Comparing the Management of Eye Injuries by Coalition Military Surgeons during the Iraq and Afghanistan Conflicts.

PURPOSE: To compare incidences, ocular injury types, and treatment performed on United States and United Kingdom military service members and host nation civilians within the Iraq and Afghanistan conflicts to inform future military surgical training requirements and military medical planning. The United States routinely deployed ophthalmologists, whereas the United Kingdom did not. DESIGN: Retrospective cohort study of the United States and United Kingdom military Joint Theatre Trauma Registries. PARTICIPANTS: All patients with eye injuries treated at a deployed Military Treatment Facility between March 2003 and October 2011. METHODS: An adjusted multiple logistic regression model was performed using enucleation or evisceration and primary open-globe repair as dependent variables and casualty nationality, location, and the presence of an ophthalmic surgeon as independent variables. MAIN OUTCOME MEASURES: Incidence of eye removal (enucleation or evisceration) or primary repair for open globe injury. RESULTS: Five thousand seven hundred nineteen of 67 586 (8%) survivors or those who died of wounds were recorded to have sustained eye injuries. The most common eye injuries were open-globe injury without intraocular foreign body (3201/5719 [56%]). Adnexal injuries (eyelid lacerations and damage to lacrimal apparatus) were recorded in 1265 of 5719 patients (22%). The odds of undergoing evisceration or enucleation for open-globe injury was highest in host nation civilians (odds ratio [OR], 9.23; P < 0.001), but there was no evidence of a difference between United States and United Kingdom military service member casualties (P = 0.38). The presence of an ophthalmic surgeon (OR, 16.3; P < 0.001) significantly affected the odds of eye removal. CONCLUSIONS: Eye injuries were more likely to have been treated definitively in United States Medical Treatment Facilities (MTFs), reflecting the absence of ophthalmologists in most deployed United Kingdom MTFs. The Iraq and Afghan conflicts were notable for coalition air dominance; the shape of future conflicts may mandate delays in evacuation, which may affect visual outcomes negatively, particularly if primary repair of patients with open-globe injuries is delayed. This study provides evidence to support the maintenance of specialist ophthalmic surgical competencies in deployed coalition MTFs for future conflicts.

Survival after traumatic brain injury improves with deployment of neurosurgeons: a comparison of US and UK military treatment facilities during the Iraq and Afghanistan conflicts.

INTRODUCTION: Traumatic brain injury (TBI) is the most common cause of death on the modern battlefield. In recent conflicts in Iraq and Afghanistan, the US typically deployed neurosurgeons to medical treatment facilities (MTFs), while the UK did not. Our aim was to compare the incidence, TBI and treatment in US and UK-led military MTF to ascertain if differences in deployed trauma systems affected outcomes. METHODS: The US and UK Combat Trauma Registries were scrutinised for patients with HI at deployed MTFs between March 2003 and October 2011. Registry datasets were adapted to stratify TBI using the Mayo Classification System for Traumatic Brain Injury Severity. An adjusted multiple logistic regression model was performed using fatality as the binomial dependent variable and treatment in a US-MTF or UK-MTF, surgical decompression, US military casualty and surgery performed by a neurosurgeon as independent variables. RESULTS: 15 031 patients arrived alive at military MTF after TBI. Presence of a neurosurgeon was associated with increased odds of survival in casualties with moderate or severe TBI (p<0.0001, OR 2.71, 95% CI 2.34 to 4.73). High injury severity (Injury Severity Scores 25-75) was significantly associated with a lower survival (OR 4×104, 95% CI 1.61×104 to 110.6×104, p<0.001); however, having a neurosurgeon present still remained significantly positively associated with survival (OR 3.25, 95% CI 2.71 to 3.91, p<0.001). CONCLUSIONS: Presence of neurosurgeons increased the likelihood of survival after TBI. We therefore recommend that the UK should deploy neurosurgeons to forward military MTF whenever possible in line with their US counterparts.

Impact of socioeconomic deprivation on short-term outcomes and long-term overall survival after colorectal resection for cancer.

