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To describe the real-world clinical impact of a commercially available plasma cell-free DNA metagenomic next-generation sequencing assay, the Karius test (KT).
Methods:
We retrospectively evaluated the clinical impact of KT by clinical panel adjudication. Descriptive statistics were used to study associations of diagnostic indications, host characteristics, and KT-generated microbiologic patterns with the clinical impact of KT. Multivariable logistic regression modeling was used to further characterize predictors of higher positive clinical impact.
Results:
We evaluated 1000 unique clinical cases of KT from 941 patients between January 1, 2017–August 31, 2023. The cohort included adult (70%) and pediatric (30%) patients. The overall clinical impact of KT was positive in 16%, negative in 2%, and no clinical impact in 82% of the cases. Among adult patients, multivariable logistic regression modeling showed that culture-negative endocarditis (OR 2.3; 95% CI, 1.11–4.53; P .022) and concern for fastidious/zoonotic/vector-borne pathogens (OR 2.1; 95% CI, 1.11–3.76; P .019) were associated with positive clinical impact of KT. Host immunocompromised status was not reliably associated with a positive clinical impact of KT (OR 1.03; 95% CI, 0.83–1.29; P .7806). No significant predictors of KT clinical impact were found in pediatric patients. Microbiologic result pattern was also a significant predictor of impact.
Conclusions:
Our study highlights that despite the positive clinical impact of KT in select situations, most testing results had no clinical impact. We also confirm diagnostic indications where KT may have the highest yield, thereby generating tools for diagnostic stewardship.
Deutetrabenazine is a vesicular monoamine transporter type 2 inhibitor (VMAT2i) for treatment of adults with tardive dyskinesia (TD) and Huntington disease (HD)-related chorea. A 4-week patient titration kit was launched (July 2021) to assist patients in titrating to optimal deutetrabenazine dosages.
Methods
START is an ongoing, routine-care, 2-cohort (TD and HD) study evaluating deutetrabenazine dosing patterns, effectiveness, and treatment satisfaction when initiated using a 4-week patient titration kit, with further titration allowed based on effectiveness and tolerability. Patient satisfaction with the kit was assessed via questionnaire at week 8. Results from the first 50 patients enrolled in the TD cohort are presented in this interim analysis.
Results
50 patients in the TD cohort were included (mean age, 58.7 years, 66% female, 74% White, mean baseline Abnormal Involuntary Movement Scale [AIMS] total motor score, 13.8). 39 of 50 (78%) patients successfully completed the titration kit (completed within 5 weeks or reached optimal dose [≥24 mg/day] within 4 weeks; mean [SE] days, 27.5 [0.32]). Mean (SE) time to reach optimal dosage for the 38 (76%) patients who reached it was 46.3 (5.48) days. Mean (SE) deutetrabenazine dosages were 27.7 (0.92) mg/day at week 4, 32.5 (1.00) mg/day at week 8, and 32.8 (1.18) mg/day at week 12. After completion of the kit, mean (SE) dosage was 31.8 (1.24) mg/day, and 95% of patients reaching week 12 had a maintenance dosage ≥24 mg/day. Mean (SE) adherence with the kit was 97.2% (1.39%). 22% of patients had an adverse event (AE); AEs led to dose reduction for 2%, drug interruption for 2%, and study discontinuation for 6% of patients. Serious and treatment-related adverse events were reported for 2% and 6% of patients. 24 of 49 (49%)23 of 49 patients achieved treatment success (“much”/“very much” improved) at week 12 per Clinical Global Impression of Change (GIC); 23 or 49 (47%) per Patient GIC. Total motor AIMS scores were reduced by 4.8 points at week 12. Among the 39 (78%) patients who responded to the questionnaire, 72% found it easy to understand when/which dosage to take, 77% easy to remember to take their medication, 74% easy to change the dose weekly, 69% easy to follow kit instructions, and 77% easy to use the kit overall.
Conclusions
78% of patients with TD successfully completed the 4-week titration kit in approximately 4 weeks, with adherence rates of 97.2%. 95% of patients reaching week 12 had a maintenance dosage ≥24 mg/day. 49% of patients achieved treatment success based on Clinical GIC. Patients reported high levels of satisfaction with the titration kit and 77% found it easy to use. The 4-week patient titration kit enabled patients to titrate DTBZ to an optimal dosage and experience effectiveness similar to the pivotal clinical trials.
East Asian population history has only recently been the focus of intense investigations using ancient genomics techniques, yet these studies have already contributed much to our growing understanding of past East Asian populations, and cultural and linguistic dispersals. This Element aims to provide a comprehensive overview of our current understanding of the population history of East Asia through ancient genomics. It begins with an introduction to ancient DNA and recent insights into archaic populations of East Asia. It then presents an in-depth summary of current knowledge by region, covering the whole of East Asia from the first appearance of modern humans, through large-scale population studies of the Neolithic and Metal Ages, and into historical times. These recent results reflect past population movements and admixtures, as well as linguistic origins and prehistoric cultural networks that have shaped the region's history. This title is also available as Open Access on Cambridge Core.
