Age and its impact on crisis management performance and learning after simulation-based education by acute care physicians: a multicentre prospective cohort study.

BACKGROUND: Physiological changes associated with ageing could negatively impact the crisis resource management skills of acute care physicians. This study was designed to determine whether physician age impacts crisis resource management skills, and crisis resource management skills learning and retention using full-body manikin simulation training in acute care physicians. METHODS: Acute care physicians at two Canadian universities participated in three 8-min simulated crisis (pulseless electrical activity) scenarios. An initial crisis scenario (pre-test) was followed by debriefing with a trained facilitator and a second crisis scenario (immediate post-test). Participants returned for a third crisis scenario 3-6 months later (retention post-test). RESULTS: For the 48 participants included in the final analysis, age negatively correlated with baseline Global Rating Scale (GRS; r=-0.30, P<0.05) and technical checklist scores (r=-0.44, P<0.01). However, only years in practice and prior simulation experience, but not age, were significant in a subsequent stepwise regression analysis. Learning from simulation-based education was shown with a mean difference in scores from pre-test to immediate post-test of 2.28 for GRS score (P<0.001) and 1.69 for technical checklist correct score (P<0.001); learning was retained for 3-6 months. Only prior simulation experience was significantly correlated with a decreased change in learning (r=-0.30, P<0.05). CONCLUSIONS: A reduced amount of prior simulation training and increased years in practice, but not age on its own, were significant predictors of low baseline crisis resource management performance. Simulation-based education leads to crisis resource management learning that is well retained for 3-6 months, regardless of age or years in practice.

Death determination by neurologic criteria-what do families understand?

PURPOSE: Currently, there is little empirical data on family understanding about brain death and death determination. The purpose of this study was to describe family members' (FMs') understanding of brain death and the process of determining death in the context of organ donation in Canadian intensive care units (ICUs). METHODS: We conducted a qualitative study using semistructured, in-depth interviews with FMs who were asked to make an organ donation decision on behalf of adult or pediatric patients with death determination by neurologic criteria (DNC) in Canadian ICUs. RESULTS: From interviews with 179 FMs, six main themes emerged: 1) state of mind, 2) communication, 3) DNC may be counterintuitive, 4) preparation for the DNC clinical assessment, 5) DNC clinical assessment, and 6) time of death. Recommendations on how clinicians can help FMs to understand and accept DNC through communication at key moments were described including preparing FMs for death determination, allowing FMs to be present, and explaining the legal time of death, combined with multimodal strategies. For many FMs, understanding of DNC unfolded over time, facilitated with repeated encounters and explanation, rather than during a single meeting. CONCLUSION: Family members' understanding of brain death and death determination represented a journey that they reported in sequential meeting with health care providers, most notably physicians. Modifiable factors to improve communication and bereavement outcomes during DNC include attention to the state of mind of the family, pacing and repeating discussions according to families' expressed understanding, and preparing and inviting families to be present for the clinical determination including apnea testing. We have provided family-generated recommendations that are pragmatic and can be easily implemented.

