Scene Of Injury Research Articles

Pre-hospital trauma care: A comparison of two healthcare systems

Introduction:The management of trauma patients differs depending upon the healthcare system available.Aim:To compare the pre-hospital management and outcome of polytrauma patients between two countries with differing approaches to pre-hospital management.Materials and Methods:The Scottish trauma and audit group (STAG) and the German trauma registry (GTR) databases were used to compare the management and outcome of trauma patients in Scotland and Germany. Severely injured patients (injury severity score (ISS) > 16) were analyzed for a 3 year period (2000 to 2002). Patient demographics, pre-hospital interventions, ISS, revised trauma score (RTS), time from scene of injury to arrival to the emergency department (ED), 120 day mortality and standardized mortality ratios using TRISS methodology were compared.Results:There were 227 patients identified from the STAG registry and 6878 patients from the GTR registry. There was a significant difference in ISS (24.9 vs. 29.8, P = 0.001, respectively). No significant difference was observed for the RTS (P = 0.2). There was a significantly higher rate of pre-hospital interventions in the German group (P < 0.001). The mean time from an injury to arrival to the ED (73 vs. 247 minutes, P = 0.001) was longer for the Scottish patients. There was no difference for an unadjusted mortality rate between the groups, but the standardized mortality ratio was significantly greater for the Scottish population (3.8 vs. 2.2, P = 0.036).Conclusion:Despite variation in pre-hospital transfer times and interventions, no significant difference was demonstrated in RTS upon arrival, or for the unadjusted mortality rates.

Helicopter transport

Traumatic injury continues to be a significant cause of morbidity and mortality in the year 2011. In addition, the healthcare expenditures and lost years of productivity represent significant economic cost to the affected individuals and their communities. Helicopters have been used to transport trauma patients for the past 40 years, but there are conflicting data on the benefits of helicopter emergency medical service (HEMS) in civilian trauma systems. Debate persists regarding the mortality benefit, cost-effectiveness, and safety of helicopter usage, largely because the studies to date vary widely in design and generalizability to trauma systems serving heterogeneous populations and geography. Strict criteria should be established to determine when HEMS transport is warranted and most likely to positively affect patient outcomes. Individual trauma systems should conduct an assessment of their resources and needs in order to most effectively incorporate helicopter transport into their triage model. Research suggests that HEMS improves mortality in certain subgroups of trauma patients, both after transport from the scene of injury and following interfacility transport. Studies examining the cost-effectiveness of HEMS had mixed results, but the majority found that it is a cost-effective tool. Safety remains an issue of contention with HEMS transport, as helicopters are associated with significant safety risk to the crew and patient. However, this risk may be justified provided there is a substantial mortality benefit to be gained. Recent studies suggest that strict criteria should be established to determine when helicopter transport is warranted and most likely to positively affect patient outcomes. Individual trauma systems should conduct an assessment of their resources and needs in order to most effectively incorporate HEMS into their triage model. This will enable regional hospitals to determine if the costs and safety risks associated with HEMS are worthwhile given the potential benefits to patient morbidity and mortality.

Societal Costs of Inappropriate Emergency Department Thoracotomy

Emergency department (ED) thoracotomy can be lifesaving. It can also lead to resource waste and exposure to blood-borne infections. We investigated the frequency with which ED thoracotomy was performed for inappropriate indications and the resulting societal costs. This retrospective cohort study examined all trauma patients admitted directly from the scene of injury from 1992 to 2009 who underwent ED thoracotomy. The main outcomes included inappropriate ED thoracotomy. Secondary outcomes included resource use and societal costs for performing ED thoracotomy for improper indications. Specifically, we analyzed for operating room use, blood transfusions, ICU and hospital stay, needlestick injuries, survivor rate, and neurological outcomes in this group. One hundred and twenty-three patients underwent ED thoracotomy during the study period. Of those, 63 (51%) were considered inappropriate. In this group, we observed no survivors, none became organ donors, 3 cases of needlestick injuries to health care providers occurred, and 335 U of blood products were used in their care. Also, 4 patients of 63 survived to the operating room and required a total of 6 separate operating room visits. Three of these patients had an ICU stay of 1 day and 1 died on day 5. ED thoracotomy should be reserved for potentially salvageable patients, but discouraged for other indications. From the societal point of view, inappropriate use of the procedure resulted in substantial costs and waste of resources, exposure of health care providers to possible blood-borne infections, and offered no survival benefit.

