Showing papers by "Russell L. Gruen published in 2014"

Living systematic reviews: an emerging opportunity to narrow the evidence-practice gap

Abstract: The current difficulties in keeping systematic reviews up to date leads to considerable inaccuracy, hampering the translation of knowledge into action. Incremental advances in conventional review updating are unlikely to lead to substantial improvements in review currency. A new approach is needed. We propose living systematic review as a contribution to evidence synthesis that combines currency with rigour to enhance the accuracy and utility of health evidence. Living systematic reviews are high quality, up-to-date online summaries of health research, updated as new research becomes available, and enabled by improved production efficiency and adherence to the norms of scholarly communication. Together with innovations in primary research reporting and the creation and use of evidence in health systems, living systematic review contributes to an emerging evidence ecosystem.

Health outcomes of delayed union and nonunion of femoral and tibial shaft fractures.

Abstract: Introduction Knowledge about the functional consequences of lower limb long bone fractures is helpful to inform patients, clinicians and employers about their recovery process and prognosis. This study aims to describe the epidemiology and health outcomes of femoral and tibial shaft fractures treated at two level I trauma centres, by comparing the differences between patients with delayed union or nonunion and patients with union. Patients and methods An analysis of registry data over two years, supplemented with medical record review, was conducted. Fracture healing was retrospectively assessed by clinical and radiological evidence of union, and the need for surgical intervention. SF-12 scores, and work and pain status were prospectively recorded at six and twelve months post injury. Results 285 fractures progressed to union and 138 fractures developed delayed union or nonunion. There was a significant difference between the two cohorts with regards to the mechanism of injury, association with multi-trauma, open fractures, grade of Gustilo classification, patient fund source, smoking status and presence of comorbidities. The SF-12 physical component score was less than 50 at both six and twelve months with improvement in the union group, but not in the delayed union or nonunion group. 72% of patients with union had returned to work at one year, but 54% continued to have pain. The difference compared to patients with delayed union or nonunion was significant. Discussion Even patients whose fractures unite in the expectant time-frame will have residual physical disability. Patients with delayed union or nonunion have still poorer outcomes, including ongoing problems with returning to work and pain. It is important to educate patients about their injury so that they have realistic expectations. This is particularly relevant given that the patients most likely to sustain femoral or tibial shaft fractures are working-age healthy adults, and up to a third of fractures may develop delayed union or nonunion. Conclusion Despite modern treatment, the patient-reported outcomes of lower limb long bone shaft fractures do not return to normal at one year. Patients with delayed union or nonunion can expect poorer outcomes.

Understanding practice: the factors that influence management of mild traumatic brain injury in the emergency department-a qualitative study using the Theoretical Domains Framework

Abstract: Mild traumatic brain injury is a frequent cause of presentation to emergency departments. Despite the availability of clinical practice guidelines in this area, there is variation in practice. One of the aims of the Neurotrauma Evidence Translation program is to develop and evaluate a targeted, theory- and evidence-informed intervention to improve the management of mild traumatic brain injury in Australian emergency departments. This study is the first step in the intervention development process and uses the Theoretical Domains Framework to explore the factors perceived to influence the uptake of four key evidence-based recommended practices for managing mild traumatic brain injury. Semi-structured interviews were conducted with emergency staff in the Australian state of Victoria. The interview guide was developed using the Theoretical Domains Framework to explore current practice and to identify the factors perceived to influence practice. Two researchers coded the interview transcripts using thematic content analysis. A total of 42 participants (9 Directors, 20 doctors and 13 nurses) were interviewed over a seven-month period. The results suggested that (i) the prospective assessment of post-traumatic amnesia was influenced by: knowledge; beliefs about consequences; environmental context and resources; skills; social/professional role and identity; and beliefs about capabilities; (ii) the use of guideline-developed criteria or decision rules to inform the appropriate use of a CT scan was influenced by: knowledge; beliefs about consequences; environmental context and resources; memory, attention and decision processes; beliefs about capabilities; social influences; skills and behavioral regulation; (iii) providing verbal and written patient information on discharge was influenced by: beliefs about consequences; environmental context and resources; memory, attention and decision processes; social/professional role and identity; and knowledge; (iv) the practice of providing brief, routine follow-up on discharge was influenced by: environmental context and resources; social/professional role and identity; knowledge; beliefs about consequences; and motivation and goals. Using the Theoretical Domains Framework, factors thought to influence the management of mild traumatic brain injury in the emergency department were identified. These factors present theoretically based targets for a future intervention.

