Consultative Committee on Road Traffic Fatalities: trauma audit methodology

BACKGROUND: Since 1992 the Consultative Committee on Road Traffic Fatalities in Victoria has identified deficiencies and errors in the management of 559 road traffic fatalities in which the patients were alive on arrival of ambulance services. The Committee also assessed the preventability of deaths. Reproducibility of results using its methodology has been shown to be statistically significant. The Committee's findings and recommendations, the latter made in association with the learned Colleges and specialist Societies, led to the establishment of a Ministerial Taskforce on Trauma and Emergency Services. As a consequence, in 2000, a new trauma care system will be implemented in Victoria. This paper presents a case example demonstrating the Committee's methodology. METHODS: The Committee has two 12 member multidisciplinary evaluative panels. A retrospective evaluation was made of the complete ambulance, hospital and autopsy records of eligible fatalities. The clinical and pathological findings were analysed using a comprehensive data proforma, a narrative summary and the complete records. Resulting multidisciplinary discussion problems were identified and the potential preventability of death was assessed. RESULTS: In the present case example the Committee identified 16 management deficiencies of which 11 were assessed as having contributed to the patient's death; the death, however, was judged to be non-preventable. CONCLUSION: The presentation of this example demonstrating the Committee's methodology may be of assistance to hospital medical staff undertaking their own major trauma audit.     

Trauma Management in Australia and the Tyranny of Distance

Major trauma presents a time-critical medical emergency. Successful and expeditious management with early definitive treatment is required to prevent secondary injury. The resources in the prehospital setting, at the hospital of first treatment, and at the tertiary referral (major trauma) center all have an impact on the ability of an integrated trauma system to deliver optimal care to a patient. The time between leaving the injury site and instituting definitive care does not always equate with distance. Retrieval resources must be allocated carefully. Potentially preventable morbidity and mortality has been identified and is specifically related to the time between injury and definitive care and the efficiency of the retrieval and hospital transfer processes. These problems are being addressed with a further sophistication of integrated trauma systems. Regional trauma committees, unified and sophisticated ambulance services, good communication lines, adequate resources at major trauma services, and well developed surgical services are all essential for the appropriate and expeditious management of major trauma patients injured at a distance from tertiary referral (major trauma) centers.     

Prehospital triage,discrepancy in priority-setting between emergency medical dispatch centre and ambulance crews

Background  

The timely provision of emergency medical services might be influenced by discrepancies in triage-setting between emergency medical dispatch centre and ambulance crews (ACR) on the scene resulting in overloaded emergency departments (ED) and ambulance activities. The aim of this study was to identify such discrepancies by reviewing ambulance transports within a metropolitan city in the western region of Sweden.     

Transfer of pediatric trauma patients to a tertiary pediatric trauma centre: appropriateness and timeliness

OBJECTIVE: To study the appropriateness of, and time taken, to transfer pediatric trauma patients in New South Wales to The Children's Hospital at Westmead (CHW), a pediatric trauma center. METHODS: All trauma patients transferred to CHW from June 2003 to July 2004 were included in the study. Indications and time periods relevant to the transfer of the patient from the referring institute were retrieved and analyzed. Pediatric and adult retrieval services were compared. RESULTS: Three hundred ninety-eight patients were transferred to CHW, of whom 332 were from the metropolitan region. Falls and burns were the commonest mechanism of injury. Burn was the commonest indication for transfer (107 of 398). Mean Injury Severity Score was eight. Nearly half the patients had minor injuries (Injury Severity Score<9). Patients spent an average of 5 hours at the referring hospital. Pediatric retrieval ambulances had significantly longer mean transfer times than did nonpediatric ambulance services with a total time spent of about 2.64 hours versus 1.30 hours, respectively. For aeromedical transfers, on the other hand, the difference between pediatric retrieval services and nonpediatric air ambulances was not significant. CONCLUSIONS: The majority of the patients transferred had minor injuries. Pediatric trauma patients spend considerable time in their referring hospitals. Pediatric retrieval services appear to take significantly longer to transfer patients than nonpediatric ambulance transfers even after allowing for patient age and injury severity. Although this did not result in mortality or morbidity, there appears to be considerable scope for a reduction in transfer times through better coordination of these services.     

