Effectiveness of state trauma systems in reducing injury-related mortality: a national evaluation

Emerging technologies for pediatric and adult trauma care

PURPOSE OF REVIEW

Current Emergency Medical Service protocols rely on provider-directed care for evaluation, management and triage of injured patients from the field to a trauma center. New methods to quickly diagnose, support and coordinate the movement of trauma patients from the field to the most appropriate trauma center are in development. These methods will enhance trauma care and promote trauma system development.

RECENT FINDINGS

Recent advances in machine learning, statistical methods, device integration and wireless communication are giving rise to new methods for vital sign data analysis and a new generation of transport monitors. These monitors will collect and synchronize exponentially growing amounts of vital sign data with electronic patient care information. The application of advanced statistical methods to these complex clinical data sets has the potential to reveal many important physiological relationships and treatment effects.

SUMMARY

Several emerging technologies are converging to yield a new generation of smart sensors and tightly integrated transport monitors. These technologies will assist prehospital providers in quickly identifying and triaging the most severely injured children and adults to the most appropriate trauma centers. They will enable the development of real-time clinical support systems of increasing complexity, able to provide timelier, more cost-effective, autonomous care.

Regional Systems of Care for Out-of-Hospital Cardiac Arrest

Out-of-hospital cardiac arrest continues to be an important public health problem, with large and important regional variations in outcomes. Survival rates vary widely among patients treated with out-of-hospital cardiac arrest by emergency medical services and among patients transported to the hospital after return of spontaneous circulation. Most regions lack a well-coordinated approach to post–cardiac arrest care. Effective hospital-based interventions for out-of-hospital cardiac arrest exist but are used infrequently. Barriers to implementation of these interventions include lack of knowledge, experience, personnel, resources, and infrastructure. A well-defined relationship between an increased volume of patients or procedures and better outcomes among individual providers and hospitals has been observed for several other clinical disorders. Regional systems of care have improved provider experience and patient outcomes for those with ST-elevation myocardial infarction and life-threatening traumatic injury. This statement describes the rationale for regional systems of care for patients resuscitated from cardiac arrest and the preliminary recommended elements of such systems. Many more people could potentially survive out-of-hospital cardiac arrest if regional systems of cardiac resuscitation were established. A national process is necessary to develop and implement evidence-based guidelines for such systems that must include standards for the categorization, verification, and designation of components of such systems. The time to do so is now.

Triage and mortality in 2875 consecutive trauma patients

BACKGROUND

Most studies on trauma and trauma systems have been conducted in the United States. We aimed to describe the factors predicting mortality in European trauma patients, with focus on triage.

METHODS

We prospectively registered all trauma patients in Eastern Denmark over 12 consecutive months. We analysed the flow of trauma patients through the system, the time spent at different locations, and we assessed the risk factors of mortality.

RESULTS

We included 2875 trauma patients, of whom 158 (5.5%) died before arrival at the hospital. Most patients (75.3%) were brought to local hospitals and patients primarily (n=82) or secondarily triaged (n=203) to the level I trauma centre were the most severely injured. Secondarily transferred patients spent a median of 150 min in the local hospital before transfer to the level I trauma centre and 48 min on transportation. Severe injury with an injury severity score >15 was seen in 345 patients, of whom 118 stayed at the local hospital. They had a significantly higher mortality than 116 of those secondarily transferred [45/118, 38.1% vs. 11/116, 9.7% (P<0.0001)]. Mortality within 30 days was 4.3% in admitted patients, and significant risk factors of death were violence [odds ratio (OR)=5.72], unconsciousness (OR=4.87), hypotension (OR=4.96), injury severity score >15 (OR=27.42), and age.

CONCLUSIONS

Around 50% of all trauma deaths occurred at the scene. Increased survival of severely injured patients may be achieved by early transfer to highly specialised care.

Disparities in trauma center access despite increasing utilization: data from California, 1999 to 2006

BACKGROUND

Although efforts have been made to address disparities in access to trauma care in the past decade, there is little evidence to show if utilization has changed. We use patient-level data to describe the changes in utilization of trauma centers (TCs) in an 8-year period in California.

METHODS

We analyzed all statewide trauma admissions (n = 752,706) using the California Office of Statewide Health Planning and Discharge Patient Discharge Database from the period of 1999 to 2006, and determined the trends in admissions and place of care.

RESULTS

The proportion of severe injuries admitted increased by 3.6% (p < 0.05), with a concomitant rise in the proportion of patients with trauma to TCs, from 39.3% (95% CI: 39.0%-39.7%) to 49.7% (49.4%-50.0%). Within the severely injured with injury severity scores (ISS) >15, 82.4% were treated in a TC if they resided in a county with a TC, compared with 30.8% of patients who did not live in a county with a TC. After adjustment, patients living greater than 50 miles away from a TC still had a likelihood ratio of 0.11 (p < 0.0001) of receiving care in a TC compared with those less than 10 miles away. Similarly, even severely injured patients not living in a county with a TC had a likelihood ratio of 0.35 (p < 0.0001) of being admitted to a TC compared with those residing in counties with TCs.

CONCLUSION

Admissions to TCs for all categories of injury severity are increasing. There remains, however, a large disparity in TC care depending on geographical distance and availability of a TC within county.

Impact of joint theater trauma system initiatives on battlefield injury outcomes

INTRODUCTION

The US military forces developed and implemented the Joint Theater Trauma System (JTTS) and Joint Theater Trauma Registry (JTTR) using US civilian trauma system models with the intent of improving outcomes after battlefield injury.

METHODS

The purpose of this analysis was to elaborate the impact of the JTTS. To quantify these achievements, the JTTR captured mechanism, acute physiology, diagnostic, therapeutic, and outcome data on 23,250 injured patients admitted to deployed US military treatment facilities from July 2003 through July 2008 for analysis. Comparative analysis to civilian trauma systems was done using the National Trauma Data Bank (NTDB).