Systematic review of the benefits and harms of whole-body computed tomography in the early management of multitrauma patients: are we getting the whole picture?

Abstract: BACKGROUNDThere is considerable interest in whether routine whole-body computed tomography (WBCT) imaging produces different patient outcomes in blunt trauma patients when compared with selective imaging. This article aimed to systematically review the literature for all outcomes measured in compari

Tranexamic acid for trauma: Filling the ‘GAP’ in evidence

Abstract: Following findings of the Clinical Randomisation of an Antifibrinolytic in Significant Haemorrhage (CRASH-2) trial, tranexamic acid (TxA) use post trauma is becoming widespread. However, issues of generalisability, applicability and predictability beyond the context of study sites remain unresolved. Internal and external validity of the CRASH-2 trial are currently lacking and therefore incorporation of TxA into routine trauma resuscitation guidelines appears premature. The Pre-hospital Antifibrinolytics for Traumatic Coagulopathy and Haemorrhage (PATCH)-Trauma study is a National Health and Medical Research Council-funded randomised controlled trial of early administration of TxA in severely injured patients likely to have acute traumatic coagulopathy. The study population chosen has high mortality and morbidity and is potentially most likely to benefit from TxA's known mechanisms of action. This and further trials involving appropriate sample populations are required before evidence based guidelines on TxA use during trauma resuscitation can be developed.

Where to build the bridge between evidence and practice?: results of an international workshop to prioritize knowledge translation activities in traumatic brain injury care.

Abstract: INTRODUCTION Treatment of patients with traumatic brain injury (TBI) should be based upon the strongest evidence to achieve optimal patient outcomes. Given the challenges, efforts involved, and delays in uptake of evidence into practice, priorities for knowledge translation (KT) should be chosen carefully. An international workshop was convened to identify KT priorities for acute and rehabilitation care of TBI and develop KT projects addressing these priorities. METHODS An expert panel of 25 neurotrauma clinicians, researchers, and KT scientists representing 4 countries examined 66 neurotrauma research topics synthesized from 2 neurotrauma evidence resources: Evidence Based Review of Acquired Brain Injury and Global Evidence Mapping projects. The 2-day workshop combined KT theory presentations with small group activities to prioritize topics using a modified Delphi method. RESULTS Four acute care topics and 3 topics in the field of rehabilitation were identified. These were focused into 3 KT project proposals: optimization of intracranial pressure and nutrition in the first week following TBI; cognitive rehabilitation following TBI; and vocational rehabilitation following TBI. CONCLUSION Three high-priority KT projects were developed: the first combined 2 important topics in acute TBI management of intracranial pressure management and nutrition, and the other projects focused on cognitive rehabilitation and vocational rehabilitation.

Mild traumatic brain injury in older adults: early cognitive outcome.