RéSUMé: OBJECTIF: À l'heure actuelle, il y a peu de données empiriques sur la compréhension des familles de la mort cérébrale et de la détermination du décès. Le but de cette étude était de décrire la compréhension des membres de la famille de la mort cérébrale et du processus de détermination du décès dans le contexte du don d'organes dans les unités de soins intensifs (USI) canadiennes. MéTHODE: Nous avons mené une étude qualitative à l'aide d'entrevues semi-structurées et approfondies avec des membres de la famille à qui on a demandé de prendre une décision de don d'organes au nom de patients adultes ou pédiatriques dont le décès avait été déterminé selon des critères neurologiques (DCN) dans les unités de soins intensifs canadiennes. RéSULTATS: Sur la base d'entrevues avec 179 membres de la famille, six thèmes principaux ont émergé : 1) l'état d'esprit, 2) la communication, 3) le DCN peut être contre-intuitif, 4) la préparation à l'évaluation clinique pour un DCN, 5) l'évaluation clinique pour un DCN et 6) le moment du décès. Des recommandations sur la façon dont les cliniciens peuvent aider les membres de la famille à comprendre et à accepter un DCN par la communication à des moments clés ont été décrites, y compris la préparation des membres de la famille à la détermination du décès, l'autorisation de la présence des membres de la famille et l'explication de l'heure légale du décès, combinées à des stratégies multimodales. Pour de nombreux membres de la famille, la compréhension du DCN s'est développée au fil du temps et a été facilitée par des rencontres et des explications répétées plutôt qu'au cours d'une seule rencontre. CONCLUSION: La compréhension qu'ont les membres de la famille de la mort cérébrale et de la détermination du décès représente un parcours qu'ils ont décrit lors de rencontres successives avec des acteurs de soins de santé, et particulièrement avec des médecins. Les facteurs modifiables pour améliorer la communication et les issues du deuil pendant un DCN comprennent l'attention portée à l'état d'esprit de la famille, le rythme et la répétition des discussions en fonction de la compréhension exprimée par les familles, ainsi que la préparation et l'invitation des familles à être présentes pour la détermination clinique, y compris pendant le test d'apnée. Nous avons fourni des recommandations familiales qui sont pragmatiques et peuvent être facilement mises en œuvre.

The experiences of family members of deceased organ donors and suggestions to improve the donation process: a qualitative study.

BACKGROUND: Decisions about organ donation are stressful for family members of potential organ donors. We sought to comprehensively explore the donation process from interviews conducted with family members of patients admitted to pediatric and adult intensive care units in Canada. METHODS: We conducted a qualitative study using semistructured, in-depth interviews with 271 family members asked to make an organ donation decision. We recruited participants from all provinces with an organ donation organization (n = 10), and analyzed themes using a modified grounded theory approach. On the basis of these interviews, suggestions were made by researchers and family members on how to improve the process of organ donation. RESULTS: We identified 3 main themes and 9 subthemes. Families need more comprehensive support around the time of donation, including having access to someone with shared experiences, support during specific moments as needed and better support during critical transitions (e.g., when the donor body goes to the operating room). The theme of better connection to recipient(s) included receiving information about the donation surgery (e.g., which organs were recovered), establishing connection with recipients (e.g., via social networks or letters) and planned encounters. Support after donation, such as updates on organ transplantation, early mental health checks and continued connection to donor organizations, could be improved. We derived 20 suggestions for improving the organ donation process, derived from interviews with family members of pediatric and adult organ donors. INTERPRETATION: We found gaps in family support during end-of-life and donation care. Feelings of abandonment, lack of support and poor-to-little follow-up provide the empirical findings needed for hospitals and organ donor organizations to provide better support to donor families.

Setting and Titrating Positive End-Expiratory Pressure.

Although maintaining some amount of positive end-expiratory pressure (PEEP) seems essential, selecting and titrating a specific level for patients with ARDS remains challenging despite extensive research on the subject. Although an "open lung" approach to ventilation is popular and has some degree of biological plausibility, it is not without risk. Furthermore, there is no clear evidence-based guidance regarding initial PEEP settings or how to titrate them early in the course of the illness. Many busy clinicians use a "one-size-fits-all" approach based on local medical culture, but an individualized approach has the potential to offer significant benefit. Here we present a pragmatic approach based on simple measurements available on all ventilators, focused on achieving balance between the potential risks and benefits of PEEP. Acknowledging "best PEEP" as an impossible goal, we aim for a straightforward method to achieve "better PEEP."

Noninvasive respiratory support following extubation in critically ill adults: a systematic review and network meta-analysis.