RESULTS

In contrast to civilian trauma systems with an 11.1% rate of penetrating injury, 68.3% of battlefield wounds were by penetrating mechanism. In the analyzed cohort, 23.3% of all patients had an Injury Severe Score (ISS) > or = 16, which is similar to the civilian rate of 22.4%. In the military injury population, 66% of injuries were combat-related. In addition, in the military injury group, 21.8% had metabolic evidence of shock with a base deficit > or = 5, 29.8% of patients required blood transfusion, and 6.4% of the total population of combat casualties required massive transfusion (>10 U red blood cells/24 hours). With this complex and severely injured population of battlefield injuries, the JTTS elements were used to recognize and remedy more than 60 trauma system issues requiring leadership and advocacy, education, research, and alterations in clinical care. Of particular importance to the trauma system was the implementation and tracking of performance improvement indicators and the dissemination of 27 evidence-based clinical practice guidelines (CPGs). In particular, the damage control resuscitation guideline was associated with a decrease in mortality in the massively transfused from 32% pre-CPG to 21% post-CPG. As evidence of the effectiveness of the JTTS, a mortality rate of 5.2% after battlefield hospital admission is comparable to a case fatality rate of 4.3% reported in an age-matched cohort from the NTDB.

CONCLUSIONS

JTTS initiatives contributed to improved survival after battlefield injury. The JTTS has set the standard of trauma care for the modern battlefield using contemporary systems-based methodologies.

Complication rates among trauma centers

BACKGROUND

The goal of this study was to examine the association between patient complications and admission to Level I trauma centers (TC) compared with nontrauma centers (NTC).

STUDY DESIGN

This was a retrospective cohort study of data derived from the National Study on the Costs and Outcomes of Trauma (NSCOT). Patients were recruited from 18 Level I TCs and 51 NTCs in 15 regions encompassing 14 states. Trained study nurses, using standardized forms, abstracted the medical records of the patients. The overall number of complications per patient was identified, as was the presence or absence of 13 specific complications.

RESULTS

Patients treated in TCs were more likely to have any complication compared with patients in NTCs, with an adjusted relative risk (RR) of 1.34 (95% CI, 1.03, 1.74). For individual complications, only the urinary tract infection RR of 1.94 (95% CI, 1.07, 3.17) was significantly higher in TCs. TC patients were more likely to have 3 or more complications (RR, 1.83; 95% CI, 1.16, 2.90). Treatment variables that are surrogates for markers of injury severity, such as use of pulmonary artery catheters, multiple operations, massive transfusions (> 2,500 mL packed red blood cells), and invasive brain catheters, occurred significantly more often in TCs.

CONCLUSIONS

Trauma centers have a slightly higher incidence rate of complications, even after adjusting for patient case mix. Aggressive treatment may account for a significant portion of TC-associated complications. Pulmonary artery catheter use and intubation had the most influence on overall TC complication rates. Additional study is needed to provide accurate benchmark measures of complication rates and to determine their causes.

Audit filters for improving processes of care and clinical outcomes in trauma systems

BACKGROUND

Traumatic injuries represent a considerable public health burden with significant personal and societal costs. The care of the severely injured patient in a trauma system progresses along a continuum that includes numerous interventions being provided by a multidisciplinary group of healthcare personnel. Despite the recent emphasis on quality of care in medicine, there has been little research to direct trauma clinicians and administrators on how optimally to monitor and improve upon the quality of care delivered within a trauma system. Audit filters are one mechanism for improving quality of care and are defined as specific clinical processes or outcomes of care that, when they occur, represent unfavorable deviations from an established norm and which prompt review and feedback. Although audit filters are widely utilized for performance improvement in trauma systems they have not been subjected to systematic review of their effectiveness.

OBJECTIVES

To determine the effectiveness of using audit filters for improving processes of care and clinical outcomes in trauma systems.

SEARCH STRATEGY

Our search strategy included an electronic search of the Cochrane Injuries Group Specialized Register, the Cochrane EPOC Group Specialized Register, CENTRAL (The Cochrane Library 2008, Issue 4), MEDLINE, PubMed, EMBASE, CINAHL, and ISI Web of Science: (SCI-EXPANDED and CPCI-S). We handsearched the Journal of Trauma, Injury, Annals of Emergency Medicine, Academic Emergency Medicine, and Injury Prevention. We searched two clinical trial registries: 1) The World Health Organization International Clinical Trials Registry Platform and, 2) Clinical Trials.gov. We also contacted content experts for further articles. The most recent electronic search was completed in December 2008 and the handsearch was completed up to February 2009.

SELECTION CRITERIA

We searched for randomized controlled trials, controlled clinical trials, controlled before-and-after studies, and interrupted time series studies that used audit filters as an intervention for improving processes of care, morbidity, or mortality for severely injured patients.

DATA COLLECTION AND ANALYSIS

Two authors independently screened the search results, applied inclusion criteria, and extracted data.

MAIN RESULTS

There were no studies identified that met the inclusion criteria for this review.

AUTHORS' CONCLUSIONS

We were unable to identify any studies of sufficient methodological quality to draw conclusions regarding the effectiveness of audit filters as a performance improvement intervention in trauma systems. Future research using rigorous study designs should focus on the relative effectiveness of audit filters in comparison to alternative quality improvement strategies at improving processes of care, functional outcomes, and mortality for injured patients.

Application of International Classification Injury Severity Score to National Surgical Quality Improvement Program defines pediatric trauma performance standards and drives performance improvement

BACKGROUND

The American College of Surgeons National Surgical Quality Improvement Program is becoming a core methodology to define performance as a ratio of observed to expected events. We hypothesized that application of this using International Classification of Injury Severity Score (ICISS) for individual patient risk stratification to a group of hospitals contributing data to the National Pediatric Trauma Registry (NPTR) would apply objective evidence of actual injuries to define an expected standard and identify performance outliers.

METHODS

Using a blinded code, children entered into phase III of the NPTR were aggregated by treating hospital. Individual patient ICISS survival probability (Ps) were calculated using survival risk ratios (SRR) derived from the phase II NPTR dataset (n = 53,253). For each center, sample size, observed mortality, and ICISS Ps were calculated. Probability of mortality (Pm) was computed as 1 - Ps. Logistic regression was used to develop a predictive model for mortality. Logit transformation of Pm was performed to adjust for the skew of minor injury in children and reduce overestimation of low Pm fatalities. Mean Pm was computed for each center and multiplied by its volume to determine expected frequency. Observed to expected ratio (O/E) and 95% confidence interval were calculated to define expected performance and outliers above or below 1 SD of the mean O/E.

RESULTS

Patients treated at 30 pediatric trauma centers (mean volume = 451 +/- 258/patients per center) were evaluated. Mean O/E was 1.001 with SD = 0.404. Twenty-two centers fell within the reference range; O/E of 12 centers exceeded 1, suggesting performance below expectation. Trauma center volume, as reflected by sample, did not correlate to O/E performance.

