A simulation-based randomized trial of ABCDE style cognitive aid for emergency medical services CHecklist In Prehospital Settings: the CHIPS-study.

BACKGROUND: Checklists are a powerful tool for reduction of mortality and morbidity. Checklists structure complex processes in a reproducible manner, optimize team interaction, and prevent errors related to human factors. Despite wide dissemination of the checklist, effects of checklist use in the prehospital emergency medicine are currently unclear. The aim of the study was to demonstrate that participants achieve higher adherence to guideline-recommended actions, manage the scenario more time-efficient, and thirdly demonstrate better adherence to the ABCDE-compliant workflow in a simulated ROSC situation. METHODS: CHIPS was a prospective randomized case-control study. Professional emergency medical service teams were asked to perform cardiopulmonary resuscitation on an adult high-fidelity patient simulator achieving ROSC. The intervention group used a checklist which transferred the ERC guideline statements of ROSC into the structure of the 'ABCDE' mnemonic. Guideline adherence (performance score, PS), utilization of process time (items/minute) and workflow were measured by analyzing continuous A/V recordings of the simulation. Pre- and post-questionnaires addressing demographics and relevance of the checklist were recorded. Effect sizes were determined by calculating Cohen's d. The level of significance was defined at p < 0.05. RESULTS: Twenty scenarios in the intervention group (INT) and twenty-one in the control group (CON) were evaluated. The average time of use of the checklist (CU) in the INT was 6.32 min (2.39-9.18 min; SD = 2.08 min). Mean PS of INT was significantly higher than CON, with a strong effect size (p = 0.001, d = 0.935). In the INT, significantly more items were completed per minute of scenario duration (INT, 1.48 items/min; CON, 1.15 items/min, difference: 0.33/min (25%), p = 0.001), showing a large effect size (d = 1.11). The workflow did not significantly differ between the groups (p = 0.079), although a medium effect size was shown (d = 0.563) with the tendency of the CON group deviating stronger from the ABCDE than the INT. CONCLUSION: Checklists can have positive effects on outcome in the prehospital setting by significantly facilitates adherence to guidelines. Checklist use may be time-effective in the prehospital setting. Checklists based on the 'ABCDE' mnemonic can be used according to the 'do verify' approach. Team Time Outs are recommended to start and finish checklists.

Preparation of hospitals for mass casualty incidents in Bavaria, Germany: care capacities for penetrating injuries and explosions in TerrorMASCALs.

BACKGROUND: In a terror attack mass casualty incident (TerrorMASCAL), compared to a "normal" MASCAL, there is a dynamic course that can extend over several hours. The injury patterns are penetrating and perforating injuries. This article addresses the provision of material and personnel for the care of special injuries of severely injured persons that may occur in the context of a TerrorMASCAL. METHODS: To answer the research question about the preparation of hospitals for the care of severely injured persons in a TerrorMASCAL, a survey of trauma surgery departments in Bavaria (Germany) was conducted using a questionnaire, which was prepared in three defined steps based on an expert consensus. The survey is divided into a general, neurosurgical, thoracic, vascular and trauma surgery section. In the specialized sections, the questions relate to the implementation of and material and personnel requirements for special interventions that are required, particularly for injury patterns following gunshot and explosion injuries, such as trepanation, thoracotomy and balloon occlusion of the aorta. RESULTS: In the general section, it was noted that only a few clinics have an automated system to notify off-duty staff. When evaluating the data from the neurosurgical section, the following could be established with regard to the performance of trepanation: the regional trauma centers do not perform trepanation but nevertheless have the required material and personnel available. A similar result was recorded for local trauma centers. In the thoracic surgery section, it could be determined that almost all trauma centers that do not perform thoracotomy have the required material available. This group of trauma centers also stated that they have staff who can perform thoracotomy independently. The retrograde endovascular aortic occlusion procedure is possible in 88% of supraregional, 64% of regional and 10% of local trauma centers. Pelvic clamps and external fixators are available at all trauma centers. CONCLUSION: The results of the survey show potential for optimization both in the area of framework conditions and in the care of patients. Consistent and specific training measures, for example, could improve the nationwide performance of these special interventions. Likewise, it must be discussed whether the abovementioned special procedures should be reserved for higher-level trauma centers.

