Comparison of revised Functional Capacity Index scores with Abbreviated Injury Scale 2008 scores in predicting 12-month severe trauma outcomes.

INTRODUCTION: Anatomical injury as measured by the AIS often accounts for only a small proportion of variability in outcomes after injury. The predictive Functional Capacity Index (FCI) appended to the 2008 AIS claims to provide a widely available method of predicting 12-month function following injury. OBJECTIVES: To determine the extent to which AIS-based and FCI-based scoring is able to add to a simple predictive model of 12-month function following severe injury. METHODS: Adult trauma patients were drawn from the population-based Victorian State Trauma Registry. Major trauma and severely injured orthopaedic trauma patients were followed up via telephone interview including Glasgow Outcome Scale-Extended, the EQ-5D-3L and return to work status. A battery of AIS-based and FCI-based scores, and a simple count of AIS-coded injuries were added in turn to a base model using age and gender. RESULTS: A total of 20 813 patients survived to 12 months and had at least one functional outcome recorded, representing 85% follow-up. Predictions using the base model varied substantially across outcome measures. Irrespective of the method used to classify the severity of injury, adding injury severity to the model significantly, but only slightly improved model fit. Across the outcomes evaluated, no method of injury severity assessment consistently outperformed any other. CONCLUSIONS: Anatomical injury is a predictor of trauma outcome. However, injury severity as described by the FCI does not consistently improve discrimination, or even provide the best discrimination compared with AIS-based severity scores or a simple injury count.

Impact of Trauma System Structure on Injury Outcomes: A Systematic Review and Meta-Analysis.

BACKGROUND: The effectiveness of trauma systems in decreasing injury mortality and morbidity has been well demonstrated. However, little is known about which components contribute to their effectiveness. We aimed to systematically review the evidence of the impact of trauma system components on clinically important injury outcomes. METHODS: We searched MEDLINE, EMBASE, Cochrane CENTRAL, and BIOSIS/Web of Knowledge, gray literature and trauma association Web sites to identify studies evaluating the association between at least one trauma system component and injury outcome. We calculated pooled effect estimates using inverse-variance random-effects models. We evaluated quality of evidence using GRADE criteria. RESULTS: We screened 15,974 records, retaining 41 studies for qualitative synthesis and 19 for meta-analysis. Two recommended trauma system components were associated with reduced odds of mortality: inclusive design (odds ratio [OR] = 0.72 [0.65-0.80]) and helicopter transport (OR = 0.70 [0.55-0.88]). Pre-Hospital Advanced Trauma Life Support was associated with a significant reduction in hospital days (mean difference [MD] = 5.7 [4.4-7.0]) but a nonsignificant reduction in mortality (OR = 0.78 [0.44-1.39]). Population density of surgeons was associated with a nonsignificant decrease in mortality (MD = 0.58 [-0.22 to 1.39]). Trauma system maturity was associated with a significant reduction in mortality (OR = 0.76 [0.68-0.85]). Quality of evidence was low or very low for mortality and healthcare utilization. CONCLUSIONS: This review offers low-quality evidence for the effectiveness of an inclusive design and trauma system maturity and very-low-quality evidence for helicopter transport in reducing injury mortality. Further research should evaluate other recommended components of trauma systems and non-fatal outcomes and explore the impact of system component interactions.

Establishing a standard for assessing the appropriateness of trauma team activation: a retrospective evaluation of two outcome measures.