CONCLUSIONS

Application of ICISS Ps from a national pediatric benchmark population simplifies determination of expected mortality necessary to compute the expected component of National Surgical Quality Improvement Program. Analysis of these ratios of expected to observed mortality demonstrates variance among centers, defines performance against peers using the same benchmarks, and can drive performance improvement based on the objective evidence of injury diagnoses actually encountered.

Regional coordination in medical emergencies and major incidents; plan, execute and teach

BACKGROUND

Although disasters and major incidents are difficult to predict, the results can be mitigated through planning, training and coordinated management of available resources. Following a fire in a disco in Gothenburg, causing 63 deaths and over 200 casualties, a medical disaster response centre was created. The center was given the task to coordinate risk assessments, disaster planning and training of staff within the region and on an executive level, to be the point of contact (POC) with authority to act as "gold control," i.e. to take immediate strategic command over all medical resources within the region if needed. The aim of this study was to find out if the centre had achieved its tasks by analyzing its activities.

METHODS

All details concerning alerts of the regional POC was entered a web-based log by the duty officer. The data registered in this database was analyzed during a 3-year period.

RESULTS

There was an increase in number of alerts between 2006 and 2008, which resulted in 6293 activities including risk assessments and 4473 contacts with major institutions or key persons to coordinate or initiate actions. Eighty five percent of the missions were completed within 24 h. Twenty eight exercises were performed of which 4 lasted more than 24 h. The centre also offered 145 courses in disaster and emergency medicine and crisis communication.

CONCLUSION

The data presented in this study indicates that the center had achieved its primary tasks. Such regional organization with executive, planning, teaching and training responsibilities offers possibilities for planning, teaching and training disaster medicine by giving immediate feed-back based on real incidents.

The Effect of Ambulance Diversions on the Development of Trauma Systems

This report examines the complex relationship between the diversion of ambulances within an emergency medical services system and the management of trauma patients.

Emergency Medical Treatment andActive Labor Act andTrauma Triage

The Emergency Medical Treatment and Active Labor Act (EMTALA) was conceived as a means to ensure that patients with emergent conditions would receive stabilizing care and to avert the potentially dangerous, economically driven, interhospital transfer of patients. This legislation and its subsequent application arrived near the time that regional and statewide trauma systems were established. Trauma systems were developed to guide optimal resource use for the injured patient regardless of the patient's ability to pay. Unfortunately, when coupled with current economic and litigation threats to community emergency and surgical practitioners, EMTALA represents a threat to the continuation of the trauma system concept. Trauma systems are dependent on a tiered hospital network where severely injured patients are taken to a hospital with resources aligned to manage the worst of injuries. When primary triage from the field cannot accomplish this task, secondary triage from a nondesignated or lower-level hospital to the higher-level trauma center is needed. EMTALA has served as a driver to change the priority for secondary triage from addressing the needs of the severely injured patient to filling community hospital surgical specialist emergency department on-call coverage gaps for less severely injured patients. Further, legal action associated with claims of EMTALA violations has needlessly extended medical examination and "stabilization" efforts at community emergency departments prior to needed secondary triage. Higher-level trauma centers will benefit from codifying system-wide emergency medical services practices related to primary and secondary triage, establishing trauma center capacity and divert practices, and initiating "transfer center" operations that control transfer of patients to these centers.

US Trauma Center Preparation for a Terrorist Attack in the Community

BACKGROUND

Since the 2001 terrorist attacks on the United States, federal and state funding, primarily from the National Bioterrorism Hospital Preparedness Program, has resulted in a surge of hospital activity to prepare for future natural or human-caused catastrophes. Trauma centers were integrally involved in the response to the 2001 attacks as first receivers of patients, communication hubs, and as convergence sites for families, the worried well, volunteers, and donors. After the Madrid train station terrorist attack, Congress identified the need to study trauma center preparedness as an essential part of the nation's emergency management system.

METHODS

The NFTC received a one-year grant funded by the Centers for Disease Control and Prevention (CDC/NCIPC) to survey the capability and capacity of trauma centers to respond successfully to mass casualty incidents, particularly those brought about by acts of terrorism. This report summarizes responses to a US CDC/NCIPC-funded survey, R 49 CE000792-01, sent to all designated or verified Level I and II trauma centers in the US, to which 33% or 175 trauma centers replied.

RESULTS

The results are categorized by preparedness scoring, vulnerability, threats, and funding. Planning communication, surge capacity, diversion, sustainability, special populations, and finance represent additional categories examined in the survey.

CONCLUSIONS

Trauma centers are a major resource in disaster management. One-hundred and seventy-five centers candidly reported their resources and vulnerabilities. This inventory should be expanded to all trauma centers and recommendations for change as discussed.

Financial triage in transfer of trauma patients: a myth or a reality?

BACKGROUND

It has been alleged that smaller hospitals transfer out uninsured trauma patients (wallet biopsy), putting the financial burden on major trauma centers.

METHODS

We undertook a retrospective analysis of the National Trauma Data Bank to compare patients who received care at major trauma centers after being transferred from another hospital (transfer group, n = 72,900) with patients who received definitive care at a smaller hospital (nontransfer group, n = 6,826).

RESULTS

Transfer patients were more likely to be uninsured (18% vs 14%; P < .001), but were more severely injured (Injury Severity Score, 11 +/- 10 vs 7 +/- 7; P < .001), or had multiple injuries. After adjustment for these differences, uninsured patients were no more likely to be transferred than insured ones (odds ratio, .95; 95% confidence interval, .88-1.04; P = .3).

CONCLUSIONS

There was no relationship between lack of insurance and likelihood of transfer to a major trauma center.

Assessment of mortality in older trauma patients sustaining injuries from falls or motor vehicle collisions treated in regional level I trauma centers

OBJECTIVE

To compare mortality in elderly trauma patients sustaining fall or motor vehicle collision (MVC) related injuries and who are subsequently treated at regional Level I (tertiary) trauma centers.

SUMMARY BACKGROUND DATA

An increase in the mean age of the Canadian population is leading to a higher proportion of older patients injured in falls who are subsequently treated at Level 1 trauma centers in Quebec. The Level 1 centers were designed to treat younger patients injured in MVCs and violent acts. As a result, discordance may exist between the type of care supplied at these centers and the increased demand for care tailored to older trauma patients.