Abstract: Severe traumatic brain injury (TBI) in older age is associated with high rates of mortality. However, little is known about outcome following mild TBI (mTBI) in older age. We report on a prospective cohort study investigating 3 month outcome in older age patients admitted to hospital-based trauma services. First, 50 mTBI older age patients and 58 orthopedic controls were compared to 123 community control participants to evaluate predisposition and general trauma effects on cognition. Specific brain injury effects were subsequently evaluated by comparing the orthopedic control and mTBI groups. Both trauma groups had significantly lower performances than the community group on prospective memory (d=0.82 to 1.18), attention set-shifting (d=-0.61 to -0.69), and physical quality of life measures (d=0.67 to 0.84). However, there was only a small to moderate but non-significant difference in the orthopedic control and mTBI group performances on the most demanding task of prospective memory (d=0.37). These findings indicate that, at 3 months following mTBI, older adults are at risk of poor cognitive performance but this is substantially accounted for by predisposition to injury or general multi-system trauma. (JINS, 2014, 20, 1-9). Language: en

Nutrition therapy in the optimisation of health outcomes in adult patients with moderate to severe traumatic brain injury: Findings from a scoping review

Abstract: Introduction Patients who have sustained traumatic brain injury (TBI) have increased nutritional requirements yet are often unable to eat normally, and adequate nutritional therapy is needed to optimise recovery. The aim of the current scoping review was to describe the existing evidence for improved outcomes with optimal nutrition therapy in adult patients with moderate to severe TBI, and to identify gaps in the literature to inform future research. Methods Using an exploratory scoping study approach, Medline, Cinahl, Embase, CENTRAL, the Neurotrauma reviews in the Global Evidence Mapping (GEM) Initiative, and Evidence Reviews in Acquired Brain Injury (ERABI) were searched from 2003 to 14 November 2013 using variations of the search terms ‘traumatic brain injury’ and ‘nutrition’. Articles were included if they reported mortality, morbidity, or length of stay outcomes, and were classified according to the nature of nutrition intervention and study design. Results Twenty relevant articles were identified of which: 12 were original research articles; two were systematic reviews; one a meta-analysis; and five were narrative reviews. Of these, eleven explored timing of feed provision, eight explored route of administration of feeding, nine examined the provision of specific nutrients, and none examined feeding environment. Some explored more than one intervention. Three sets of guidelines which contain feeding recommendations were also identified. Discussion Inconsistency within nutrition intervention methods and outcome measures means that the present evidence base is inadequate for the construction of best practice guidelines for nutrition and TBI. Further research is necessary to elucidate the optimal nutrition therapy for adults with TBI with respect to the timing, route of administration, nutrient provision and feeding environment. A consensus on the ideal outcome measure and the most appropriate method and timing of its measurement is required as a foundation for this evidence base.

Organising health care services for people with an acquired brain injury: an overview of systematic reviews and randomised controlled trials

Abstract: Background: Acquired brain injury (ABI) is the leading cause of disability worldwide yet there is little information regarding the most effective way to organise ABI health care services. The aim of this review was to identify the most up-to-date high quality evidence to answer specific questions regarding the organisation of health care services for people with an ABI. Methods: We conducted a systematic review of English papers using MEDLINE, EMBASE, PsycINFO, CINAHL and the Cochrane Library. We included the most recently published high quality systematic reviews and any randomised controlled trials, non-randomised controlled trials, controlled before after studies or interrupted time series studies published subsequent to the systematic review. We searched for papers that evaluated pre-defined organisational interventions for adults with an ABI. Organisational interventions of interest included fee-for-service care, integrated care, integrated care pathways, continuity of care, consumer engagement in governance and quality monitoring interventions. Data extraction and appraisal of included reviews and studies was completed independently by two reviewers. Results: A total of five systematic reviews and 21 studies were included in the review; eight of the papers (31%) included people with a traumatic brain injury (TBI) or ABI and the remaining papers (69%) included only participants with a diagnosis of stroke. We found evidence supporting the use of integrated care to improve functional outcome and reduce length of stay and evidence supporting early supported discharge teams for reducing morbidity and mortality and reducing length of stay for stroke survivors. There was little evidence to support case management or the use of integrated care pathways for people with ABI. We found evidence that a quality monitoring intervention can lead to improvements in process outcomes in acute and rehabilitation settings. We were unable to find any studies meeting our inclusion criteria regarding fee-for-service care or engaging consumers in the governance of the health care organisation. Conclusions: The review found evidence to support integrated care, early supported discharge and quality monitoring interventions however, this evidence was based on studies conducted with people following stroke and may not be appropriate for all people with an ABI.

