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Longer-term outcome and safety data of repeated subcutaneous racemic ketamine for treatment-resistant depression (TRD) is lacking, as is knowledge of the impact of prior ketamine treatment on subsequent response.
Aims
To evaluate the effectiveness and safety of a 4-week course of subcutaneous racemic ketamine over 6 months and investigate whether prior ketamine treatment influences treatment response.
Method
An open label extension (OLE) of a randomised controlled trial (RCT) was conducted at seven mood disorder centres in Australasia, enrolling consenting trial participants who had a Montgomery-Åsberg Depression Rating Scale (MADRS) score of ≥20 at post-trial assessment. Participants initially received twice-weekly 0.5 mg/kg subcutaneous racemic ketamine (fixed regimen) for 4 weeks. Dosing was revised after a Data Safety Monitoring Board recommendation, to a ‘flexible regimen’ (0.5–0.9 mg/kg with response-guided increments). Depression and safety outcomes were assessed throughout treatment, and 4 weeks and 6 months later.
Results
130 RCT participants entered the OLE phase of whom 32 underwent the fixed OLE regimen and 98 the flexible regimen. At treatment end, 30% (36/116) had responded (MADRS reduction ≥50%), and 4 weeks later 17% (19/110) were ‘responders’. Over 50% experienced <25% MADRS reduction. There was no difference in depression response at any time point between regimens. Those treated with ketamine during the RCT showed a transient reduced response after first OLE treatment but at no other assessment point. There were no reports of suicide or suicidal behaviour requiring admission and only expected side-effects observed.
Conclusions
In a highly treatment-resistant sample, a 4-week course of subcutaneous racemic ketamine produced short-term clinical benefit in a minority of participants, with response rates declining substantially after treatment cessation, and no unexpected safety concerns. Exploratory subgroup analyses showed no association between prior RCT ketamine exposure and OLE outcomes.
Graph bootstrap percolation is a discrete-time process capturing the spread of a virus on the edges of Kn. Given an initial set G ⊆ Kn of infected edges, the transmission of the virus is governed by a fixed graph H: in each round of the process, any edge e of Kn that is the last uninfected edge in a copy of H in Kn gets infected as well. Once infected, edges remain infected forever. The process was introduced by Bollobás in 1968 in the context of weak saturation and has since inspired a vast array of beautiful mathematics. The main focus of this survey is the extremal question of how long the infection process can last before stabilising. We give an exposition of our recent systematic study of this maximum running time and the inuence of the infection rule H. The topic turns out to possess a wide variety of interesting behaviour, with connections to additive, extremal, and probabilistic combinatorics. Along the way, we encounter a number of surprises and attractive open problems.
Antimicrobial stewardship programs (ASPs) are designed to optimize antimicrobial use for healthcare facilities and are required at all acute care and critical access hospitals (CAHs). However, rural CAHs often lack the resources to implement robust ASPs. The purpose of this study was to evaluate the impact of adding regional remote antimicrobial stewardship services across a 14-hospital system consisting of one acute care and thirteen CAHs.
Methods:
Remote ASP expansion consisted of adding an infectious disease (ID) pharmacist and two ID physicians (0.3 FTE) to provide daily stewardship activities including prospective feedback on antibiotic optimization and use education through remote chart review and communication. Antimicrobial utilization, cost savings, and Clostridioides difficile infection (CDI) rates were tracked. Intervention data and acceptance rates were also collected.
Results:
In the first twelve months following regional remote stewardship expansion, the ASP demonstrated a $619,053.97 reduction (56% decrease in Antibiotic Cost/CMI adjusted patient days) in antimicrobial expenses. While only aztreonam use was significantly reduced at the acute care facility (P < .01), the use of vancomycin, meropenem, linezolid, and aztreonam decreased by 33%, 31%, 18%, and 35%, respectively, among the CAHs (P < .001). A 53% reduction in CDI rates was observed across the health system (P < .01). The program averaged 92 interventions per month, with an overall intervention acceptance rate of 86%.
Conclusions:
Remote ASPs represent a viable strategy for extending antibiotic stewardship expertise to resource-limited settings to achieve financial and clinical benefits.