Association of Direct Helicopter Versus Ground Transport and In-hospital Mortality in Trauma Patients: A Propensity Score Analysis

Helicopter emergency medical services (HEMS) transport of trauma patients has been used for decades. Its use, however, is still a subject of debate, including issues such as high costs, increasing numbers of crashes, and conflicting results regarding effectiveness in reducing mortality. The aim of this study was to examine whether mode of transport (HEMS vs. ground EMS) is independently associated with mortality among trauma patients transported directly from the scene of injury to definitive care. All trauma patients transported directly to a Level I or Level II trauma center by either air or ground EMS over a 4-year period were selected from the Oklahoma State Trauma Registry. Multivariable logistic regression was used to develop propensity scores based on variables measured at the scene of injury. The propensity scores represented the predicted probabilities of a patient being transported by HEMS given a specific set of characteristics and were used as a composite confounding variable in subsequent models of the association of mortality and mode of transport. Along with the propensity scores, Injury Severity Scores (ISS), initial Revised Trauma Score (RTS), and distance from the trauma center were included in a Cox proportional hazards model of the association of mode of transport and 24-hour and 2-week mortality. Overall, the hazard ratio (HR) for 2-week mortality in patients transported by HEMS was 33% lower (HR = 0.67, 95% confidence interval [CI] = 0.54 to 0.84) than in patients transported by ground EMS from the scene of injury, after adjustment for the propensity score and other covariates. In subanalyses, the apparent association of a reduction in the hazard of early mortality among patients transported by HEMS was most evident for patients with an RTS based on injury scene vital signs of 3 to 7 (HR = 0.61, 95% CI = 0.46 to 0.82). The point estimate of the HR was similar (HR = 0.65 95% CI = 0.34 to 1.2) in the 75% of cases who had normal vital signs at the scene of injury, although it was no longer statistically significant because crude mortality was very low (1.7%) in this group. Among those with a RTS of 3 or less at the scene, crude mortality was 58%, and mode of transport was not associated with mortality (HR = 1.02, 95% CI = 0.68 to 1.6). Helicopter EMS transport was associated with a decreased hazard of mortality among certain patients transported from the scene of injury directly to definitive care. Refinements in scene triage and transport guidelines are needed to more effectively select patients that may benefit from HEMS transport from those unlikely to benefit.

Scene Versus Interhospital Air Medical Transport of Limb-Salvage Candidates

H. Werman, A. Zielinski, and B. Raetzke, The Ohio State University, Columbus, OH J. Nappi, Riverside Methodist Hospital, Columbus, OH Introduction: Patients sustaining limb-threatening injuries must undergo time-sensitive surgical repair in order to achieve maximal functional recovery. Air medical transport has been used to transport patients with these injuries from the scene of injury (SCENE) where short time intervals are achieved as well as from outside medical facilities (HOSP) following physician evaluation. It is not clear which strategy produces best outcomes. We sought to evaluate whether there was a difference between SCENE or HOSP in the percentage of patients taken to the operating room for definitive repair. Methods: All patients with isolated limb-threatening injuries between January 1, 2006 and July 31, 2010 who were transported by helicopter to a tertiary limb-salvage center were included in the analysis. Demographic data including age, gender, injury site and prior medical history were obtained. Patients were dichotomized between SCENE and HOSP with regards to site of origin. Outcomes including discharge from ED, those taken to OR and those who underwent formal salvage procedure were collected. A chi square analysis was conducted to determine whether there was a difference between SCENE and HOSP in the percentage of who underwent definitive repair. Results: During the study period, 115 patients were transferred for limb salvage by helicopter. 86% of patients were male with an average age of 43.3 years (6-86 years). Sixty (52.2%) of patients were HOSP while 55 (47.8%) were SCENE. The upper extremity was involved in 72.9% of cases. Complicating medical factors included diabetes (9.6%), tobacco use (19.2%) and anticoagulant use (16.7%). No patient had documented peripheral vascular disease or steroid use. Of 115 patients, 104 went to the OR (90%) and 84 (80%) had a repair attempted. 41/49 (84%) of SCENE and 43/55 (78%) of HOSP had a definitive repair attempted (p 0.48). Conclusion: In our referral area, a significant number of patients transferred in to a tertiary center for limb-salvage procedures underwent definitive repair in the OR. There was no significant difference between those patients transported after ED assessment when compared to those transported directly from the scene. Further studies should evaluate whether SCENE transfer is both a cost-effective and time-saving strategy for limb-salvage patients.