BACKGROUND: Trauma team activation (TTA) is a well-recognised standard of care to provide rapid stabilisation of patients with time-critical, life-threatening injuries. TTA is associated with a substantial use of valuable hospital resources that may adversely impact upon the care of other patients if not carefully balanced. This study aimed to determine which of the two outcome measures would be a better standard for assessing the appropriateness of TTA at a paediatric centre: retrospective major trauma classification as defined within our state, and the use of emergency department high-level resources as recently published by Falcone et al (Falcone Interventions; FI). METHODS: Trauma registry data and patients' charts between February 2011 and June 2013 were reviewed. Over-triage and under-triage rates for TTA, using both major trauma and FIs as outcome measures, were compared. RESULTS: Totally, 280 patients received TTA, 243 met major trauma definition and 102 received one or more FIs. The rates of over-triage and under-triage were 39.7% (95% CI 35.0 to 44.6%) and 30.5% (95% CI 26.2 to 35.2%), when the major trauma definition was used as the outcome measure, and 67.5% (95% CI 62.2 to 72.5%) and 10.8% (95% CI 7.9 to 14.8%) when FI was used. Only 17.1% (95% CI 11.4% to 24.7%) of the under-triaged patients using the major trauma definition received one or more FIs. CONCLUSIONS: Assessment of TTA appropriateness varied significantly based on the outcome measure used. FIs better reflected the use of acute-care TTA-related resources compared with the major trauma definition, and it should be used as the gold standard to prospectively assess and refine TTA criteria.

Trampoline Park Injury Trends.

OBJECTIVES: Trampolines are an important cause of childhood injury and focus of injury prevention. Understanding and prevention of trampoline park injury is constrained by inadequate exposure data to estimate the at-risk population. This study aimed to measure trampoline park injury incidence and time trends using industry data. METHODS: Cross-sectional study to retrospectively analyze reported injuries and exposure in 18 trampoline parks operating in Australia and the Middle East, from 2017 to 2019. Exposure was derived from ticket sales and expressed as jumper hours. Exposure-adjusted incidence was measured using marginalized 0-inflated Poisson modeling and time trends using Joinpoint regression. RESULTS: There were 13 256 injured trampoline park users reported from 8 387 178 jumper hours; 11% sustained significant injury. Overall, trampoline park injuries occurred at a rate of 1.14 injuries per 1000 jumper hours (95% confidence intervals 1.00 to 1.28), with rates highest for high-performance (2.11/1000 jumper hours, 1.66 to 2.56) and inflatable bag or foam pit (1.91/1000 jumper hours, 1.35 to 2.50) jumping. Significant injuries occurred at a rate of 0.11 injuries per 1000 jumper hours (0.10 to 0.13), with rates highest for high-performance (0.29/1000 jumper hours, 0.23 to 0.36), and parkour (0.22/1000 jumper hours, 0.15 to 0.28) jumping. Overall, injury rates decreased by 0.72%/month (-1.05 to -0.40) over the study period. CONCLUSIONS: Trampoline park injuries occur in important numbers with sometimes serious consequences. However, within these safety standard-compliant parks, exposure-adjusted estimates show injuries to be uncommon and injury rates to be declining. Further reductions are required, especially severe injuries, and this study can enhance injury prevention initiatives.

Development of a standardized minimum dataset for including low-severity trauma patients in trauma registry collections in Australia and Aotearoa New Zealand.

BACKGROUND: Trauma continues to place a burden on individuals, communities and health care systems around the world. To help reduce this burden and improve care, trauma registries in Australia and Aotearoa New Zealand collect standardized data on patients admitted with Injury Severity Scores greater than 12. There is currently no agreed minimum data set for trauma patients with Injury Severity Score less than 13, representing an opportunity to provide more data for quality improvement and injury prevention. METHODS: A binational, expert, advisory group assessed the value of potential fields for a minimum dataset for low severity trauma. Existing trauma registries in Australia and Aotearoa New Zealand were assessed to ensure compatibility. RESULTS: Thirty-five data fields met criteria for inclusion in the low-severity minimum dataset. The fields comprised a subset of the Australia New Zealand Major Trauma Registry and were included in existing low-severity registries. CONCLUSION: A minimum data set for low severity has been defined for use in Australia and Aotearoa New Zealand. In addition to high severity trauma data this will provide a standard for data collection that will contribute to quality improvement and injury prevention.

Pediatric Trauma and Trauma Team Activation in a Swiss Pediatric Emergency Department: An Observational Cohort Study.

