Naval Medical Center Portsmouth Research Articles

Expanding capabilities to evaluate readiness for return to duty after mTBI: The CAMP study protocol.

The purpose of this observational longitudinal study is to: 1- establish typical performance parameters for ADSM on the CAMP test battery 2- determine the element of the CAMP battery that demonstrate the greatest differences from standard performance and serve as predictors for successful return to duty and 3- develop clinician-facing feedback algorithms and displays and 4-develop materials for clinical dissemination. This ongoing multi-site study is currently funded through the CDMRP and has been approved by the Naval Medical Center Portsmouth IRB. ADSM undergoing post-concussion rehabilitation at the Intrepid Spirit Centers will be tested within one week of their initial Physical Therapy evaluation and after completing Physical Therapy. Control participants will include males, females, and ADSM from the Special Operations community. Participants will complete an intake form that includes questions about demographics, military service, deployment and concussion history, and profile and duty status. Other measures include those that explore concussion symptoms, sleep quality, post-traumatic stress, and perceptions of resilience. The CAMP includes three separate 10-15 minute tasks. Movement is recorded by wearable inertial sensors and heart rate variability is recorded with a POLAR10 monitor. The "Run-Roll" task requires rapid position changes, combat rolls and quick running forwards and backwards while carrying a simulated weapon. Visual stability before and after the task is also performed. The "Dual-Task Agility" task includes rapid running with and without a weighted vest and a working memory task. The "Patrol Exertion" task requires repeated stepping onto an exercise step while watching a virtual patrol video. Additional tasks include monitoring direction of travel, observing for signs of enemy presence, and reacting to multiple auditory signals embedded in the video. Measures that evaluate relevant skills are vital to support safe return to duty for ADSM who may be exposed to imminent danger as part of training or mission demands. The CAMP is designed to be an ecologically valid and clinically feasible assessment that may be more sensitive to capturing subtle impairments that impact duty performance as test skills are integrated into dual and multi-tasks that reflect occupational demands. Assessment results may serve as a more robust indicator of readiness for full return to duty after concussion.

External Validation and Updating of a Statistical Civilian-Based Suicide Risk Model in US Naval Primary Care

Suicide remains an ongoing concern in the US military. Statistical models have not been broadly disseminated for US Navy service members. To externally validate and update a statistical suicide risk model initially developed in a civilian setting with an emphasis on primary care. This retrospective cohort study used data collected from 2007 through 2017 among active-duty US Navy service members. The external civilian model was applied to every visit at Naval Medical Center Portsmouth (NMCP), its NMCP Naval Branch Health Clinics (NBHCs), and TRICARE Prime Clinics (TPCs) that fall within the NMCP area. The model was retrained and recalibrated using visits to NBHCs and TPCs and updated using Department of Defense (DoD)-specific billing codes and demographic characteristics, including expanded race and ethnicity categories. Domain and temporal analyses were performed with bootstrap validation. Data analysis was performed from September 2020 to December 2022. Visit to US NMCP. Recorded suicidal behavior on the day of or within 30 days of a visit. Performance was assessed using area under the receiver operating curve (AUROC), area under the precision recall curve (AUPRC), Brier score, and Spiegelhalter z-test statistic. Of the 260 583 service members, 6529 (2.5%) had a recorded suicidal behavior, 206 412 (79.2%) were male; 104 835 (40.2%) were aged 20 to 24 years; and 9458 (3.6%) were Asian, 56 715 (21.8%) were Black or African American, and 158 277 (60.7%) were White. Applying the civilian-trained model resulted in an AUROC of 0.77 (95% CI, 0.74-0.79) and an AUPRC of 0.004 (95% CI, 0.003-0.005) at NBHCs with poor calibration (Spiegelhalter P < .001). Retraining the algorithm improved AUROC to 0.92 (95% CI, 0.91-0.93) and AUPRC to 0.66 (95% CI, 0.63-0.68). Number needed to screen in the top risk tiers was 366 for the external model and 200 for the retrained model; the lower number indicates better performance. Domain validation showed AUROC of 0.90 (95% CI, 0.90-0.91) and AUPRC of 0.01 (95% CI, 0.01-0.01), and temporal validation showed AUROC of 0.75 (95% CI, 0.72-0.78) and AUPRC of 0.003 (95% CI, 0.003-0.005). In this cohort study of active-duty Navy service members, a civilian suicide attempt risk model was externally validated. Retraining and updating with DoD-specific variables improved performance. Domain and temporal validation results were similar to external validation, suggesting that implementing an external model in US Navy primary care clinics may bypass the need for costly internal development and expedite the automation of suicide prevention in these clinics.

Speed, Skill Retention, and End User Perceptions of iTClamp Application by Navy Corpsmen on a Manikin Model of Femoral Hemorrhage.

