Sexual Health Problems among Service Men: The Influence of Posttraumatic Stress Disorder.

Military operational stressors, such as combat exposure, may increase the risk of sexual health problems. This study examined factors associated with sexual health problems, and tested the mediating effect of probable posttraumatic stress disorder (PTSD) on the association between stressors (i.e., combat deployment and sexual assault) and sexual health problems among U.S. service men. Using multivariable logistic regression (n = 16,603) and Cox proportional hazards models (n = 15,330), we estimated the risk of self-reported sexual health difficulties and sexual dysfunction medical encounters, respectively. Mediation analyses examined the effect of probable PTSD as an intermediate factor between high combat deployment and sexual assault on sexual health problems. Approximately 9% endorsed sexual health difficulties and 8% had a sexual dysfunction. Risk factors for these sexual health problems included older age, lower education level, enlisted rank, disabling injury, certain medical conditions, and higher body mass index. Probable PTSD significantly mediated the associations between high combat with sexual health problems and sexual assault with sexual dysfunction. Additionally, high combat was directly associated with sexual health difficulties. These findings indicate a relationship between these stressors and sexual health problems which suggests that treatment options should be expanded, especially to include psychogenic sexual dysfunctions.

Sexual health difficulties among service women: the influence of posttraumatic stress disorder.

Background Sexual health among service women remains understudied, yet is related to health and quality of life. This study examined if the associations between recent combat and sexual assault with sexual health difficulties were mediated by mental disorders and identified factors associated with sexual health difficulties among service women. Methods Data from two time points (2013 and 2016) of the Millennium Cohort Study, a large military cohort, were used. The outcome was self-reported sexual health difficulties. Mediation analyses examined probable posttraumatic stress disorder (PTSD) and major depressive disorder (MDD) as intermediate variables between recent combat and sexual assault with the sexual health difficulties. Multivariable logistic regression modeling was used to examine the association of demographic, military, historical mental health, life stressors, and physical health factors with sexual health difficulties. Results Of the 6,524 service women, 13.5% endorsed experiencing sexual health difficulties. Recent combat and sexual assault were significantly associated with sexual health difficulties. Probable PTSD mediated the associations of recent combat and sexual assault with sexual health difficulties; probable MDD did not mediate these relationships. Other significant factors associated with sexual health difficulties included enlisted rank, historical mental disorders, childhood trauma, and disabling injury. Limitations Use of self-reported data, outcome not assessed using a standardized measure and future studies may benefit from examining other mediators. Conclusion Our findings that combat and sexual assault may have negative effects on service women's sexual health suggest that treatment options and insurance coverage for sexual health problems should be expanded.

Outcomes of Genitourinary Injury in U.S. Iraq and Afghanistan War Veterans Receiving Care from the Veterans Health Administration.

INTRODUCTION: In the recent conflicts, unprecedented numbers of US service personnel have survived with genitourinary (GU) injury, but few reports have focused on outcomes of these injuries. Outcomes of combat-related GU injury were investigated in wounded US male veterans of Operations Enduring/Iraqi Freedom and New Dawn receiving Veterans Health Administration (VHA) care. MATERIALS AND METHODS: Department of Defense Trauma Registry (DoDTR) data for male service members injured in theater were linked with VHA electronic health records (EHRs) for veterans who received VHA care at least once from October 2001 through September 2011. Abbreviated Injury Scale scores and International Classification of Diseases-9th Revision-Clinical Modification codes were used to identify GU injuries, severity, and outcomes. Wounded veterans with vs. without GU injury were compared. RESULTS: A total of 12,923 injured veterans were found in both databases; 591 (4.6%) had a GU injury diagnosis in the DoDTR; 18 (3.0% of 591) had a GU injury diagnosis in VHA EHRs. Of the 591 with GU injury, 179 (30.3%) had at least one severe GU injury. The prevalence of both urinary symptoms (6.3% vs. 3.1%; p < 0.0001) and sexual dysfunction (13.5% vs. 7.1%; p < 0.0001) was higher among those with vs. without GU injury, respectively. Traumatic brain injury prevalence was also higher (48.0 % vs. 40.0%; p < 0.0001); post-traumatic stress disorder prevalence was similar between the two groups (51.6% vs. 50.6%). CONCLUSION: We identified an opportunity to improve the diagnosis and coordination of care for veterans with GU injury. Routine screening and better documentation upon transfer from DoD to VHA care should be implemented to alert multi-specialty care teams to provide care for the urinary, sexual, fertility, and psychological health problems of these patients.