The importance of context: Evidence that contextual representations increase intrusive memories

Background and objectives Intrusive memories appear to enter consciousness via involuntary rather than deliberate recollection. Some clinical accounts of PTSD seek to explain this phenomenon by making a clear distinction between the encoding of sensory-based and contextual representations. Contextual representations have been claimed to actively reduce intrusions by anchoring encoded perceptual data for an event in memory. The current analogue trauma study examined this hypothesis by manipulating contextual information independently from encoded sensory-perceptual information. Method Participants’ viewed images selected from the International Affective Picture System that depicted scenes of violence and bodily injury. Images were viewed either under neutral conditions or paired with contextual information. Results Two experiments revealed a significant increase in memory intrusions for images paired with contextual information in comparison to the same images viewed under neutral conditions. In contrast to the observed increase in intrusion frequency there was no effect of contextual representations on voluntary memory for the images. The vividness and emotionality of memory intrusions were also unaffected. Limitations The analogue trauma paradigm may fail to replicate the effect of extreme stress on encoding postulated to occur during PTSD. Conclusions These findings question the assertion that intrusive memories develop from a lack of integration between sensory-based and contextual representations in memory. Instead it is argued contextual representations play a causal role in increasing the frequency of intrusions by increasing the sensitivity of memory to involuntary retrieval by associated internal and external cues.

A Systematic Review of Methods of Eye Irrigation for Adults and Children with Ocular Chemical Burns

To present the best available research evidence on eye irrigation methods for ocular chemical burns to facilitate better-informed clinical decisions. Randomized, quasi-randomized controlled trials and observational studies comparing the effectiveness of eye irrigation methods among adults or children as an active form of emergency treatment for ocular chemical burns were reviewed. Electronic databases in English and Chinese were searched from inception to June 2010. Two reviewers made independent decisions on whether to include each publication in the review and critically appraised the study quality independently. Given the clinical and methodological diversity among the studies, the review findings are presented in a narrative form. Four studies involving 302 adults and children were identified. The results of this review indicate that patients who underwent irrigation with tap water immediately following alkali burns at the scene of injury had significantly better clinical and ocular outcomes. The evidence also suggests that in hospital settings, more patients preferred balanced saline solution (BSS) plus than other irrigation fluids. Irrigation with diphoterine was found in one study that resulted in better ocular outcomes following grade 1 and 2 ocular burns. With regard to duration of eye irrigation, patients with ocular chemical burns treated with prolonged irrigation reported shorter duration of treatment at hospital and absence from work. The results should be treated with caution, as there were significant differences between the comparison groups in some studies. As prompt eye irrigation with tap water immediately after alkali burns had better outcomes, it would be important to commence eye irrigation immediately after burns are sustained. In this review, irrigating fluids including normal saline, lactated Ringer's, normal saline with sodium bicarbonate added, BSS Plus, and diphoterine solutions all yielded positive ocular outcomes suggesting for its use in hospital settings.

Reducing Time-to-Treatment Decreases Mortality of Trauma Patients with Acute Subdural Hematoma

To determine if reducing prehospital time and time-to-craniotomy is associated with decreased mortality in trauma patients with acute subdural hematomas. Time-to-treatment is an important performance filter for trauma systems, yet very little evidence exists to support its use. Despite the biological rationale supporting the notion of the "Golden Hour" for trauma patients, no evidence exists to support it. Likewise, it remains controversial whether or not time-to-craniotomy is associated with survival in patients with subdural hematomas. Previous studies may have been affected by selection bias. Retrospective cohort study of all trauma patients who arrived directly from the scene of injury. Study patients were all patients with acute subdural hematomas and without severe torso injuries, who required craniotomy at a Canadian level 1 trauma center from January 1 1996 to December 31 2007. The independent variables of interest were prehospital time and time-to-craniotomy. The primary outcome measure was in-hospital mortality. Of 12,105 trauma patients assessed, 149 patients met inclusion criteria. Overall, 40% (n = 60) patients died. On univariate analysis, there was a strong trend suggesting that patients arriving within the "Golden Hour after trauma" had decreased mortality (37% vs. 53%, P = 0.09). However, there was no difference in mortality for patients undergoing craniotomy within 4 hours and after 4 hours (42% vs. 36%, P = 0.4). On multivariate logistic regression, increased prehospital time was found to be associated with increased mortality (odds ratio 1.03 per minute, 95% CI 1.004-1.05, P = 0.024). Surprisingly, there was a trend showing that increased trauma room to craniotomy times were associated with lower mortality (odds ratio 0.995 per minute, 95% CI 0.99-1.0, P = 0.056). However, patients who quickly had their craniotomy seemed to have more severe neurological injury. Rapid transport of patients with traumatic subdural hematomas hospital is associated with decreased mortality.