OBJECTIVES/GOALS: To determine if incorporating specific laboratory values and plasma biomarkers (club cell secretory protein (CC16), matrix metalloproteinase 3 (MMP3), interleukin 8 (IL-8), protein C) to the Lung Injury Prediction (LIP) Score improves the predictive value for development of acute respiratory distress syndrome (ARDS) in ICU patients. METHODS/STUDY POPULATION: Adult patients admitted to the ICU on supplemental oxygen over baseline requirement with a LIP Score ≥6 will be included. Patients admitted to the ICU >24 hours, end-stage renal disease, decompensated heart failure, or <100 µL plasma available will be excluded. Whole blood will be collected from the core lab, centrifuged, and plasma will be stored at -80°C. Protein biomarkers will be measured using enzyme-linked immunosorbent assay. Baseline characteristics, laboratory values, ventilator parameters, and clinical outcomes will be collected from the medical record. ARDS will be defined by the Berlin criteria. Machine learning methods will be used to identify the model with the highest predictive accuracy. Area under the receiver operating characteristic curve of each model will be compared to the LIP Score. RESULTS/ANTICIPATED RESULTS: Research is in progress. Plasma samples and clinical data have been collected for 148 of the 160 samples required to achieve power. Biomarker analysis will take place after sample collection is complete. We anticipate a machine learning model incorporating laboratory values and one or more plasma biomarkers into the LIP Score will outperform the baseline LIP Score for prediction of ARDS development. DISCUSSION/SIGNIFICANCE: Delayed diagnosis and intervention contribute to poor ARDS outcomes. Current predictive models for ARDS have low accuracy and enriching these models with plasma biomarkers may increase their predictive value. Development of accurate models may facilitate earlier ARDS diagnosis and intervention as well as enrichment strategies for ARDS trials.
Examining the role of arts and culture in regional Australia often focuses on economic aspects within the creative industries. However, this perspective tends to disregard the value of unconventional practices and fails to recognise the influence of regional ecological settings and the well-being advantages experienced by amateur and hobbyist musicians who explore ubiquitous methods of music creation. This article presents the results of a survey conducted among practitioners in regional Australia, exploring their utilisation of creative technology ecosystems. This project marks the first independent, evidence-based study of experimental electronic music practices in regional Australia and how local and digital resource ecosystems support those activities. Spanning the years 2021 and 2022, the study involved interviewing 11 participants from many Australian states. In this article, we share the study’s findings, outlining the diverse range of experimental electronic music practices taking place across regional Australia and how practitioners navigate the opportunities and challenges presented by their local context.
The Virtual Interprofessional Education program is a multi-institutional consortium collaborative formed between five universities across the United States. As of January 2022, the collaborative includes over 60 universities in 30 countries. The consortium brings healthcare students together for a short-term immersive team experience that mimics the healthcare setting. The VIPE program has hosted over 5,000 students in healthcare training programs. The VIPE program expanded to a VIPE Security model to host students across multiple disciplines outside the field of healthcare to create a transdisciplinary approach to managing complex wicked problems.
Method:
Students receive asynchronous materials ahead of a synchronous virtual experience. VIPE uses the Interprofessional Education Competencies (IPEC) competencies (IPEC, 2016) and aligns with The Health Professions Accreditors Collaborative (HPAC) 2019 guidelines. VIPE uses an active teaching strategy, problem or case-based learning (PBL/CBL), which emphasizes creating an environment of psychological safety and its antecedents (Frazier et al., 2017 and Salas, 2019, Wiss, 2020). Following this model, VIPE Security explores whether the VIPE model can be tailored to work across multiple sectors to discuss management of complex wicked problems to include: climate change, disaster, cyber attacks, terrorism, pandemics, conflict, forced migration, food/water insecurity, human/narco trafficking etc. VIPE Security has hosted two events to include professionals in the health and security sectors to work through complex wicked problems to further understand their roles, ethical and responsible information sharing, and policy implications.
Results:
VIPE demonstrates statistically significant gains in knowledge towards interprofessional collaborative practice as a result of participation. VIPE Security results are currently being analyzed.
Conclusion:
This transdisciplinary approach to IPE allows for an all-hands-on-deck approach to security, fostering early education and communication of students across multiple sectors. The VIPE Security model has future implications to be utilized within multidisciplinary organizations for practitioners, governmental agencies, and the military.
In Ishiguro’s first novel, A Pale View of Hills, the narrator, Etsuko, looks out at the view of the surrounding countryside from her English garden and comments ‘I always think it’s so truly like England out here’. The phrase ‘truly like’ emphasizes a central topic in Ishiguro’s work: the question of England, or of what it is ‘truly like’ that is evoked especially in The Remains of the Day, When We Were Orphans, Never Let Me Go, and The Buried Giant. Such novels underscore the idea that human communities are permanent only in their heterogeneity and instability, in their fragile and conflicted status, and in the varied and ever-changing terms in which they talk to themselves about themselves. Ishiguro’s novels repeatedly return to and continually reinvent forms of Englishness because they recognize that England is an invention, a phantasm that can therefore only be ‘truly like’ itself, not itself. His narratives are not only about the exilic, ungrounded condition of the immigrant or of the cultural stranger within a society, but also (and therefore) about the ersatz, ungrounded condition of us all.
The Introduction to The Cambridge Companion to Kazuo Ishiguro offers a brief overview of Ishiguro’s remarkable oeuvre. The Introduction touches on the key themes and concerns of Ishiguro’s work as well as on the deceptively innovative formal narrative and linguistic qualities of his works; it offers a brief survey of the author’s career by following the successive ‘turning points’ that he adduces in his 2017 Nobel Lecture; and it considers the ways in which, in focusing so often on the ethics of professionalism, the novels also reflect on the profession of authorship itself – a role that Ishiguro has both embodied and performed with such adroitness and style, and with such admirable literary inventiveness and integrity, for more than forty years.