Causes of Death in Military Working Dogs During Operation Iraqi Freedom and Operation Enduring Freedom, 2001-2013.

BACKGROUND: Military working dogs (MWDs) are a major asset in the theater of operations. Their unique abilities make them ideal for tasks such as tracking, patrol, and scent detection. MWDs deployed to a war zone are exposed to harsh environments and battlefield dangers that increase their risk of disease, injuries, and death. Although canines have been used extensively in Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF), no published studies have reported detailed causes of death among MWDs deployed to these conflicts. MATERIALS AND METHODS: Potential cases were defined as U.S. military-owned MWDs that died while deployed in Iraq (OIF) or Afghanistan (OEF) from January 1, 2001 through December 31, 2013 and identified from both official sources and unofficial sources, that is, online searches. Cases included in this study were limited to MWDs with data on cause of death obtained by abstraction from official veterinary treatment records (VTRs) from the Department of Defense Military Working Dog Veterinary Service, Joint Base San Antonio-Lackland Air Force Base, San Antonio, Texas, and Special Operations Forces units. RESULTS: We identified 92 MWDs that died while deployed to OEF/OIF from 2001 through 2013 and had cause of death information from official VTRs. For both OEF and OIF, the most common training program was Multi-Purpose Canine (36.5% and 51.7%, respectively), followed by Improvised Explosive Detector Dog for OEF (34.9%) and Patrol Explosive Detector Dog for OIF (34.5%). Injuries were the primary cause of death for 77.2% of the MWDs for which we had cause of death data. The most frequent external injuries were gunshot wounds (GSW) (31.5%), explosion or blast (26.1%), and heat stress (9.8%). The proportion of deaths due to GSW was similar for OEF and OIF (30.2% vs. and 34.5%, respectively). However, a greater proportion of MWDs died from explosions during OEF than during OIF (30.2% vs. 17.2%, respectively). Diseases were the cause of death in 23.0% of the MWDs. The most common diseases were gastric dilation and volvulus (GDV, n = 3), pleuritis (n = 2), and sepsis (n = 3). Two deaths were associated with anesthesia-related medical procedures. A total of 8.7% of cases were missing cause of death, 8.7% were missing age, 32.6% of cases were missing data on necropsy, and 14.1% were missing data on final disposition of the body. Other variables of interest including number of deployments and duration of training had a very high proportion of missing values and thus could not be analyzed. CONCLUSIONS: Our study is the most comprehensive to date that reports causes of death of MWDs deployed to OIF and OEF. However, limitations in the available data lessen the potential of our results to inform improvements in training and point of injury medical care. Better documentation in VTRs and systematic data collection into an official MWD trauma registry could lead to improved training and facilitate further development and evaluation of guidelines to improve care of wounded MWDs in future conflicts.

Genitourinary Injuries Among Female U.S. Service Members During Operation Iraqi Freedom and Operation Enduring Freedom: Findings from the Trauma Outcomes and Urogenital Health (TOUGH) Project.