Tactical Combat Casualty Care guidelines recommend packing junctional wounds with gauze, applying direct pressure for 3 minutes, and then securing with an external pressure dressing. This method is time-consuming, which can be problematic in a combat environment. Alternatively, the iTClamp has documented efficacy and rapid application. However, no studies have evaluated device application by military prehospital medical providers, such as Navy corpsmen, or their user experience with the device. Research data derived from a protocol were approved by the Naval Medical Center Portsmouth's Institutional Review Board in compliance with all applicable federal regulations governing the protection of human subjects. Navy corpsmen with the current Tactical Combat Casualty Care certification applied the iTClamp or standard pressure dressing on a manikin model of femoral hemorrhage in a crossover study design. Each participant used both devices in a randomized fashion. Time to application was recorded, and participants completed Likert scale surveys to evaluate both devices for preference, ease of use, and physical assessment. A repeat assessment was performed 1 month later to assess skill atrophy. Repeated-measures ANOVA was used to compare application time. Likert scale survey data were analyzed using Mann-Whitney and Wilcoxon tests to compare survey data within and between time points, respectively. The application of the iTClamp was more than twice as fast as the application of pressure dressings at both the initial and follow-up evaluations. There was no statistically significant difference in application times between the first evaluation and the 30-day assessment of either device, indicating no atrophy in skill. While 65% and 52% of the participants expressed preference in for the iTClamp in their surveys during the initial and follow-up respective visits, the difference in preference was not statistically significant for either the initial or the follow-up survey. Open-ended survey responses yielded both perceived advantages and disadvantages for each treatment option. In austere or hostile environments, speed of treatment and extrication can have significant implications for the safety of both the patient and the medical providers. Hemorrhage control interventions must be both effective and easy to use for a prehospital provider to ensure its efficacy in a live battlefield situation. The iTClamp is small, simple, and fast to use, but its wide adoption in the field may be based on limitations perceived by participants, including narrow indications for use. However, based on our findings, it is reasonable to field the iTClamp depending on provider preference.

The Association of Skin Cancer Prevention Knowledge, Sun-Protective Attitudes, and Sun-Protective Behaviors in a Navy Population.

U.S. Navy service members are primarily between the ages of 18 and 30 years and often required to be outside for extended periods of time in geographical locations with increased and often unfamiliar ultraviolet indexes that collectively increase their risk for skin cancer. Skin cancer is the country's most common form of cancer, yet there is a paucity of skin cancer prevention literature, especially within the U.S. Navy. The purpose of this study was to describe skin cancer risk and skin cancer prevention "cues-to-action" and to determine if skin cancer prevention knowledge was associated with sun-protective attitudes (e.g., prevention perceptions, benefits, threats, barriers, and sun-protective behavior self-efficacy) and sun-protective behaviors (e.g., wearing long sleeve shirts and using sunscreen and not deliberately exposing skin for a tan) in a Navy population. A cross-sectional, descriptive, correlational design was utilized, and the study approval was obtained by the Naval Medical Center Portsmouth Institutional Review Board. Two-hundred twenty-nine active duty Navy service members aged 18-30 years who presented to primary care for their periodic health assessment completed the Brief Skin Cancer Risk Assessment and the Skin Cancer Survey. Descriptive statistics were utilized to assess service members' perceptions and knowledge regarding skin cancer prevention along with sociodemographic characteristics. The Spearman rank-order correlation and the Mann-Whitney U test were used to assess associations. P-values <.05 were used to determine statistical significance. Skin cancer prevention knowledge was significantly related to sun-protective behavior self-efficacy (r = 0.218, P = .001), benefits (r = 0.271, P ≤ .001), sun protection behaviors (r = 0.152, P = .024), skin cancer risk (r = 0.256, P = .001), current frequency of high-risk sun behavior (r = 0.183, P = .006), past frequency of high-risk sun behavior (r = 0.219, P = .001), sun exposure (U = 4,813.50, P = .005), tanning bed use (U = 3,154.50, P = .031), and training (U = 4,099.50, P = .005). Integrating skin cancer education into primary care visits (i.e., periodic health assessments) may improve Navy service members' modifiable sun-protective attitudes and behaviors and may contribute to lowering future skin cancer rates.

Military Resident Physician Training Burden: Quantifying Requirements Across the Military Health Care System.

The Military Health Care System trains approximately 1,500 resident physicians in over 100 specialties. In addition to requirements for their specific program, active duty military trainees must complete military-specific trainings that vary by the branch of service. Excessive training requirements could contribute to physician burnout and/or negatively affect patient care. Therefore, the objective of this study was to quantify the time active duty resident physicians dedicate to this training, stratified by the branch of service. The study protocol was submitted to the Clinical Investigations Department at Naval Medical Center Portsmouth (Portsmouth, VA, USA) and deemed exempt from the Institutional Review Board review. We conducted a descriptive study in 2021 wherein lists of all training requirements were obtained from a military treatment facility in the Army, Navy, and Air Force supporting residency training. Individual requirements were reviewed and sorted into military-specific and general categories. Information was gathered on duration, frequency, and platform for applicable requirements. Residents are required to complete a mean of 17.2 hours of training annually, of which 11.2 hours were military-specific. This consisted of 50, 57, and 53 individual requirements for Army, Navy, and Air Force personnel, respectively. Army resident physicians had the greatest time burden of military-specific training at 14.8 hours/year, followed by the Air Force and Navy (10.2 and 8.7 hours/year, respectively). Annually, active duty resident physicians spend the equivalent of more than two work days completing additional training requirements on multiple platforms. Standardizing training requirements and platforms across the Military Health Care System and aligning required trainings with job responsibilities could free up additional time for patient care, potentially decreasing fatigue and burnout.