PURPOSE: The aim of this study was to assess the effects of socioeconomic deprivation on short-term outcomes and long-term overall survival following major resection of colorectal cancer (CRC) at a tertiary hospital in England. METHOD: This was an observational cohort study of patients undergoing resection for colorectal cancer from January 2010 to December 2017. Deprivation was classified into quintiles using the English Indices of Multiple Deprivation 2010. Primary outcome was overall complications (Clavien-Dindo grades 1 to 5). Secondary outcomes were the major complications (Clavien-Dindo 3 to 5), length of hospital stay and overall survival. Outcomes were compared between most affluent group and most deprived group. Multivariate regression models were used to establish the relationship taking into account confounding variables. RESULTS: One thousand eight hundred thirty-five patients were included. Overall and major complication rates were 44.9% and 11.5% respectively in the most affluent, and 54.6% and 15.6% in the most deprived group. Most deprived group was associated with higher overall complications (odds ratio 1.48, 95% CI 1.13-1.95, p = 0.005), higher major complications (odds ratio 1.49, 1.01-2.23, p = 0.048) and longer hospital stay (adjusted ratio 1.15, 1.06-1.25, p < 0.001) when compared with most affluent group. Median follow period was 41 months (interquartile range 20-64.5). Most deprived group had poor overall survival compared with most affluent, but it was not significant at the 5% level (hazard ratio 1.27, 0.99-1.62, p = 0.055). CONCLUSION: Deprivation was associated with higher postoperative complications and longer hospital stay following major resection for CRC. Its relationship with survival was not statistically significant.

Post-traumatic stress disorder amongst surgical trainees: An unrecognised risk?

BACKGROUND: Experiences of actual/threatened death or serious injury to patients are commonplace in surgery. Pathological symptoms following stress may lead to Acute Stress Reaction (ASR) and Post-Traumatic Stress Disorder (PTSD). PTSD symptoms of insomnia, anger, poor concentration, hyper-vigilance and exaggerated startle have implications for patient safety. The current study investigates the prevalence of occult, untreated psychological morbidity amongst surgical trainees. METHODS: A web-based survey of UK surgical trainees based upon the Impact of Events Scale-Revised (IES-R) was distributed using social media platforms and email. A score of ≥33 was indicative of ASR or PTSD (the former lasting <1 month, the latter >1 month). Additional questions concerned chronicity of symptoms, mentorship, team-working and access to support. RESULTS: For 167 returned surveys the mean age was 32.7 (SD 3.6) years; 102/167 (61%) were male. Mean years in training were 6.1 (SD 3.6). Median IES-R score was 14 (IQR 7-23.5). Of 144 respondents who answered about stress symptoms, 23/144 (16%) had IES-R score ≥ 33; 6 of these had symptoms < 1 month (suggesting ASR); 17 had symptoms lasting >1 month (suggesting PTSD). Those with IES-R ≥ 33 group were more likely to have repeated years of training, and have witnessed severe pain, traumatic injury, and acute haemorrhage. Seven with score ≥ 33 had sought support. CONCLUSION: Occult psychological morbidity amongst surgical trainees may be higher than in the general population. Recognition and management of this risk is important for the mental health of trainees and the safety of patients.

Quality of Life After Ostomy Surgery in Muslim Patients: A Systematic Review of the Literature and Suggestions for Clinical Practice.

PURPOSE: To determine factors that influence health-related quality of life (HRQOL) after ostomy surgery in Muslim patients. METHODS: A systematic literature review of published data was carried out using MeSH terms ("Muslim" OR "Islam") AND ("stoma" OR "ostomy" OR "colostomy" OR "ileostomy") AND "quality of life" AND "outcomes." RESULTS: Twelve studies enrolling 913 subjects were deemed suitable for inclusion in the review. HRQOL was found to be particularly impaired in Muslims; this impairment went beyond that experienced by non-Muslim patients. Factors associated with this difference included psychological factors, social isolation, underreporting of complications, and sexual dysfunction leading to breakdown of marital relations as well as diminished religious practices. CONCLUSION: Muslims requiring ostomies should receive preoperative counseling by surgeons and ostomy nurses. These discussions should also include faith leaders and/or hospital chaplains. Ongoing support after surgery can be extended into the community and encompass family doctors and faith leaders. Additional research exploring HRQOL after surgery in Muslims living in Western societies is indicated.

Engaging with Faith Councils to Develop Stoma-specific Fatawas: A Novel Approach to the Healthcare Needs of Muslim Colorectal Patients.