METHODS

A retrospective cohort study comprised of 4,717 patients over the age of 65; 606 (12.8%) injured in MVCs and 4,111 (87.2%) in falls. The mean (SD) age was 79.6 (8.0) years and 67.9% were female. The mean (SD) Injury Severity Score (ISS) was 10.8 (7.4). Data were obtained from the Quebec Trauma Registry (QTR) for patients treated at 3 Level I trauma centers in the province of Quebec, Canada. The primary outcome measure in this study was mortality.

RESULTS

Being injured in a fall was a strong predictor for mortality, with an odds ratio of 5.11 (95% C.I. = 1.84-14.17, P = 0.002). Additionally, the adjusted mortality rate was 25.3% among fall victims, versus 7.8% for MVC patients. Female gender, older age, higher ISS and an increasing number of injuries were all associated with heightened mortality. In contrast, the number of body regions injured, experiencing complications, sustaining a hip fracture, the Revised Trauma Score, the Prehospital Index and the Charlson (comorbidity) Index had no association with mortality in the Level I centers.

CONCLUSIONS

Elderly patients sustaining fall-related injuries and treated at Level I trauma centers are at risk for excess mortality when compared with those injured in MVCs. Effective and efficient methods for treating this population must be determined.

Imaging may delay transfer of rural trauma victims: a survey of referring physicians

BACKGROUND

Delayed transfer to a trauma center due to unnecessary imaging results in suboptimal patient outcome and increases healthcare costs. Unnecessary imaging may result from beliefs regarding trauma center requirements and legal concerns. We hypothesized that referring physicians consider factors other than clinical criteria when deciding to order imaging studies before transfer of trauma patients.

METHODS

A mail survey of 218 referring physicians to a level I trauma center elicited factors affecting decision to obtain imaging studies before transfer. Graded answers to six questions were obtained and demographics of the physician respondent. Statistical analysis was performed using Fisher's exact test.

RESULTS

One hundred forty-nine of 218 surveys were returned (68.3%). One-third (33.1%) of respondents obtain imaging because of perceived expectations of the receiving trauma center, independent of patient acuity. Twenty percent incorrectly think that the law prohibits transfer before patients are stabilized. Twenty-eight percent obtain imaging because of liability concerns, even if that imaging delays transfer. Overall, 45% obtain imaging for either perceived requirement or liability concern. Non-advanced trauma life support (ATLS)-certified physicians are more likely to use all available resources before transfer than ATLS-certified physicians.

CONCLUSIONS

Factors other than patient care dictate imaging acquisition in almost half of those surveyed. Misperception of expectations, misunderstanding of legal imperatives, and liability concerns all delay transport of the injured. ATLS-certified individuals use imaging more appropriately, thus, promoting more timely transfer. State-wide protocols, education, and liability reform may reduce transport delays.

What World Health Assembly Resolution 60.22 means to those who care for the injured

On May 23, 2007, the World Health Assembly (WHA) adopted WHA Resolution 60.22, "Health Systems: Emergency Care Systems," which called on the World Health Organization (WHO) and governments to adopt a variety of measures to strengthen trauma and emergency care services worldwide. This resolution constituted some of the highest level attention ever devoted to trauma care worldwide. This article reviews the background of this resolution and discusses how it can be of use to surgeons, emergency physicians, and others who care for the injured, especially in low- and middle-income countries.

Surgical quality improvement: a simplified method to apply national standards to pediatric trauma care

BACKGROUND

The emerging "pay for performance" national initiative mandates the development of valid metrics for risk stratification and performance assessment. The International Classification Injury Severity Score (ICISS) predicts survival from injury and is calculated as the product of survival risk ratios (SRRs) for a patient's 3 worst injuries. Survival risk ratios are derived as the proportion of fatalities for every International Classification of Diseases, Ninth Edition, Clinical Modification, diagnosis in a "benchmark" population. We hypothesized that the ICISS prediction model derived from the National Pediatric Trauma Registry (NPTR) would accurately predict mortality in an independent sample from a single pediatric trauma center (PTC) and could be applied to the NSQIP methodology to analyze performance.

METHODS

The ICISS survival probabilities (Ps) were calculated for PTC patients using SRRs computed from 102,608 NPTR records. Records with a single diagnosis and Ps of 1 were excluded from the analysis. Receiver operator characteristics analysis (ROC) was used to evaluate the accuracy of Ps to predict mortality. The Hosmer-Lemeshow statistic was used to determine the degree that the NPTR-derived expected probabilities matched the observed mortality profile at the PTC. Program performance from 2000 to 2004 was then evaluated using Ps adjusted by logit transformation to predict expected mortality (E) for each year cohort. Observed mortality divided by expected mortality (O/E) was calculated for each year group to compare PTC performance to the NSQIP standard of one. The influence of injury severity on these results was determined by evaluating the correlation between O/E and mean Ps of each year cohort.

RESULTS

A total of 1523 records were analyzed. The ROC area under the curve (AUC ) for Ps was .947 (confidence interval, .934-.957). The Hosmer-Lemeshow statistic (chi(2) = 5.102; df = 8; P = .747, not significant) indicated the model fit the data well. Adjusted O/E ratio after logit transformation of Ps for the PTC demonstrated initial performance slightly below standard (1.000778) followed by performance better than expected for the subsequent 4 years (range, .6466-.9784). The ratio of observed (O) to expected (E) demonstrated no correlation to mean Ps (r(2) = .378; P = .208).

CONCLUSION

These data validate the application of injury diagnosis derived survival probabilities as objective metrics for determining performance using the NSQIP methodology. Incorporation of these objective predictors of expected outcome to calculation of the risk adjusted O/E ratio enables trend analysis of program performance over time. The lack of significant correlation between O/E and mean Ps demonstrates that NSQIP does indeed reflect process of care while adjusting for severity of patient pathologic condition.

The challenges of developing a trauma system for Indigenous people

Trauma systems have been shown to provide the best trauma care for injured patients. A trauma system developed for Indigenous people should take into account many factors including geographical remoteness and cultural diversity. Indigenous people suffer from a significant intentional and non-intentional burden of injury, often greater than non-Indigenous populations, and a public health approach in dealing with trauma can be adopted. This includes transport issues, prevention and control of intentional violence, cultural sensitization of health providers, community emergency responses, community rehabilitation and improving resilience. The ultimate aim is to decrease the trauma burden through a trauma system with which indigenous people can fully identify.