Introduction: Until recently, female U.S. service members (SMs) have not been permitted to serve in direct combat roles. However, during Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF), a large number of female SMs have been wounded while serving in combat support roles. This included an unprecedented number of women with genitourinary (GU) injuries. No previous studies have reported either the incidence or clinical picture of these injuries. The objective of this study is to describe the epidemiology of GU injuries among female U.S. SMs during OIF/OEF and understand the potential for increased female GU injuries in future conflicts and the long-term sequelae from these injury patterns. Materials and Methods: The Department of Defense Trauma Registry was reviewed to identify all U.S. SMs diagnosed with GU injury from 2001 to 2013. The Department of Defense Trauma Registry includes data for wounded SMs treated at any U.S. combat support hospital, the in-theater equivalent of a civilian trauma center. Female SMs with ICD-9-CM diagnosis codes and/or Abbreviated Injury Scale codes for GU injury were included. Data on all females with GU injury were reviewed, including battle injury (BI) and non-BI. Basic demographic and injury characteristics were reported. Results: Among the 1,463 U.S. SMs diagnosed with GU injury while deployed to OIF/OEF, 20 (1.4%) were female (median age: 25 yr; interquartile range 21-27 yr). Of these, nine were BI (45%) and 11 were non-BI (55%). The distribution of injury location was as follows: renal injuries (n = 12), vulvar injuries (n = 3), vaginal injuries (n = 3), perineal injury (n = 1), and bladder injury (n = 1). Median Injury Severity Score was in the severe range of 21 (interquartile range 6-32), and four women (20%) died of their wounds. Important associated injuries included colorectal (n = 5) and lower extremity amputation(s) (n = 2). The most common mechanism of injury among the nine women with GU BI was improvised explosive device blast (n = 6), followed by other explosions (n = 2) and gunshot wound (n = 1). Mechanisms of GU non-BI varied, including gunshot wound (n = 2), fall (n = 2), fire/flame (n = 1), knife wound (n = 1), unintentional machine injury (n = 1), motor vehicle accident (n = 1), sports injury (n = 1), fight (n = 1), and pedestrian injury (n = 1). Conclusion: Female GU injuries comprise a small portion of all GU injuries sustained during OIF/OEF with the most predominant being renal injury. Now that the ground combat exclusion policy has been lifted, these data can be used as a model for the expected injury patterns in future female combatants. Long-term applications for these data include research and development for personal protective equipment and development of a multidisciplinary approach to long-term comprehensive care following GU trauma.

The Highest-Impact Combat Orthopedic and Extremity Injury Articles in the Past 70 Years: A Citation Analysis.

The objective of this study was to identify the most-cited peer-reviewed combat orthopedic and extremity injury articles published during the past 70 years. Orthopedic trauma presents ongoing challenges to both US civilian and military healthcare personnel. Improvements in combat trauma and extremity injury survival and quality of life are the result of advances in orthopedic trauma research. The Web of Science (including Science Citation Index) was searched for the most cited articles related to combat orthopedic trauma, published from 1940 to 2013. The most-cited article was by Owens et al. (Journal of Orthopaedic Trauma, 2007; 137 citations). Between the 1990s and 2000s, there was a 256% increase in the number of highly cited publications. A total of 69% of the articles were on the topics of comorbid vascular trauma (25%), epidemiology (23%), or orthopedic trauma (21%). This study identifies some of the most important contributions to combat orthopedic trauma and research and the areas of greatest scientific interest to the specialty during the past seven decades and highlights key research that has contributed to the evolution of modern combat orthopedic traumatology.

U.S. military service and the prevalence of metabolic syndrome: Findings from a cross-sectional analysis of the Cooper Center Longitudinal Study, 1979-2013.

