providing health support to victims in emergencies, which also includes the provision of pharmaceutical services (PS). PROBLEM: Even though being essential for the provision of health care in disaster response, the preparedness of PS is not well-addressed in the literature. The use of a comprehensive approach to evaluate preparedness of PS in military institutions may subsidize preparedness measures. The goals of this work were to analyze the preparedness of PS for disaster response and humanitarian aid in military units of a Brazilian armed force institution, and to propose a framework to improve the preparedness of PS in operational medicine. METHODS: An investigation of a cross-sectional design was performed. A logic model and indicators to evaluate preparedness of PS were applied. Data were obtained from official documents, interviews with key stakeholders, and observation of good storage practices (GSP). RESULTS: Identified were: lack of specific budget for medicine procurement in case of disaster, absence of emergency stockpile, proper means for medicine transportation, and records of trained health professionals. An emergency plan, a list of selected medicines, adaptable mobile health care units, and a system for mobilization of health professionals were some of the positive aspects recognized. Different aspects for improvement were acknowledged and recommendations to favor the efficiency and the quality of PS in emergencies were proposed. CONCLUSIONS: The investigation provided valuable results for the planning and execution of responses to disasters and humanitarian aid. The findings and proposed recommendations may be useful for other military organizations similar to those in Brazil.

Confronting challenges to opioid risk mitigation in the U.S. health system: Recommendations from a panel of national experts.

BACKGROUND: Amid the ongoing U.S. opioid crisis, achieving safe and effective chronic pain management while reducing opioid-related morbidity and mortality is likely to require multi-level efforts across health systems, including the Military Health System (MHS), Department of Veterans Affairs (VA), and civilian sectors. OBJECTIVE: We conducted a series of qualitative panel discussions with national experts to identify core challenges and elicit recommendations toward improving the safety of opioid prescribing in the U.S. DESIGN: We invited national experts to participate in qualitative panel discussions regarding challenges in opioid risk mitigation and how best to support providers in delivery of safe and effective opioid prescribing across MHS, VA, and civilian health systems. PARTICIPANTS: Eighteen experts representing primary care, emergency medicine, psychology, pharmacy, and public health/policy participated. APPROACH: Six qualitative panel discussions were conducted via teleconference with experts. Transcripts were coded using team-based qualitative content analysis to identify key challenges and recommendations in opioid risk mitigation. KEY RESULTS: Panelists provided insight into challenges across multiple levels of the U.S. health system, including the technical complexity of treating chronic pain, the fraught national climate around opioids, the need to integrate surveillance data across a fragmented U.S. health system, a lack of access to non-pharmacological options for chronic pain care, and difficulties in provider and patient communication. Participating experts identified recommendations for multi-level change efforts spanning policy, research, education, and the organization of healthcare delivery. CONCLUSIONS: Reducing opioid risk while ensuring safe and effective pain management, according to participating experts, is likely to require multi-level efforts spanning military, veteran, and civilian health systems. Efforts to implement risk mitigation strategies at the patient level should be accompanied by efforts to increase education for patients and providers, increase access to non-pharmacological pain care, and support use of existing clinical decision support, including state-level prescription drug monitoring programs.

A Collaborative To Evaluate And Improve The Quality Of Surgical Care Delivered By The Military Health System.

In an effort to improve surgical quality and reduce clinical variability, the Military Health System (MHS) expanded its participation in the National Surgical Quality Improvement Program to all military hospitals beginning in 2015. This expansion and a partnership with the American College of Surgeons laid the foundation for a surgical quality collaborative in the MHS. We review the history of the program in the MHS and the activities that have contributed to developing the collaborative. We also report promising trends in surgical outcomes at hospitals that were already participating in the program in 2014, when a critical MHS review identified areas for improvement in surgical care. We conclude with a discussion of possible lessons for other health systems and challenges ahead for the MHS, now that full enrollment in the program has been completed.

An Editorial Review of Mobile Health: Implications for the US Military Health System.

INTRODUCTION: The United States Military Health System provides healthcare to a diverse patient population throughout the world. There are three distinct challenges that the Military Health System faces. (1) Providers have varying degrees of clinical training expertise and may be called upon to practice outside their usual scope of care. (2) There is geographic isolation of patients and providers with limited resources while stationed overseas. (3) Patients are at higher risk of breaks in continuity of care because of permanent change of duty stations, deployments, and retirement. MATERIALS AND METHODS: In this article we review the history of mobile health in both the civilian and military sectors, and how mobile health may be used to address the challenges unique to the United States Military Health System. RESULTS: There are many good initiatives in military mobile health, however they are decentralized and different across the services and military treatment facilities. We describe some military specific success stories with improving patient access to care and disease specific mobile health applications implemented. CONCLUSIONS: Mobile health is a powerful platform which can help deliver standardized care in missions around the world and improve access to care for patients at military treatment facilities in the United States. The United States Military Health System would benefit greatly from creating universal mobile health applications to assist providers in patient access to care, military mission readiness, and disease specific modules. Future resources should be dedicated to the development of a mobile health application pool that is universally implemented across services to improve quality of care delivered at home and in theater by military providers.

Achieving Mastery of General Surgery Operative Skill in the Army Healthcare System.