Optimal Evaluation for DAT-Positive Newborns Remains Elusive

Source: Papacostas MF, Robertson DW, McLean MD, et al. Sixth-hour transcutaneous bilirubin and need for phototherapy in DAT positive newborns. Pediatrics. 2022;149(3):e2021054071; doi:10.1542/peds.2021-054071Investigators from Naval Medical Center Portsmouth (NMCP), Portsmouth, VA, and the University of Pittsburgh School of Medicine, Pittsburgh, PA, conducted a retrospective study to assess the utility of a transcutaneous bilirubin (TcB) measurement at 6 hours of age in predicting the need for phototherapy at ≤24 hours of age in newborns with ABO incompatibility. Data on neonates born at NMCP between May 2013 and March 2017 who were ≥35 weeks’ gestation were reviewed. Infants were classified as having ABO incompatibility if born to mothers with type O blood and negative antibody screens and themselves had type A or B blood with positive direct antiglobulin tests (DAT).At NMCP, blood is obtained from newborns with ABO incompatibility at 6 hours of age for total serum bilirubin (TSB), hemoglobin, hematocrit, and reticulocyte counts; providers are encouraged to also obtain a TcB measurement. Infants with paired blood test and TcB results were included in study analyses; demographic and clinical data were abstracted from the medical records of these newborns. The primary study outcome was need for phototherapy at ≤24 hours of age, as determined by the attending pediatrician. Demographic and clinical characteristics associated with this outcome in univariate analyses were included in 2 logistic models; 1 with blood test results and no TcB levels, and the other with TcB results and no blood test data. Receiver operator characteristic (ROC) curves were constructed and the area under the curve (AUC) calculated. The positive and negative predictive values (PPV and NPV, respectively) of different TcB cutoff values in predicting the need for phototherapy at ≤24 hours also were determined.Among 10,942 newborns born at ≥35 weeks’ gestation, 5,167 (47.2%) were born to mothers with type O blood, DAT was positive in 829 (7.6%), and 772 (7.1%) infants met criteria for ABO incompatibility. A total of 346 newborns had paired blood test and TcB results, 21% of whom were treated with phototherapy at ≤24 hours of age. In univariate analyses, birth weight, type B blood, TSB level, reticulocyte count, and TcB were significantly associated with the need for phototherapy at ≤24 hours. In the multivariate model that excluded TcB results, only TSB and reticulocyte counts were independently associated with the outcome (odds ratio [OR], 12.6; 95% CI, 6.1, 25.6; and OR, 1.5; 95% CI, 1.0, 2.1, respectively). In the other model, TcB was significantly associated with the need for phototherapy at ≤24 hours of age (OR, 3.1; 95% CI, 2.4, 4.0). The ROC AUCs were similar for the 2 models (0.96 and 0.90, respectively). A TcB value of ≤3.0 mg/dL yielded a NPV of 98%, a value of ≥5.3 mg/dL, and a PPV of 85% for predicting the need for phototherapy at ≤24 hours of age.The authors conclude that a 6-hour TcB level was predictive of the need for phototherapy at ≤24 hours of life in newborns with ABO incompatibility.Dr Von Kohorn has disclosed no financial relationship relevant to this commentary. This commentary does not contain a discussion of an unapproved/investigative use of a commercial product/device.The most recent (although outdated) AAP clinical practice guidance advises universal pre-discharge assessment of bilirubin level in newborns, with treatment based on risk stratification combining bilirubin level and risk factors.1,2 Isoimmune hemolytic disease is a risk factor both for severe hyperbilirubinemia and neurotoxicity.2 Although recent evidence about the risks of phototherapy has called universal screening into question, close monitoring of infants with risk factors remains a priority.3,4The current investigators demonstrate that 6-hour blood and TcB tests predict the need for phototherapy at or before 24 hours of life. The investigators do not describe the trend in phototherapy use. They suggest using TcB values that correspond to 98% NPV and 85% PPV to guide clinical practice at 6 hours of life. Importantly, the study does not indicate whether 6-hour testing or the proposed TcB values reduce key outcomes such as severe hyperbilirubinemia, bilirubin encephalopathy, hospital readmission, or cost. The authors report that significantly more infants who received TcB measurements were admitted to the NICU compared to those who received only blood tests, but they do not comment on the explanations for this finding that implies possible overtreatment. In a web comment on the original article by Papacostas, Mazar astutely states that phototherapy should be started at currently recommended thresholds, regardless of projected risk.5 The authors’ reply states “it would be beneficial to identify [infants projected to need phototherapy] and start treatment earlier.” Evidence for such benefit is not presented.Six-hour bilirubin testing predicts phototherapy at ≤24 hours of life, with TcB performing nearly as well as TSB plus reticulocyte count. The relationship of 6-hour testing to clinical outcomes remains unknown.

Medical data formatting to improve physician interpretation speed in the Military Healthcare System.