Road traffic fatalities in Victoria, Australia and changes to the trauma care system

BACKGROUND: The aim was to identify organizational and clinical errors in the management of road traffic fatalities and to use this information to improve Victoria's trauma care system. METHODS: A multidisciplinary committee evaluated the complete ambulance, hospital and autopsy records of 559 consecutive road traffic fatalities, who were alive on arrival of ambulance services, in five substantial time periods between 1992 and 1998. Patients who survived more than 30 days were excluded. Errors or inadequacies in each phase of management, including those contributing to death, were identified and an assessment was made of the potential preventability of death. RESULTS: Findings between 1992 and 1998 were similar. In 1998, 1672 problems were identified in 110 deaths with 1024 (61 per cent) contributing to death. Eight hundred and forty-two (50 per cent) of the total problems occurred in the emergency department. There were frequent problems in initial patient reception and medical consultation, resuscitation, investigation and assessment (especially of the abdomen and head), and in transfer to the operating theatre or to a higher-level hospital. Victoria's combined preventable and potentially preventable death rate has been unchanged between 1992 and 1998 (34-38 per cent). CONCLUSION: The problems identified led to a Ministerial Taskforce on Trauma and Emergency Services in Victoria as a consequence of which a new trauma system is now being implemented.     

REGIONALEATION OF TRAUMA SERVICES IN WESTERN SYDNEY: PREDICTED EFFECT ON AMBULANCE AND HOSPITAL UTILIZATION RATES

A previous study has demonstrated the effectiveness of ambulance staff in identifying the majority of trauma victims who warrant admission to a Level 3 Hospital.¹ This paper applies the results of that study in order to estimate the likely effect of a system of bypass whereby these identified patients are transported to a Level 3 hospital rather than the nearest Level 1 DT 2 Hospital. Under the proposed plan whereby both Westmead and Liverpool Hospitals would be granted Level 3 status, the effect on Westmead would be negligible. However, Liverpool's caseload would increase (25% for total admissions, 136% for serious admissions) and, consequently, its level of resources would need to be upgraded before this plan can be put into action. Meanwhile, Level 1 and 2 hospitals would see little change to total patient admissions, although there would be a substantial drop in serious admissions (-63%). Under the proposed system, the effects on the Ambulance Service would also be negligible in terms of both the number of transports and total transport hours. However, the nature of these transports would change. More time would be required in bypass cases, although this would be compensated for by a corresponding fall off in interhospital transfers (28% decline in time spent on transfers). Ultimately, this means that patients would be getting to the hospital of definitive care much sooner. These results have implications for the development of trauma services in other sectors.     

Evaluation of the New South Wales ambulance T1 major trauma transport protocol: A state-wide data linkage study

IntroductionPrehospital triage and transport protocols are critical components of the trauma systems. Still, there have been limited studies evaluating the performance of trauma protocols in New South Wales, such as the NSW ambulance major Trauma transport protocol (T1).ObjectivesDetermine the performance of a major trauma transport protocol in a cohort of ambulance road transportsMethodsA data-linkage study using routine ambulance and hospital datasets across New South Wales Australia. Adult patients (age > 16 years) where any trauma protocol was indicated by paramedic crews and transported to any emergency department in the state were included. Major injury outcome was defined as an Injury Severity Score >8 based on coded in-patient diagnoses, or admission to intensive care unit or death within 30 days due to injury. Multivariable logistic regression was used to determine ambulance predictors of major injury outcome.ResultsThere were 168,452 linked ambulance transports analysed. Of the 9,012 T1 protocol activations, 2,443 cases had major injury [positive predictive value (PPV) = 27.1%]. There were 16,823 major injuries in total giving a sensitivity of the T1 protocol of 2,443/16,823 (14.5%), specificity of 145,060/151,629 (95.7%) and a negative predictive value (NPV) of 145,060/159,440 (91%). Overtriage rate associated with T1 protocol was 5,697/9,012 (63.2%) and undertriage rate was 5,509/159,440 (3.5%). The most important predictor of major injury was the activation of more than one trauma protocol by ambulance paramedics.DiscussionOverall, the T1 was associated with low undertriage and high specificity. The protocol may be improved by considering age and the number of trauma protocols activated by paramedics for any given patient.     