BACKGROUND: Trauma is one of the most common causes of death in childhood, but data on severely injured Swiss children are absent from existing national registries. Our aim was to analyze trauma activations and the profiles of critically injured children at a tertiary, non-academic Swiss pediatric emergency department (PED). In the absence of a national pediatric trauma database, this information may help to guide the design of infrastructure, processes within organizations, training, and policies. METHODS: A retrospective analysis of pediatric trauma patients in a prospective resuscitation database over a 2-year period. Critically injured trauma patients under the age of 16 years were included. Patients were described with established triage and injury severity scales. Statistical evaluation included logistic regression analysis. RESULTS: A total of 82 patients matched one or more of the study inclusion criteria. The most frequent age group was 12-15 years, and 27% were female. Trauma team activation (TTA) occurred with 49 patients (59.8%). Falls were the most frequent mechanism of injury, both overall and for major trauma. Road-traffic-related injuries had the highest relative risk of major trauma. In the multivariate analysis, patients receiving medicalized transport were more likely to trigger a TTA, but there was no association between TTA and age, gender, or Injury Severity Score (ISS). Nineteen patients (23.2%) sustained major trauma with an ISS > 15. Injuries of Abbreviated Injury Scale severity 3 or greater were most frequent to the head, followed by abdomen, chest, and extremities. The overall mortality rate in the cohort was 2.4%. Conclusions: Major trauma presentations only comprise a small proportion of the total patient load in the PED, and trauma team activation does not correlate with injury severity. Low exposure to high-acuity patients highlights the importance of deliberate learning and simulation for all professionals in the PED. Our findings indicate that high priority should be given to training in the management of severely injured children in the PED. The leading major trauma mechanisms were preventable, which should prompt further efforts in injury prevention.

Pediatric pelvic fracture: a modification of a preexisting classification.

BACKGROUND: The classic pediatric pelvic fracture (PPF) classification was developed by Torode and Zeig in 1985 and is based exclusively on plain radiographs. The purpose of this study was to propose a modification to a previously accepted PPF classification scheme and discuss the significance of this modification with respect to treatment and management of PPF over an 8-year period at a large pediatric hospital. METHODS: PPFs were recorded on a prospectively identified hospital registry of all trauma admissions. Pelvic x-rays and computerized tomography scans were reviewed and classified according to a modified classification scheme. Correlation was made with age, sex, mechanism, associated injuries, intensive care unit stay, operations, and discharge outcome. Blood product usage was obtained from a hematology database. RESULTS: A total of 124 children were identified with PPF, comprising 1.6% of trauma admissions between July 2000 and June 2008. Radiology was available for 115 children (58 boys, and 57 girls, mean age 11.5 y). According to the modified classification, 71% (82/115) had type III-A or III-B injuries (type I=5 children, type II=17 children, type IV=11 children). There was a mortality of 5% (6/115 children) during the study. Eighty-one percent (93/115) of PPF resulted from being involved in a motor vehicle accident (occupant or pedestrian). Trend testing showed relationships between increasing fracture type and length of stay (P<0.001), as well as the need for blood transfusion (P=0.009) or pelvic operation (P<0.001). A total of 34 (30%, 34/115) children required blood products. Type III-B injuries were more likely to receive blood products than type III-A injuries (odds ratio 3.58; 95% confidence interval, 1.28-10.03). CONCLUSIONS: : The modified Torode PPV classification is predictive for significant morbidity and death in the setting of multitrauma. Stable type III-B fractures are indicative of increased blood product use, intensive care unit requirement, and overall hospital stay. This modified classification scheme will aid health care providers at all levels in managing PPF more efficiently during their initial resuscitation and treatment period. LEVELS OF EVIDENCE: Level III-retrospective case control study.

Collecting core data in severely injured patients using a consensus trauma template: an international multicentre study.