The purpose of this project was to improve ease and speed of physician comprehension when interpreting daily laboratory data for patients admitted within the Military Healthcare System (MHS). A JavaScript program was created to convert the laboratory data obtained via the outpatient electronic medical record (EMR) into a "fishbone diagram" format that is familiar to most physicians. Using a balanced crossover design, 35 internal medicine trainees and staff at Naval Medical Center Portsmouth were asked to complete timed comprehension tests for laboratory data sets formatted in the outpatient EMR's format and in fishbone diagram format. The number of responses per second and error rate per response were measured for each format. Participants were asked to rate relative ease of use for each format and indicate which format they preferred. Comprehension speed increased 37% (6.28 seconds per interpretation) with the fishbone diagram format with no observed increase in errors. Using a Likert scale of 1-5 (1 being hard, 5 easy), participants indicated the new format was easier to use (4.14 for fishbone vs 2.14 for table) with 89% expressing preference for the new format. The publically available web application that converts tabular lab data to fishbone diagram format is currently used 10000-12000 times per month across the MHS, delivering significant benefit to the enterprise in terms of time saved and improved physician experience. This study supports the use of fishbone diagram formatting for laboratory data for inpatients within the MHS.

Novel Internal Medicine Residency Ultrasound Curriculum Led by Critical Care and Emergency Medicine Staff.

Point-of-care ultrasound (POCUS) is an integral aspect of critical care and emergency medicine curriculums throughout the country, but it has been slow to integrate into internal medicine residency programs. POCUS has many benefits for internal medicine providers, guiding diagnostic decisions and aiding in procedures. Additionally, POCUS is a convenient and portable resource specifically for internal medicine providers in the military when practicing in deployed or critical care settings. Critical care and emergency medicine clinicians are excellent resources to lead these courses. We sought to develop a new POCUS curriculum for internal medicine residents within the Naval Medical Center Portsmouth Internal Medicine Residency program with the support of emergency medicine and critical care medicine staff to lead and oversee the training. The project's aim was to increase internal medicine resident confidence with POCUS by 20% and proficiency with POCUS as evidenced by pretest and posttest analysis by 10%. The program consisted of a 2-day, 9-hour, introductory course, combining lecture with hands-on scanning taught by emergency medicine physicians who had completed emergency ultrasound fellowship-level training. This was followed by a longitudinal component of hands-on scanning throughout the academic year built into the residents' schedules. Emergency and critical care medicine ultrasound staff reviewed all studies for quality assurance (QA). The residents were given both precourse and post-course knowledge tests and confidence surveys, which utilized a 5-point Likert scale. The knowledge assessments were analyzed with a paired t-test, and the Likert scale data were analyzed using the Wilcoxon signed-rank test. The Naval Medical Center Portsmouth Institutional Review Board deemed this project nonhuman subjects' research. Twenty participants were enrolled, with 10 (50%) of those enrolled completing all course requirements. The average precourse knowledge assessment score was 76.60%, and postcourse assessment score was 80.95% (+4.35%, P = .33). The confidence survey scores were initially 73.33% and improved to 77.67% (+4.34%, P = .74). A curriculum comprised of a 9-hour workshop followed by a longitudinal hands-on experience can provide improvement in internal medicine resident POCUS knowledge and confidence. This model emphasizes the benefit of emergency and critical care cooperation for ultrasound training and provides an emphasis on medicine-relevant scans and longitudinal training.

Impact of a Multidisciplinary Long-Term Opioid Therapy Safety Program at a Military Tertiary Academic Medical Center.

In light of the ongoing opioid crisis, Naval Medical Center Portsmouth (NMCP) created the Long-Term Opioid Therapy Safety (LOTS) program to reduce risks and improve long-term opioid therapy outcomes. Our primary outcome was change in compliance with the recommended safety metrics. This is a retrospective cohort study performed at NMCP, a large military academic medical center providing comprehensive medical care to DoD beneficiaries. The NMCP LOTS program provides both patient and provider narcotic education as well as medical record auditing. The NMCP LOTS program promotes adherence to published CDC, the DVA, and DoD guidelines. Anonymized data were compiled each fiscal quarter and were analyzed retrospectively. Adult patients prescribed opioids for at least 90 days without a gap of 30 days between prescriptions were included in this study. The investigators recorded and reported provider compliance with LOTS metrics over the same period. Compliance with the recommended safety metrics improved. We noted a decrease in the number of long-term opioid patients, concurrent benzodiazepine prescriptions, and patients prescribed greater than 90 morphine equivalents per day during the observation period. The number of naloxone prescriptions for LOTS patients also increased, reflecting improved guideline adherence. Systematic education and feedback to providers are effective in creating a system and culture of opioid reduction, safe opioid prescribing, and system accountability. This article presents a comprehensive approach to modifying prescribing patterns of long-term opioids in a large healthcare system.

An Innovative Simulation Curriculum to Train General Surgery Residents and Medical Students on Four Commonly Encountered Obstetric and Gynecologic Procedures.