PURPOSE: Systematic review and network meta-analysis to investigate the efficacy of noninvasive respiratory strategies, including noninvasive positive pressure ventilation (NIPPV) and high-flow nasal cannula (HFNC), in reducing extubation failure among critically ill adults. METHODS: We searched databases from inception through October 2021 for randomized controlled trials (RCTs) evaluating noninvasive respiratory support therapies (NIPPV, HFNC, conventional oxygen therapy, or a combination of these) following extubation in critically ill adults. Two reviewers performed screening, full text review, and extraction independently. The primary outcome of interest was reintubation. We used GRADE to rate the certainty of our findings. RESULTS: We included 36 RCTs (6806 patients). Compared to conventional oxygen therapy, NIPPV (OR 0.65 [95% CI 0.52-0.82]) and HFNC (OR 0.63 [95% CI 0.45-0.87]) reduced reintubation (both moderate certainty). Sensitivity analyses showed that the magnitude of the effect was highest in patients with increased baseline risk of reintubation. As compared to HFNC, no difference in incidence of reintubation was seen with NIPPV (OR 1.04 [95% CI 0.78-1.38], low certainty). Compared to conventional oxygen therapy, neither NIPPV (OR 0.8 [95% CI 0.61-1.04], moderate certainty) or HFNC (OR 0.9 [95% CI 0.66-1.24], low certainty) reduced short-term mortality. Consistent findings were demonstrated across multiple subgroups, including high- and low-risk patients. These results were replicated when evaluating noninvasive strategies for prevention (prophylaxis), but not in rescue (application only after evidence of deterioration) situations. CONCLUSIONS: Our findings suggest that both NIPPV and HFNC reduced reintubation in critically ill adults, compared to conventional oxygen therapy. NIPPV did not reduce incidence of reintubation when compared to HFNC. These findings support the preventative application of noninvasive respiratory support strategies to mitigate extubation failure in critically ill adults, but not in rescue conditions.

A new experimental design to study inflammation-related versus non-inflammation-related depression in mice.

BACKGROUND: Major depressive disorder (MDD) represents a major public health concern, particularly due to its steadily rising prevalence and the poor responsiveness to standard antidepressants notably in patients afflicted with chronic inflammatory conditions, such as obesity. This highlights the need to improve current therapeutic strategies, including by targeting inflammation based on its role in the pathophysiology and treatment responsiveness of MDD. Nevertheless, dissecting the relative contribution of inflammation in the development and treatment of MDD remains a major issue, further complicated by the lack of preclinical depression models suitable to experimentally dissociate inflammation-related vs. inflammation-unrelated depression. METHODS: While current models usually focus on one particular MDD risk factor, we compared in male C57BL/6J mice the behavioral, inflammatory and neurobiological impact of chronic exposure to high-fat diet (HFD), a procedure known to induce inflammation-related depressive-like behaviors, and unpredictable chronic mild stress (UCMS), a stress-induced depression model notably renowned for its responsivity to antidepressants. RESULTS: While both paradigms induced neurovegetative, depressive-like and anxiety-like behaviors, inflammation and downstream neurobiological pathways contributing to inflammation-driven depression were specifically activated in HFD mice, as revealed by increased circulating levels of inflammatory factors, as well as brain expression of microglial activation markers and enzymes from the kynurenine and tetrahydrobiopterin (BH4) pathways. In addition, serotoninergic and dopaminergic systems were differentially impacted, depending on the experimental condition. CONCLUSIONS: These data validate an experimental design suitable to deeply study the mechanisms underlying inflammation-driven depression comparatively to non-inflammatory depression. This design could help to better understand the pathophysiology of treatment resistant depression.

Mapping the Expert Mind: Integration Method for Revising the ACES Medical Simulation Curriculum.

