41 research outputs found

    Molecular mechanisms of cell death: recommendations of the Nomenclature Committee on Cell Death 2018.

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    Over the past decade, the Nomenclature Committee on Cell Death (NCCD) has formulated guidelines for the definition and interpretation of cell death from morphological, biochemical, and functional perspectives. Since the field continues to expand and novel mechanisms that orchestrate multiple cell death pathways are unveiled, we propose an updated classification of cell death subroutines focusing on mechanistic and essential (as opposed to correlative and dispensable) aspects of the process. As we provide molecularly oriented definitions of terms including intrinsic apoptosis, extrinsic apoptosis, mitochondrial permeability transition (MPT)-driven necrosis, necroptosis, ferroptosis, pyroptosis, parthanatos, entotic cell death, NETotic cell death, lysosome-dependent cell death, autophagy-dependent cell death, immunogenic cell death, cellular senescence, and mitotic catastrophe, we discuss the utility of neologisms that refer to highly specialized instances of these processes. The mission of the NCCD is to provide a widely accepted nomenclature on cell death in support of the continued development of the field

    Effects of eight neuropsychiatric copy number variants on human brain structure

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    Many copy number variants (CNVs) confer risk for the same range of neurodevelopmental symptoms and psychiatric conditions including autism and schizophrenia. Yet, to date neuroimaging studies have typically been carried out one mutation at a time, showing that CNVs have large effects on brain anatomy. Here, we aimed to characterize and quantify the distinct brain morphometry effects and latent dimensions across 8 neuropsychiatric CNVs. We analyzed T1-weighted MRI data from clinically and non-clinically ascertained CNV carriers (deletion/duplication) at the 1q21.1 (n = 39/28), 16p11.2 (n = 87/78), 22q11.2 (n = 75/30), and 15q11.2 (n = 72/76) loci as well as 1296 non-carriers (controls). Case-control contrasts of all examined genomic loci demonstrated effects on brain anatomy, with deletions and duplications showing mirror effects at the global and regional levels. Although CNVs mainly showed distinct brain patterns, principal component analysis (PCA) loaded subsets of CNVs on two latent brain dimensions, which explained 32 and 29% of the variance of the 8 Cohen’s d maps. The cingulate gyrus, insula, supplementary motor cortex, and cerebellum were identified by PCA and multi-view pattern learning as top regions contributing to latent dimension shared across subsets of CNVs. The large proportion of distinct CNV effects on brain morphology may explain the small neuroimaging effect sizes reported in polygenic psychiatric conditions. Nevertheless, latent gene brain morphology dimensions will help subgroup the rapidly expanding landscape of neuropsychiatric variants and dissect the heterogeneity of idiopathic conditions

    Goals of Care Conversations Documented by an Embedded Emergency Department-Palliative Care Team during COVID

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    Background: There has been growing interest around integrating palliative care (PC) into emergency department (ED) practice but concern about feasibility and impact. In 2020, as the COVID pandemic was escalating, our hospital's ED and PC leadership created a new service of PC clinicians embedded in the ED. Objectives: To describe the clinical work of the embedded ED-PC team, in particular what was discussed during goals of care conversations. Design: Prospective patient identification followed by retrospective electronic health record chart extraction and analysis. Settings/Subjects: Adult ED patients in an academic medical center in the United States. Measurements/Results: The embedded ED-PC team saw 159 patients, whose mean age was 77.5. Nearly all patients were admitted, 48.0% had confirmed or presumed COVID, and overall mortality was 29.1%. Of the patients seen, 58.5% had a serious illness conversation documented as part of the consult. The most common topics addressed were patient (or family) illness understanding (96%), what was most important (92%), and a clinical recommendation (91%). Clinicians provided a prognostic estimate in 57/93 (61.3%) of documented discussions. In the majority of cases where prognosis was discussed, it was described as poor. Conclusion: Specialist PC clinicians embedded in the ED can engage in high-quality goals of care conversations that have the potential to align patients' hospital trajectory with their preferences

    Morbidity and Mortality Conference in Emergency Medicine Residencies and the Culture of Safety

