703 research outputs found

    Discourse on behavioural science in times of COVID-19: the two distinct and divisive perceptions that exist in the media and among the public

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    Drawing on mixed-methods research, Jet Sanders, Alessia Tosi, Sandra Obradovic, Ilaria Miligi and Liam Delaney found behavioural science to be a divisive topic in UK newspaper articles and on Twitter. They reviewed newspaper and social media discourses on behavioural science in the UK’s COVID-19 response, with a view to identify the role of transparency and trust in science actors in this high-stake context. Based on their findings, they recommend that greater efforts are made to clarify both the function of a behavioural scientist in a policy context and the diversity of approaches taken toward behavioural science to avoid media divisiveness in future emergencies

    Climbing the vertebrate branch of U1A/U2B″ protein evolution

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    In the vertebrate lineage of the U1A/U2B″/SNF protein family, the U1A and U2B″ proteins bind to RNA stem–loops in the U1 or U2 snRNPs, respectively. However, their specialization is fairly recent, as they evolved from a single ancestral protein. The progress of their specialization (subfunctionalization) can be monitored by the amino acid sequence changes that give rise to their modern RNA-binding specificity. Using ancestral sequence reconstruction to predict the intermediates on the evolutionary branch, a probable path of sequential changes is defined for U1A and U2B″. The RNA-binding affinity for U1A/U2B″ protein ancestors was measured using modern U1 and U2 snRNA stem–loops and RNA stem–loop variants to understand how the proteins’ RNA specificities evolved

    Potential Impact of the 2016 Consensus Definitions of Sepsis and Septic Shock on Future Sepsis Research

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    V. Pettilä on työryhmän ARISE Investigators jäsen.Study objective: The influence of the Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3) on the conduct of future sepsis research is unknown. We seek to examine the potential effect of the new definitions on the identification and outcomes of patients enrolled in a sepsis trial. Methods: This was a post hoc analysis of the Australasian Resuscitation in Sepsis Evaluation (ARISE) trial of early goal-directed therapy that recruited 1,591 adult patients presenting to the emergency department (ED) with early septic shock diagnosed by greater than or equal to 2 systemic inflammatory response syndrome criteria and either refractory hypotension or hyperlactatemia. The proportion of participants who would have met the Sepsis-3 criteria for quick Sequential Organ Failure Assessment (qS0FA) score, sepsis (an increased Sequential Organ Failure Assessment score >= 2 because of infection) and septic shock before randomization, their baseline characteristics, interventions delivered, and mortality were determined. Results: There were 1,139 participants who had a qSOFA score of greater than or equal to 2 at baseline (71.6% [95% confidence interval [Cl) 69.4% to 73.8%]). In contrast, 1,347 participants (84.7% [95% CI 82.9% to 86.4%]) met the Sepsis-3 criteria for sepsis. Only 1,010 participants were both qSOFA positive and met the Sepsis-3 criteria for sepsis (63.5% [95% CI 61.1% to 65.8%]). The Sepsis-3 definition for septic shock was met at baseline by 203 participants (12.8% [95% CI 11.2% to 14.5%]), of whom 175 (86.2% [95% CI 81.5% to 91.0%]) were also qSOFA positive. Ninety-day mortality for participants fulfilling the Sepsis-3 criteria for sepsis and septic shock was 20.4% (95% CI 18.2% to 22.5%) (274/1,344) and 29.6% (95% CI 23.3% to 35.8% [60/203]) versus 9.4% (95% CI 5.8% to 13.1%) (23/244) and 17.1% (95% CI 15.1% to 19.1% [237/1,388]), respectively, for participants not meeting the criteria (risk differences 11.0% [95% CI 6.2% to 14.8%] and 12.5% [95% CI 6.3% to 19.4%], respectively). Conclusion: Most ARISE participants did not meet the Sepsis-3 definition for septic shock at baseline. However, the majority fulfilled the new sepsis definition and mortality was higher than for participants not fulfilling the criteria. A quarter of participants meeting the new sepsis definition did not fulfill the qSOFA screening criteria, potentially limiting its utility as a screening tool for sepsis trials with patients with suspected infection in the ED. The implications of the new definitions for patients not eligible for recruitment into the ARISE trial are unknown.Peer reviewe

    Fluids or vasopressors for the initial resuscitation of septic shock

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    Intravenous fluid resuscitation is recommended first-line treatment for sepsis-associated hypotension and/or hypoperfusion. The rationale is to restore circulating volume and optimize cardiac output in the setting of shock. Nonetheless, there is limited high-level evidence to support this practice. Over the past decade emerging evidence of harm associated with large volume fluid resuscitation among patients with septic shock has led to calls for a more conservative approach. Specifically, clinical trials undertaken in Africa have found harm associated with initial fluid resuscitation in the setting of infection and hypoperfusion. While translating these findings to practice in other settings is problematic, there has been a re-appraisal of current practice with some recommending earlier use of vasopressors rather than repeated fluid boluses as an alternative to restore perfusion in septic shock. There is consequently uncertainty and variation in practice. The question of fluids or vasopressors for initial resuscitation in septic shock is the subject of international multicentre clinical trials

    Lessons From the UK's Lockdown: Discourse on Behavioural Science in Times of COVID-19