U.S. military service confers both health benefits and risks potentially associated with a clustering of cardiovascular risk factors called metabolic syndrome. However, the association between prior military service and metabolic syndrome has not sufficiently been examined. The purpose of the study was to compare the prevalence of metabolic syndrome by prior military service status. Among 42,370 men (887 with prior military service) examined from 1979 to 2013 at the Cooper Clinic (Dallas, TX), we used a cross-sectional study design to examine the association between military service and metabolic syndrome. First, an unadjusted log binomial regression model was performed by regressing the prevalence of metabolic syndrome on prior service. This was followed by performing Kleinbaum's modeling strategy for assessing confounding. The same methodology was used to explore the association between individual metabolic syndrome risk factors and prior service. Prior military service was not significantly associated with the prevalence of metabolic syndrome (PR=0.98, 0.89-1.07). None of the variables explored were identified as confounders. Participants with prior military service had lower prevalence of both elevated levels of triglycerides (PR=0.89, 0.80-0.99) and low levels of high-density lipoprotein-cholesterol (PR=0.78, 0.70-0.88). They had a higher prevalence of elevated resting systolic blood pressure (PR=1.23, 1.12-1.35). However, none of these associations were significant after adjusting for identified confounders: age; cardiorespiratory fitness; and exam year. Study findings indicate that military service was not independently associated with the prevalence of metabolic syndrome or its components. Future research is warranted longitudinally assessing the impact of military service on long-term outcomes.

Epidemiology of Genitourinary Injuries among Male U.S. Service Members Deployed to Iraq and Afghanistan: Early Findings from the Trauma Outcomes and Urogenital Health (TOUGH) Project.

PURPOSE: In this study we report the number, nature and severity of genitourinary injuries among male U.S. service members deployed to Operations Iraqi Freedom and Enduring Freedom. MATERIALS AND METHODS: This retrospective cross-sectional study of the Department of Defense Trauma Registry used ICD-9-CM codes to identify service members with genitourinary injuries, and used Abbreviated Injury Scale codes to determine injury severity, genitourinary organs injured and comorbid injuries. RESULTS: From October 2001 to August 2013, 1,367 male U.S. service members sustained 1 or more genitourinary injuries. The majority of injuries involved the external genitalia (1,000, 73.2%), including the scrotum (760, 55.6%), testes (451, 33.0%), penis (423, 31%) and/or urethra (125, 9.1%). Overall more than a third of service members with genitourinary injury sustained at least 1 severe genitourinary injury (502, 36.7%). Loss of 1 or both testes was documented in 146 men, including 129 (9.4%) unilateral orchiectomies and 17 (1.2%) bilateral orchiectomies. Common comorbid injuries included traumatic brain injury (549, 40.2%), pelvic fracture (341, 25.0%), colorectal injury (297, 21.7%) and lower extremity amputations (387, 28.7%). CONCLUSIONS: An unprecedented number of U.S. service members sustained genitourinary injury while deployed to Operation Iraqi Freedom/Operation Enduring Freedom. Further study is needed to describe the long-term impact of genitourinary injury and determine the potential need for novel treatments to improve sexual, urinary and/or reproductive function among service members with severe genital injury.

Completion of Multidisciplinary Treatment for Persistent Postconcussive Symptoms Is Associated With Reduced Symptom Burden.

OBJECTIVE: To investigate the pre- to posttreatment changes in both posttraumatic stress disorder (PTSD) and persistent postconcussive symptoms (PPCSs). SETTING AND PARTICIPANTS: We studied 257 active-duty patients with a history of mild traumatic brain injury (mTBI) who completed multidisciplinary outpatient treatment at Brooke Army Medical Center TBI Clinic from 2008 to 2013. This treatment program included cognitive rehabilitation; vestibular interventions; headache management; and integrated behavioral healthcare to address co-occurring psychiatric conditions such as PTSD, depression, and sleep disturbance. DESIGN: A 1-group; preexperimental, pre- to posttreatment study. MAIN MEASURES: The Neurobehavioral Symptom Inventory (NSI) was used to assess PPCSs, and the PTSD Checklist-Military Version (PCL-M) was used to asses PTSD symptoms. RESULTS: Global PPCS resolution (mean NSI: 35.0 pre vs 23.8 post; P < .0001; d = 0.72) and PTSD symptom resolution (mean PCL-M: 43.2 pre vs 37.7 post; P < .0001; d = 0.34) were statistically significant. Compared with those with only mTBI, patients with mTBI and PTSD reported greater global PPCS impairment both pretreatment (mean NSI: 48.7 vs 27.9; P < .0001) and posttreatment (mean NSI: 36.2 vs 17.4; P < .0001). After adjusting for pretreatment NSI scores, patients with comorbid PTSD reported poorer PPCS resolution than those with mTBI alone (mean NSI: 27.9 pre vs 21.7 post; P = .0009). CONCLUSION: We found a reduction in both self-reported PPCSs and PTSD symptoms; however, future studies are needed to identify specific components of care associated with symptom reduction.