Electronic medical records (EMRs) have become foundational to healthcare, improving communication, data access, and patient outcomes. However, increasing reliance on EMR’s has increased vulnerabitlity during downtime. In paediatric cardiac care, where patients require highly specialized, multidisciplinary treatment, the absence of a functional EMR significantly disrupts documentation workflows and threatens the accuracy of data submitted to national cardiac registries including the Paediatric Cardiac Critical Care Consortium and the Society of Thoracic Surgeons.
Methods:
This article examines the impact of an unexpected 27-day complete EMR downtime followed by a 10-day partial downtime, where a data abstraction team manually managed data for 123 unique cardiac patient encounters totalling 762 patient days at a paediatric heart centre and the response of the cardiac data abstraction team. We describe how the team adapted its abstraction process during the downtime, used collaborative strategies, enhanced paper tracking, and proactively communicated to maintain data integrity. Efforts were grounded in a deep understanding of paediatric registry metrics and submission requirements.
Results:
Despite significant workflow disruptions, the team was able to preserve data accuracy and meet registry deadlines by identifying documentation gaps, supplementing data from paper records, and coordinating with frontline providers. The event revealed key vulnerabilities in downtime preparedness but also demonstrated the value of dedicated data abstractors in ensuring continuity of quality reporting.
Conclusion:
Downtime events highlight the critical role of data abstractors and the need for institutional planning and registry-level guidance. Developing robust downtime protocols and embedding abstraction-aware workflows can mitigate documentation risks and protect data quality, ultimately supporting improved outcomes for paediatric cardiac patients.
Whether due to climate change, drought, flooding, competing demands, or pollution, watersheds across the globe are under significant duress. To respond to these complex challenges, collaborative approaches to watershed governance have increasingly been adopted in the United States, but very few studies have yet to systematically assess their true effectiveness. This book addresses a significant gap in research by undertaking a comprehensive study of alternative, collaborative structures and whether these produce better water quality outcomes than traditional regulatory governance. Analyzing almost one quarter of US watersheds and examining both the revealed and perceived outcomes of watershed stakeholder collaboration, it is the first large-scale study on this topic. The insights the chapters provide will equip readers with a nuanced and generalizable understanding of the effectiveness of collaboration in natural resource management, which will be of great interest to researchers and practitioners in wide-ranging environmental and public policy roles.
To truly understand the efficacy of attention-deficit hyperactivity disorder (ADHD) psychoeducation, we need to know what is commonly included in it. This scoping review aims to describe the content of psychoeducation interventions for ADHD in published research. A literature search was conducted to identify relevant papers. Descriptions of psychoeducation aimed at children, parents/carers, adults and teachers were identified and compared narratively.
Results
After screening, 57 papers were identified for data extraction and coding. Content themes included ‘information about ADHD’; ‘practical advice’; ‘impact of ADHD’; ‘treatment of ADHD’; ‘co-occurrence’; and ‘self-image/self-esteem’. ‘Information about ADHD’ and ‘practical advice’ were the most common themes, with variance on inclusion of other themes. Most of the identified research involved psychoeducation for parents of children with ADHD.
Clinical implications
This review provides greater understanding of the content and delivery of ADHD psychoeducation. Further research could use this understanding to ascertain the efficacy of different content themes in supporting those with ADHD.
Data are lacking to guide management of asymptomatic bacteriuria (ASB) in elderly patients with a fall. Comparing treated versus non-treated patients, we identified clear harm and no benefit from antibiotic treatment. Our data support IDSA recommendations to withhold antibiotics in elderly patients with ASB and evaluate alternative causes of falls.
This study demonstrates a national programme which has been accepted in Wales as a mandatory part of the induction process for the rotating ENT SHO cohort.
Methods
The ENT Induction Bootcamp was established based on the learning needs of ENT SHOs. Pre- and post-course assessment of the subjective and objective benefit of the 1-day course was captured.
Results
Between 2022 and 2024, 152 participants have attended the bootcamp; all of whom (100 per cent) found the course beneficial. The greatest improvements in participant confidence were observed in emergency tracheostomy management, flexible nasendoscopy and nasal examination (all p < 0.01). Based on objective assessment, participant knowledge improved from a mean of 68.5 per cent to 96.5 per cent.