PURPOSE: This article shares our experience developing an integrated curriculum for the ACES (Acute Critical Event Simulation) program. The purpose of the ACES program is to ensure that health care providers develop proficiency in the early management of critically ill patients. The program includes multiple different types of educational interventions (mostly simulation-based) and targets both specialty and family physicians practicing in tertiary and community hospitals. METHODS: To facilitate integration between different educational interventions, we developed a knowledge repository consisting of cognitive sequence maps that make explicit the flow of cognitive activities carried out by experts facing different situations - the sequence maps then serving as the foundation upon which multimodal simulation scenarios would be built. To encourage participation of experts, we produced this repository as a peer-reviewed ebook. Five national organizations collaborated with the Royal College of Physicians and Surgeons of Canada to identify and recruit expert authors and reviewers. Foundational chapters, centered on goals/interventions, were first developed to comprehensively address most tasks conducted in the early management of a critically ill patient. Tasks from the foundational chapters were then used to complete the curriculum with situations. The curriculum development consisted of two-phases each followed by a peer-review process. In the first phase, focus groups using web-conferencing were conducted to map clinical practice approaches and in the second, authors completed the body of the chapter (e.g., introduction, definition, concepts, etc.) then provided a more detailed description of each task linked to supporting evidence. RESULTS: Sixty-seven authors and thirty-five peer reviewers from various backgrounds (physicians, pharmacists, nurses, respiratory therapists) were recruited. On average, there were 32 tasks and 15 situations per chapter. The average number of focus group meetings needed to develop a map (one map per chapter) was 6.7 (SD ± 3.6). We found that the method greatly facilitated integration between different chapters especially for situations which are not limited to a single goal or intervention. For example, almost half of the tasks of the Hypercapnic Ventilatory Failure chapter map were borrowed from other maps with some modifications, which significantly reduced the authors' workload and enhanced content integration. This chapter was also linked to 6 other chapters. CONCLUSIONS: To facilitate curriculum integration, we have developed a knowledge repository consisting of cognitive maps which organize time-sensitive tasks in the proper sequence; the repository serving as the foundation upon which other educational interventions are then built. While this methodology is demanding, authors welcomed the challenge given the scholarly value of their work, thus creating an interprofessional network of educators across Canada.

Patient-centred and family-centred care of critically ill patients who are potential organ donors: a qualitative study protocol of family member perspectives.

INTRODUCTION: In a patient-centred and family-centred approach to organ donation, compassion is paramount. Recent guidelines have called for more research, interventions and approaches aimed at improving and supporting the families of critically ill patients. The objective of this study is to help translate patient-centred and family-centred care into practice in deceased organ donation. METHODS AND ANALYSIS: This will be a national, qualitative study of family members of deceased organ donors in Canada. We will include family members who had been approached regarding an organ donation decision, including those who agreed and declined, at least 2 months and no later than 3 years after the patients' death. Data collection and analysis is ongoing and will continue until September 2020 to include approximately 250 participants. Family members will be identified and recruited from provincial organ donation organisation databases. Four experienced qualitative researchers will conduct telephone interviews in English or French with audio-recording for subsequent transcription. The research team will develop a codebook iteratively through this process using inductive methods, thus generating themes directly from the dataset. ETHICS AND DISSEMINATION: Local research ethics boards (REB) at all participating sites across Canada have approved this protocol. The main REB involved is the Ottawa Health Science Network REB. Data collection began in August 2018. Publication of results is anticipated in 2021. Study findings will help improve healthcare provider competency in caring for potential organ donors and their families and improve organ donation consent rates. Findings will also help with the development of educational materials for a competency-based curriculum for critical care residents.

Evaluating the Implementation of Ontario's Organ and Tissue Donation Physician Leadership Model: Mapping a Way Forward.

BACKGROUND: The demand for solid organ transplantation has spurred countries around the world to search for innovative policies and practices to increase the supply of organs. Spain has become a global reference point for organ donation with the highest transplantation rates. In Ontario, Canada the Ontario Trillium Gift of Life (TGLN) has sought to replicate some of the successes in Spain. In particular, TGLN's implementation of the Physician Leadership Model has been viewed as a promising strategy to improve donation conversion rates. OBJECTIVE: The objective of this study was to evaluate the implementation of TGLNs (TGLN) Physician Leadership Model by examining critical implementation process variables (education/training, communication, satisfaction, participation and reach). METHODS: This mixed-method implementation evaluation included data from all members of the Physician Leadership Model including the Chief Medical Officer, five Regional Medical Leads (RMLs), and the 52 Hospital Donation Physicians (HDPs). Social Network Analysis (SNA) surveys were sent to all 52 HDPs and yielded an 85% rate. Analysis included constructing sociograms and qualitatively analyzing interviews. RESULTS: TGLN's PLM was poised for success by utilizing the existing RMLs' network as a foundation. The social network analysis measures, particularly participation and reach, indicated the PLM was quite dense (ie, the degree to which members are connected) at baseline. HDPs reported communication to be facilitated by their connections to their RMLs. Early evaluative data indicated that lack of education and training was viewed by HDPs as a barrier, and thus more capacity would need to be directed to this issue. Overall, HDPs reported that various intended outcomes were being met. CONCLUSION: We have demonstrated that an implementation evaluation helps us to understand which elements of the PLM were successful and which elements required immediate attention. This evaluation helped to highlight the successes and challenges in implementing the TGLN Physician Leadership Model in Ontario. Social network analysis of publicly funded capacity building systems has been identified as a promising area for health program evaluation to answer questions at a system level, such as identifying service provisions among information exchange networks and ultimately better health care.