Postdischarge Cause-of-Death Analysis of Combat-Related Burn Patients.

Combat operations in Iraq and Afghanistan have resulted in up to 8.8% of combat-related casualties suffering burns. From World War I through Desert Storm, burns have been associated with approximately 4% of the combat-related deaths. Experiencing a blast injury and exposure to killing and death while deployed has been shown to increase suicide risk. Although several studies of military populations have investigated risk factors for death among burn patients during the acute phase, no studies have reported mortality rates, cause-of-death, or the prevalence of suicide after hospital discharge. This study examined the case fatality rate, causes of death, and the prevalence of suicide among 830 combat burn patients discharged from the sole burn center in the U.S. Department of Defense, between March 7, 2003 and March 6, 2013. Cause-of-death was determined through the Armed Forces Medical Examiner's Office and the Office of the Secretary of Defense's National Death Index. A total of 11 deaths occurred among the 830 burn survivors, for an overall case fatality rate of 1.3%. Of the 11 who died, five deaths were related to accidental poisoning by exposure to drugs; three were related to operations of war (two after returning to the war zone), and the remaining three died from other accidental causes (one explosion and two vehicle crashes). There was no indication of suicide or suspicion of suicide as a cause-of-death for the former patients included in this study, suggesting that combat burn injury did not appear to increase the risk of death by suicide in our study population. Further research is needed to understand the factors that contribute to the apparent resilience of combat burn survivors.

Genitourinary injuries and extremity amputation in Operations Enduring Freedom and Iraqi Freedom: Early findings from the Trauma Outcomes and Urogenital Health (TOUGH) project.

BACKGROUND: In Operation Enduring Freedom and Operation Iraqi Freedom (OEF/OIF), genitourinary (GU) wounds have occurred in unprecedented numbers. Severe concomitant injuries, including extremity amputations, are common. The epidemiology of GU injury and extremity amputation in OEF/OIF has not been described. MATERIALS AND METHODS: The Department of Defense Trauma Registry was queried from October 2001 through August 2013 to identify all surviving US male service members with GU injuries sustained in OEF/OIF. Genitourinary injury was defined as sustaining one or more injuries to any organ or structure within the genitourinary and/or reproductive system(s) based on International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis codes. Injury severity was quantified based on Abbreviated Injury Scale scores and overall Injury Severity Scores. The incidence, nature, and severity of GU injuries and extremity amputations are described. RESULTS: Of the 1,367 service members with GU injury included in this analysis, 433 (31.7%) had one or more extremity amputations. Most GU injuries were to the external genitalia [scrotum (55.6%), testes (33.0%), penis (31.0%), and urethra (9.1%)] vs. the kidneys (21.1%). Those with amputation(s) had greater GU injury severity (Abbreviated Injury Scale score ≥ 3) than those without amputations (50.1% vs. 30.5%, respectively; p < 0.0001). Approximately 3.4% of male service members with GU injury had an upper extremity amputation only, 8.9% had both lower and upper extremity amputation(s), and 19.4% had lower extremity amputation(s) only. Of the 387 patients with GU injury and lower extremity amputations, 87 (22.5%) had amputations below the knee and 300 (77.5%) had amputation(s) at/above the knee. CONCLUSION: In OEF/OIF, concomitant GU injury and extremity amputation are common and have serious implications for health and quality of life. This wounding pattern presents new challenges to the military medical and research and development communities to prevent, mitigate, and treat these battlefield injuries. LEVEL OF EVIDENCE: Epidemiologic/prognostic study, level III.

The Military Injury Severity Score (mISS): A better predictor of combat mortality than Injury Severity Score (ISS).