Prehospital airway management in Ambulance Services in the United Kingdom

A postal survey of the 38 Ambulance Services in the United Kingdom was undertaken to find out what equipment is provided for paramedic crews to aid tracheal intubation and to confirm tracheal placement. The response rate to our survey was 100%. Fourteen (37%) ambulance services provided neither stylet nor bougie to facilitate difficult intubation. The laryngeal mask airway was available to 15 (40%) ambulance services. Seventeen (45%) ambulance services had use of a needle cricothyroidotomy set. Twenty-nine (76%) ambulance services had no type of device other than a stethoscope to confirm tracheal tube placement. This survey showed wide variations in the equipment for airway management available to paramedic crews in the United Kingdom. We recommend provision of a standard set of airway management equipment to all paramedic crews in the United Kingdom together with introduction of appropriate training programmes.     

The trauma registry as a statewide quality improvement tool

BACKGROUND: Trauma registries have been developed to describe the pattern of trauma and trauma workload, provide data for research, and to demonstrate changes in patient outcomes. Quality improvement using trauma registries at a system-wide level has been difficult to achieve. In Victoria, Australia, a statewide trauma system and trauma registry has been established to monitor and feedback the process of management and outcomes of major trauma patients across all healthcare providers. METHODS: The development and implementation of the Victorian State Trauma Registry (VSTR), including its role as a quality monitoring tool and results from the first 2 years of operation, are provided. RESULTS: More than 80% of major trauma patients are being managed at major trauma services and standardized death rates are comparable with international standards. Quality indicators identify some areas for improvement. CONCLUSION: VSTR data indicate that the statewide trauma system is working well and provides a method for ongoing monitoring and trauma care feedback.     

Trauma triage in western Sydney: results of a pilot study

A pilot study of the effectiveness of prehospital triage of trauma patients was carried out in a western Sydney between February and July 1988. Triage guidelines were developed to identify seriously injured persons at the incident site who might warrant admission to a Level 3 Trauma Service Hospital (Trauma Centre), as part of the NSW Department of Health trauma services plan. The study results were based on 64% of ambulance trauma transports for which a triage decision was provided. Of trauma transports studied, 3.7% had injuries serious enough to warrant admission to Level 3 Trauma Service Hospital. Ambulance officers correctly triaged 77% of these cases in the field. However, 62% of trauma transports triaged 'severe' or 'critical' did not have injuries serious enough to warrant admission to a Level 3 Trauma Service Hospital. Nevertheless, the triage guidelines compared favourably with similar instruments used elsewhere. Based on the performance of the triage guidelines it was concluded that the introduction of a regionalized trauma service in metropolitan NSW with local bypass is possible.     

Reducing time to urgent surgery by transporting resources to the trauma patient

BACKGROUND: Time to definitive trauma care directly influences patient survival. Patient transport (retrieval) services are essential for the transportation of remotely located trauma patients to a major trauma centre. Trauma surgical expertise can potentially be combined with the usual retrieval response (surgically supported response) and delivered to the patient before patient transportation. We identified the frequency and circumstances of such surgically supported retrievals. METHODS: Retrospective review of trauma patients transported by the NRMA CareFlight, New South Wales Medical Retrieval Service, Australia, from 1999 to 2003, identifying patients who had a surgically supported retrieval response and an urgent surgical procedure carried out before patient transportation to an major trauma centre. RESULTS: Seven hundred and forty-nine trauma interhospital patient transfers were identified of which 511 (68%) were categorized as urgent and 64% of which were rural based. Three (0.4%) patients had a surgically supported retrieval response and had an urgent surgical procedure carried out before patient transportation. All patients benefited from that early surgical intervention. CONCLUSION: A surgically supported retrieval response allows for the more timely delivery of urgent surgical care. Patients can potentially benefit from such a response. There are, however, important operational considerations in providing a surgically supported retrieval response.     