Prognostic accuracy of the Hamilton Early Warning Score (HEWS) and the National Early Warning Score 2 (NEWS2) among hospitalized patients assessed by a rapid response team.

BACKGROUND: Rapid response teams (RRTs) respond to hospitalized patients experiencing clinical deterioration and help determine subsequent management and disposition. We sought to evaluate and compare the prognostic accuracy of the Hamilton Early Warning Score (HEWS) and the National Early Warning Score 2 (NEWS2) for prediction of in-hospital mortality following RRT activation. We secondarily evaluated a subgroup of patients with suspected infection. METHODS: We retrospectively analyzed prospectively collected data (2012-2016) of consecutive RRT patients from two hospitals. The primary outcome was in-hospital mortality. We calculated the number needed to examine (NNE), which indicates the number of patients that need to be evaluated in order to detect one future death. RESULTS: Five thousand four hundred ninety-one patients were included, of whom 1837 (33.5%) died in-hospital. Mean age was 67.4 years, and 51.6% were male. A HEWS above the low-risk threshold (≥ 5) had a sensitivity of 75.9% (95% confidence interval (CI) 73.9-77.9) and specificity of 67.6% (95% CI 66.1-69.1) for mortality, with a NNE of 1.84. A NEWS2 above the low-risk threshold (≥ 5) had a sensitivity of 84.5% (95% CI 82.8-86.2), and specificity of 49.0% (95% CI: 47.4-50.7), with a NNE of 2.20. The area under the receiver operating characteristic curve (AUROC) was 0.76 (95% CI 0.75-0.77) for HEWS and 0.72 (95% CI: 0.71-0.74) for NEWS2. Among suspected infection patients (n = 1708), AUROC for HEWS was 0.79 (95% CI 0.76-0.81) and for NEWS2, 0.75 (95% CI 0.73-0.78). CONCLUSIONS: The HEWS has comparable clinical accuracy to NEWS2 for prediction of in-hospital mortality among RRT patients.

Comparison of simulation debriefs with traditional needs assessment methods: a qualitative exploratory study in a critical care community setting.

OBJECTIVE: To better understand the potential of a needs assessment approach using qualitative data from manikin-based and virtual patient simulation debriefing sessions compared with traditional data collection methods (ie, focus groups and interviews). DESIGN: Original data from simulation debrief sessions was compared and contrasted with data from an earlier assessment of critical care needs in a community setting (using focus groups and interviews), thus undertaking secondary analysis of data. Time and cost data were also examined. Debrief sessions were coded using deductive and inductive techniques. Matrices were used to explore the commonalities, differences and emergent findings across the methods. SETTING: Critical care unit in a community hospital setting. RESULTS: Interviews and focus groups yielded 684 and 647 min of audio-recordings, respectively. The manikin-based debrief recordings averaged 22 min (total=130 min) and virtual patient debrief recordings averaged 31 min (total=186 min). The approximate cost for the interviews and focus groups was $13 560, for manikin-based simulation debriefs was $4030 and for the virtual patient debriefs was $3475. Fifteen of 20 total themes were common across the simulation debriefs and interview/focus group data. Simulation-specific themes were identified, including fidelity (environment, equipment and psychological) and the multiple roles of the simulation instructor (educative, promoting reflection and assessing needs). CONCLUSIONS: Given current fiscal realities, the dual benefit of being educative and identifying needs is appealing. While simulation is an innovative method to conduct needs assessments, it is important to recognise that there are trade-offs with the selection of methods.