Trauma training for nonorthopaedic doctors in low- and middle-income countries

Increasingly, nonspecialist Ghanaian doctors in district hospitals are called upon to perform a variety of surgical procedures for which they have little or no training. They are also required to provide initial stabilization for the injured and, in some cases, provide definitive management where referral is not possible. Elsewhere continuing medical education courses in trauma have improved the delivery of trauma care. Development of such courses must meet the realities of a low-income country. The Department of Surgery, Kwame Nkrumah University of Science and Technology developed a week-long trauma continuing medical education course for doctors in rural districts. The course was introduced in 1997, and has been run annually since. The trauma course specifically addresses the critical issues of trauma care in Ghana. It has improved the knowledge base of doctors, as well as their self-reported process of trauma care. Through the process we have learned lessons that could help in the efforts to improve trauma training and trauma care in other low-income countries.

Pediatric traumatic brain injury is inconsistently regionalized in the United States

OBJECTIVES

Traumatic brain injury is a leading cause of death in children. On the basis of evidence of better outcomes, the American College of Surgery Committee on Trauma recommends that children with severe traumatic brain injury receive care at high-level trauma centers. We assessed rates of adherence to these recommendations and factors associated with adherence.

METHODS

We studied population and hospital discharge data from 2001 from all of the health care referral regions (n = 68) in 6 US states (Florida, Massachusetts, New Jersey, New York, Texas, and Virginia). We identified children with severe traumatic brain injury by using International Classification of Diseases, Ninth Revision, Clinical Modification, codes and American College of Surgery Committee on Trauma criteria. We defined "high-level centers" as either level I or pediatric trauma centers. We considered an area to be well regionalized if >or=90% of severe traumatic brain injury hospitalizations were in high-level centers. We also explored how use of level II trauma centers affected rates of care at high-level centers.

RESULTS

Of 2117 admissions for severe pediatric traumatic brain injury, 67.3% were in high-level centers, and 87.3% were in either high-level or level II centers. Among states, 56.4% to 93.6% of severe traumatic brain injury admissions were in high-level centers. Only 2 states, Massachusetts and Virginia, were well regionalized. Across health care referral regions, 0% to 100% of severe traumatic brain injury admissions were in high-level centers, and only 19.1% of health care referral regions were well regionalized. Only a weak relationship existed between the distance to the nearest high-level center and regionalization. The age of statewide trauma systems had no relationship to the extent of regionalization.

CONCLUSIONS

Despite evidence for improved outcomes of severely injured children admitted to high-level trauma centers, we found that almost one third of the children with severe traumatic brain injury failed to receive care in such centers. Only 2 of 6 states and less than one fifth of 68 health care referral regions were well regionalized. This study highlights problems with current pediatric trauma care that can serve as a basis for additional research and health care policy.

Variability in pediatric utilization of trauma facilities in California: 1999 to 2005

STUDY OBJECTIVE

We identify geographic, system, and socioeconomic differences between injured children cared for within and outside of state-designated trauma centers.

METHODS

This was a nonconcurrent observational study of a population-based sample from the California Office of Statewide Health Planning and Development Public Patient Discharge Database 1999 to 2005. Patients were 1 to 14 years of age, with International Classification of Diseases, Ninth Revision (ICD-9) diagnostic codes indicative of trauma. Injury Severity Scores were calculated from ICD-9 codes and categorized into severity categories. Outcomes were hospitalization in a trauma or nontrauma center.

RESULTS

Children with severe injury who resided 0 to 10, 11 to 25, 26 to 50, and more than 50 miles from a trauma center were hospitalized in these centers at rates of 80.0%, 71.2%, 51.4%, and 28.5%, respectively. Children with severe injury who were living in a county with a trauma center were hospitalized in these centers at rates of 78.8%, whereas children living in a county without a trauma center were hospitalized in trauma centers at rates of 39.0%. Children with severe injury and public, private non-health maintenance organization (HMO), and HMO insurance were hospitalized in trauma centers at rates of 77.7%, 68.0%, and 55.4%, respectively. Age, injury severity, insurance type, residence in a county with a trauma center, and proximity to a trauma center were identified as predictors of trauma center utilization by logistic regression.

CONCLUSION

We demonstrate considerable variation in the utilization pattern of trauma specialty care for children with moderate and severe injuries. Children with HMO and private insurance are cared for less often in trauma centers than those with public insurance, even after adjustment for other variables. Increased distance to a trauma center, as well as lack of trauma center within a county, also decreases trauma center utilization. These results suggest that assessing trauma center utilization patterns in total populations of children may identify opportunities for improved referral policies and practices as part of a larger effort to ensure high-quality trauma care for all children in need.

Trauma systems and timing of patient transfer: are we improving?

INTRODUCTION

The regionalization of trauma services is based on the premise that injured persons presenting to nontertiary facilities will be stabilized and rapidly transported to a more definitive center. Although trauma systems seem to improve outcomes for urban patients, this same benefit has not been shown for rural patients. There are many factors associated with the decision to transfer injured patients to a regional trauma center, including referral hospital and patient age, for example. The purpose of this study is to examine factors that influence the timing of transfer of trauma patients and specifically to determine if establishing specific trauma systems has led to any changes in transfer timing over time.

METHODS

The trauma registry at the University of Wisconsin was queried for all patients admitted between July 1, 1999, and June 30, 2005. Patients were included in this study if they had been transferred to the university hospital after evaluation at an outside hospital. The registry variables that were abstracted were age, referring hospital, emergency department (ED) time at referring hospital, injury severity score (ISS), the presence of a head injury, performance of a head computed tomography (CT), mode of transport, and the date of ED evaluation.

RESULTS

There were 1656 patients with ISS higher than 9 transferred during the period. The mean ED time was 153 +/- 82 minutes. Emergency department time was significantly shorter for those with ISS higher than 25 and for those transported by helicopter. Four hundred ninety-two (30%) patients had a head CT performed at the outside hospital, of which 221 (44%) were repeated at the trauma center. The mean ED time for those in whom a CT was performed was significantly longer than those without CT (179 +/- 81 vs 142 +/- 84 minutes). The ED times were slightly longer for level III hospitals (158 +/- 82 minutes) than for level IV hospitals (137 +/- 74 minutes). Emergency department times were longer for older patients. The times in the ED showed an upward, but not statistically significant, trend. After controlling for all other variables, ED times were not significantly different over the period studied.