Lack of obstetric and gynecologic (OBGYN) procedure exposure during general surgery residency was recognized as a training gap for military general surgery residents by U.S. Navy trauma and general surgeons serving as simulation leads for the Naval Medical Center Portsmouth general surgery resident program. Program faculty requested the authors develop and implement a recurring simulation curriculum to address this training gap. The primary goal of the simulation curriculum was to increase exposure to and confidence in performing four commonly encountered OBGYN procedures in a deployed setting: spontaneous vaginal delivery (SVD), Bartholin's cyst incision and drainage with Word catheter placement, cesarean delivery, and total abdominal hysterectomy (TAH). We hypothesized that trainees exposed to the new simulation curriculum would demonstrate an increase in knowledge and confidence in these four commonly encountered OBGYN procedures. The study utilized a pre- and postdesign to determine the efficacy of a newly developed simulation curriculum as measured by participants' knowledge and confidence levels. The annual curriculum was 4 hours in duration and included a targeted lecture followed by the administration of the four OBGYN simulation skills stations: SVD, Bartholin's, cesarean delivery, and total abdominal hysterectomy. Proctors for the simulation stations consisted of OBGYN teaching faculty who had at least 5 years of clinical teaching experience and were experienced simulation instructors. Precourse and postcourse knowledge and confidence were self-rated on a 5-point Likert scale. The learners rated the course using the Simulation Design Scale. Likert scale data were analyzed using the paired Wilcoxon rank sum test. Descriptive statistics were reported for the Simulation Design Scale. P < 0.05 was considered to be statistically significant. This project was classified as nonhuman subjects' research by the Naval Medical Center Portsmouth Institutional Review Board. Over the 2 years since curriculum implementation, 34 trainees participated in the curriculum; no trainees have had the curriculum twice. All trainees confirmed training gaps on baseline self-assessment of knowledge and confidence of all four OBGYN procedures with the most confidence reported for SVD (2.83 mean). Self-rated knowledge and confidence levels improved significantly in all four of the simulated procedures for all 34 participants (P < 0.001). Postcurricular surveys (82% response rate, 28/34) indicated a high satisfaction with all areas of the simulation training (4.74/5.0). The implemented curriculum increased general surgery trainees' knowledge and confidence in four commonly encountered OBGYN procedures and demonstrated a high level of learner satisfaction and sustainability. The curriculum exhibits high educational impact and could be a valuable adjunctive training for other non-OBGYN physicians who may need to provide OBGYN care in military environments.

Effectiveness of the Ophthalmological Training Component of the STOMP (Simulation Training for Operational Medical Providers) Curriculum.

Introduction: Simulation has been used in medicine to train clinicians to manage a variety of clinical scenarios. A key adaptation of the use of simulation in military healthcare occurred in 2015 with the development of the STOMP (Simulation Training for Operational Medical Providers) curriculum, a specific curriculum designed for the intern (PGY-1) trained physicians being sent into the military to practice primary care. Despite showing the curriculum’s influence on self-perceived comfort scores, no study has determined whether simulation is an effective means of improving general medical officer (GMO) physicians’ skills compared to other traditional styles of education. Specifically, this study sought to determine whether simulation-based education (SBE) of ophthalmologic skills improves GMO physicians’ clinical performance, as compared to traditional didactic-based instruction.Methods: The study, conducted at Naval Medical Center Portsmouth, included GMO physicians who were enrolled in the 2019 STOMP class. Following a brief overview of the study, GMO physicians who elected to participate in the study were randomized to either SBE or lecture-based training for three commonly used ophthalmological procedures: slit lamp exam, tonometry, and corneal foreign body removal. After completing the simulation and lecture-based education training sessions, participants' procedural performance was evaluated utilizing a locally developed performance checklist, and completion time for each of the three procedures was recorded. Data were analyzed using the t-test and Mann-Whitney test. A significance level of 0.05 was considered to be statistically significant.Results: Of the 50 consented participants, 46 completed the study. The mean overall completion scores for the performance checklists were significantly higher for the SBE group (n=26) compared to the lecture group (n=20) [80% (95% CI 78-82%) vs 41% (95% CI 35-47%), respectively]. Time to completion of the individual tasks was also significantly shorter for the SBE group compared to the lecture group (with mean differences ranging from 27 to 126 seconds, all p<.05).Conclusions: Simulation-based training appeared to be more effective at teaching three ophthalmological procedures (slit lamp exam, tonometry, and corneal foreign body removal) to GMO physicians compared to didactic-based instruction alone.

Red-Green Tactical Lighting Is Preferred for Suturing Wounds in a Simulated Night Environment.

Delivering medical care in nighttime conditions is challenging, as 25% of Special Operations medical Operators have reported that problems with lighting contributed to poor casualty outcomes. Red light is often used in nighttime operations but makes blood detection difficult and diminishes depth perception and visual acuity. Red-green combination lighting may be superior for differentiating blood from tissue and other fluids but had not been tested versus red-only or green-only lighting for combat-related medical procedures, such as wound suturing. Dark-adapted medical resident physicians (N = 24) sutured 6cm long, 3cm deep, full-thickness lacerations in deceased swine under red-only, green-only, and red-green lighting provided by a tactical flashlight using a randomized within-subjects design. Time to suture completion, suture quality, user ratings, and user preference data were contrasted at p < .05. This study was approved by Naval Medical Center Portsmouth IRB. Suture completion time and suture quality were similar across all lighting conditions. Participants rated red-green lighting as significantly easier for identifying blood, identifying instruments, and performing suturing (p < .01). Red-green lighting was preferred by 83% of participants compared to 8% each for red-only and green-only (p < .001). Pending further study under tactical conditions, red-green lighting is tentatively recommended for treating battlefield wounds in low-light environments.