Intestinal stomas are common. Muslims report significantly lower quality of life following stoma surgery compared to non-Muslims. A fatwa is a ruling on a point of Islamic law according to a recognised religious authority. The use of fatawas to guide health-related decision-making has becoming an increasingly popular practice amongst Muslims, regardless of geographic location. This project aimed to improve the quality of life of Muslim ostomates by addressing faith-specific stoma concerns. Through close collaboration with Muslim ostomates, a series of 10 faith-related questions were generated, which were posed to invited local faith leaders during a stoma educational event. Faith leaders received education concerning the realities of stoma care before generating their fatawas. The event lead to the formulation of a series of stoma-specific fatawas representing Hanafi and Salafi scholarship, providing faith-based guidance for Muslim ostomates and their carers. Enhanced communication between healthcare providers and Islamic faith leaders allows for the delivery of informed fatawas that directly benefit Muslim patients and may represent an efficient method of improving health outcomes in this faith group.

A prospective observational study of abdominal injury management in contemporary military operations: damage control laparotomy is associated with high survivability and low rates of fecal diversion.

OBJECTIVE: This study describes the cause, management, and outcomes of abdominal injury in a mature deployed military trauma system, with particular focus on damage control, hollow visceral injury (HVI), and stoma utilization. BACKGROUND: Damage control laparotomy (DCL) is established in military and civilian practice. However, optimal management of HVI during military DCL remains controversial. METHODS: We studied abdominal trauma managed over 5 months at the Joint Force Combat Support Hospital, Camp Bastion, Afghanistan (Role 3). Data included demographics, wounding mechanism, injuries sustained, prehospital times, location of first laparotomy (Role 3 or forward), use of DCL or definitive laparotomy, subsequent surgical details, resource utilization, complications, and mortality. RESULTS: Ninety-four of 636 trauma patients (15%) underwent laparotomy. Military injury mechanisms dominated [44 gunshot wounds (47%), 44 blast (47%), and 6 blunt trauma (6%)]. Seventy-two of 94 patients (77%) underwent DCL. Four patients were palliated. Seventy of 94 (74%) sustained HVI; 44 of 70 (63%) had colonic injury. Repair or resection with anastomosis was performed in 59 of 67 therapeutically managed HVI patients (88%). Six patients were managed with fecal diversion, and 6 patients were evacuated with discontinuous bowel. Anastomotic leaks occurred in 4 of 56 HVI patients (7%) with known outcomes. Median New Injury Severity Score for DCL patients was 29 (interquartile range: 18-41) versus 19.5 (interquartile range: 12-34) for patients undergoing definitive laparotomy (P = 0.016). Overall mortality was 15 of 94 (16%). CONCLUSIONS: Damage control is now used routinely for battlefield abdominal trauma. In a well-practiced Combat Support Hospital, this strategy is associated with low mortality and infrequent fecal diversion.

Scanning and War: Utility of FAST and CT in the Assessment of Battlefield Abdominal Trauma.

OBJECTIVE: To determine utilization and accuracy of focused assessment with sonography for trauma (FAST) and computed tomography (CT) in a mature military trauma system to inform service provision for future conflicts. BACKGROUND: FAST and CT scans undertaken by attending radiologists contribute to surgical decision making for battlefield casualties at the Joint Force, Role 3 Medical Treatment Facility at Camp Bastion (R3), Afghanistan. METHODS: Registry data for abdominally injured casualties treated at R3 from July to November 2012 were matched to radiological and surgical records to determine diagnostic accuracy for FAST and CT and their influence on casualty management. RESULTS: A total of 468 casualties met inclusion criteria, of whom 85.0% underwent FAST and 86.1% abdominal CT; 159 (34.0%) had abdominal injuries. For detection of intra-abdominal injury, FAST sensitivity (Sn) was 0.56, specificity (Sp) 0.98, positive predictive value (PPV) 0.87, negative predictive value (NPV) 0.90, and accuracy (Acc) 0.89. For CT, Sn was 0.99, Sp 0.99, PPV 0.96, NPV 1.00, and Acc 0.99. Forty-six solid organ injuries were identified in 38 patients by CT; 17 were managed nonoperatively. A further 61 patients avoided laparotomy after CT confirmed extra-abdominal wounds only. The negative laparotomy rate was 3.9%. CONCLUSIONS: FAST and CT contribute to triage, guide surgical management, and reduce nontherapeutic laparotomy. When imaging is available, these data challenge current doctrine about inadvisability of nonoperative management of abdominal injury after combat trauma.

Size and distribution of lymph nodes in rectal cancer resection specimens.