CONCLUSION

Development of a statewide trauma system and outreach education has not significantly affected transfer times from nontrauma centers in our system. Outreach educational efforts should focus on systematic trauma evaluation, prompt transfer, and limitation of nontherapeutic testing.

Barriers to implementing protocol-based sepsis resuscitation in the emergency department--results of a national survey

OBJECTIVE

To identify barriers to implementation of a written protocol for early goal-directed therapy for severe sepsis in the busiest emergency departments in the United States.

DESIGN

Telephone survey with both quantitative and qualitative analysis.

SETTING

Two busiest teaching and two busiest nonteaching emergency departments in each of the 25 most densely populated combined statistical areas in the United States.

SUBJECTS

Twenty-four physician directors and 40 nursing managers representing 53% of the 100 emergency departments surveyed.

INTERVENTIONS

Survey questionnaire.

MEASUREMENTS AND MAIN RESULTS

Respondents identified lack of available nursing staff to perform the procedure, the inability to monitor central venous pressure in the emergency department, and challenges in identifying septic patients as the most frequent barriers. Although nurse managers and physicians identified similar barriers, nurses were more likely than physicians to list central venous catheter insertion as an important barrier (38% vs. 5%; p = .01), and physicians were more likely to endorse lack of agreement with the early goal-directed therapy resuscitation protocol (16% vs. 0%; p = .03). There were no statistically significant differences in the rankings assigned by clinicians from teaching and nonteaching hospitals. Qualitative analysis of open-ended questions identified barriers in a number of areas, including barriers to initiating the protocol process and factors that distinguish sepsis from other time-sensitive diseases in the emergency department.

CONCLUSIONS

Nurse managers and physician directors of busy emergency departments representing the largest urban areas in the United States identify multiple barriers to implementing time-sensitive resuscitation to patients with severe sepsis. More than half of all respondents recognized a critical shortage of nursing staff, problems in obtaining central venous pressure monitoring, and challenges in identification of patients with sepsis as the largest roadblocks to overcome in implementing early goal-directed therapy.

Interhospital transfer occurs more slowly for elderly acute trauma patients

The objective of this study was to determine whether elderly acutely injured patients take longer to be transferred from referring hospitals to a regional trauma center than younger patients. We reviewed all trauma patients transferred urgently to a regional trauma center over 2 years. We considered age>or=65 years to be elderly. We performed multivariable linear regression to determine the extra time spent at the referring hospital attributable to elderly status, after adjustment for confounders. For 371 transfers, mean Injury Severity Score was 12, and 12% of patients had hypotension before transfer. Mean time spent at the referring hospital was 233+/-110 min. After adjustment for confounders, including Injury Severity Score and computed tomography (CT) scanning before transfer, elderly patients spent 32 min more at referring hospitals than non-elderly patients (95% confidence interval 1-63 min). We conclude that interhospital transfer of elderly acutely injured trauma patients takes longer than for younger patients. Providers may be less aggressive in treating elderly trauma patients.

Assessment of the status of resources for essential trauma care in Hanoi and Khanh Hoa, Vietnam

INTRODUCTION

The World Health Organization and the International Association for Trauma Surgery and Intensive Care have published the Guidelines for Essential Trauma Care. This provides recommendations for the human and physical resources needed to provide an adequate, essential level of trauma care services in countries at all economic levels worldwide. We sought to use this set of recommendations as a basis to assess the trauma care capabilities in two locations in Vietnam and thus to identify affordable and sustainable methods to strengthen trauma care nationwide.

METHODS

A needs assessment tool was created that incorporated the recommendations of the Guidelines. This was used to conduct in-depth, onsite evaluations of 11 health care facilities in Hanoi and Khanh Hoa Province, including commune health stations, district hospitals, provincial hospitals, and a central hospital.

RESULTS

Resources for trauma care were mostly adequate at provincial and central hospitals. There were several deficiencies at the district hospitals and especially at commune health stations. These included low level of trauma related training and shortages of supplies and equipment. In many cases these shortages were of low-cost items. However, in general, capabilities had improved compared with prior evaluations.

CONCLUSIONS

This study has identified several low-cost ways in which to strengthen trauma care in Vietnam. These include greater use of continuing education courses for trauma care and more attention to trauma related curriculum in schools of medicine and nursing. These also include defining and assuring the availability of a core set of essential trauma related equipment and supplies. A policy recommendation that follows from the above findings is the need for programs to strengthen the organization and planning for trauma care.

International comparison of prehospital trauma care systems

OBJECTIVE

Given the recent emphasis on developing prehospital trauma care globally, we embarked upon a multicentre study to compare trauma patients' outcome within and between countries with technician-operated advanced life support (ALS) and physician-operated (Doc-ALS) emergency medical service (EMS) systems. These environments represent the continuum of prehospital care in high income countries with more advanced prehospital trauma care systems.

METHODS

Five countries with ALS-EMS system and four countries with Doc-ALS EMS system provided us with de-identified patient-level data from their national or local trauma registries. Generalised linear latent and mixed models was used in order to compare emergency department (ED) shock rate (systolic blood pressure (SBP) <90mmHg) and early trauma fatality rate (i.e. death during the first 24h after hospital arrival) between ALS and Doc-ALS EMS systems. Logistic regression was used to compare outcomes of interest among different countries, accounting for within-system correlation in patient outcomes.

RESULTS

After adjustment for patient age, sex, type and mechanism of injury, injury severity score and SBP at scene, the ED shock rate did not vary significantly between Doc-ALS and ALS systems (OR: 1.16, 95% CI: 0.73-1.91). However, the early trauma fatality rate was significantly lower in Doc-ALS EMS systems compared with ALS EMS systems (OR: 0.70, 95% CI: 0.54-0.91). Furthermore, we found a considerable heterogeneity in patient outcomes among countries even with similar type of EMS systems.

CONCLUSION

These findings suggest that prehospital trauma care systems that dispatch a physician to the scene may be associated with lower early trauma fatality rates, but not necessarily with significantly better outcomes on other clinical measures. The reasons for these findings deserve further studies.

An analysis of hospital trauma care performance evaluation

OBJECTIVE

The purpose of this article was to report on a study on the hospital trauma care performance evaluation based on a database of trauma events of participating UK and European hospitals.