The casualty chain inventory: a new scale for measuring peritraumatic responses: a cross-sectional study

BackgroundPeritraumatic psychological- and sensory impressions in victims of civilian accidents are only partly understood. This study scrutinizes the level and duration of perceived psychological threat at scene of injury as well as in hospital (the casualty chain) measured by the Casualty Chain Inventory (CCI). The purpose of the study was to assess and validate the CCI, and to examine the correlations between the new instrument and stress responses measured by the Impact of Event Scale (IES) and the Post-traumatic Stress Scale-10 (PTSS-10)MethodsThree hundred and fifteen injured, conscious, hospitalised patients were assessed with a self-report questionnaire. The CCI consists of eight items including sensory impressions and well-known psychological responses to trauma.ResultsThe internal consistency of the CCI was solid (Cronbach's alpha: .83-.85). A factor analysis revealed two components, "perception" and "dissociation". The instrument correlates significantly with the Impact of Event Scale (r = 0.47 - 0.54) and the Posttraumatic Stress Scale-10 (r = 0.32 - 0.50). The explained variance is high both at the scene of injury (61%) and in the hospital (65%). Dissociation and perception either used as a two-factor solution or as a sum score measured in the hospital, gave the strongest prediction for later psychological distress.ConclusionsThe CCI appears to be a useful screening instrument for, at an early state, identifying patients hospitalized after a physical incident at risk for subsequent psychological distress.

Early fluid resuscitation in patients with rhabdomyolysis

Extensive rhabdomyolysis is often lethal unless treated immediately. Early mortality arises from hypovolemic shock, hyperkalemia, acidosis and myoglobinuric acute kidney injury (AKI). Many individuals with rhabdomyolysis could be saved, and myoglobinuric AKI prevented, by early vigorous fluid resuscitation with ≥12 l daily intravenous infusion of alkaline solution started at the scene of injury. This regimen stabilizes the circulation and mobilizes edema fluids sequestered in the injured muscles into the circulation, corrects hyperkalemia and acidosis, and protects against the nephrotoxic effects of myoglobinemia and hyperuricosuria. This regime results in a large positive fluid balance, which is well tolerated in young, carefully monitored individuals. In patients with rhabdomyolysis caused by muscle crush syndrome, mortality has been reduced from nearly 100% to <20% over the past 70 years through utilization of this intervention. This Perspectives discusses the lifesaving and limb-saving potential of early vigorous fluid resuscitation in patients with extensive traumatic and nontraumatic rhabdomyolysis.

Profile, transport and outcomes of severe burns patients within an inclusive, regionalized trauma system

Severe burns represent a challenging and complex clinical presentation, requiring highly specialized burns centres that are staffed and equipped appropriately. The integration of burns care into trauma systems has been recommended. This study describes the profile, transfer and outcomes of severe burns within an inclusive, regionalized trauma system. A retrospective analysis of prospectively collected data from the Victorian State Trauma Registry for the period July 2001–June 2009 was performed. Major trauma cases with any burn injury were analysed. A severe burns case was defined as a total body surface area (TBSA) burned ≥20%. Descriptive statistics were used to define the profile of severe burns cases, their management and in-hospital outcomes. For the 315 cases, the mean (standard deviation) age was 39 (22) years, and 73% were male. Fire/flames was the predominant cause (72%), and 39% sustained an inhalation injury. All paediatric (n = 37) and 98% of adult cases with a %TBSA ≥20 were managed at the state's burn services. Half of the cases experienced an inter-hospital transfer. Sixty-seven percent of cases were admitted to the intensive care unit, 22% died in-hospital and the median length of stay was 31 days. An inclusive trauma system with burns services co-located at the major trauma services resulted in almost complete referral of severe burns cases to burns services for management. Half of the cases arrived at the burns services directly from the scene of injury, highlighting the importance of ongoing clinical education about the initial management of severe burns at non-burns service hospitals.