BACKGROUND: The detection of lymph node involvement is fundamental to the staging of rectal cancer, and aids in prognostication and identification of patients who will benefit from adjuvant therapy. The anatomical variation in distribution and size of mesorectal lymph nodes has received scant attention. OBJECTIVE: This study aimed to determine the size and distribution of lymph nodes in rectal cancer resection specimens. DESIGN: This was a prospective, observational study of rectal cancer resection specimens analyzed by a single histopathologist. SETTING: This study was conducted from January 2007 to July 2013 at the authors' institution. PATIENTS: Two hundred forty-four consecutive patients underwent resection for rectal cancer. MAIN OUTCOME MEASURES: The size and distribution of lymph nodes in the resection specimens and the anatomical position of mesorectal lymph nodes in relation to the peritoneal reflection, tumor, and anal verge were recorded. RESULTS: A total of 10,473 lymph nodes were retrieved in 244 patients (75 women; median age, 68 years (interquartile range, 59-75 years)). One hundred seventy-three anterior resection and 71 abdominoperineal resection specimens were analyzed. Median lymph node yield was 41 lymph nodes (interquartile range, 31-52); 344 of 10,473 (3.2%) lymph nodes were positive. Lymph nodes were distributed in the mesorectum, sigmoid mesentery, and vascular pedicle in 40%, 32%, and 28% of the patients. Sixty-eight percent of mesorectal lymph nodes were above the peritoneal reflection. Mesorectal lymph node distribution in relation to the tumor was 53% above, 36% adjacent to, and only 11% below the tumor. Ninety-five of 334 (28%) positive nodes were ≤3 mm in diameter. LIMITATIONS: Resection specimens analyzed by other pathologists (<5%) have not been included, and fat clearance techniques were not used to retrieve lymph nodes. CONCLUSIONS: To ensure accurate nodal staging of rectal cancer, both resection and subsequent pathological evaluation should focus on the mesorectum in close proximity to the tumor and along the superior rectal artery. Small lymph nodes (<3 mm in size) should not be overlooked, and lymph node metastasis to the sigmoid mesentery is rare (see Video, Supplemental Digital Content 1, http://links.lww.com/DCR/A177).

Fifteen-minute consultation: the infant with a tongue tie.

Tongue tie is an increasingly common cause for referral of infants to our general paediatric surgery service. In this article, we will explore the indications for tongue tie division in the newborn child, the practicalities of the procedure and the supporting evidence.

Novel Textbook Outcomes following emergency laparotomy: Delphi exercise.

BACKGROUND: Textbook outcomes are composite outcome measures that reflect the ideal overall experience for patients. There are many of these in the elective surgery literature but no textbook outcomes have been proposed for patients following emergency laparotomy. The aim was to achieve international consensus amongst experts and patients for the best Textbook Outcomes for non-trauma and trauma emergency laparotomy. METHODS: A modified Delphi exercise was undertaken with three planned rounds to achieve consensus regarding the best Textbook Outcomes based on the category, number and importance (Likert scale of 1-5) of individual outcome measures. There were separate questions for non-trauma and trauma. A patient engagement exercise was undertaken after round 2 to inform the final round. RESULTS: A total of 337 participants from 53 countries participated in all three rounds of the exercise. The final Textbook Outcomes were divided into 'early' and 'longer-term'. For non-trauma patients the proposed early Textbook Outcome was 'Discharged from hospital without serious postoperative complications (Clavien-Dindo ≥ grade III; including intra-abdominal sepsis, organ failure, unplanned re-operation or death). For trauma patients it was 'Discharged from hospital without unexpected transfusion after haemostasis, and no serious postoperative complications (adapted Clavien-Dindo for trauma ≥ grade III; including intra-abdominal sepsis, organ failure, unplanned re-operation on or death)'. The longer-term Textbook Outcome for both non-trauma and trauma was 'Achieved the early Textbook Outcome, and restoration of baseline quality of life at 1 year'. CONCLUSION: Early and longer-term Textbook Outcomes have been agreed by an international consensus of experts for non-trauma and trauma emergency laparotomy. These now require clinical validation with patient data.

Intraoperative cell salvage in a combat support hospital: a prospective proof of concept study.