INTRODUCTION: No worldwide, standardised definitions exist for documenting, reporting and comparing data from severely injured trauma patients. This study evaluated the feasibility of collecting the data variables of the international consensus-derived Utstein Trauma Template. METHODS: Trauma centres from three different continents were invited to submit Utstein Trauma Template core data during a defined period, for up to 50 consecutive trauma patients. Directly admitted patients with a New Injury Severity Score (NISS) equal to or above 16 were included. Main outcome variables were data completeness, data differences and data collection difficulty. RESULTS: Centres from Europe (n = 20), North America (n = 3) and Australia (n = 1) submitted data on 965 patients, of whom 783 were included. Median age was 41 years (interquartile range (IQR) 24 to 60), and 73.1% were male. Median NISS was 27 (IQR 20 to 38), and blunt trauma predominated (91.1%). Of the 36 Utstein variables, 13 (36%) were collected by all participating centres. Eleven (46%) centres applied definitions of the survival outcome variable that were different from those of the template. Seventeen (71%) centres used the recommended version of the Abbreviated Injury Scale (AIS). Three variables (age, gender and AIS) were documented in all patients. Completeness > 80% was achieved for 28 variables, and 20 variables were > 90% complete. CONCLUSIONS: The Utstein Template was feasible across international trauma centres for the majority of its data variables, with the exception of certain physiological and time variables. Major differences were found in the definition of survival and in AIS coding. The current results give a clear indication of the attainability of information and may serve as a stepping-stone towards creation of a European trauma registry.

Functional and health-related quality of life outcomes after pediatric trauma.

BACKGROUND: Pediatric trauma results in lower mortality than adults and a high potential for lifelong functional impairment and reduced health-related quality of life (HRQL). There is no consensus regarding the best approach to measuring outcomes in this group. METHODS: One hundred and fifty injured children admitted to a pediatric trauma center participated in this study. The Pediatric Quality of Life Inventory (PedsQL), Child Health Questionnaire (CHQ-PF28), King's Outcome Scale for Childhood Head Injury (KOSCHI), modified Glasgow Outcome Scale (mGOS), and the Functional Independence Measure (FIM) were administered at 1 month, 6 months, and 12 months after injury by telephone. Change in instrument scores was assessed using multilevel mixed effects models. Mean HRQL scores were compared with population norms for the CHQ-PF28 and with healthy children for the PedsQL. RESULTS: Follow-up at all time points was completed for 144 (96%) cases. The median injury severity score was 10, and 65% of the patients enrolled were men. At 12 months, the percentage of cases with ongoing disability was 14% for the FIM, 61% using the mGOS, and 58% for the KOSCHI. CHQ-PF28 physical and PedsQL psychosocial health scores were below healthy child norms at 12 months. Improvement across all time points was demonstrated for the KOSCHI, mGOS, CHQ-PF28 physical, and PedsQL psychosocial summary scores. CONCLUSIONS: Seriously injured children showed ongoing disability and reduced HRQL 12 months after injury. The CHQ-PF28 and PedsQL, and the mGOS and KOSCHI, performed comparably. The FIM demonstrated considerable ceiling effects, and improvement over time was not shown. The results inform the methodology of pediatric outcomes studies and protocol development for the routine follow-up of pediatric trauma patients.

The definition of major trauma using different revisions of the abbreviated injury scale.

BACKGROUND: A threshold Injury Severity Score (ISS) ≥ 16 is common in classifying major trauma (MT), although the Abbreviated Injury Scale (AIS) has been extensively revised over time. The aim of this study was to determine effects of different AIS revisions (1998, 2008 and 2015) on clinical outcome measures. METHODS: A retrospective observational cohort study including all primary admitted trauma patients was performed (in 2013-2014 AIS98 was used, in 2015-2016 AIS08, AIS08 mapped to AIS15). Different ISS thresholds for MT and their corresponding observed mortality and intensive care (ICU) admission rates were compared between AIS98, AIS08, and AIS15 with Chi-square tests and logistic regression models. RESULTS: Thirty-nine thousand three hundred seventeen patients were included. Thresholds ISS08 ≥ 11 and ISS15 ≥ 12 were similar to a threshold ISS98 ≥ 16 for in-hospital mortality (12.9, 12.9, 13.1% respectively) and ICU admission (46.7, 46.2, 46.8% respectively). AIS98 and AIS08 differed significantly for in-hospital mortality in ISS 4-8 (χ2 = 9.926, p = 0.007), ISS 9-11 (χ2 = 13.541, p = 0.001), ISS 25-40 (χ2 = 13.905, p = 0.001) and ISS 41-75 (χ2 = 7.217, p = 0.027). Mortality risks did not differ significantly between AIS08 and AIS15. CONCLUSION: ISS08 ≥ 11 and ISS15 ≥ 12 perform similarly to a threshold ISS98 ≥ 16 for in-hospital mortality and ICU admission. This confirms studies evaluating mapped datasets, and is the first to present an evaluation of implementation of AIS15 on registry datasets. Defining MT using appropriate ISS thresholds is important for quality indicators, comparing datasets and adjusting for injury severity. LEVEL OF EVIDENCE: Prognostic and epidemiological, level III.