An intensive physiotherapy program improves mobility for trauma patients.

Abstract: BACKGROUNDPhysiotherapy is integral to modern trauma care. Early physiotherapy and mobility have been shown to improve outcomes in patients with isolated injuries; however, the optimal intensity of physiotherapy in the multitrauma patient population has not yet been examined. The primary aim of this

Title and Abstract Screening and Evaluation in Systematic Reviews (TASER): a pilot randomised controlled trial of title and abstract screening by medical students

Abstract: Background: The production of high quality systematic reviews requires rigorous methods that are time-consuming and resource intensive. Citation screening is a key step in the systematic review process. An opportunity to improve the efficiency of systematic review production involves the use of non-expert groups and new technologies for citation screening. We performed a pilot study of citation screening by medical students using four screening methods and compared students’ performance to experienced review authors. Methods: The aims of this pilot randomised controlled trial were to provide preliminary data on the accuracy of title and abstract screening by medical students, and on the effect of screening modality on screening accuracy and efficiency. Medical students were randomly allocated to title and abstract screening using one of the four modalities and required to screen 650 citations from a single systematic review update. The four screening modalities were a reference management software program (EndNote), Paper, a web-based systematic review workflow platform (ReGroup) and a mobile screening application (Screen2Go). Screening sensitivity and specificity were analysed in a complete case analysis using a chi-squared test and Kruskal-Wallis rank sum test according to screening modality and compared to a final set of included citations selected by expert review authors. Results: Sensitivity of medical students’ screening decisions ranged from 46.7% to 66.7%, with students using the web-based platform performing significantly better than the paper-based group. Specificity ranged from 93.2% to 97.4% with the lowest specificity seen with the web-based platform. There was no significant difference in performance between the other three modalities. Conclusions: Medical students are a feasible population to engage in citation screening. Future studies should investigate the effect of incentive systems, training and support and analytical methods on screening performance.

Implementing evidence-based recommended practices for the management of patients with mild traumatic brain injuries in Australian emergency care departments: study protocol for a cluster randomised controlled trial

Abstract: Mild head injuries commonly present to emergency departments. The challenges facing clinicians in emergency departments include identifying which patients have traumatic brain injury, and which patients can safely be sent home. Traumatic brain injuries may exist with subtle symptoms or signs, but can still lead to adverse outcomes. Despite the existence of several high quality clinical practice guidelines, internationally and in Australia, research shows inconsistent implementation of these recommendations. The aim of this trial is to test the effectiveness of a targeted, theory- and evidence-informed implementation intervention to increase the uptake of three key clinical recommendations regarding the emergency department management of adult patients (18 years of age or older) who present following mild head injuries (concussion), compared with passive dissemination of these recommendations. The primary objective is to establish whether the intervention is effective in increasing the percentage of patients for which appropriate post-traumatic amnesia screening is performed. The design of this study is a cluster randomised trial. We aim to include 34 Australian 24-hour emergency departments, which will be randomised to an intervention or control group. Control group departments will receive a copy of the most recent Australian evidence-based clinical practice guideline on the acute management of patients with mild head injuries. The intervention group will receive an implementation intervention based on an analysis of influencing factors, which include local stakeholder meetings, identification of nursing and medical opinion leaders in each site, a train-the-trainer day and standardised education and interactive workshops delivered by the opinion leaders during a 3 month period of time. Clinical practice outcomes will be collected retrospectively from medical records by independent chart auditors over the 2 month period following intervention delivery (patient level outcomes). In consenting hospitals, eligible patients will be recruited for a follow-up telephone interview conducted by trained researchers. A cost-effectiveness analysis and process evaluation using mixed-methods will be conducted. Sample size calculations are based on including 30 patients on average per department. Outcome assessors will be blinded to group allocation. Australian New Zealand Clinical Trials Registry ACTRN12612001286831 (date registered 12 December 2012).