BACKGROUND: The Military Injury Severity Score (mISS) was developed to better predict mortality in complex combat injuries but has yet to be validated. METHODS: US combat trauma data from Afghanistan and Iraq from January 1, 2003, to December 31, 2014, from the US Department of Defense Trauma Registry (DoDTR) were analyzed. Military ISS, a variation of the ISS, was calculated and compared with standard ISS scores.Receiver operating characteristic curve, area under the curve, and Hosmer-Lemeshow statistics were used to discriminate and calibrate between mISS and ISS. Wilcoxon-Mann-Whitney, t test and χ tests were used, and sensitivity and specificity calculated. Logistic regression was used to calculate the likelihood of mortality associated with levels of mISS and ISS overall. RESULTS: Thirty thousand three hundred sixty-four patients were analyzed. Most were male (96.8%). Median age was 24 years (interquartile range [IQR], 21-29 years). Battle injuries comprised 65.3%. Penetrating (39.5%) and blunt (54.2%) injury types and explosion (51%) and gunshot wound (15%) mechanisms predominated. Overall mortality was 6.0%.Median mISS and ISS were similar in survivors (5 [IQR, 2-10] vs. 5 [IQR, 2-10]) but different in nonsurvivors, 30 (IQR, 16-75) versus 24 (IQR, 9-23), respectively (p < 0.0001). Military ISS and ISS were discordant in 17.6% (n = 5,352), accounting for 56.2% (n = 1,016) of deaths. Among cases with discordant severity scores, the median difference between mISS and ISS was 9 (IQR, 7-16); range, 1 to 59. Military ISS and ISS shared 78% variability (R = 0.78).Area under the curve was higher in mISS than in ISS overall (0.82 vs. 0.79), for battle injury (0.79 vs. 0.76), non-battle injury (0.87 vs. 0.86), penetrating (0.81 vs. 0.77), blunt (0.77 vs. 0.75), explosion (0.81 vs. 0.78), and gunshot (0.79 vs. 0.73), all p < 0.0001. Higher mISS and ISS were associated with higher mortality. Compared with ISS, mISS had higher sensitivity (81.2 vs. 63.9) and slightly lower specificity (80.2 vs. 85.7). CONCLUSION: Military ISS predicts combat mortality better than does ISS. LEVEL OF EVIDENCE: Prognostic and epidemiologic study, level III.

The Effect of a Golden Hour Policy on the Morbidity and Mortality of Combat Casualties.

