Bmj Military Health最新文献

Background: Military practice or deployment in extreme conditions includes risks, dangers and rare disorders. One of the challenges is frostbite; however, current literature does not provide an overview of this condition in a military context. This review aims to map the incidence, risk factors and outcome of frostbite in military casualties in the armed forces.

Methods: A systematic literature search on frostbite (freezing cold injuries) in military settings from 1995 to the present was performed. A critical appraisal of the included articles was conducted. Data on incidence, risk factors, treatment and outcome were extracted.

Results: Fourteen studies were included in our systematic review. Most studies of frostbite in a military setting were published nearly half a century ago. Frostbite incidence has declined from 7% to around 1% in armed forces in arctic regions but could be as high as 20% in small-scale arctic manoeuvres. Overall and military-specific risk factors for contracting frostbite were identified.

Conclusion: During inevitable arctic manoeuvres, frostbite is a frequently diagnosed injury in service members. Postfreezing symptoms often persist after severe frostbite injury, which decreases employability within the service. Over time, military practice has changed considerably, and modern protective materials have been introduced; therefore, re-evaluation and future study in the military field are appropriate, preferably with other North Atlantic Treaty Organization partners.

Introduction: Tendon structure in mid-portion Achilles tendinopathy (mid-AT) appears poorly associated with symptoms. Yet, degenerative tendon changes on imaging have been associated with an increased risk of mid-AT. We aimed to investigate the prognostic value of ultrasound tissue characterisation (UTC) for a mid-AT recurrence in service members reporting to be recovered following standard care.

Methods: Mid-portion aligned fibrillar structure was quantified post-treatment in 37 participants. Recurrences were determined after 1 year of follow-up, based on self-perceived recurrence (yes/no) combined with a decrease in post-treatment Victorian Institute of Sports Assessment-Achilles score of at least the minimal important change of 7 points. Receiver operating characteristic curve analyses were used to determine a threshold for dichotomisation of outcomes for aligned fibrillar structure (normal representation/under-representation). Using multivariable logistic regression, the association between a mid-AT recurrence (yes/no) and the dichotomised aligned fibrillar structure was determined.

Results: Eight participants (22%) experienced a recurrence. The threshold for aligned fibrillar structure was set at 73.2% (95% CI: 69.4% to 77.8%) according to Youden's index. Values below this threshold were significantly associated with a mid-AT recurrence (odds ratio (OR) 9.7, 95% CI: 1.007 to 93.185). The OR for a mid-AT recurrence was 1.1 (95% CI: 1.002 to 1.150) for each additional month of symptom duration. The explained variance of our multivariable logistic regression model was 0.423; symptom duration appeared to be a better predictor than aligned fibrillar structure.

Conclusions: This study identified mid-portion aligned fibrillar structure and symptom duration as potential prognostic factors for a mid-AT recurrence in military service members. The threshold for aligned fibrillar structure of 73.2% can guide preventative interventions (eg, training load adjustments or additional tendon load programmes) aiming to improve tendon structure to minimise the future recurrence risk.

Trial registration number: https://www.toetsingonline.nl/to/ccmo_search.nsf/Searchform?OpenForm, file number ToetsingOnline NL69527.028.19.

Introduction: Life-threatening haemorrhage is the leading cause of potentially survivable injury in battlefield casualties. During Operation HERRICK (Afghanistan), mortality rates improved year on year due to a number of advances in trauma care, including haemostatic resuscitation. Blood transfusion practice has not previously been reported in detail during this period.

Methods: A retrospective analysis of blood transfusion at the UK role 3 medical treatment facility (MTF) at Camp Bastion between March 2006 and September 2014 was performed. Data were extracted from two sources: the UK Joint Theatre Trauma Registry (JTTR) and the newly established Deployed Blood Transfusion Database (DBTD).

Results: 3840 casualties were transfused 72 138 units of blood and blood products. 2709 adult casualties (71%) were fully linked with JTTR data and were transfused a total of 59 842 units. Casualties received between 1 unit and 264 units of blood product with a median of 13 units per patient. Casualties wounded by explosion required almost twice the volume of blood product transfusion as those wounded by small arms fire or in a motor vehicle collision (18 units, 9 units, and 10 units, respectively). More than half of blood products were transfused within the first 2 hours following arrival at the MTF. There was a trend towards balanced resuscitation with more equal ratios of blood and blood products being used over time.

Conclusion: This study has defined the epidemiology of blood transfusion practice during Operation HERRICK. The DBTD is the largest combined trauma database of its kind. It will ensure that lessons learnt during this period are defined and not forgotten; it should also allow further research questions to be answered in this important area of resuscitation practice.

Introduction: UK veterans are at increased risk of mental health and alcohol use disorders (AUDs), experiencing specific challenges such as combat exposure and re-integration which may contribute to treatment barriers. Experiences of shame and AUDs, which may precede or become exacerbated during military service, may be mitigated by self-compassion (SC). This study sought to understand how UK veterans make sense of their SC experiences within the context of their relationships with alcohol and recovery.