Applying Principles From Aviation Safety Investigations to Root Cause Analysis of a Critical Incident During a Simulated Emergency.

STATEMENT: Safety investigations in aviation aim to identify potential root causes. They use structured techniques to analyze information from flight data and cockpit voice recorders. Full-scale medical simulations using audiovisual recordings provide similar possibilities. During a simulated cardiac arrest, an incident related to use of the defibrillator (automated external defibrillator) occurred with emergency medical services (EMS) providers. Treatment interventions and dialogs during the incident were extracted from audiovisual recordings and transferred into a transcript of events.Knowing indicated treatment measures, the team adhered to automated external defibrillator voice prompts rather than follow their own assessment. Cardiopulmonary resuscitation was on hold for 72% of the time. Time to first defibrillation was delayed by 2:17 minutes. Transcript allowed us to identify faulty decision-making, loss of leadership, and automation bias as possible root causes. Use of RCA methodology during medical simulation improves understanding of critical incidents and can contribute to training of EMS personnel and education of instructors.

Microlearning for patient safety: Crew resource management training in 15-minutes.

OBJECTIVES: We sought to establish the feasibility of chunking crew resource management (CRM) training into micro-size interventions and to compare different training approaches in the context of micro-learning. DESIGN: We evaluated whether participants in micro-learning CRM activities achieved learning objectives following training. In a between-subjects design, groups were observed for behaviour during a simulation that was part of a 15-minute modular intervention and tested for recollection afterwards. PARTICIPANTS: The 129 participants recruited for this study were medical students, who already had relevant experience treating patients. INTERVENTIONS: The experimental setting involved three 5-minute components: video, simulation, and debriefing. Different groups viewed videos involving different didactic concepts: one group observed a videotaped concrete example of a medical care team applying a CRM tool (example group), and one group observed a videotaped lecture on the same topic (lecture group). MAIN OUTCOME MEASURES: All simulations were videotaped and coded in detail for the occurrence of and time spent engaging in team behaviour and medical care. Questionnaires were administered before, immediately after, and two weeks after the intervention. We compared the groups' behaviour during the simulation (team cooperation and medical care), retention of knowledge from the training content, and results of the evaluation. RESULTS: Both groups exhibited most of the behaviours included in the content of the instructional videos during the simulations and recollected information 2 weeks later. The example group exhibited significantly more of the training content during the simulation and demonstrated better retention 2 weeks later. Although the example group spent more time on team coordination, there was no difference in the number of executed medical measures. CONCLUSION: Delivering CRM training in chunks of relatively short and highly standardised interventions appears feasible. In this study, the form of didactical presentation caused a difference in learning success between groups: a traditional lecture was outperformed by an instructional video demonstrating a practical example.

Crew resource management training in healthcare: a systematic review of intervention design, training conditions and evaluation.

OBJECTIVES: Crew resource management (CRM) training formats have become a popular method to increase patient safety by consideration of the role that human factors play in healthcare delivery. The purposes of this review were to identify what is subsumed under the label of CRM in a healthcare context and to determine how such training is delivered and evaluated. DESIGN: Systematic review of published literature. DATA SOURCES: PubMed, PsycINFO and ERIC were searched through 8 October 2018. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Individually constructed interventions for healthcare staff that were labelled as CRM training, or described as based on CRM principles or on aviation-derived human factors training. Only studies reporting both an intervention and results were included. DATA EXTRACTION AND SYNTHESIS: The studies were examined and coded for relevant passages. Characteristics regarding intervention design, training conditions and evaluation methods were analysed and summarised both qualitatively and quantitatively. RESULTS: Sixty-one interventions were included. 48% did not explain any keyword of their CRM intervention to a reproducible detail. Operating room teams and surgery, emergency medicine, intensive care unit staff and anaesthesiology came in contact most with a majority of the CRM interventions delivered in a 1-day or half-day format. Trainer qualification is reported seldomly. Evaluation methods and levels display strong variation. CONCLUSIONS: Critical topics were identified for the CRM training community and include the following: the need to agree on common terms and definitions for CRM in healthcare, standards of good practice for reporting CRM interventions and their effects, as well as the need for more research to establish non-educational criteria for success in the implementation of CRM in healthcare organisations.