A Multicenter Qualitative Investigation of the Experiences and Perspectives of Substitute Decision Makers Who Underwent Organ Donation Decisions.

BACKGROUND: Organ donation research has centered on improving donation rates rather than focusing on the experience and impact on substitute decision makers. The purpose of this study was to document donor and nondonor family experiences, as well as lasting impacts of donation. METHODS: We used a qualitative exploratory design. Semistructured interviews of 27 next-of-kin decision makers were conducted, transcribed verbatim, and entered into qualitative software. We analyzed the process-based reflections using inductive coding and thematic analysis techniques. RESULTS: Four broad and interrelated themes emerged from the data: empathetic care, information needs, donation decision, and impact and follow-up. The donation experience left lasting impacts on family members due to lingering, unanswered questions. Suggested solutions to improve the donor experience for families included providers employing multimodal communication, ensuring a proper setting for family meetings, and the presence of a support person. DISCUSSION: We now have improved our understanding of the donation process from the perspective of and final impression from the next of kin. To our knowledge, this is the largest cohort interviewed in Canada. We have explored families' experiences, which included but did not end with donation. We learned that despite being appreciative of nurses, physicians, and organ and tissue donation coordinators, family members were often troubled by unanswered questions. CONCLUSION: This study described donor and nondonor family experiences with donation as well as lasting impacts. Addressing unanswered questions should be done in a place sufficiently remote from the donation event to enhance the family members' understanding and well-being.

A multicentre investigation of organ and tissue donation education for critical care residents.

PURPOSE: To describe critical care medicine residents' training, expertise, and skills regarding organ and tissue donation processes and procedures. METHODS: We undertook a qualitative multicentre study and employed a purposive sample of program directors, physicians, nurses, residents, and organ donation leaders from all nine academic intensive care unit (ICU) training centres (five adult, four pediatric) in Ontario (n = 71). Interviews, conducted by telephone between December 2015 and March 2016, were audio-recorded and transcribed verbatim. Data collection and analysis were performed using an iterative process and continued until saturation was achieved. RESULTS: Five main themes were identified: 1) gaps in residents' knowledge for both neurologic determination of death (NDD) and circulatory determination of death (DCD) cases; 2) commitment to the provision of organ and tissue donation training; 3) limited experiential learning (NDD and DCD); 4) challenges related to the provision of training on organ donation and need for a standardized curriculum; and 5) communication with family members. Overall, this study showed system-level gaps in training resulting from the lack of a standardized provincial curriculum on organ donation. CONCLUSIONS: Qualitative data corroborated that residents need more exposure to clinical cases, especially regarding DCD donors. A standardized education curriculum would be beneficial for all residents within the ICU. Developing a better shared understanding of the donation process will improve team communication and performance, translate into a better end-of-life experience for families, and potentially result in increased donation rates.

Does the age of acute care physicians impact their (1) crisis management performance and (2) learning after simulation-based education? A protocol for a multicentre prospective cohort study in Toronto and Ottawa, Canada.

INTRODUCTION: The proportion of older acute care physicians (ACPs) has been steadily increasing. Ageing is associated with physiological changes and prospective research investigating how such age-related physiological changes affect clinical performance, including crisis resource management (CRM) skills, is lacking. There is a gap in the literature on whether physician's age influences baseline CRM performance and also learning from simulation. We aim to investigate whether ageing is associated with baseline CRM skills of ACPs (emergency, critical care and anaesthesia) using simulated crisis scenarios and to assess whether ageing influences learning from simulation-based education. METHODS AND ANALYSIS: This is a prospective cohort multicentre study recruiting ACPs from the Universities of Toronto and Ottawa, Canada. Each participant will manage an advanced cardiovascular life support crisis-simulated scenario (pretest) and then be debriefed on their CRM skills. They will then manage another simulated crisis scenario (immediate post-test). Three months after, participants will return to manage a third simulated crisis scenario (retention post-test). The relationship between biological age and chronological age will be assessed by measuring the participants CRM skills and their ability to learn from high-fidelity simulation. ETHICS AND DISSEMINATION: This protocol was approved by Sunnybrook Health Sciences Centre Research Ethics Board (REB Number 140-2015) and the Ottawa Health Science Network Research Ethics Board (#20150173-01H). The results will be disseminated in a peer-reviewed journal and at scientific meetings. TRIAL REGISTRATION NUMBER: NCT02683447; Pre-results.