Methods: Interpretative phenomenological analysis was used to interpret the SC experiences of five ex-military veterans (one female). Semistructured face-to-face interviews were audio-recorded and transcribed verbatim, with a double hermeneutic approach used to interpret meaningful issues which influenced participants' self-perceptions in relation to their alcohol use and wider social world.

Results: Two key themes were identified. 'Searching for Safety', which illustrated veterans' SC sense-making within the context of their evolving lifeworld and alcohol use, and 'Healing with Honour' which reflected the significance of purpose and identity within experiences of recovery and SC. Findings were interpreted through the lens of the six bipolar elements of SC, which identified SC as salient within veterans' experiences of AUD and recovery. Although experiences of SC were sometimes perceived as challenging or incongruent to military identity, this was influenced by positive reframing and meaning-making, supported by compassionate narratives and informed trusted relationships.

Conclusions: Veterans' AUD recovery and support-seeking may be impacted by the experience of SC and enhanced by the early implementation of acceptable and feasible interventions which draw on veterans' unique military identities and experience. This may include compassion-focussed interventions which reframe SC as fierce SC, peer support models and educational strategies which support healthcare professionals to understand and identify veterans' military experiences.

Tranexamic acid (TXA) is a life-saving drug that reduces the risk of death from haemorrhage. Intervention is time critical with benefit decreasing with delayed administration. The current Joint Service Publication Patient Group Directive (PGD) for giving TXA during the tactical field care phase of the operational patient care pathway specifies it is given over 10 min via intravenous infusion based on TXA's Summary of Product Characteristics. This paper aims to explore the risks of administering TXA as a bolus rather than a 10-minute infusion. There is little evidence to support the risk of quoted adverse events from bolus administration of TXA, good-quality evidence for the mortality benefit of early administration and some evidence that bolus dosing is safe. The Defence Medical Service should consider a default PGD of rapid TXA administration to maximise mortality benefit.

Introduction: Moral injury concerns transgressive harms and the outcomes that such experiences may cause. A gap in the literature surrounding moral injury, and an outcome that may be important to include in the mounting evidence toward the need for the formal clinical acknowledgement of moral injury, has to do with the relationship between moral injury and quality of life. No studies have examined this relationship in US military veterans-a population that is disproportionately exposed to potentially morally injurious events.

Methods: A nationwide cross-sectional survey was conducted yielding 1495 military veterans. Participants were asked questions about moral injury and quality of life, among other things. Multivariable linear regression was used to characterise the adjusted relationship between moral injury and quality of life.

Results: Moral injury (mean=40.1 out of 98) and quality-of-life (mean=69.5 out of 100) scores were calculated for the sample. Moral injury was inversely associated with quality of life in an adjusted model, indicating that worsening moral injury was associated with decreased quality of life (adjusted unstandardised beta coefficient (b)=-0.3, p<0.001). Results showed that age moderated said relationship, such that ageing veterans experienced an increasingly worse quality of life with increasingly severe moral injury (b=-0.1, p=0.003).

Conclusions: Results of the study showed that moral injury was inversely associated with quality of life and that this relationship rapidly worsens with age. More work is needed to more precisely understand this relationship and to determine the best strategies for intervention.

Introduction: Armed conflict is a growing global cause of death, posing a significant threat to the resilience of global health systems. However, the burden of disease resulting from the Yemeni Civil War remains poorly understood. Approximately half of healthcare facilities in Yemen are non-operational, and around 15% of the population has been displaced. Consequently, neighbouring countries' trauma systems have been providing care to the injured. The objective of this study was to investigate the epidemiology and management of Yemeni civilian victims injured during the war who were subsequently extracted and treated at the study centre in Oman.

Methods: We conducted a retrospective cohort study, including all Yemeni civilians treated for traumatic injuries at the study centre from January 2015 to June 2017. We extracted data on age, sex, date of attendance, mechanism of injury, injuries sustained and treatment.

Results: A total of 254 injured patients were identified. Their median age was 25 (range 3-65) years and 244 (96.1%) were male. Explosions (160 patients, 63.0%) were the most common mechanism of injury, and fractures (n=232 fractures, 42.3% of all injuries; in 149 patients, 58.7% of all patients) the most common injury. Eighty-four of the 150 patients (56%) who received operative management at the study centre were receiving a second procedure after an index procedure outside of Oman.One hundred and twenty-eight (50.4%) patients experienced permanent loss of function in at least one body part and/or limb loss.

Conclusions: This study demonstrates the downstream needs of Yemeni civilians who were evacuated to the study centre, revealing a considerable burden of morbidity associated with this population. The findings emphasise key areas that receiving hospitals should prioritise in resource allocation when managing conflict-wounded evacuees. Additionally, the study underscores the need for holistic rehabilitation for civilian casualties displaced by conflict.