Simulation centres in German hospitals and their organisational aspects: Expert survey on drivers and obstacles.

Background: Simulation trainings offer the opportunity to replicate parts of or entire processes of medical care in a controlled environment. Some hospitals operate simulation centres dedicated to training their staff. Which organisational factors support or impede the implementation of such units in hospitals? Methods: In an exploratory survey experts and decision makers in German hospitals were interviewed. The answers were evaluated qualitatively in order to identify patterns in argumentation. Among the eleven participants were practitioners heading simulation centres (n=4), managers or executives in charge of finances (n=2), medical directors or head physicians with disciplinary responsibility for medical personnel (n=3), and researchers who deal with simulation trainings in medicine (n=2). The interview partners were guaranteed confidentiality in order to allow for them to speak freely about the obstacles and weaknesses in their respective organisations. Results: The interviewees showed a very heterogeneous picture of the simulation trainings in their respective hospitals in terms of content as well as target groups. Asked about purpose and benefit of simulation centres, subgroups of the interviewees gave various arguments. Financing is comprised of subsidies, fees from external participants, and of vocational training budgets. Several obstacles for the implementation were mentioned such as insufficient error culture, deficient interaction of quality and risk management, high equipment costs, or staffing levels that are too low to schedule entire teams for vocational trainings. Conclusions: Patterns in argumentation could be identified that support the implementation and operation of simulation centres in hospitals. Yet strikingly enough there were no coherent arguments i.e. there was no uniform reasoning of aim and purpose of simulation centres. Furthermore, the survey indicated the need to approach quality- and risk management more holistically wherefore simulation centres could offer laboratory environments. All in all, the survey indicates that the assessment of success and economic benefits of simulation centres haven't yet been examined thoroughly.

Evaluation of simparteam - a needs-orientated team training format for obstetrics and neonatology.

INTRODUCTION: A standardized team-training program for healthcare professionals in obstetric units was developed based on an analysis of common causes for adverse events found in claims registries. The interdisciplinary and inter-professional training concept included both technical and non-technical skill training. Evaluation of the program was carried out in hospitals with respect to the immediate personal learning of participants and also regarding changes in safety culture. METHODS: Trainings in n=7 hospitals including n=270 participants was evaluated using questionnaires. These were administered at four points in time to staff from participating obstetric units: (1) 10 days ahead of the training (n=308), (2) on training day before (n=239), (3) right after training (n=248), and (4) 6 months after (n=188) the intervention. Questionnaires included several questions for technical and non-technical skills and the Hospital Survey on Patient Safety (HSOPS). RESULTS: Strong effects were found in the participants' perception of their own competence regarding technical skills and handling of emergencies. Small effects could be observed in the scales of the HSOPS questionnaire. Most effects differed depending on professional groups and hospitals. CONCLUSIONS: Integrated technical and team management training can raise employees' confidence with complex emergency management skills and processes. Some indications for improvements on the patient safety culture level were detected. Furthermore, differences between professional groups and hospitals were found, indicating the need for more research on contributing factors for patient safety and for the success of crew resource management (CRM) trainings.

The Impact of Symmetry: Explaining Contradictory Results Concerning Working Memory, Reasoning, and Complex Problem Solving.

Findings of studies on the unique effects of reasoning and working memory regarding complex problem solving are inconsistent. To find out if these inconsistencies are due to a lack of symmetry between the studies, we reconsidered the findings of three published studies on this issue, which resulted in conflicting conclusions regarding the inter-relations between reasoning, working memory, and complex problem solving. This was achieved by analysing so far unpublished problem solving data from the study of Bühner, Krumm, Ziegler, and Plücken (2006) (N= 124). One of the three published studies indicated unique effects of working memory and reasoning on complex problem solving using aggregated scores, a second study found no unique contribution of working memory using only figural scores, and a third study reported a unique influence only for reasoning using only numerical scores. Our data featured an evaluation of differences across content facets and levels of aggregation of the working memory scores. Path models showed that the results of the first study could not be replicated using content aggregated scores; the results of the second study could be replicated if only figural scores were used, and the results of the third study could be obtained by using only numerical scores. For verbal content, none of the published results could be replicated. This leads to the assumption that not only symmetry is an issue when correlating non-symmetrical data, but that content also has to be taken into account when comparing different studies on the same topic.