BACKGROUND: Provision of transfusion support is an important element of contemporary military operations, but presents a considerable logistic burden. Intraoperative blood salvage (IBS) offers the potential to reduce dependency on donated red blood cell (RBC) supply. The aim of this study was to assess the feasibility of IBS in an operational environment. STUDY DESIGN AND METHODS: A "salvage-only" IBS feasibility study was undertaken in a deployed, Anglo-American combat support hospital. All adult patients admitted with combat-related injuries likely to require more than 10 units of RBCs in 12 hours were included. The volume of salvaged blood available for reinfusion was collated with injury type. RESULTS: A total of 130 patients were admitted having sustained combat-related injury. Twenty-nine fulfilled the criteria, of which 27 were identified on admission. Eighteen cases were selected for IBS and salvage was completed in 17. From these 17, the mechanism of injury was 24% gunshot wound (GSW) and 76% blast injury, and injury type was 47% body cavity and 53% extremity. A total of 5578g RBC mass was salvaged and prepared for reinfusion, representing 7.6% of total requirement. The proportion of RBC mass salvaged to that required was greatest in those with GSWs and cavity injuries, being 39% (673g/1733g) and 16% (243g/1497g), respectively. CONCLUSION: Salvage is most successful in patients with GSWs and cavity injuries and less appropriate for limb and blast injuries. However, the results of this study present more arguments against IBS than for it, and further research is needed to determine its safety in combat settings.

Lessons for surgeons in the final moments of Air France Flight 447.

BACKGROUND: All surgeons make mistakes, and learning from critical incidents may help improve performance. The present study aimed to highlight lessons for surgeons from analysis of the final moments of Air France Flight 447. All of the authors work in teams and situations where safety, technical performance, and non-technical skills are critical. This review was born out of discussions regarding the events of Flight 447; specifically, whether the airline disaster was relevant to their work, and whether they could learn anything from it. METHODS: The study is based on review of the crash reports of Flight 447, which lost flight speed indication after formation of ice prevented air from entering flight speed indicators during a storm. Following a subsequent stall, the aircraft fell at a rate of >10,000 feet/min until it crashed into the Atlantic Ocean, killing 228 passengers and crew. RESULTS: There were errors in decision making, reasoning, communication, and teamwork. Such non-technical skills failures have been recognized previously and can be addressed by existing non-technical skills training. A reliance on autopilot meant that the pilots were unfamiliar with high-altitude flying when the autopilot is disengaged. They were unprepared for and affected by such a sudden and serious problem; an event called "surprise and startle" by the accident investigation. The absence of the senior pilot (who was on a scheduled break) in the critical final minutes slowed error recognition and recovery. CONCLUSIONS: Unintended consequences of modern safety strategies may be under-recognized and can lead to adverse events. Both simulation-based and non-simulation-based training should include "surprise and startle" events beyond the scenarios trainees might expect. Likewise, in the face of increasing reliance on modern technology, surgeons should ensure that they would be able to perform procedures in the absence of such technologies. Specific training may improve surgeons' non-technical skills, and recognition of such skills could also be used to help select future surgeons.

Establishing a COVID-secure site for elective surgery during the COVID pandemic: An observational study.

INTRODUCTION: Maintaining timely and safe delivery of major elective surgery during the COVID-19 pandemic is essential to manage cancer and time-critical surgical conditions. Our NHS Trust established a COVID-secure elective site with a level 2 Post Anaesthetic Care Unit (PACU) facility. Patients requiring level 3 Intensive Care Unit admission were transferred to a non-COVID-secure site. We investigated the relationship between perioperative anaesthetic care and outcomes. MATERIALS AND METHODS: All consecutive patients undergoing major surgery at the COVID-secure site between June and November 2020 were included. Patient demographics, operative interventions and 30-day outcomes were recorded. Multivariate logistic regression was used to determine the odds ratio of outcomes according to PACU length of stay and the use of spinal or epidural anaesthesia, with age, sex, malignancy status and American Society of Anesthesiologists grade as independent co-variables. RESULTS: There were 280 patients. PACU length of stay >23h was associated with increased 30-day complications. Epidural anaesthesia was associated with PACU length of stay >23h, increased total length of stay, increase hospital transfer and 30-day complications. Two patients acquired nosocomial COVID-19 following hospital transfer. DISCUSSION: Establishing a separate COVID-secure site has facilitated delivery of major elective surgery during the COVID-19 pandemic. Choice of perioperative anaesthesia and utilisation of PACU appear likely to affect the risk of adverse outcomes.

Anogenital injury following sexual assault and consensual sexual intercourse: a systematic review and meta-analysis.