Regionalization of trauma services in western Sydney: predicted effect on ambulance and hospital utilization rates

A previous study has demonstrated the effectiveness of ambulance staff in identifying the majority of trauma victims who warrant admission to a Level 3 Hospital. This paper applied the results of that study in order to estimate the likely effect of a system of bypass whereby these identified patients are transported to a Level 3 hospital rather than the nearest Level 1 or 2 Hospital. Under the proposed plan whereby both Westmead and Liverpool Hospitals would be granted Level 3 status, the effect of Westmead would be negligible. However, Liverpool's caseload would increase (25% for total admissions, 136% for serious admissions) and, consequently, its level of resources would need to be upgraded before this plan can be put into action. Meanwhile, Level 1 and 2 hospitals would see little change to total patient admissions, although there would be a substantial drop in serious admissions (-63%). Under the proposed system, the effects on the Ambulance Service would also be negligible in terms of both the number of transports and total transport hours. However, the nature of these transports would change. More time would be required in bypass cases, although this would be compensated for by a corresponding fall off in interhospital transfers (28% decline in time spent on transfers). Ultimately, this means that patients would be getting to the hospital of definitive care much sooner. These results have implications for the development of trauma services in other sectors.     

Developing Australia's first statewide trauma registry: what are the lessons?

Trauma registries, like disease registries, provide an important analysis tool to assess the management of patient care. Trauma registries are well established and relatively common in the USA and have been used to change legislation, promote trauma prevention and to evaluate trauma system effectiveness. In Australia, the first truly statewide trauma registry was established in Victoria in 2001 with an estimated capture of 1700 major trauma cases annually. The Victorian State Trauma Registry, managed by the Victorian State Trauma Outcomes Registry and Monitoring (VSTORM) group, was established in response to a ministerial review of trauma and emergency services undertaken in 1997 to advise the Victorian Government on a best practice model of trauma service provision that was responsive to the particular needs of critically ill trauma patients. This taskforce recommended the establishment of a new system of care for major trauma patients in Victoria and a statewide trauma registry to monitor this new system. The development of the Victorian state trauma registry has shown that there are certain issues that must be resolved for successful implementation of any system-wide registry. This paper describes the issues faced by VSTORM in developing, implementing and maintaining a statewide trauma registry.     

Is mechanism of injury alone a useful predictor of major trauma?

INTRODUCTION: The Review of Trauma and Emergency Services in Victoria -1999 left unresolved the predictive value of mechanism of injury in pre-hospital trauma triage guidelines. Ethics approval was granted. The objective of this study is to determine if mechanism of injury alone is a useful predictor of major trauma in pre-hospital trauma triage. METHODS: A retrospective cohort study was undertaken of all Victorian ambulance trauma Patient Care Records (PCRs) for 2002. PCRs where patients were physiologically stable, had no significant pattern of injury, but had a significant mechanism of injury were identified and compared with the State Trauma Registry to determine those patients who sustained hospital defined major trauma. RESULTS: There were 4571 incidents of mechanism of injury only, of which 62% were males, median age was 28 years. Two criteria had statistically significant results. A fall from greater than 5m (n=52) of whom 5 (RR 10.86, CI 4.47 to 26.42, P<0.0001) sustained major trauma and a patient trapped greater than 30min (n=36) of whom 3 (RR 9.0, CI 2.92 to 27.70, P=0003) sustained major trauma. The overall results are not clinically significant. CONCLUSION: This study suggests that individual mechanism of injury criteria have no clinical or operational significance in pre-hospital trauma triage of patients who have an absence of physiological distress and no significant pattern of injury. These results add to the knowledge base of trauma presentation in the pre-hospital setting, especially in Australia, and are the baseline for further studies.     