Understanding of evaluation capacity building in practice: a case study of a national medical education organization.

INTRODUCTION: Evaluation capacity building (ECB) is a topic of great interest to many organizations as they face increasing demands for accountability and evidence-based practices. ECB is about building the knowledge, skills, and attitudes of organizational members, the sustainability of rigorous evaluative practices, and providing the resources and motivations to engage in ongoing evaluative work. There exists a solid foundation of theoretical research on ECB, however, understanding what ECB looks like in practice is relatively thin. Our purpose was to investigate what ECB looks like firsthand within a national medical educational organization. METHODS: The context for this study was the Acute Critical Events Simulation (ACES) organization in Canada, which has successfully evolved into a national educational program, driven by physicians. We conducted an exploratory qualitative study to better understand and describe ECB in practice. In doing so, interviews were conducted with program leaders and instructors so as to gain a richer understanding of evaluative processes and practices. RESULTS: A total of 21 individuals participated in the semistructured interviews. Themes from our qualitative data analysis included the following: evaluation knowledge, skills, and attitudes, use of evaluation findings, shared evaluation beliefs and commitment, evaluation frameworks and processes, and resources dedicated to evaluation. CONCLUSION: The national ACES organization was a useful case study to explore ECB in practice. The ECB literature provided a solid foundation to understand the purpose and nuances of ECB. This study added to the paucity of studies focused on examining ECB in practice. The most important lesson learned was that the organization must have leadership who are intrinsically motivated to employ and use evaluation data to drive ongoing improvements within the organization. Leaders who are intrinsically motivated will employ risk taking when evaluation practices and processes may be somewhat unfamiliar. Creating and maintaining a culture of data use and ongoing inquiry have enabled national ACES to achieve a sustainable evaluation practice.

Hypoxemic Respiratory Failure from Acute Respiratory Distress Syndrome Secondary to Leptospirosis.

Acute respiratory distress syndrome (ARDS), characterized by hypoxemic respiratory failure, is associated with a mortality of 30-50% and is precipitated by both direct and indirect pulmonary insults. Treatment is largely supportive, consisting of lung protective ventilation and thereby necessitating Intensive Care Unit (ICU) admission. The most common precipitant is community-acquired bacterial pneumonia, but other putative pathogens include viruses and fungi. On rare occasions, ARDS can be secondary to tropical disease. Accordingly, a history should include travel to endemic regions. Leptospirosis is a zoonotic disease most common in the tropics and typically associated with mild pulmonary complications. We describe a case of a 25-year-old male with undiagnosed leptospirosis, presenting with fever and severe hypoxemic respiratory failure, returning from a Costa Rican holiday. There was no other organ failure. He was intubated and received lung protective ventilation. His condition improved after ampicillin and penicillin G were added empirically. This case illustrates the rare complication of ARDS from leptospirosis, the importance of taking a travel history, and the need for empiric therapy because of diagnostic delay.

Adipocyte cannabinoid receptor CB1 regulates energy homeostasis and alternatively activated macrophages.