IMPORTANCE: The term golden hour was coined to encourage urgency of trauma care. In 2009, Secretary of Defense Robert M. Gates mandated prehospital helicopter transport of critically injured combat casualties in 60 minutes or less. OBJECTIVES: To compare morbidity and mortality outcomes for casualties before vs after the mandate and for those who underwent prehospital helicopter transport in 60 minutes or less vs more than 60 minutes. DESIGN, SETTING, AND PARTICIPANTS: A retrospective descriptive analysis of battlefield data examined 21,089 US military casualties that occurred during the Afghanistan conflict from September 11, 2001, to March 31, 2014. Analysis was conducted from September 1, 2014, to January 21, 2015. MAIN OUTCOMES AND MEASURES: Data for all casualties were analyzed according to whether they occurred before or after the mandate. Detailed data for those who underwent prehospital helicopter transport were analyzed according to whether they occurred before or after the mandate and whether they occurred in 60 minutes or less vs more than 60 minutes. Casualties with minor wounds were excluded. Mortality and morbidity outcomes and treatment capability-related variables were compared. RESULTS: For the total casualty population, the percentage killed in action (16.0% [386 of 2411] vs 9.9% [964 of 9755]; P < .001) and the case fatality rate ([CFR] 13.7 [469 of 3429] vs 7.6 [1344 of 17,660]; P < .001) were higher before vs after the mandate, while the percentage died of wounds (4.1% [83 of 2025] vs 4.3% [380 of 8791]; P = .71) remained unchanged. Decline in CFR after the mandate was associated with an increasing percentage of casualties transported in 60 minutes or less (regression coefficient, -0.141; P < .001), with projected vs actual CFR equating to 359 lives saved. Among 4542 casualties (mean injury severity score, 17.3; mortality, 10.1% [457 of 4542]) with detailed data, there was a decrease in median transport time after the mandate (90 min vs 43 min; P < .001) and an increase in missions achieving prehospital helicopter transport in 60 minutes or less (24.8% [181 of 731] vs 75.2% [2867 of 3811]; P < .001). When adjusted for injury severity score and time period, the percentage killed in action was lower for those critically injured who received a blood transfusion (6.8% [40 of 589] vs 51.0% [249 of 488]; P < .001) and were transported in 60 minutes or less (25.7% [205 of 799] vs 30.2% [84 of 278]; P < .01), while the percentage died of wounds was lower among those critically injured initially treated by combat support hospitals (9.1% [48 of 530] vs 15.7% [86 of 547]; P < .01). Acute morbidity was higher among those critically injured who were transported in 60 minutes or less (36.9% [295 of 799] vs 27.3% [76 of 278]; P < .01), those severely and critically injured initially treated at combat support hospitals (severely injured, 51.1% [161 of 315] vs 33.1% [104 of 314]; P < .001; and critically injured, 39.8% [211 of 530] vs 29.3% [160 of 547]; P < .001), and casualties who received a blood transfusion (50.2% [618 of 1231] vs 3.7% [121 of 3311]; P < .001), emphasizing the need for timely advanced treatment. CONCLUSIONS AND RELEVANCE: A mandate made in 2009 by Secretary of Defense Gates reduced the time between combat injury and receiving definitive care. Prehospital transport time and treatment capability are important factors for casualty survival on the battlefield.

Retrospective Analysis of Long-Term Outcomes After Combat Injury: A Hidden Cost of War.

BACKGROUND: During the conflicts in Iraq and Afghanistan, 52,087 service members have been wounded in combat. The long-term sequelae of these injuries have not been carefully examined. We sought to determine the relation between markers of injury severity and the subsequent development of hypertension, coronary artery disease, diabetes mellitus, and chronic kidney disease. METHODS AND RESULTS: Retrospective cohort study of critically injured US military personnel wounded in Iraq or Afghanistan from February 1, 2002 to February 1, 2011. Patients were then followed until January 18, 2013. Chronic disease outcomes were assessed by International Classification of Diseases, 9th edition codes and causes of death were confirmed by autopsy. From 6011 admissions, records were excluded because of missing data or if they were for an individual's second admission. Patients with a disease diagnosis of interest before the injury date were also excluded, yielding a cohort of 3846 subjects for analysis. After adjustment for other factors, each 5-point increment in the injury severity score was associated with a 6%, 13%, 13%, and 15% increase in incidence rates of hypertension, coronary artery disease, diabetes mellitus, and chronic kidney disease, respectively. Acute kidney injury was associated with a 66% increase in rates of hypertension and nearly 5-fold increase in rates of chronic kidney disease. CONCLUSIONS: In Iraq and Afghanistan veterans, the severity of combat injury was associated with the subsequent development of hypertension, coronary artery disease, diabetes mellitus, and chronic kidney disease.

Military-to-civilian translation of battlefield innovations in operative trauma care.