Conclusion
This initiative highlights the value of a bootcamp approach to standardise junior doctors’ abilities to manage ENT emergencies. This bootcamp is now a mandatory component for all SHO entering ENT attachments in Wales, in an easily adoptable format.
OBJECTIVES/GOALS: The Oregon Clinical and Translational Research Institute (OCTRI) Clinical Research Navigator program provides a single point of entry for clinical and translational research services, support, advice and guidance. We provide data to illustrate the Navigator model at OHSU and examine continued opportunities to optimize research resources. METHODS/STUDY POPULATION: Requests and activities performed by the OCTRI Navigator program, staffed by 3 FTE (2 Assistant Navigators and 1 Assistant Director) were analyzed. Navigator receives requests through multiple methods: a digital form (REDCap®), email, phone calls. Requests for services and support include focused need for a core or a broad request for multiple services for start-up: informatics, the clinical and translational research center, regulatory knowledge and support, recruitment, qualitative methods, community research, biostatistics or broad consultations. Requests are tracked in SPARCRequest. Navigator also supports wayfinding to institutional resources outside of the CTSA, matchmaking for sponsors seeking investigators, and serves as a connector and facilitator across programs. RESULTS/ANTICIPATED RESULTS: OCTRI Clinical Research Navigator triaged an average of 964 research requests for 613 projects with 388 unique investigators annually between 2018-2022. Navigator also fields more than 80 calls each year that are unrelated to CTSA projects. Project requests are examined to illustrate trends in projects requesting multiple services and display how Navigator simplifies project intake and connects researchers to resources they may have not recognized they needed. Project attributes including funding type and funding status are included in this review. DISCUSSION/SIGNIFICANCE: CTSA resources are essential to the infrastructure available to researchers. While absolute numbers of requests provide little insight into the impact each CTSA hub may have, the timing and clustering trends of projects with multiple program requests shows how a combination of technology and experienced staff can efficiently support researchers.
OBJECTIVES/GOALS: Under enrollment of trials is a continued challenge in clinical research. In response, the Oregon Clinical and Translational Research Institute (OCTRI), the CTSA at Oregon Health & Science University (OHSU), launched a central resource, OCTRI Recruitment, to equip researchers with the knowledge and tools needed for recruitment success. METHODS/STUDY POPULATION: OCTRI Recruitment focused programmatic development in response to the voice of OHSU researchers. In 2018, a qualitative assessment project, “Clinical Research Recruitment Methods at OHSU”, was launched, which included a survey (N=100) and optional interview (N=24), to determine recruitment method utilization and experience, along with opinions on the needs and culture of recruitment at OHSU. In 2022, as part of the same protocol project, a second survey was deployed (N=31), to determine changes in recruitment method use and to identify further recruitment challenges. OCTRI Recruitment also obtains continual informal input on perceived recruitment challenges and opportunities through engagement within the OHSU research team community. RESULTS/ANTICIPATED RESULTS: 2018 survey and interviews showed: many researchers relied on their clinic’s patient population for recruitment (74%); were unaware of available tools to recruit OHSU patients, especially informatics tools (5-22%); and were not aware of and minimally use methods to recruit outside OHSU (<40%). In response, OCTRI Recruitment developed and began recruitment consultations, guidance materials, and educational seminars. In 2022, survey results showed an increase in the use of informatics-based recruitment tools (2-14%+) and increased use of methods focused on individuals outside of OHSU (1-7%+). Additionally, a review of studies post OCTRI Recruitment consultation over three years (N=51) showed that of those studies, 40% increased enrollment numbers and 61% increased team’s confidence level post consult. DISCUSSION/SIGNIFICANCE: This approach to program creation allowed for a uniquely targeted development of services in response to the voice of OHSU researchers and recruitment challenges. Based on additional data, efforts have begun to address the recruitment challenges of a study opportunity website, participant compensation methods, and community-based recruitment.