Introduction of point-of-care ROTEM testing in the emergency department of an Australian level 1 trauma centre and its effect on blood product use.

OBJECTIVE: To assess whether the introduction of point-of-care rotational thromboelastometry (ROTEM) analysis influences blood product transfusion and coagulation management in a modern Australian level 1 trauma centre. METHODS: Retrospective blood transfusion data collection from all level 1 trauma patients with an Injury Severity Score (ISS) >12 presenting to the Royal Adelaide Hospital in 2016 and 2018. Evaluation of changes in blood product administration with the addition of point-of-care viscoelastic testing in the ED in 2018. RESULTS: A total of 774 patients were analysed with 380 in 2016 and 394 in 2018. Almost a quarter of all 2018 trauma patients (93/394) had ROTEM performed within 24 h of ED arrival, 42% of these having an ISS >25. There was a significant increase in the number of patients receiving cryoprecipitate following the introduction of ROTEM (P = 0.01). In those receiving cryoprecipitate, there was a significant reduction in subsequent platelet and fresh frozen plasma use (P < 0.001). Overall, there was a reduction in expenditure on red cells, platelets and fresh frozen plasma from 2016 to 2018. CONCLUSION: Point-of-care ROTEM was performed in a small proportion of patients, mainly those with a higher ISS. ROTEM introduction in the ED altered blood product transfusion practices for major trauma patients with an ISS >12, leading to a potentially safer transfusion strategy and cost savings for key blood products.

Changes in emergency department blood product use for major paediatric trauma following the implementation of a major haemorrhage protocol.

OBJECTIVE: Fixed ratio blood product administration may improve outcomes in trauma patients with massive blood loss. The present study aimed to describe the impact of a major haemorrhage protocol (MHP) on the ratio of blood products administered for paediatric major trauma. METHODS: Retrospective observational study in a state-designated paediatric major trauma centre in Melbourne, Australia. Children with major trauma who received blood products in the ED were identified from a hospital trauma registry. Blood product ratios before, during and after implementation of a hospital MHP were compared in consecutive 2 year blocks. RESULTS: Over a 6 year period, 767 major trauma patients were identified, of whom 47 received blood products in the ED and were included in the analysis; 14 pre-MHP implementation, 24 during-MHP implementation and nine post-MHP implementation. No patients received blood products at a ratio of 1:1:1 for red blood cells:fresh frozen plasma:platelets, respectively, during any time period. In this cohort of predominantly blunt trauma, blood products were infrequently administered in the ED because of the low prevalence of massive blood loss. Coagulopathy and hypofibrinogenaemia were commonly observed, nearly half of included patients were managed operatively and one quarter did not survive their injuries. CONCLUSION: The implementation of a MHP did not change the ratio of blood product administration in this cohort of patients because of the infrequency of massive blood loss. Future studies may focus on the impact of treating coagulopathy and hypofibrinogenaemia on patient-centred outcomes.

Agreement between parent and child report of health-related quality of life: impact of time postinjury.