BACKGROUND: Historic improvements in operative trauma care have been driven by war. It is unknown whether recent battlefield innovations stemming from conflicts in Iraq/Afghanistan will follow a similar trend. The objective of this study was to survey trauma medical directors (TMDs) at level 1-3 trauma centers across the United States and gauge the extent to which battlefield innovations have shaped civilian practice in 4 key domains of trauma care. METHODS: Domains were determined by the use of a modified Delphi method based on multiple consultations with an expert physician/surgeon panel: (1) damage control resuscitation (DCR), (2) tourniquet use, (3) use of hemostatic agents, and (4) prehospital interventions, including intraosseous catheter access and needle thoracostomy. A corresponding 47-item electronic anonymous survey was developed/pilot tested before dissemination to all identifiable TMD at level 1-3 trauma centers across the US. RESULTS: A total of 245 TMDs, representing nearly 40% of trauma centers in the United States, completed and returned the survey. More than half (n = 127; 51.8%) were verified by the American College of Surgeons. TMDs reported high civilian use of DCR: 95.1% of trauma centers had implemented massive transfusion protocols and the majority (67.7%) tended toward 1:1:1 packed red blood cell/fresh-frozen plasma/platelets ratios. For the other 3, mixed adoption corresponded to expressed concerns regarding the extent of concomitant civilian research to support military research and experience. In centers in which policies reflecting battlefield innovations were in use, previous military experience frequently was acknowledged. CONCLUSION: This national survey of TMDs suggests that military data supporting DCR has altered civilian practice. Perceived relevance in other domains was less clear. Civilian academic efforts are needed to further research and enhance understandings that foster improved trauma surgeon awareness of military-to-civilian translation.

The prevalence of epilepsy and association with traumatic brain injury in veterans of the Afghanistan and Iraq wars.

OBJECTIVE: To examine the association of epilepsy with traumatic brain injury (TBI) in Afghanistan and Iraq (Operation Enduring Freedom [OEF]/Operation Iraqi Freedom [OIF]) Veterans. DESIGN: Cross-sectional observational study. PARTICIPANTS: A total 256 284 OEF/OIF Veterans who received inpatient and outpatient care in the Veterans Health Administration in fiscal years 2009-2010. MAIN OUTCOME MEASURES: We used algorithms developed for use with International Classification of Diseases, Ninth Revision, Clinical Modification, codes to identify epilepsy, TBI (penetrating TBI [pTBI]/other TBI), and other risk factors for epilepsy (eg, stroke). TBI and other risk factors were identified prior to the index date (first date of seizure or October 1, 2009) for primary analyses. RESULTS: Epilepsy prevalence was 10.6 per 1000 (N = 2719) in fiscal year 2010; age-adjusted prevalence was 6.1. Of 37 718 individuals with a diagnosis of TBI, 29 297 Veterans had a diagnosis of TBI prior to the index date. Statistically significant associations were found between epilepsy and prior TBI diagnosis (pTBI: adjusted odds ratio = 18.77 [95% confidence interval, 9.21-38.23]; other TBI: adjusted odds ratio = 1.64 [1.43-1.89]). CONCLUSIONS: Among OEF/OIF Veterans, epilepsy was associated with previous TBI diagnosis, with pTBI having the strongest association. Because war-related epilepsy in Vietnam War Veterans with TBI continued 35 years postwar, a detailed, prospective study is needed to understand the relationship between epilepsy and TBI severity in OEF/OIF Veterans.

Derivation of candidates for the combat casualty critical care (C4) database.

OBJECTIVE: To describe the development of the Combat Casualty Critical Care Database, a comprehensive database of critically injured combat casualties to identify potentially modifiable risk factors for morbidity and mortality in this population. METHODS: The Department of Defense's Joint Theater Trauma Registry was queried for all combat casualties injured from February 1, 2002 through February 1, 2011. The search was limited to patients who required admission to the intensive care unit and survived to be evacuated to Landstuhl Regional Medical Center. RESULTS: The query yielded 6,011 patients. The mean age was 25.7 ± 6.2 years. The majority of patients were male (98.3%), injured in Iraq (80%) and were members of the U. S. Army (72.6%). Most patients (58.0%) had an injury severity score in the lowest severity category (0-15). The mortality rate was 1.8%. The median day of death after injury (interquartile range) was 6 (3-14). CONCLUSIONS: We identified a cohort of critically wounded combat casualties that encompasses the majority of such patients injured in the course of the wars in Iraq and Afghanistan. When this database is fully populated, rigorous epidemiologic analysis will seek to identify factors associated with morbidity and mortality to improve future care.