Non‐surgical interventions for the management of type 2 dens fractures: a systematic review

Abstract: Background Non-surgical immobilization strategies for type 2 odontoid fractures vary considerably, with some surgeons preferring rigid collars, halothoracic bracing or the Minerva brace. Choice of device should be informed by the effectiveness in achieving union, whilst minimizing mortality and complications. Objectives Perform a systematic review evaluating the efficacy of non-surgical interventions for type 2 odontoid fractures. Data Sources MEDLINE (OvidSP), EMBASE (OvidSP) and The Cochrane Library, ClinicalTrials.gov, Current Controlled Trials. Methods We conducted a systematic review of studies directly comparing the halothoracic brace and cervical collars or the Minerva brace for union, mortality and complications. Studies were appraised for quality and bias, and results were pooled for analysis. Results Our search identified 1794 citations, 13 of which met inclusion criteria. There were no randomized or prospective studies. All studies were small, retrospective and observational. Our results demonstrate a greater likelihood of developing stable union (osseous and fibrous); relative risk (RR) 1.27 (95% confidence intervals (CI) 1.03 to 1.57; P = 0.03); and airway complications; RR 7.52 (95% CI 1.39 to 40.83; P = 0.02) with halothoracic bracing compared with cervical collar. In patients >65, there was a greater risk of airway complications; RR 7.50 (0.96–58.36; P = 0.05). No other significant differences were identified. Conclusion Evidence to support selection of non-surgical immobilization in type 2 odontoid fractures is poor. Osseous union has traditionally been the benchmark for ‘successful’ treatment; however, evidence of association between union and improved outcomes is lacking. We highlight the need for a randomized study to promote evidence-based decision-making in the non-surgical management of this injury.

Early predictors of health-related quality of life outcomes in polytrauma patients with spine injuries: a level 1 trauma center study.

Abstract: Study Design Retrospective review on clinical-quality trauma registry prospective data. Objective To identify early predictors of suboptimal health status in polytrauma patients with spine injuries. Methods A retrospective review on a prospective cohort was performed on spine-injured polytrauma patients with successful discharge from May 2009 to January 2011. The Short Form 12-Questionnaire Health Survey (SF-12) was used in the health status assessment of these patients. Univariate and multivariate logistic regression models were applied to investigate the effects of the Injury Severity Score, age, blood sugar level, vital signs, brain trauma severity, comorbidities, coagulation profile, spine trauma-related neurologic status, and spine injury characteristics of the patients. Results The SF-12 had a 52.3% completion rate from 915 patients. The patients who completed the SF-12 were younger, and there were fewer patients with severe spinal cord injuries (American Spinal Injury Association classifications A, B, and C). Other comparison parameters were satisfactorily matched. Multivariate logistic regression revealed five early predictive factors with statistical significance ( p ≤ 0.05). They were (1) tachycardia (odds ratio [OR] = 1.88; confidence interval [CI] = 1.11 to 3.19), (2) hyperglycemia (OR = 2.65; CI = 1.51 to 4.65), (3) multiple chronic comorbidities (OR = 2.98; CI = 1.68 to 5.26), and (4) thoracic spine injuries (OR = 1.54; CI = 1.01 to 2.37). There were no independent early predictive factors identified for suboptimal mental health-related qualify of life outcomes. Conclusion Early independent risk factors predictive of suboptimal physical health status identified in a level 1 trauma center in polytrauma patients with spine injuries were tachycardia, hyperglycemia, multiple chronic medical comorbidities, and thoracic spine injuries. Early spine trauma risk factors were shown not to predict suboptimal mental health status outcomes.

Tranexamic acid and trauma.