BACKGROUND: Health-related quality of life (HRQL) is subjective concept and, therefore, should be captured directly from the patient. However, proxy reporting of HRQL is widespread, particularly in pediatric studies where children have been considered unreliable respondents. This study assessed the level of agreement between proxy (parent) and child reports of HRQL at key time points after injury. METHODS: Thirty-seven seriously injured children aged 13 years to 16 years participated in this study. The Pediatric Quality of Life inventory was administered to the parent and child at 1 month, 6 months, and 12 months after injury by telephone interview. Agreement between child and parent responses was compared using Bland-Altman plots, and Pediatric Quality of Life inventory physical and psychosocial summary scales were compared using paired t tests or Wilcoxon signed-rank tests, respectively. RESULTS: At 1-month (psychosocial t = -4.6, p < 0.001; physical t = -6.5 p < 0.001) and 6-month (psychosocial z = -2.5, p = 0.01; physical z = -2.6, p = 0.01) postinjury there was a significant difference between the parent and child reports, with children rating their HRQL higher than their parents. At 12-months, there was no difference between the scores reported by parents and their children (psychosocial z = -0.3, p = 0.76; physical t = -0.7, p = 0.51). CONCLUSIONS: Agreement between parent and child ratings of HRQL improved with time postinjury. The findings have implications for the design of pediatric trauma outcomes studies and the routine collection of pediatric HRQL data. Parent and child reports should be considered separate but important information, particularly in the early stages following injury. Where collection of both is not feasible, parent or child report should be chosen, and interchangeable use of parent and child reports limited.

Thoracostomy in children with severe trauma: An overview of the paediatric experience in Victoria, Australia.

OBJECTIVE: Thoracic trauma is a leading cause of paediatric trauma deaths. Traumatic cardiac arrest, tension pneumothorax and massive haemothorax are life-threatening conditions requiring emergency and definitive pleural decompression. In adults, thoracostomy is increasingly preferred over needle thoracocentesis for emergency pleural decompression. The present study reports on the early experience of thoracostomy in children, to inform debate regarding the best approach for emergency pleural compression in paediatric trauma. METHODS: Retrospective review of Ambulance Victoria and The Royal Children's Hospital Melbourne, Trauma Registry between August 2016 and February 2019 to identify children undergoing thoracostomy for trauma, either pre-hospital or in the ED. RESULTS: Fourteen children aged 1.2-15 years underwent 23 thoracostomy procedures over the 31 month period. The majority of patients sustained transport-related injuries, and underwent thoracostomies for the primary indications of hypoxia and hypotension. Two children were in traumatic cardiac arrest. Ten children underwent needle thoracocentesis prior to thoracostomy, but all required thoracostomy to achieve the necessary definitive decompression. All patients were severely injured with multiple-associated serious injuries and median Injury Severity Score 35.5 (17-75), three of whom died from their injuries. Thoracostomy in our cohort had a low complication rate. CONCLUSION: In severely injured children, thoracostomy is an effective and reliable method to achieve emergency pleural decompression, including in the young child. The technical challenges presented by children are real, but can be addressed by training to support a low complication rate. We recommend thoracostomy over needle thoracocentesis as the first-line intervention in children with traumatic cardiac arrest, tension pneumothorax and massive haemothorax. [Correction added on 23 September 2019 after first online publication: in the second sentence of the conclusion, the words "under review process" were mistakenly added and have been removed.].

Post-traumatic stress symptoms and cognition in children exposed to motor vehicle accident trauma.

Research investigating the cognition of children exposed to non-familial trauma is scarce and the effects of post-traumatic stress symptoms in this population remain unclear. Thus, this research aimed to investigate the cognition of children exposed to motor vehicle accidents given the high incidence of this trauma globally. It was hypothesized that children with post-traumatic stress symptoms (PTSS; i.e., children with subthreshold or a full diagnosis of PTSD; n = 6) would perform significantly worse on cognitive measures compared to children exposed to trauma only (TO; i.e., children with very minimal or no PTSS; n = 10) and a healthy control group (n = 19). Analyses showed children with PTSS demonstrated significantly poorer perceptual reasoning F(2,32) = 7.21, p = .01, partial η2 = .31; verbal learning F(2,32) = 3.87, p = .05, partial η2 = .20; and delayed verbal memory F(2,32) = 4.40, p = .05, partial η2 = .22, compared to HCs. The magnitude of the differences between the groups was large. Differences in immediate verbal recall, executive functioning, and verbal intellectual abilities were moderate to large in magnitude, with the PTSS group performing worse than both groups, but these findings did not reach significance. Overall findings from this study provide further support for the notion that children exposed to non-familial trauma with significant PTSS display cognitive difficulties compared to healthy children.