Inclusion of ‘minor’ trauma cases provides a better estimate of the total burden of injury: Queensland Trauma Registry provides a unique perspective

Introduction

Injury is recognised as a frequent cause of preventable mortality and morbidity; however, incidence estimates focusing only on the extent of mortality and major trauma may seriously underestimate the magnitude of the total injury burden. There currently exists a paucity of information regarding minor trauma, and the aim of this study was to increase awareness of the contribution of minor trauma cases to the total burden of injury.

Methods

The demographics, injury details, acute care factors and outcomes of both minor trauma cases and major trauma cases were evaluated using data from the state-wide trauma registry in Queensland, Australia, from 2005 to 2010. The impact of changes in Abbreviated Injury Scale (AIS) versions on the classification of minor and major injury cases was also assessed.

Results

Over the 6-year period, minor cases [Injury Severity Score (ISS) ≤ 12] accounted for almost 90% of all trauma included on the Queensland Trauma Registry (QTR). These cases utilised more than half a million acute care bed days, underwent more than 66,500 operations, and accounted for more than 48,000 patient transport episodes via road ambulance, fixed wing aircraft, or helicopter. Furthermore, more than 5800 minor trauma cases utilised in-hospital rehabilitation services; almost 3000 were admitted to an ICU; and more than 20,000 were admitted to hospital for greater than one week. When using the contemporary criteria for classifying trauma (AIS 08), the proportion of cases classified as minor trauma (87.7%) and major trauma (12.3%) were similar to the proportion using the traditional criteria for AIS90 (87.9% and 12.1%, respectively).

Conclusions

This evaluation of minor trauma cases admitted to public hospitals in Queensland detected high levels of demand placed on trauma system resources in terms of acute care bed days, operations, ICU admissions, in-hospital rehabilitation services and patient transportation, and which are all associated with high cost. These data convincingly demonstrate the significant burden of injury imposed by minor trauma cases serious enough to be admitted to hospital.     

Reduction of time to definitive care in trauma patients: effectiveness of a new checklist system

This study evaluated the feasibility of establishing a new trauma transfer checklist and assessed its impact on trauma-related interhospital transfers. A standard envelope with a printed checklist (N.E.W.S.) incorporating four key concepts in the care and transfer of trauma patients was used. A prospective comparison of consecutive interhospital trauma transfers to the major trauma service between July 1999-May 2000 (pre-N.E.W.S.) and August 2000-November 2000 (post-N.E.W.S.) was made. Changes in management satisfaction were assessed by a Likert scale (1=poor to 5=excellent). Pre-N.E.W.S., 88 trauma patients were transferred and 20 trauma transfers were recorded post-N.E.W.S. The time to definitive care pre-N.E.W.S. was 443+/-322 min, and 339+/-108 min (P=0.014) post-N.E.W.S. The time in the referring hospital was also reduced from 343+/-310 min pre-N.E.W.S. to 197+/-90 min post-N.E.W.S (P=0.0002). The checklist system prompted changes in the management of the trauma patient in 20% of the cases and there was a high level of satisfaction expressed by users of the checklist (4.6+/-0.7). The N.E.W.S. checklist is effective in facilitating the interhospital transfer of trauma patients by shortening the time to definitive care.     

HELICOPTER EMERGENCY MEDICAL SERVICES: THEIR ROLE IN INTEGRATED TRAUMA CARE

The role of helicopters in trauma management must be considered in the context of the provision of sophisticated, high-quality trauma care. The present review examines the evolution of systems of trauma care, the value of advanced life support (ALS), and the role of the Helicopter Emergency Medical Service (HEMS) in improving outcomes. Comparison is made of outcomes of patients managed by HEMS and road ambulances, and important aspects of HEMS including staffing and safety are discussed. There is a role for HEMS as part of a modern trauma system, in particular in bringing ALS skills and access to expert medical care to the rural accident scene or hospital at distances of up to 160 km. It is of greatest value when it is integrated into a well-organized ambulance service and emergency system with good triage and close medical supervision.     