Commentary: Making a Difference in Emergency Medical Services

Commentary: Making a Difference in Emergency Medical Services

Factors at the Scene of Injury Associated with Air versus Ground Transport to Definitive Care in a State with a Large Rural Population

Background. Once emergency medical services (EMS) personnel decide to transport a trauma patient directly to definitive care, the next key decision at the scene of injury is whether to transport by air or ground. Objective. The aim of this study was to identify factors at the scene of injury that are associated with this decision. Methods. All trauma patients transported directly to a level I or level II trauma center by either air or ground EMS over a four-year period were selected from the Oklahoma State Trauma Registry. Initial scene vital signs, Glasgow Coma Scale score (GCS), injury mechanism, anatomic triage criteria, age, time of day, ground EMS service level, and scene location were collected. Scene location ZIP code centroids were geocoded and used to calculate distance to the trauma center. Following bivariate analyses, multivariable logistic regression models were developed within three strata defined by distance (>35, 16–35, and <16 miles). Results. More than 80% of the patients beyond 35 miles were transported by air, compared with 32% from 16–35 miles and only 4% from <16 miles. Regardless of distance, patients transported by helicopter tended to be younger, more often had abnormal vital signs, and more frequently came from areas served by a basic or intermediate ground EMS agency, as compared with patients transported by ground. Within each distance stratum, patients injured in severe motor vehicle crashes, motorcycle crashes, or pedestrian incidents were more likely to be transported by air. A GCS <14 was the only patient-related factor consistently associated with increased odds of air transport. Conclusion. Distance is the main factor in deciding whether to use air or ground EMS to transport a trauma patient from the scene of injury to a trauma center. With the exception of GCS <14, injury etiology was more strongly and consistently associated with the decision to transport by air than were patient related-factors. Identifying factors influencing the field transport decision will help develop transport guidelines that make efficient use of EMS resources.

Being Blue in Hawai‘i: Politics, Affect, and the Last Queen of Hawai‘i

For Hawaiian self-rule activists, who retain ties to the land and forms of sociality emerging out of the land, the US is regarded as an occupier force, and nonnative ownership, whether white or Japanese, a blighting catastrophe justifying resentment and rage. The demise of the Kingdom of Hawai‘i, when an oligarchy of US white settler businessmen overthrew Queen Liliʻuokalani (1838–1917) in 1893, reduced aloha ‘āina (or land-cherishing) to a ghostly affect; to be blue in Hawai‘i, today, is to be in a state of ongoing and implacable mourning. This essay explores several affective historical scenes of Hawaiian injury: from the early nineteenth century, when Protestant missionaries began their effort to transform Hawaiian sensibilities; onto the Queen’s forced abdication via the McKinley 1898 annexation; and finally to the contemporary era of Hawaiian nationalist protest. The Queen’s story, contextualized by brief case studies of native bereavement earlier in the century (David Malo and Henry Obookiah), leads in the final sections to a query of the relation of affect—whether melancholic or rageful—to political effect. The essay concludes with a critical coda on President Obama’s declaration (in a speech given in Hawai‘i, before elected) that the “Aloha spirit” is “what America is looking for right now.” The problem with liberalism, as it is with certain versions of local/global studies, is that wounded, grievous affect cannot readily be translated (there is no efficacious transference) into specific political praxis.