The Abbreviated Injury Scale is well described: A letter to the Editor re: Loftis et al., "Evolution of the Abbreviated Injury Scale: 1990-2015".

Objective: A recent study published in this journal has provided a description and summary of changes made to the Abbreviated Injury Scale (AIS) through the 5 latest versions. However, there has already been a considerable body of related research published during the past decade. Methods: A brief narrative review of recent research in this field is presented. Results: Over the past decade, considerable research has been undertaken to describe the code set differences that have arisen between different AIS versions. Much of this research has been focused on developing or evaluating mapping tools to provide continuity in how the AIS has been used to describe injury over time. In addition, severity changes and changes by body region have also been summarized for some AIS versions. Conclusions: The changes that have been successively introduced to the AIS since 1990 have been well documented, and validated strategies to enable registries to adjust for AIS change are well established. However, further research into the effects of adopting the latest (2015) AIS version is encouraged.

Simulation-based multidisciplinary team training decreases time to critical operations for trauma patients.

BACKGROUND: Simulation has been promoted as a platform for training trauma teams. However, it is not clear if this training has an impact on health service delivery and patient outcomes. This study evaluates the association between implementation of a simulation based multidisciplinary trauma team training program at a metropolitan trauma centre and subsequent patient outcomes. METHOD: This was a retrospective review of trauma registry data collected at an 850-bed Level 1 Adult Trauma Centre in Sydney, Australia. Two concurrent four-year periods, before and after implementation of a simulation based multidisciplinary trauma team training program were compared for differences in time to critical operations, Emergency Department (ED) length of stay (LOS) and patient mortality. RESULTS: There were 2389 major trauma patients admitted to the hospital during the study, 1116 in the four years preceding trauma team training (the PREgroup) and 1273 in the subsequent 4 years (the POST group). There were no differences between the groups with respect to gender, body region injured, incidence of polytrauma, and pattern of arrival to ED. The POST group was older (median age 54 versus 43 years, p < 0.001) and had a higher incidence of falls and assaults (p < 0.001). There was a reduction in time to critical operation, from 2.63 h (IQR 1.23-5.12) in the PRE-group to 0.55 h (IQR 0.22-1.27) in the POST-group, p < 0.001. The overall ED LOS increased, and there was no reduction in mortality. Post-hoc analysis found LOS in ED was reduced in the cohort requiring critical operations, p < 0.001. CONCLUSION: The implementation of trauma team training was associated with a reduction in time to critical operation while overall ED length of stay increased. Simulation is promoted as a platform for training teams; but the complexity of trauma care challenges efforts to demonstrate direct links between multidisciplinary team training and improved outcomes. There remain considerable gaps in knowledge as to how team training impacts health service delivery and patient outcomes. LEVEL OF EVIDENCE: Retrospective comparative therapeutic/care management study, Level III evidence.

Horse-related injuries in children - unmounted injuries are more severe: A retrospective review.