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    Introduction: Morbidity and mortality conferences (M+M) are a traditional part of residency training and mandated by the Accreditation Counsel of Graduate Medical Education. This study’s objective was to determine the goals, structure, and the prevalence of practices that foster strong safety cultures in the M+Ms of U.S. emergency medicine (EM) residency programs. Methods: The authors conducted a national survey of U.S. EM residency program directors. The survey instrument evaluated five domains of M+M (Organization and Infrastructure; Case Finding; Case Selection; Presentation; and Follow up) based on the validated Agency for Healthcare Research & Quality Safety Culture survey. Results: There was an 80% (151/188) response rate. The primary objectives of M+M were discussing adverse outcomes (53/151, 35%), identifying systems errors (47/151, 31%) and identifying cognitive errors (26/151, 17%). Fifty-six percent (84/151) of institutions have anonymous case submission, with 10% (15/151) maintaining complete anonymity during the presentation and 21% (31/151) maintaining partial anonymity. Forty-seven percent (71/151) of programs report a formal process to follow up on systems issues identified at M+M. Forty-four percent (67/151) of programs report regular debriefing with residents who have had their cases presented. Conclusion: The structure and goals of M+Ms in EM residencies vary widely. Many programs lack features of M+M that promote a non-punitive response to error, such as anonymity. Other programs lack features that support strong safety cultures, such as following up on systems issues or reporting back to residents on improvements. Further research is warranted to determine if M+M structure is related to patient safety culture in residency programs

    Morbidity and Mortality Conference in Emergency Medicine Residencies and the Culture of Safety

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    Introduction: Morbidity and mortality conferences (M+M) are a traditional part of residency training and mandated by the Accreditation Counsel of Graduate Medical Education. This study’s objective was to determine the goals, structure, and the prevalence of practices that foster strong safety cultures in the M+Ms of U.S. emergency medicine (EM) residency programs. Methods: The authors conducted a national survey of U.S. EM residency program directors. The survey instrument evaluated five domains of M+M (Organization and Infrastructure; Case Finding; Case Selection; Presentation; and Follow up) based on the validated Agency for Healthcare Research & Quality Safety Culture survey. Results: There was an 80% (151/188) response rate. The primary objectives of M+M were discussing adverse outcomes (53/151, 35%), identifying systems errors (47/151, 31%) and identifying cognitive errors (26/151, 17%). Fifty-six percent (84/151) of institutions have anonymous case submission, with 10% (15/151) maintaining complete anonymity during the presentation and 21% (31/151) maintaining partial anonymity. Forty-seven percent (71/151) of programs report a formal process to follow up on systems issues identified at M+M. Forty-four percent (67/151) of programs report regular debriefing with residents who have had their cases presented. Conclusion: The structure and goals of M+Ms in EM residencies vary widely. Many programs lack features of M+M that promote a non-punitive response to error, such as anonymity. Other programs lack features that support strong safety cultures, such as following up on systems issues or reporting back to residents on improvements. Further research is warranted to determine if M+M structure is related to patient safety culture in residency programs

    Emergency Department Patient Experience

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    Introduction: Patient experience with emergency department (ED) care is an expanding area of focus, and recent literature has demonstrated strong correlation between patient experience and meeting several ED and hospital goals. The objective of this study was to perform a systematic review of existing literature to identify specific factors most commonly identified as influencing ED patient experience. Methods: A literature search was performed, and articles were included if published in peer-reviewed journals, primarily focused on ED patient experience, employed observational or interventional methodology, and were available in English. After a structured screening process, 107 publications were included for data extraction. Result: Of the 107 included publications, 51 were published before 2011, 57% were conducted by American investigators, and 12% were published in nursing journals. The most commonly identified themes included staff-patient communication, ED wait times, and staff empathy and compassion. Conclusion: The most commonly identified drivers of ED patient experience include communication, wait times, and staff empathy; however, existing literature is limited. Additional investigation is necessary to further characterize ED patient experience themes and identify interventions that effectively improve these domains

    The next step to reducing emergency department (ED) crowding: Engaging specialist physicians.

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    BACKGROUND:Much work on reducing ED utilization has focused on primary care practices, but few studies have examined ED visits from patients followed by specialists, especially when the ED visit is related to the specialist's clinical practice. OBJECTIVE:To determine the proportion and characteristics of patients that utilized the ED for specialty-related diagnosis. METHODS:Retrospective, population-based, cohort study was conducted using information from electronic health records and billing database between January 2016 and December 2016. Patients who had seen a specialist during the last five years from the index ED visit date were included. The identification of ED visits attributable to specialists was based on the primary diagnosis of ED visits and the frequency of visit with specialists within a given timeframe. RESULTS:Approximately 28% of ED visits analyzed were attributable to specialists. ED visits attributed specialists were represented by older patients and occurred more during working hours and early days of week. The most common diagnoses related to ED visits attributed to specialists were Circulatory, Musculoskeletal, Skin, Breast and Mental. Multiple departments, subdivisions and specialists were involved with each ED visit. The number of specialists following the patients who visited the ED ranged from one to six and the number of departments/subdivisions ranged from one to four. Patients that used the ED often were more likely to belong to departments (OR = 1.53) and specialists (OR = 1.18) associated with high ED utilization patterns. CONCLUSION:Patients coming to the ED with specialty-related complaints are unique and require full engagement of the specialist and the specialty group. This study offers a new view of connections patients have with their specialists and engaging specialists both at department level and individual specialist level may be an important factor to reduce ED overcrowding
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