Pre-hospital determinants of outcome in traumatic brain injury: Experiences from first comprehensive integrated pre-hospital care providers in India: GVK — EMRI Experience

Indian studies have reported that nearly 1.5 to 2 million persons are injured and 1 million succumb to death every year in India due to traumatic brain injury. Road traffic injuries are the leading cause (60%) of TBIs followed by falls (20%-25%) and violence (10%).It is also a known fact that the best facilities, equipment and skill sets in terms of emergency room, ICU facilities, neurosurgical skills and equipment cannot reverse damage sustained at scene of injury or enroute to hospital. Airway obstruction and aspiration are major cause of death in treatable head injuries. The aims of prevention of secondary brain injury can be met with only in pre-hospital settings. All these facts underscore the need for an efficient pre-hospital care management of head injuries. However, in India, till 2005, no comprehensive data has been available on this aspect of management, because there was no integrated comprehensive pre-hospital care providing service available. In 2005, Emergency Management and Research Institute (EMRI) was established, to take a lead role in providing pre-hospital care. We wish to share our experience and the findings in pre hospital management of Traumatic Brain Injuries(TBI).This is retrospective study of 1607 cases of traumatic brain injury handled by EMRI, in the state of Andhra Pradesh, from 01 Jan 08 to 31 Dec 08. Data captured on patient case report forms (PCR) for this segment of emergencies was reviewed. We studied various components of the data having a bearing on outcome, namely the social, demographic, clinical determinants, response times and outcome.The demographic determinants reveal that incidence of head injury in men is more than twice that in women. It is the people in prime of their age (21–45) who are affected most. The share of victims handled by EMRI shows a preponderance of economically deprived population amongst victims. Analysis of different risk factors revealed that systolic BP at scene and at hospital is significantly correlated with outcome. Paired sample T-test showing a 2-tailed significance of P<0.01at 95 % CI: 3.717–8.777, with T value of 4.843. GCS analysis revealed significant correlation with outcome at level of p<0.01, with Pearson's ‘R’ value of .071. Age of victim showed significant correlation at p<0.05 level with Pearson's R value of.087. SPO2 showed significant correlation with outcome with a significance at level of p < 0.01, and Pearson's ‘R’ value of 0.217. The mean response time was found to be statistically significant at p<0.05 level and a ‘Pearson's R’ value of .094. One way Anova studies showed distance to be significant at P< 0.05 level at 95 % CI: 16.56–43.35, with a f value of 4.376.It is evident from the study that the analysis of risk factors leading to establishing guidelines and protocols for pre hospital management of head injuries can definitely contribute to improving outcomes in TBI.

Helicopters and the Civilian Trauma System: National Utilization Patterns Demonstrate Improved Outcomes After Traumatic Injury

The role of helicopter transport (HT) in civilian trauma care remains controversial. The objective of this study was to compare patient outcomes after transport from the scene of injury by HT and ground transport using a national patient sample. Patients transported from the scene of injury by HT or ground transport in 2007 were identified using the National Trauma Databank version 8. Injury severity, utilization of hospital resources, and outcomes were compared. Stepwise logistic regression was used to determine whether transport modality was a predictor of survival or discharge to home after adjusting for covariates. There were 258,387 patients transported by helicopter (16%) or ground (84%). Mean Injury Severity Score was higher in HT patients (15.9 ± 12.3 vs. 10.2 ± 9.5, p < 0.01), as was the percentage of patients with Injury Severity Score >15 (42.6% vs. 20.8%; odds ratio [OR], 2.83; 95% confidence interval [CI], 2.76-2.89). HT patients had higher rates of intensive care unit admission (43.5% vs. 22.9%; OR, 2.58; 95% CI, 2.53-2.64) and mechanical ventilation (20.8% vs. 7.4%; OR, 3.30; 95% CI, 3.21-3.40). HT was a predictor of survival (OR, 1.22; 95% CI, 1.17-1.27) and discharge to home (OR, 1.05; 95% CI, 1.02-1.07) after adjustment for covariates. Trauma patients transported by helicopter were more severely injured, had longer transport times, and required more hospital resources than those transported by ground. Despite this, HT patients were more likely to survive and were more likely to be discharged home after treatment when compared with those transported by ground. Despite concerns regarding helicopter utilization in the civilian setting, this study shows that HT has merit and impacts outcome.