METHODS

Performance evaluation has become increasingly important in the quality assessment of health care in general and trauma care in particular. For many years, attempts to quantifying the performance of trauma care systems on a numerical scale have been developed and applied, including the use of Ws statistic. The Trauma Audit and Research Network collected and managed the data. We first investigated the currently used approaches in the evaluation of trauma care systems, and then proposed an alternative using a statistical control based approach for the comparison of different hospitals at one time. Different control charts and types of calculations were also proposed for the chronologic outcome chart, which plots the variation of trauma care within one hospital over time.

RESULTS

New graphical methods for hospital trauma care performance evaluation based on statistical process plots were developed and tested on the project database.

CONCLUSION

A control chart approach to the presentation of the outcome charts for hospital trauma care performance evaluation is presented in this article. The charts are more meaningful than the "caterpillar" plot traditionally used, and avoid the ranking of institutions into "league tables".

Trauma Management Outcomes Associated With Nonsurgeon Versus Surgeon Trauma Team Leaders

STUDY OBJECTIVE

We compare the effectiveness of surgeon and nonsurgeon trauma team leaders.

METHODS

This retrospective study was conducted using data from a Canadian trauma registry database. Data from April 1, 1998, to March 31, 2005, from blunt and penetrating trauma patients aged 16 years or older and with trauma team activation (and without major burns) were included. Patient age, sex, trauma team leader (surgeon or nonsurgeon), mechanism of injury, Injury Severity Score, survival to 3 hours and to discharge, length of stay in the hospital, and Trauma and Injury Severity Score (TRISS) z scores were tabulated.

RESULTS

Data from 807 patients were included. Because of the limited number of penetrating trauma cases, analyses focused on blunt trauma. Surgeon and nonsurgeon trauma team leader groups did not differ on injury severity, age, or sex. No difference was noted in survival to discharge (nonsurgeon 84.8%-surgeon 81.8%=3%; 95% confidence interval [CI] -3.5% to 9.5%), survival to 3 hours (nonsurgeon 96.8%-surgeon 96%=0.8%; 95% CI -2.2% to 3.8%), length of stay (median 13 days for nonsurgeon and 12 days for surgeon groups), or difference between actual and predicted survival (TRISS z scores nonsurgeon 0.64; surgeon 0.99). No trend toward group differences on any outcome variable was observed in penetrating trauma cases.

CONCLUSION

No differences were found in the outcome of trauma patients treated by nonsurgeon versus surgeon trauma team leaders. These findings support a more collaborative approach to resuscitative trauma management with involvement of nonsurgeons as trauma team leaders.

The Delaware Trauma System: Impact of Level III Trauma Centers

BACKGROUND

In 2000, Delaware instituted a trauma system that included establishing four Level III trauma centers in counties previously without trauma centers. The purpose of this study was to analyze whether implementation of this inclusive trauma system reduced the injury-related mortality rates in these counties.

METHODS

Using the state trauma registry, patients with trauma admitted to all acute care hospitals in Delaware from January 1, 1995 through December 31, 2004 were identified and categorized into two groups: preimplementation of an inclusive trauma system (1995-1999), and postimplementation (2000-2004). These groups were compared in aggregate and by individual counties for age, sex, mechanism of injury, Abbreviated Injury Score, injury-related mortality rate, mean Injury Severity Score (ISS), acute transfers out, and acute transfers in (Level I only). chi test and Mann-Whitney U test were used where indicated. Significance was determined to be p < or = 0.05.

RESULTS

After implementation, mortality rates significantly decreased (5.3%-2.8%) and rate of acute transfers out increased (14.7%-19.5%) in the counties served by the Level III centers. The ISS of patients in the Level I trauma center significantly increased (mean ISS = 10) when compared with the Level III trauma centers (mean ISS = 6), reflecting increased transfers of patients with severe injuries.

CONCLUSION

An inclusive state trauma system that included the establishment of Level III trauma centers in previously underserved counties led to a decrease in trauma-related mortality rates in these counties. In the county served by the Level I trauma center, mortality remained unchanged despite an increase in admissions and the injury severity of these admissions.

Prioritizing the organization and management of intensive care services in the United States: the PrOMIS Conference

OBJECTIVE

Adult critical care services are a large, expensive part of U.S. health care. The current agenda for response to workforce shortages and rising costs has largely been determined by members of the critical care profession without input from other stakeholders. We sought to elicit the perceived problems and solutions to the delivery of critical care services from a broad set of U.S. stakeholders.

DESIGN

A consensus process involving purposive sampling of identified stakeholders, preconference Web-based survey, and 2-day conference.

SETTING

Participants represented healthcare providers, accreditation and quality-oversight groups, federal sponsoring institutions, healthcare vendors, and institutional and individual payers.

SUBJECTS

We identified 39 stakeholders for the field of critical care medicine. Thirty-six (92%) completed the preconference survey and 37 (95%) attended the conference.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

Participants expressed moderate to strong agreement with the concerns identified by the critical care professionals and additionally expressed consternation that the critical care delivery system was fragmented, variable, and not patient-centered. Recommended solutions included regionalizing the adult critical care system into "tiers" defined by explicit triage criteria and professional competencies, achieved through voluntary hospital accreditation, supported through an expanded process of competency certification, and monitored through process and outcome surveillance; implementing mechanisms for improved communication across providers and settings and between providers and patients/families; and conducting market research and a public education campaign regarding critical care's promises and limitations.

CONCLUSIONS

This consensus conference confirms that agreement on solutions to complex healthcare delivery problems can be achieved and that problem and solution frames expand with broader stakeholder participation. This process can be used as a model by other specialties to address priority setting in an era of shifting demographics and increasing resource constraints.

Trauma center utilization for children in California 1998-2004: trends and areas for further analysis

BACKGROUND

While it is known that trauma systems improve the outcome of injury in children, there is a paucity of information regarding trauma system function amid changes in policies and health care financing that affect emergency medical systems for children.

OBJECTIVES

To describe the trends in the proportion of pediatric trauma patients acutely hospitalized in trauma-designated versus non-trauma-designated hospitals.

