Anesthesia for Trauma Patients.

An improved understanding of the pathophysiology of combat trauma has evolved over the past decade and has helped guide the anesthetic care of the trauma patient requiring surgical intervention. Trauma anesthesia begins before patient arrival with warming of the operating room, preparation of anesthetic medications and routine anesthetic machine checks. Induction of anesthesia must account for potential hemodynamic instability and intubation must consider airway trauma. Maintenance of anesthesia is accomplished with anesthetic gas, intravenous infusions or a combination of both. Resuscitation must precede or be ongoing with the maintenance of anesthesia. Blood product transfusion, antibiotic administration, and use of pharmacologic adjuncts (e.g., tranexamic acid, calcium) all occur simultaneously. Ventilatory strategies to mitigate lung injury can be initiated in the operating room, and resuscitation must be effectively transitioned to the intensive care setting after the case. Good communication is vital to efficient patient movement along the continuum of care. The resuscitation that is undertaken before, during and after operative management must incorporate important changes in care of the trauma patient. This Clinical Practice Guideline hopes to provide a template for care of this patient population. It outlines a method of anesthesia that incorporates the induction and maintenance of anesthesia into an ongoing resuscitation during surgery for a trauma patient in extremis.

The Afghan Theater: A Review of Military Medical Doctrine From 2008 to 2014.

This article forms part of a series that will explore the effect that Role 2 (R2) medical treatment facilities (MTFs) had on casualty care during the military campaign in Afghanistan and how we should interpret this to inform the capabilities in, and training for future R2 MTFs. Key aspects of doctrine which influence the effectiveness of R2 MTFs include timelines to care, patient movement capabilities, and MTF capabilities. The focus of this analysis was to review allied doctrine from the United States, United Kingdom, and the North Atlantic Treaty Organization to identify similarities and differences regarding employment of R2 related medical assets in the Afghan Theater, specifically for trauma care. Several discrepancies in medical doctrine persist among allied forces. Timelines to definitive care vary among nations. Allied nations should have clear taxonomy that clearly defines MTF capabilities within the combat casualty care system. The R2 surgical capability discrepancy between United States and North Atlantic Treaty Organization doctrine should be reconciled. Medical evacuation capabilities on the battlefield would be improved with a taxonomy that reflected the level of capability. Such changes may improve interoperability in a dynamic military landscape.

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.