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    In recent years behavioural science has quickly become embedded in national level governance. As the contributions of behavioural science to the UK's COVID-19 response policies in early 2020 became apparent, a debate emerged in the British media about its involvement. This served as a unique opportunity to capture public discourse and representation of behavioural science in a fast-track, high-stake context. We aimed at identifying elements which foster and detract from trust and credibility in emergent scientific contributions to policy making. With this in mind, in Study 1 we use corpus linguistics and network analysis to map the narrative around the key behavioural science actors and concepts which were discussed in the 647 news articles extracted from the 15 most read British newspapers over the 12-week period surrounding the first hard UK lockdown of 2020. We report and discuss (1) the salience of key concepts and actors as the debate unfolded, (2) quantified changes in the polarity of the sentiment expressed toward them and their policy application contexts, and (3) patterns of co-occurrence via network analyses. To establish public discourse surrounding identified themes, in Study 2 we investigate how salience and sentiment of key themes and relations to policy were discussed in original Twitter chatter (N = 2,187). In Study 3, we complement these findings with a qualitative analysis of the subset of news articles which contained the most extreme sentiments (N = 111), providing an in-depth perspective of sentiments and discourse developed around keywords, as either promoting or undermining their credibility in, and trust toward behaviourally informed policy. We discuss our findings in light of the integration of behavioural science in national policy making under emergency constraints

    Antimicrobial Drugs and Community–acquired Clostridium difficile–associated Disease, UK

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    In a population-based case-control study of community-acquired Clostridium difficile–associated disease (CDAD), we matched 1,233 cases to 12,330 controls. CDAD risk increased 3-fold with use of any antimicrobial agent and 6-fold with use of fluoroquinolones. Prior use of antimicrobial agent did not affect risk for CDAD after 6 months

    Web-based patient-reported outcome measures for personalized treatment and care (PROMPT-Care) : multicenter pragmatic nonrandomized trial

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    Background: Despite the acceptability and efficacy of e–patient-reported outcome (ePRO) systems, implementation in routine clinical care remains challenging. Objective: This pragmatic trial implemented the PROMPT-Care (Patient Reported Outcome Measures for Personalized Treatment and Care) web-based system into existing clinical workflows and evaluated its effectiveness among a diverse population of patients with cancer. Methods: Adult patients with solid tumors receiving active treatment or follow-up care in four cancer centers were enrolled. The PROMPT-Care intervention supported patient management through (1) monthly off-site electronic PRO physical symptom and psychosocial well-being assessments, (2) automated electronic clinical alerts notifying the care team of unresolved clinical issues following two consecutive assessments, and (3) tailored online patient self-management resources. Propensity score matching was used to match controls with intervention patients in a 4:1 ratio for patient age, sex, and treatment status. The primary outcome was a reduction in emergency department presentations. Secondary outcomes were time spent on chemotherapy and the number of allied health service referrals. Results: From April 2016 to October 2018, 328 patients from four public hospitals received the intervention. Matched controls (n=1312) comprised the general population of patients with cancer, seen at the participating hospitals during the study period. Emergency department visits were significantly reduced by 33% (P=.02) among patients receiving the intervention compared with patients in the matched controls. No significant associations were found in allied health referrals or time to end of chemotherapy. At baseline, the most common patient reported outcomes (above-threshold) were fatigue (39%), tiredness (38.4%), worry (32.9%), general wellbeing (32.9%), and sleep (24.1%), aligning with the most frequently accessed self-management domain pages of physical well-being (36%) and emotional well-being (23%). The majority of clinical feedback reports were reviewed by nursing staff (729/893, 82%), largely in response to the automated clinical alerts (n=877). Conclusions: Algorithm-supported web-based systems utilizing patient reported outcomes in clinical practice reduced emergency department presentations among a diverse population of patients with cancer. This study also highlighted the importance of (1) automated triggers for reviewing above-threshold results in patient reports, rather than passive manual review of patient records; (2) the instrumental role nurses play in managing alerts; and (3) providing patients with resources to support guided self-management, where appropriate. Together, these factors will inform the integration of web-based PRO systems into future models of routine cancer care

    Bench-to-bedside review: The evaluation of complex interventions in critical care

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    Complex interventions, such as the introduction of medical emergency teams or an early goal-directed therapy protocol, are developed from a number of components that may act both independently and inter-dependently. There is an emerging body of literature advocating the use of integrated complex interventions to optimise the treatment of critically ill patients. As with any other treatment, complex interventions should undergo careful evaluation prior to widespread introduction into clinical practice. During the development of an international collaboration of researchers investigating protocol-based approaches to the resuscitation of patients with severe sepsis, we examined the specific issues related to the evaluation of complex interventions. This review outlines some of these issues. The issues specific to trials of complex interventions that require particular attention include determining an appropriate study population and defining current treatments and outcomes in that population, defining the study intervention and the treatment to be used in the control group, and deploying the intervention in a standardised manner. The context in which the research takes place, including existing staffing levels and existing protocols and procedures, is crucial. We also discuss specific details of trial execution, in particular randomization, blinded outcome adjudication and analysis of the results, which are key to avoiding bias in the design and interpretation of such trials
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