329 Clinical Utility of Coronary Computed Tomographic Angiography in the Emergency Department at Naval Medical Center Portsmouth

329 Clinical Utility of Coronary Computed Tomographic Angiography in the Emergency Department at Naval Medical Center Portsmouth

Implementing Evidence-Based Practice Facilitators: A Case Series.

In 2017, the TriService Nursing Research Program completed a strategic planning session, which identified key barriers to implementing evidence-based practice (EBP) within the U.S. Military Health System (MHS) including a focus on readiness training and deployments, frequent staff moves for military members, and relatively junior nurses in clinical roles. To facilitate EBP at individual military treatment facilities (MTFs), an EPB Facilitator role was developed using an evidence-based model and based on validated EBP competencies. This new role was implemented at four MTFs in 2018: Naval Medical Center Portsmouth, 59th Medical Wing at Joint Base San Antonio Lackland, Naval Medical Center San Diego, and David Grant USAF Medical Center at Travis Air Force Base. This case series provides a description of the initial implementation of this role. Common enablers and challenges were identified from the experiences at all four sites. These included the importance of incorporating efforts into existing organizational efforts and infrastructure; the value of nurse leaders inviting EBP facilitators to participate and engage in scheduled meetings and committees; the significance of engaging with existing quality, process improvement, and training initiatives; and the benefit of collaborating with advanced practice nurses within the organization. The common challenges for all EBP facilitators were the frequent staff turnover at all levels and a lack of standardization to review and approve EBP initiatives, which makes it difficult to navigate the complete process of project implementation and collaboration across sites. Another challenge has been the difficulty to measure the impact of this role at the MTF and MHS levels. As EBP efforts continue and the program matures, it is anticipated that the outcomes from the individually completed projects, to include decreases in safety events, fiscal savings, and other improvements in organizational metrics, can be compiled to demonstrate the collective impact of these roles within the MHS.

Adapting group interpersonal psychotherapy (IPT-G) for treating depression among military spouses at Naval Medical Center Portsmouth (NMCP): Formative qualitative phase

Introduction: Operation Enduring Freedom (OEF) in Afghanistan and Operation Iraqi Freedom (OIF) in Iraq have resulted in the deployment of nearly 2,000,000 troops, of which nearly 60% were married, and nearly half had dependent children. While great attention is being paid to the mental health of returning Veterans, we cannot neglect the mental health of this substantial population of military family members. Studies have found that spouses exhibit similar rates of mental health problems as soldiers returning from combat. Whereas rates of anxiety have been shown to drop significantly post-deployment, depression in military spouses appears to persist following deployment. Although a number of psychosocial interventions tailored to military families have been developed, to the knowledge of the authors, no evidence-based interventions have been adapted to specifically target clinical depression in military spouses. Methods: This case study is part of a larger pilot study that sought to adapt, test, and evaluate Group Interpersonal Therapy (IPT-G), an evidence-based treatment for depression, for depressed military spouses. A formative qualitative assessment is crucial to the intervention’s long-term effectiveness, dissemination, and sustainability. This study aimed to understand military spouses’ unique mental health needs and their experience with mental health services. Three focus groups were conducted – two groups of military spouses and a group of mental health care providers – and transcripts were generated using verbatim note-taking. Five independent coders then coded the transcripts for themes that emerged as most salient using an inductive thematic analysis approach. Results: The results identified were clustered under three main themes: (1) psychosocial stressors for depressed military spouses; (2) barriers to mental health care for military spouses; and (3) proposed services. Discussion: When implementing an intervention for a specific population, optimization of its fit to the needs, priorities, and help-seeking patterns of the population should take place to ensure that it is meaningful, ecologically valid, and sensitive to context and culture. Our analysis showed that the military culture presents unique psychosocial stressors, barriers, demands, and needs to mental health provision that should be accounted for in the adaptation of evidence-based mental health intervention. The interpersonal nature of many of the challenges faced by military spouses lend themselves readily to the problem areas that are treatment targets of IPT, therefore increasing the patients’ potential for engagement and sense of compatibility with the treatment.

Health Characteristics of the Madeira Riverine Population.

The Amazon River Basin is the largest and the most complex fluvial system in the world. The Brazilian government provides dental and medical care to the riverine populations in this region in part through medical assistance missions, conducted by four hospital ships. The Brazilian Navy invited U.S. Navy medical personnel to join the February 2019 mission aboard Navio de Assistência Hospitalar (NAsH) Carlos Chagas to provide care along the Madeira River. In the course of providing primary care services, demographic, health, and dental data of the Madeira Riverine population were collected. Descriptive statistics were used to generate average health and dental data. Chi-square tests were used to compare population prevalence data. Linear regression was used to evaluate dental caries per patient with proximity to nearest large population center and village population. This project was approved by Naval Medical Center Portsmouth Institutional Review Board. The Madeira Riverine population has similar dental health to Brazilians living in urban centers. Their prevalence of hypertension and diabetes compared favorably with the U.S. averages (17.7% vs. 34.3% [P<0.001] and 3% vs. 9.4% [P<0.001], respectively). Based on the most prevalent ICD-10 code diagnoses, future missions can expect high volumes of patients with intestinal parasites, hypertension, common skin infections, women's health concerns, and musculoskeletal complaints. This study adds to the limited health data currently available on Brazilian Riverine populations. It demonstrates the effectiveness of the Hospital Assistance missions in providing dental care and documents some unique aspects of Riverine health that warrant further study.