INTRODUCTION: Operative case volumes for military surgeons are reported to be significantly lower than civilian counterparts. Among the concern that this raises is an inability of military surgeons to achieve mastery of their craft. MATERIAL AND METHODS: Annual surgical case reports were obtained from seven Army military treatment facilities (MTF) for 2012-2016. Operative case volume and cumulative operative time were calculated for active duty general surgeons and for individual MTFs. Subgroup analyses were also performed based upon rank. Results were extrapolated to calculate the amount of time it would take to reach a cumulative of 10,000 hours of operative time (the a priori definition for achieving mastery). RESULTS: One hundred and two active duty general surgeons operated at the seven MTFs during the study period and met the inclusion criteria. The average surgeon performed 108 ± 68 cases/year. The average surgeon operated 122 ± 82 hours/year. At this rate, it would take over 80 years to reach mastery of surgery. When stratified based upon rank, Majors averaged 113 ± 75 hours/year, Lieutenant Colonels averaged 170 ± 100 hours/year, and Colonels averaged 136 ± 101 hours/year (p < 0.05). When stratified based upon individual MTF, surgeons at the busiest facility averaged 187 ± 103 hours/year and those at the least busy facility averaged 85 ± 56 hours/year (p < 0.05). CONCLUSIONS: Obtaining mastery of general surgery is a nearly impossible proposition given the current care models at Army MTFs. Alternative staffing and patient care models should be developed if Army surgeons are to be masters at their craft.

Assessing Low-Value Health Care Services In The Military Health System.

Low-value care is the provision of procedures and treatments that provide little or no benefit to patients while increasing the cost of health care. This study examined the provision of low-value care in the Military Heath System (MHS), comparing care delivered in civilian health care facilities (purchased care) to care delivered in Department of Defense-controlled health care facilities (direct care). We used 2014 TRICARE claims data to evaluate the provision of nineteen previously developed measures of low-value care, including diagnostic, screening, and monitoring tests and therapeutic procedures. Of these, six measures appeared more frequently in direct care, while eleven measures appeared more frequently in purchased care-which may reflect the outsourcing of specialist services from the former to the latter. Magnetic resonance imaging for low back pain emerged as the most common low-value service in both care environments and could represent a target for future interventions. As the MHS and the United States increasingly focus on value-based care, the identification of low-value services accompanied by efforts to reduce such inefficient practices could provide greater quality of care at a lower cost.

A Survey of Family Planning Training, Knowledge, and Practices Among Health Care Providers Within the Military Health System at Joint Base Lewis-McChord.

INTRODUCTION: Within the active duty U.S. military population, the age-adjusted unintended pregnancy rate is higher than the national average. Unplanned pregnancy within the military impacts individual and unit medical readiness. Contraceptive education and availability are means to reduce unintended pregnancy rates; health care providers are key facilitators in provision of contraception. Understanding provider knowledge and practices related to contraceptive provision may identify strengths and gaps in order to provide focal points for sustainment or improvement in family planning practices. The purpose of this study was to assess family planning knowledge, training, and practices among health care providers serving military and dependent beneficiaries within the military health care system at Fort Lewis, Washington. MATERIAL AND METHODS: This was a cross-sectional survey of health care providers on Joint Base Lewis-McChord in Tacoma, Washington who deliver health care services to U.S. uniformed service members and their dependents in varied settings, including outpatient clinics and a tertiary care center. The survey included questions regarding prior contraceptive training, and current contraceptive knowledge and practices. Survey results were evaluated using descriptive and bivariate analyses. The study was approved by both Institutional Review Boards at Emory University and at Madigan Army Medical Center. RESULTS: Overall, 79 eligible health care providers completed the survey. Eighty-six percent of women's health providers consistently ("always or most of the time") provided family planning services to female service members, compared with 38% of primary care providers. Women's health providers were more likely to counsel by method effectiveness and adapt their counseling to consider patients' reproductive life plans. There were no differences between provider type in considering service members' deployment status during contraceptive counseling. Overall, providers identified the correct effectiveness of long-acting contraceptive methods, but tended to overestimate the effectiveness of short-acting methods. CONCLUSIONS: Family planning services available to service members may be improved through enhanced provider education, targeting efficacy-based counseling and identification of barriers to access and provision of long-acting reversible contraceptive methods.

No Racial Disparities In Surgical Care Quality Observed After Coronary Artery Bypass Grafting In TRICARE Patients.

In the US, racial disparities in outcomes following coronary artery bypass grafting (CABG) are well documented. TRICARE insurance data represent a large population with universal insurance that allows for the robust assessment of the impact of such insurance on disparities in health care. This study examined racial differences in specific aspects of surgical care quality following CABG, using metrics endorsed by the National Quality Forum that included the prescription of beta-blockers and statins at discharge and thirty-day readmissions. There were no risk-adjusted differences in outcomes between African American and white patients insured through TRICARE. Our study provides a window into the potential impacts of universal insurance and an equal-access health care system on racial disparities in surgical care quality following CABG.

Families With TRICARE Report Lower Health Care Quality And Access Compared To Other Insured And Uninsured Families.

Children in military families, who receive health insurance through the TRICARE program, face barriers to care such as frequent relocations, unique behavioral health needs, increased complex health care needs, and lack of accessible specialty care. How TRICARE-insured families perceive health care access and quality for their children compared to their civilian peers' perceptions remains unknown. Using data from the Medical Expenditure Panel Survey, we found that TRICARE-insured families were less likely to report accessible or responsive care compared to civilian peers, whether commercially or publicly insured or uninsured. Military families whose children had complex health or behavioral health care needs reported worse health care access and quality than similar nonmilitary families. Addressing these gaps may require military leaders to examine barriers to achieving acceptable health care access across military treatment facilities and off-base nonmilitary specialty providers, particularly for children with complex health or behavioral health needs.