The evolution of an integrated State Trauma System in Victoria, Australia

The incidence of major trauma and associated fatalities in the State of Victoria, Australia, have declined over 20 years following the successful implementation of strategies to modify environmental and behavioural factors that contribute to motor vehicle injuries. However, several system deficiencies in the management of major trauma patients had remained unresolved. To investigate these shortfalls the State Government of Victoria established a task force in 1997 to review trauma and emergency services. The task force adopted the principle of "the right patient to the right hospital in the shortest time" and in 2000 began to deploy an integrated State Trauma System. Implementation of such a system required the designation of specific hospitals of various levels to care for trauma patients; the concentration of trauma expertise at these centres; integration and coordination between the service providers; development of agreed triage and transfer protocols and improved education, training and research programs. A statewide major trauma database was established to enable system monitoring and facilitate further enhancements. The Victorian experience with the development of an integrated trauma system should aid in the development of similar systems nationally and internationally and is described in this paper.     

An evaluation of compliance with practice guidelines on interhospital trauma transfer

STUDY OBJECTIVES: To prospectively evaluate compliance with current interhospital trauma transfer guidelines in South West Sydney, before and after an implementation programme was instituted. METHODS: A scoring system was developed to assess compliance with the 11 main components of the guideline. Baseline compliance was measured during an initial 3-month period (pre), followed by an implementation programme to alert staff at referring hospitals to the presence of the guidelines. Following this, compliance was again measured over 3 months (post). RESULTS: Twenty-two patients were transferred during the pre-implementation phase and 35 patients during the post-phase. Overall compliance with the guidelines increased from 62 to 67%. Mean pre-hospital compliance rose from 75 to 95%, and referring hospital compliance rose from 59 to 63%. While there was an improvement in compliance with the use of the dedicated trauma hotline (86-97%), the use of a transfer checklist (41-53%), and appropriateness of transfer (95-100%), none of these reached statistical significance. CONCLUSION: Practice guidelines have been developed to optimise the process of interhospital trauma transfers. An implementation programme met with limited success in improving compliance with the guidelines. Further work is needed to ensure awareness of these guidelines, with ongoing monitoring to ensure best practice and optimal patient outcome.     

Regional variation in travel to health services following transport-related major trauma

IntroductionPost-discharge healthcare needs are complex and persistent for people following major trauma. A number of geographic barriers to accessing healthcare exist, particularly for people in regional areas. The aim of this study was to explore regional variation in the distances travelled to access health services and identify patterns of health service use in the first three years following transport-related major trauma.MethodsThis registry-based cohort study used linked data from the Victorian State Trauma Registry (VSTR) and the Transport Accident Commission (TAC). Victorians who sustained major trauma from a transport-related event between January 1 2006 and December 31 2016, with at least three years of follow-up TAC claims data were included in the study. Geospatial mapping of the median distance travelled to medical and allied health services was conducted for each Victorian Local Government Area.ResultsIn the first three years post-discharge, 4,964 people (75.6%) visited a general practitioner, 5058 (77.0%) saw other medical professionals, 2269 (34.6%) accessed mental health services, 2154 (32.8%) saw an occupational therapist and 4404 (67.0%) attended a physical therapy service. Geospatial mapping revealed that people in regional Local Government Area travelled further distances to access health services. Specific clustering of increased travel distances was observed in regional areas of the far west and north-east of Victoria. The number of people using services declined with each subsequent year beyond hospital discharge. However, the number of trips were consistent over time for those still engaged in services.ConclusionsDistances travelled to access health services vary across geographic regions and may result in an increased travel burden for those in some regional Local Government Area. Understanding gaps in health services by geographic region can assist to improve service availability. Alternate service delivery methods, such as telehealth, may assist to reduce the associated burden of travel for those in regional areas.