Human Papilloma Virus Vaccination Compliance in a Military Aviation Training Community

Human Papilloma Virus (HPV) vaccination compliance as reported by the CDC in 2011 falls short of a national goal to have 80% of adolescents vaccine-complete by 2020. The Naval Aviation Schools Command, Pensacola, Florida offers a single point of contact for military aviation trainees offering near-complete capture of an HPV vaccine target population. The purpose of this study is to identify baseline HPV vaccination rates among military aviation trainees and whether or not the provision of educational materials at the start of aviation training would increase future HPV vaccination compliance. Approval to conduct this study was obtained from the Institutional Review Board of Naval Medical Center Portsmouth, Virginia. Our population of interest consisted of US Navy and Marine Corps student naval aviators, student naval flight officers (officers), and student enlisted air crew (enlisted) reporting for aviation related duty. A convenience sampling of officer and enlisted student classes checking in for training was performed over a period of 6months. The first 3months of students were assigned as the intervention group and the remaining 3months of students were assigned to the control group. This study was conducted in two parts: (1) an anonymous survey captured cross-sectional data of self-reported HPV vaccine use, and (2) prospective analysis of service members' HPV vaccine rates before and after educational intervention as documented within the military's electronic health record system, Armed Forces Health Longitudinal Technology Application (AHLTA). AHLTA immunization status was evaluated for 1,164 personnel; 114 (9.8%) were excluded for missing basic vaccination information. Of the remaining 1,050, another 199 (19%) members were excluded as already vaccine complete (evidenced by three shots documented) prior to entry into the study. Within the 199 service members with documented baseline HPV vaccination completion, 197/199 (99%) were officers and 2/199 (0.1%) were enlisted. A total of 851 personnel were included for prospective analysis. Person-time of 100 person years was used and the vaccination rate translates to 16.62/100 person years (95% CI 11.29, 23.59) within intervention vs. 2.96/100 person years (95% CI 0.80, 7.58) within control groups and are significantly different (P=0.0001). Comparing intervention and control groups, rate ratios=5.61 (95% CI 2.14, 18.64) and rate differences=13.66 (95% CI 7.13, 20.19). Among intervention group survey responders who previously reported nonvaccine use, 50.5% reported a change in opinion about obtaining the vaccination, with a higher proportion of enlisted members reporting a change in opinion (62.8% vs. 39.7%, P=0.0053). Electronic health records immunizations review noted a baseline vaccine completion rate of 19%. Our study showed a health inequity between enlisted and officers, with officers having 99% of the documented baseline completion rates per AHLTA data. Our prospective analysis noted statistically significant rate differences of 13.66% and rate ratios of 5.61 between intervention and control groups. This analysis of AHLTA data combined with survey response of 50.5% indicating a change in opinion about HPV vaccine use among those who had not yet started vaccine series suggests targeted education would be a low-cost intervention to improve HPV vaccine use rates.

Diplopia and Strabismus After Corneal Refractive Surgery.

Diplopia and strabismus are known complications after corneal refractive surgery (CRS). Within the U.S. Armed Forces, refractive surgery is used to improve the operational readiness of the service member, and these complications could cause significant degradation to their capability. This study was performed in order to identify the incidence of strabismus and diplopia following CRS within the U.S. Military Health System. A retrospective review of all patients who underwent photorefractive keratectomy (PRK) or laser-assisted in situ keratomileusis (LASIK) in the Department of Defense from January 2006 through September 2013 was designed and approved by the Naval Medical Center Portsmouth Institutional Review Board. The military health system data mart was queried for all patients who underwent one of these procedures and subsequently had an International Classification of Disease-9 code for any strabismus or diplopia through 2014 allowing at least 1 year of follow-up. We then calculated the incidence of both diplopia and strabismus for these procedures as the primary measure and the overall prevalence as a secondary measure. A total of 108,157 patients underwent PRK or LASIK during our study period with 41 of these patients subsequently having a diagnosis of diplopia or strabismus. After chart review, 16 of these patients were excluded resulting in 25 patients for inclusion in either the strabismus (23 patients, 0.02%) or diplopia (3 patients, 0.003%) cohorts with one patient having both. Of the 23 patients with postoperative strabismus, 4 were new cases giving an incidence of 0.004% and 2 new cases of diplopia for an incidence of 0.002%. Diplopia and strabismus are rare complications after CRS in the U.S. military population. These procedures continue to increase the operational readiness of our service members with minimal risk of these potentially debilitating complications. Overall, this study provides support for the continued use of PRK and LASIK despite study limitations related to the use of large databases for retrospective review. Future prospective studies using delineated preoperative and postoperative examinations with sensorimotor testing included may be able to resolve the limitations of this study.