Survival of the Fittest: The Hidden Cost of Undertriage of Major Trauma

Injured patients cared for in trauma centers have a lower risk of death than those cared for in nontrauma centers. However, many patients are transported to a non-trauma center after injury (undertriaged) and require transfer to trauma center care. Previous analyses of undertriage focused only on survivors to trauma center care and were potentially subject to survivor bias. Using a novel population-based design, we evaluated the true mortality cost of undertriage. We used a retrospective cohort design and included all severely injured patients surviving to reach an emergency department within the province of Ontario, Canada. Those patients who were triaged to a non-trauma center as their first hospital exposure were the Undertriage cohort. Undertriage cohort patients were either transferred to a trauma center (Transfer cohort) or died before transfer could be accomplished (emergency department-death cohort). Patients that were transported directly from the scene of injury to a trauma center represented the Direct cohort. Thirty-day mortality in undertriaged patients was analyzed using two approaches: allowing for survivor bias (Transfer versus Direct) and without survivor bias (Undertriage versus Direct). Among 11,398 patients, 66% were transported directly to a trauma center and 30% were transferred. Four percent died before transfer (22% of all deaths). Reproducing approaches that ignore survivor bias, mortality in the Transfer and Direct cohorts was equivalent. However, unbiased assessment demonstrated that mortality was significantly higher in the Undertriage cohort than the Direct cohort (odds ratio = 1.24; 95% CI, 1.10-1.40). Undertriage after major trauma is associated with substantial mortality. These data suggest a need to design strategies to improve triage to trauma center.

Prognosis for Children in Cardiac Arrest Shortly After Blunt Cranial Trauma

The goal of this investigation is to determine the success rate of aggressive cardiorespiratory resuscitation in children who experience blunt cranial trauma of sufficient magnitude to quickly cause cardiac arrest. The records of all the children who, within a 6-year period, suffered cardiac arrest at the scene of injury, during transport or in the emergency department of a level one pediatric trauma center, as a consequence of blunt cranial trauma, form the basis of this study. One of the 40 children who met the inclusion criteria survived. Their ages ranged from 1 month to 16 years, and all had a Glasgow Coma Score of 3 at the scene of injury. Forty-two percent were passengers in motor vehicles, and 32% were victims of nonaccidental trauma. Eleven of the 17 children in the motor vehicle crash were not properly restrained. Eleven of the unrestrained children plus two who were properly restrained were ejected at the time of impact. The average cardiopulmonary resuscitation time was 36 (2-107) minutes. A sinus rhythm was established in 50% but was not sustained in most. The sole survivor was an 8-year-old boy who was ejected and had asystole at the scene. At discharge, he was walking well but had cranial nerve deficits and learning disability. Survival in 40 consecutive children with documented cardiac arrest caused by blunt cranial trauma was 2.5%. This series, when combined with other published reports, is supportive of the position that aggressive resuscitation is rarely successful after 10 minutes and futile after 20 minutes.

Emergency department blood transfusion predicts early massive transfusion and early blood component requirement

The purpose of this study was to evaluate the ability of uncrossmatched transfusions in the emergency department (ED) to predict early (< 6 hr) massive transfusion (MT) of red blood cells (RBCs) and blood components. All patients admitted to a Level 1 trauma center between July 2005 and June 2007 who received any transfusions and were transported directly from the scene of injury were included. Early MT was defined as the need for 10 U or more or RBCs in the first 6 hours. Early MT plasma was defined as 6 U or more of plasma in the first 6 hours. Early MT platelets (PLTs) were defined as two or more apheresis transfusions in the first 6 hours. Univariate and multivariate analyses were performed. A total of 485 patients (34%) received ED transfusions (ED RBC+) and 956 (66%) did not receive ED transfusions (ED RBC-). ED RBC+ patients were younger, were more likely to be male, and arrived with more severe injuries. Multivariate regression identified ED transfusion of uncrossmatched RBC as an independent predictor of requiring early MT of RBCs (odds ratio [OR], 3.5; 95% confidence interval [CI], 1.36-7.59; p = 0.001), plasma (OR, 2.7; 95% CI, 1.66-4.39; p < 0.001), and PLTs (OR, 1.9; 95% CI, 1.08-3.41; p = 0.025). Patients receiving uncrossmatched RBCs in the ED are more than three times more likely to receive early MT of RBCs. Additionally, patients transfused with ED RBCs are more likely to receive 6 units or more of plasma and two or more apheresis PLT transfusions. Given these findings, ED transfusion of uncrossmatched RBCs should be considered a potential trigger for activation of an institution's MT protocol.

Is it the H or the EMS in HEMS that has an impact on trauma patient mortality? A systematic review of the evidence

Background and aimPrehospital care of trauma patients is a matter of great debate. The optimal transport method remains undecided, with conflicting data comparing helicopter and ground emergency medical transfer. This...