Background: Sexual violence is a grave human rights violation and a serious global public health challenge. Rates of reporting of sexual violence and subsequent passage of cases through the criminal justice system are poor all over the world. The presence or absence of anogenital injury following sexual assault may influence survivors in their willingness to report a crime, and law enforcement officers and jurors in their decision making regarding the laying of charges and/or conviction of offenders. The aim of this systematic review was to compare rates of identification of anogenital injury (AGI) in women following sexual assault and consensual sexual intercourse using the same examination techniques. Methods: In this systematic review and meta-analysis, Medline, Embase and Google Scholar were searched for relevant studies (in any language, with no age or sex criteria) published between February 25, 1993, and February 25, 2023, that directly compared AGI between individuals after either sexual assault or consensual sexual intercourse. Abstracts, conference proceedings, and case reports were excluded. The primary outcome of interest was any form of detected AGI. The Mantel-Haenszel method was used for meta-analysis using random effects modelling to determine the risk ratio (RR) of AGI between sexual assault and consensual sexual intercourse. Quality assessment was undertaken using the Newcastle-Ottawa scale tool. The I2 statistic was used to determine heterogeneity among studies. An I2 >75% was considered high heterogeneity. Funnel plots were used to assess the risk of publication bias, by determining any visually apparent asymmetry. This analysis is registered with PROSPERO, CRD42023402468. Findings: We included 10 studies, accounting for 3165 study participants. All participants were female. AGI was detected in 901 (48%) of 1874 participants following sexual assault and 394 (31%) of 1291 participants following consensual sexual intercourse. Meta-analysis of all included studies demonstrated that the presence of AGI was significantly more likely for participants following sexual assault than consensual sexual intercourse (RR 1.59 (95% CI 1.21, 2.09); p < 0.001). There was a significant heterogeneity among studies and funnel plots suggest that this RR may be an over-estimation. Subgroup analysis including only high-quality studies showed no significant difference between groups. Interpretation: Although AGI was significantly more likely to be detected after sexual assault than consensual sexual intercourse, more than half of survivors of sexual assault have no detectable injuries. The presence of AGI, therefore, does not prove there has been sexual violence and absence of injury does not refute that sexual assault has occurred. Funding: The University of Birmingham.

Role of CT colonography in symptomatic assessment, surveillance and screening.

INTRODUCTION: When 'whole colonic imaging' is indicated, clinicians must decide between optical colonoscopy, barium enema and CT colonography (CTC). CTC is a relatively new technique which has become increasingly accessible in the UK over the past 5 years. As radiologists have gained experience and scanning parameters have standardised, there have been substantial improvements in both the accuracy and safety of CTC. METHODS: We review evidence from observational studies and randomised trials, and draw on expert opinion, to provide a comprehensive discussion of the current role of CTC in both symptomatic and asymptomatic individuals. CONCLUSIONS: The emergence of CTC could soon entirely obviate the need for barium enema. CTC now has a complementary role alongside colonoscopy in symptomatic patients and a possible future role in colorectal cancer screening in the UK.

Doctor on board? What is the optimal skill-mix in military pre-hospital care?

BACKGROUND: In a military setting, pre-hospital times may be extended due to geographical or operational issues. Helicopter casevac enables patients to be transported expediently across all terrains. The skill-mix of the pre-hospital team can vary. AIM: To quantify the doctors' contribution to the Medical Emergency Response Team-Enhanced (MERT-E). METHODS: A prospective log of missions recorded urgency category, patient nationality, mechanism of injury, medical interventions and whether, in the crew's opinion, the presence of the doctor made a positive contribution. RESULTS: Between July and November 2008, MERT-E flew 324 missions for 429 patients. 56% of patients carried were local nationals, 35% were UK forces. 22% of patients were T1, 52% were T2, 21.5% were T3 and 4% were dead. 48% patients had blast injuries, 25% had gunshot wounds, 6 patients had been exposed to blast and gunshot wounds. Median time from take-off to ED arrival was 44 min. A doctor flew on 88% of missions. It was thought that a doctor's presence was not clinically beneficial in 77% of missions. There were 62 recorded physician's INTERVENTIONS: the most common intervention was rapid sequence induction (45%); other interventions included provision of analgesia, sedation or blood products (34%), chest drain or thoracostomy (5%), and pronouncing life extinct (6%). CONCLUSION: MERT-E is a high value asset which makes an important contribution to patient care. A relatively small proportion of missions require interventions beyond the capability of well-trained military paramedics; the indirect benefits of a physician are more difficult to quantify.