Biomedical Response to Neisseria gonorrhoeae and Other Sexually Transmitted Infections in the US Military.

Sexually transmitted infections (STIs) continue to plague militaries and defense forces. While the historical recognition of the impact of STIs on operations is evident, contemporary surveillance and research activities are limited. As Neisseria gonorrhoeae and other sexually transmitted pathogens become increasingly resistant to antibiotics, the role of the Department of Defense (DoD) in disease surveillance and clinical research is essential to military Force Health Protection. The Infectious Disease Clinical Research Program (IDCRP) of the Uniformed Services University of the Health Sciences partnered with the DoD Global Emerging Infections Surveillance (GEIS) program to monitor the distribution of gonorrhea antimicrobial resistance (AMR) both domestically and abroad. The DoD gonococcal reference laboratory and repository was established in 2011 as a resource for confirmatory testing and advanced characterization of isolates collected from sites across the continental United States (CONUS) and GEIS-funded sites outside the continental United States (OCONUS). The IDCRP is currently implementing surveillance efforts at CONUS military clinics, including Madigan Army Medical Center, Naval Medical Center Camp Lejeune, Naval Medical Center Portsmouth, Naval Medical Center San Diego, and San Antonio Military Medical Center (efforts were also previously at Womack Army Medical Center). The reference laboratory and repository receives specimens from OCONUS collaborators, including Armed Forces Research Institute of Medical Sciences (AFRIMS; Bangkok, Thailand), Naval Medical Research Unit No. 3 (NAMRU-3), Ghana Detachment (Accra, Ghana), Naval Medical Research Unit No. 6 (NAMRU-6; Lima, Peru), U.S. Army Medical Research Unit - Georgia (USAMRD-G; Tbilisi, Republic of Georgia), and U.S. Army Medical Research Directorate - Kenya (USAMRD-K; Nairobi, Kenya). The gonococcal surveillance program, to include findings, as well as associated clinical research efforts are described. Among N. gonorrhoeae isolates tested within the United States, 8% were resistant to tetracycline, 2% were resistant to penicillin, and 30% were resistant to ciprofloxacin. To date, only one of the 61 isolates has demonstrated some resistance (MIC=1 μg/ml) to azithromycin. No resistance to cephalosporins has been detected; however, reduced susceptibility (MIC=0.06-0.125 μg/ml) has been observed in 13% of isolates. Resistance is commonly observed in N. gonorrhoeae isolates submitted from OCONUS clinical sites, particularly with respect to tetracycline, penicillin, and ciprofloxacin. While no azithromycin-resistant isolates have been identified from OCONUS sites, reduced susceptibility (MIC=0.125-0.5 μg/ml) to azithromycin was observed in 23% of isolates. Continued monitoring of circulating resistance patterns on a global scale is critical for ensuring appropriate treatments are prescribed for service members that may be infected in the U.S. or while deployed. Domestic surveillance for gonococcal AMR within the Military Health System has indicated that resistance patterns, while variable, are not dramatically different from what is seen in U.S. civilian data. Global patterns of gonococcal AMR have been described through the establishment of a central DoD gonococcal reference laboratory and repository. This repository of global isolates provides a platform for further research and development into biomedical countermeasures against gonococcal infections.

Simulation Training for Operational Medicine Providers (STOMP): Impact of a Comprehensive Skills-Based Curriculum for Military General Medical Officers.

A standardized training curriculum designed for general medical officers (GMO) titled Simulation Training for Operational Medicine Providers (STOMP) was recently developed to educate and improve GMOs' procedural skills through directed feedback prior to assuming duties in an operational environment. This study aimed to determine the impact this novel curriculum had on GMOs'confidence levels in 21 core privileges covering eight different subspecialties while stationed at Naval Medical Center Portsmouth (NMCP). A cohort study from 2015 to 2017 was designed to address our specific aim to examine if the implementation of the STOMP curriculum increased GMOs' confidence levels. Fifty-seven participants enrolled in the study. The GMO case group completed the STOMP curriculum (n = 22), while the control or GMO self-study group (n = 35) did not complete the curriculum. Six months after starting clinical practice at NMCP, both groups completed an online survey that assessed their confidence level in performing each core privilege using a 5-point Likert scale. Scores were analyzed using a Wilcoxon Mann-Whitney test. Research data were derived from an approved Naval Medical Center, Portsmouth, Virginia IRB, protocol number: NMCP.2016.0010. Participants demonstrated a statistically significant increase in self-rated confidence scores (p < 0.05) in nine core privilege skills: punch biopsy, shave biopsy, excisional biopsy, removal of otic foreign body, removal of nasal foreign body, removal of ocular foreign body, tonometry, incision and drainage of a thrombosed hemorrhoid, and reduction of simple closed fractures and dislocations. These findings suggest that a novel and recently developed standardized simulation training curriculum entitled STOMP improves the confidence levels of early career physicians' in several primary care procedural skills and is an ideal adjunct to traditional lecture-based teaching prior to independent practice in a primary care environment.