INTRODUCTION: Horse-related injuries account for one quarter of all paediatric sports fatalities. It is not known whether the pattern of injury spectrum and severity differ between children injured whilst mounted, compared with those injured unmounted around horses. We aimed to identify any distinctions between the demographic features, spectrum and severity of injuries for mounted versus unmounted patients. PATIENTS AND METHODS: Trauma registry data were reviewed for 505 consecutive paediatric patients (aged<16years) admitted to a large paediatric trauma centre with horse-related injuries over a 16-year period. Patients were classified into mounted and unmounted groups, and demographics, injury spectrum, injury severity, and helmet usage compared using odds ratios and Wilcoxon rank-sum tests. RESULTS: More patients (56%) were injured in a private setting than in a sporting or supervised context (23%). Overall, head injuries were the most common horse-related injury. Mounted patients comprised 77% of the cohort. Mounted patients were more likely to sustain upper limb fractures or spinal injuries, and more likely to wear helmets. Unmounted were more likely to be younger males, and more likely to sustain facial or abdominal injuries. Strikingly, unmounted children had significantly more severe and critical Injury Severity Scores (OR 2.6; 95% CI 1.5, 4.6) and longer hospital stay (2.0days vs 1.1days; p<0.001). Unmounted patients were twice as likely to require intensive care or surgery, and eight times more likely to sustain a severe head injury. CONCLUSIONS: Horse-related injuries in children are serious. Unmounted patients are distinct from mounted patients in terms of gender, age, likelihood of personal protective equipment use, severity of injuries, and requirement for intensive or invasive care. This study highlights the importance of vigilance and other safety behaviours when unmounted and around horses, and proposes specific targets for future injury prevention campaigns, both in setting of organised and private equestrian activity.

A review of the revised Functional Capacity Index as a predictor of 12 month outcomes following injury.

The measurement of functional outcomes following severe trauma has been widely recognised as a priority for countries with developed trauma systems. In this respect, the Functional Capacity Index (FCI), a multi-attribute index which has been incorporated into the most recent Abbreviated Injury Scale (AIS) dictionary, is potentially attractive as it offers 12-month functional outcome predictions for patients captured by existing AIS-coded datasets. This review paper outlines the development, construction and validation of the predictive form of the FCI (termed the pFCI), the modifications made which produced the currently available 'revised' pFCI, and the extent to which the revised pFCI has been validated and used. The original pFCI performed poorly in validation studies. The revised pFCI does not address many of the identified limitations of the original version, and despite the ready availability of a truncated version in the AIS dictionary, it has only been used in a handful of studies since its introduction several years ago. Additionally, there is little evidence for its validity. It is suggested that the pFCI should be better validated, whether in the narrow population group of young, healthy individuals for which it was developed, or in the wider population of severely injured patients. Methods for accounting for the presence of multiple injures (of which two have currently been used) should also be evaluated. Many factors other than anatomical injury are known to affect functional outcomes following trauma. However, it is intuitive that any model which attempts to predict the ongoing morbidity burden in a trauma population should consider the effects of the injuries sustained. Although the revised pFCI potentially offers a low-cost assessment of likely functional limitations resulting from anatomical injury, it must be more rigorously evaluated before more comprehensive predictive tools can be developed from it.

The spectrum of pediatric injuries sustained in snow sports.

BACKGROUND: Snow sports are popular among children but carry the potential for significant injury. Head injuries are less common than fractures and sprains but may be fatal. Helmets are recommended for all snow sports, and yet their effectiveness remains unknown. We aimed to evaluate the spectrum of injuries sustained at three large alpine resorts and to assess the effect of helmet usage on injury severity. METHODS: We performed a retrospective analysis of prospectively collected pediatric trauma data (2005-2015) from the three largest alpine resorts in our state. Data were analyzed using Spearman's correlation, chi-square, and odds ratio. RESULTS: A total of 6299 incidents were reviewed. Skiers accounted for 3821 (60.7%) patients, while snowboarders accounted for 2422 (38.5%) patients. More than half (53.5%) of the injuries were related to falls, predominantly affecting knees in skiers and wrists in snowboarders. Overall, helmet usage decreased with age (p<0.001), though helmet uptake was positively associated with higher level of ability in both skiers and snowboarders (p<0.001). Concussions in both skiers and snowboarders were inversely correlated with the rates of helmet usage (p<0.05). CONCLUSION: Helmet usage was associated with reduced rates of concussion. However, helmet usage decreased with age. We advocate for promotion of helmet usage, using mandatory guidelines, across all pediatric age groups. LEVEL OF EVIDENCE: Level II - Retrospective study.