Dysregulated adipocyte physiology leads to imbalanced energy storage, obesity, and associated diseases, imposing a costly burden on current health care. Cannabinoid receptor type-1 (CB1) plays a crucial role in controlling energy metabolism through central and peripheral mechanisms. In this work, adipocyte-specific inducible deletion of the CB1 gene (Ati-CB1-KO) was sufficient to protect adult mice from diet-induced obesity and associated metabolic alterations and to reverse the phenotype in already obese mice. Compared with controls, Ati-CB1-KO mice showed decreased body weight, reduced total adiposity, improved insulin sensitivity, enhanced energy expenditure, and fat depot-specific cellular remodeling toward lowered energy storage capacity and browning of white adipocytes. These changes were associated with an increase in alternatively activated macrophages concomitant with enhanced sympathetic tone in adipose tissue. Remarkably, these alterations preceded the appearance of differences in body weight, highlighting the causal relation between the loss of CB1 and the triggering of metabolic reprogramming in adipose tissues. Finally, the lean phenotype of Ati-CB1-KO mice and the increase in alternatively activated macrophages in adipose tissue were also present at thermoneutral conditions. Our data provide compelling evidence for a crosstalk among adipocytes, immune cells, and the sympathetic nervous system (SNS), wherein CB1 plays a key regulatory role.

Exploring the components of physician volunteer engagement: a qualitative investigation of a national Canadian simulation-based training programme.

OBJECTIVES: Conceptual clarity on physician volunteer engagement is lacking in the medical literature. The aim of this study was to present a conceptual framework to describe the elements which influence physician volunteer engagement and to explore volunteer engagement within a national educational programme. SETTING: The context for this study was the Acute Critical Events Simulation (ACES) programme in Canada, which has successfully evolved into a national educational programme, driven by physician volunteers. From 2010 to 2014, the programme recruited 73 volunteer healthcare professionals who contributed to the creation of educational materials and/or served as instructors. METHOD: A conceptual framework was constructed based on an extensive literature review and expert consultation. Secondary qualitative analysis was undertaken on 15 semistructured interviews conducted from 2012 to 2013 with programme directors and healthcare professionals across Canada. An additional 15 interviews were conducted in 2015 with physician volunteers to achieve thematic saturation. Data were analysed iteratively and inductive coding techniques applied. RESULTS: From the physician volunteer data, 11 themes emerged. The most prominent themes included volunteer recruitment, retention, exchange, recognition, educator network and quasi-volunteerism. Captured within these interrelated themes were the framework elements, including the synergistic effects of emotional, cognitive and reciprocal engagement. Behavioural engagement was driven by these factors along with a cue to action, which led to contributions to the ACES programme. CONCLUSION: This investigation provides a preliminary framework and supportive evidence towards understanding the complex construct of physician volunteer engagement. The need for this research is particularly important in present day, where growing fiscal constraints create challenges for medical education to do more with less.

Ebola preparedness: a rapid needs assessment of critical care in a tertiary hospital.

BACKGROUND: The current outbreak of Ebola has been declared a public health emergency of international concern. We performed a rigorous and rapid needs assessment to identify the desired results, the gaps in current practice, and the barriers and facilitators to the development of solutions in the provision of critical care to patients with suspected or confirmed Ebola. METHODS: We conducted a qualitative study with an emergent design at a tertiary hospital in Ontario, Canada, recently designated as an Ebola centre, from Oct. 21 to Nov. 7, 2014. Participants included physicians, nurses, respiratory therapists, and staff from infection control, housekeeping, waste management, administration, facilities, and occupational health and safety. Data collection included document analysis, focus groups, interviews and walk-throughs of critical care areas with key stakeholders. RESULTS: Fifteen themes and 73 desired results were identified, of which 55 had gaps. During the study period, solutions were implemented to fully address 8 gaps and partially address 18 gaps. Themes identified included the following: screening; response team activation; personal protective equipment; postexposure to virus; patient placement, room setup, logging and signage; intrahospital patient movement; interhospital patient movement; critical care management; Ebola-specific diagnosis and treatment; critical care staffing; visitation and contacts; waste management, environmental cleaning and management of linens; postmortem; conflict resolution; and communication. INTERPRETATION: This investigation identified widespread gaps across numerous themes; as such, we have been able to develop a set of credible and measureable results. All hospitals need to be prepared for contact with a patient with Ebola, and the preparedness plan will need to vary based on local context, resources and site designation.