METHODS

This was a retrospective observational study of a population-based cohort obtained by secondary analysis of a publicly available data set: the California Office of Statewide Health Planning and Development Patient Discharge Database from 1998 to 2004. Patients were included in the analysis if they were 0-19 years old, had International Classification of Disease, Ninth Revision (ICD-9) diagnostic codes and E-codes indicative of trauma, had an unscheduled admission, and were discharged from a general acute care hospital (N = 111,566). Proportions of patients hospitalized in trauma-designated hospitals versus non-trauma-designated hospitals were calculated for Injury Severity Score and death. Injury Severity Scores were calculated from ICD-9 codes. Primary outcomes were hospitalization in a trauma center and death two or more days after hospitalization.

RESULTS

Over the study period, the proportion of children aged 0-14 years with acute trauma requiring hospitalization and who were cared for in trauma-designated hospitals increased from 55% (95% confidence interval [CI] = 54% to 56%) in 1998 to 66% (95% CI = 65% to 67%) in 2004 (p < 0.01). For children aged 15-19 years, the proportion increased from 55% (95% CI = 54% to 57%) in 1998 to 74% (95% CI = 72% to 75%) in 2004 (p < 0.0001). When trauma discharges were stratified by injury severity, the proportion of children with severe injury who were hospitalized in trauma-designated hospitals increased from 69% (95% CI = 66% to 72%) in 1998 to 84% (95% CI = 82% to 87%) in 2004, a rate higher than in children with moderate injury (59% [95% CI = 58% to 61%] in 1998 and 75% [95% CI = 74% to 76%] in 2004) and mild injury (51% [95% CI = 50% to 52%] in 1998 and 63% [95% CI = 62% to 64%] in 2004) (p < 0.0001 for each injury severity category and both age groups). Of the hospitalized children who died two or more days after injury (n = 502), 18.1% died in non-trauma-designated hospitals (p < 0.002 for children aged 0-14 years; p = 0.346 for children aged 15-19 years).

CONCLUSIONS

An increasing majority of children with trauma were cared for in trauma-designated hospitals over the study period. However, 23% of children with severe injuries, and 18.1% of pediatric deaths more than two days after injury, were cared for in non-trauma-designated hospitals. These findings demonstrate an important opportunity for improvement. If we can characterize those children who do not access the trauma system despite severe injury or death, we will be able to design clinical protocols and implement policies that ensure access to appropriate regional trauma care for all children in need.

Ethical imperatives in staffing and managing a trauma intensive care unit

As U.S. trauma surgery evolves to embrace the concept and practice of acute care surgery, the organization and management structure of the intensive care unit must also grow to reflect new challenges and imperatives faced by trauma surgeons. Key issues to be explored in light of acute care surgery include the role of the traumatologist/intensivist in the intensive care unit, as opposed to the traumatologist without specific critical care training, and a potentially expanded role for nonsurgical intensivists as the critical care time available for trauma/intensivists wanes due to increased surgical and non-critical care patient volume. Each of these changes to the practice of trauma/surgical critical care and acute care surgery are evaluated in light of the primacy of appropriately trained intensivists in the critical care unit. The ethics of providing the best care possible is interrogated in light of different service models in both the university and community settings. The roles of residents, fellows, and midlevel practitioners in supporting the goal of the intensivist and the critical care team is similarly explored. A recommendation for an ethical organizational and management structure is presented.

Socioeconomic factors, medicolegal issues, and trauma patient transfer trends: Is there a connection?

BACKGROUND

A number of forces have come together to effect a perceived change in the volume and nature of transfers to Level I trauma centers recently. These may have little to do with the actual clinical need. This study seeks to verify whether a change in the profile of trauma transfers has occurred and to characterize the nature of any changes.

METHODS

Retrospective review of state trauma registry data from 1999 through 2003 including day and time of transfer, Injury Severity Score (ISS), primary ICD-9, payor status, and mortality. The transfer group (TTP) was compared with the general population of trauma patients (ATP) and variables trended. Analysis employed descriptive statistics and logistic regression. Average malpractice insurance premium charges and measures of subspecialty surgeon participation in trauma care were also trended.

RESULTS

During the study period ATP increased by 6% and TTP by 34%. The majority of transfers were from Level II to Level I trauma centers. Mean ISS increased from 9.1 to 10.0 (1.2%) in ATP and from 11.3 to 12.8 (2%) in TTP. The mortality rate over time was essentially unchanged for both groups; 4% ATP versus 5% TTP. Proportion of self-pay patients in each group remained relatively static between 20% to 25%. The number of patients with head injury (HI) increased by 14%, their transfer rate increased by 44%. Orthopedic injury (OI) prevalence increased 25% whereas transfers increased by 48%. Mean ISS increased from 13.7 to 14.8 and 11.1 to 12.9, respectively. The variables most significant for predicting transfer were arrival at initial emergency department between 3:00 pm and 7:00 am and OI or HI. Concomitantly, the mean malpractice insurance premium paid by general, orthopedic, and neurosurgeons each rose by approximately 90% during the study period. Waivers of regulatory compliance were requested by 28% of trauma centers (72% Level II) with 39% of requests related to lack of neurosurgery services.

CONCLUSION

During the study period, a disproportionate increase in TTP occurred in comparison to ATP. This finding is more pronounced in patients with HI and OI. Findings do not appear attributable to changes in severity or proportion of self payors. The ISS of TTP is below 16. Concomitantly, there was a precipitous rise in malpractice premiums and a functional decrease in neurosurgeons. This suggests a multifactorial reluctance or inability of initial hospitals to care for patients they are theoretically capable of treating, placing undo burden on Level I centers.

A regional medical operations center improves disaster response and inter-hospital trauma transfers

BACKGROUND

Delays in both inter-hospital trauma transfers and disaster response are common. We hypothesized patient flow could be improved by formal adoption of systems that improve cooperation and communication.

METHODS

The regional trauma database of the Southwest Texas Regional Advisory Council for Trauma and the Regional Medical Operations Center (RMOC) database were queried to test the hypothesis.

RESULTS

A total of 9507 trauma patients were transferred. Medcom resulted in decreased transfer process times. The RMOC was activated during Hurricanes Katrina and Rita. During two 24-hour periods, the RMOC coordinated the inter-hospital transfer of 781 patients and the movement of thousands of evacuees and special needs patients.

CONCLUSIONS

Medcom, an organized system combining a communications center with formal trauma center cooperation, improves patient flow and reduces trauma transfer times. The RMOC, based on the same principles of cooperation and communication, allows for rapid transfer of hospitalized and special needs patients during disaster/mass casualty situations.