Abstract: TO THE EDITOR: Gruen and colleagues1 have not accurately represented the current safety data on the risk of vascular occlusive events (VOE) with tranexamic acid (TxA), including deep vein thrombosis (DVT) and pulmonary embolism (PE). A systematic review of data for 10 488 surgical patients showed lower mortality with TxA and no difference in DVT (risk ratio [RR], 0.86; 95% CI, 0.53–1.39; P = 0.54) or PE (RR, 0.61; 95% CI, 0.25–1.47; P = 0.27).2 The CRASH-2 (Clinical Randomisation of an Antifibrinolytic in Significant Haemorrhage 2)3 trial involving 20 211 patients showed there was a trend to fewer VOE in the tranexamic acid group compared with placebo (168/10 060 [1.7%] v 201/10 067 [2.0%]; P = 0.084). Gruen et al implied that the low rate of PE (0.7%) and DVT (0.4%) in this study renders these findings suspect. Low detection of DVT and PE applied equally to both groups and only affects study power — which is not an issue in this large study. Gruen and colleagues stated that “in contrast” the observational MATTERs (Military Application of Tranexamic Acid in Trauma Emergency Resuscitation)4 trial showed PE and DVT rates that were, respectively, nine and 12 times the rates for the control group. They neglected to mention that the rates in the control group were 2/603 (0.3%) and 1/603 (0.2%) — lower than the rates in the less severely injured CRASH 2 patients. The MATTERs study was unblinded, so the difference could easily have been due to more investigations in the TxA group. Finally, the MATTERs study reported that the inhospital mortality in the TxA group was 17.4% compared with 23.9% in the group not given TxA (P = 0.03). Unlike nonfatal DVT and PE, death is not a condition that requires investigations to diagnose. James Jarman Anaesthetist

Optimising support for informal carers of the long-term disabled to enhance resilience and sustainability

Abstract: Optimising carer resilience has direct benefits to carers, and additional benefits to the overall care support system by reducing dependence on paid care. Executive summary People with severe and chronic disabilities represent a significant proportion of the population who require assistance to live in their own home and be a part of the community. In addition to assistance from the paid carer workforce, this assistance is provided by family, relatives or friends who are not paid or formally trained in the provision of care and support. These informal carers assist with a variety of tasks including activities of daily living, emotional care and support and accessing medical care and ongoing therapy to optimise independence. There are 2.7 million people in Australia who provide informal (unpaid) care to a person with a disability or long-term health condition, of which 770,000 provide the majority of care and support to people with a severe disability. Given their substantial contribution to care provision and the physical, emotional and other impacts of providing care, it is important to understand the experience of informal carers and address their support needs. In recent years, studies have elucidated the substantial effects of providing care on the psychological, physical, social and other impacts of providing care to a person with a long-term disability. There are a range of interventions to mitigate these impacts, which are provided in Australia through a variety of national and local government and nongovernment entities with varying efficacy. Optimising carer resilience has direct benefits to carers, and additional benefits to the overall care support system by reducing dependence on paid care. This NTRI Forum aims to investigate effective strategies for providing support (excluding skills-related education and training, i.e. manual handling and transfers) to informal carers that can help to optimise their resilience, and the sustainability of the long-term disabled. An evidence review of literature identified 25 relevant reviews and primary studies and a further 16 ongoing primary studies. The overall results of reviews of carer support interventions were inconclusive, therefore firm conclusions regarding what works and doesn’t work cannot be made. However, evidence was reported as ‘good’ for educational and psycho-educational interventions, counselling and psychosocial interventions and multicomponent interventions; Evidence for care co-ordination and family support interventions was described as ‘promising’; Evidence for technology-based interventions was conflicting in the setting of Dementia, but more positive in the area of catastrophic injury; Evidence for respite care was described as ‘not strong’, and although benefits were reported, the importance of additional support strategies in conjunction with respite care was emphasised. Similarly, emerging positive evidence in favour of support groups was reported, however additional concurrent support strategies were recommended. Passive information dissemination alone was found to be ineffective. The review also outlined a range of factors to consider in interpreting this evidence and identified implications for practice and research.