Maintaining attention underlies many aspects of cognition and becomes compromised early in neurodegenerative diseases like Alzheimer’s disease (AD). The consistency of maintaining attention can be measured with reaction time (RT) variability. Previous work has focused on measuring such fluctuations during in-clinic testing, but recent developments in remote, smartphone-based cognitive assessments can allow one to test if these fluctuations in attention are evident in naturalistic settings and if they are sensitive to traditional clinical and cognitive markers of AD.
Method:
Three hundred and seventy older adults (aged 75.8 +/− 5.8 years) completed a week of remote daily testing on the Ambulatory Research in Cognition (ARC) smartphone platform and also completed clinical, genetic, and conventional in-clinic cognitive assessments. RT variability was assessed in a brief (20-40 seconds) processing speed task using two different measures of variability, the Coefficient of Variation (CoV) and the Root Mean Squared Successive Difference (RMSSD) of RTs on correct trials.
Results:
Symptomatic participants showed greater variability compared to cognitively normal participants. When restricted to cognitively normal participants, APOE ε4 carriers exhibited greater variability than noncarriers. Both CoV and RMSSD showed significant, and similar, correlations with several in-clinic cognitive composites. Finally, both RT variability measures significantly mediated the relationship between APOE ε4 status and several in-clinic cognition composites.
Conclusions:
Attentional fluctuations over 20–40 seconds assessed in daily life, are sensitive to clinical status and genetic risk for AD. RT variability appears to be an important predictor of cognitive deficits during the preclinical disease stage.
There is concern that junior doctors are not prepared for their post-graduate attachments in ENT. The aims of this study were to capture the learning priorities of those in the ENT first on-call role and facilitate further educational opportunities to address these needs.
Method
Semi-structured interviews were undertaken to explore the learning needs of junior doctors with seven junior and two senior ENT clinicians.
Results
The thematic analysis generated three themes: the role of the ENT Junior; the perceived, expressed and prescribed learning needs; and attitudes towards future learning. These themes explored the misalignment between undergraduate training and post-graduate expectations, the lack of competence in ENT practical skills and the need for focused ENT training prior to commencing on-call shifts.
Conclusion
All interviewees identified the need for greater experience in practical interventional skills prior to their ENT attachments and expressed interest towards a standardised, bootcamp-style induction with simulated emergency experience.
Previous findings suggest that time setting errors (TSEs) in the Clock Drawing Test (CDT) may be related mainly to impairments in semantic and executive function. Recent attempts to dissociate the classic stimulus-bound error (setting the time to “10 to 11” instead of “10 past 11”) from other TSEs, did not support hypotheses regarding this error being primarily executive in nature or different from other time setting errors in terms of neurocognitive correlates. This study aimed to further investigate the cognitive correlates of stimulus-bound errors and other TSEs, in order to trace possible underlying cognitive deficits.
Methods:
We examined cognitive test performance of participants with preliminary diagnoses associated with mild cognitive impairment. Among 490 participants, we identified clocks with stimulus-bound errors (n = 78), other TSEs (n = 41), other errors not related to time settings (n = 176), or errorless clocks (n = 195).
Results:
No differences were found on any dependent measure between the stimulus-bound and the other TSErs groups. Group comparisons suggested TSEs in general, to be associated with lower performance on various cognitive measures, especially on semantic and working memory measures. Regression analysis further highlighted semantic and verbal working memory difficulties as being the most prominent deficits associated with these errors.
Conclusion:
TSEs in the CDT may indicate underlying deficits in semantic function and working memory. In addition, results support previous findings related to the diagnostic value of TSEs in detecting cognitive impairment.
Smartphones have the potential for capturing subtle changes in cognition that characterize preclinical Alzheimer’s disease (AD) in older adults. The Ambulatory Research in Cognition (ARC) smartphone application is based on principles from ecological momentary assessment (EMA) and administers brief tests of associative memory, processing speed, and working memory up to 4 times per day over 7 consecutive days. ARC was designed to be administered unsupervised using participants’ personal devices in their everyday environments.
Methods:
We evaluated the reliability and validity of ARC in a sample of 268 cognitively normal older adults (ages 65–97 years) and 22 individuals with very mild dementia (ages 61–88 years). Participants completed at least one 7-day cycle of ARC testing and conventional cognitive assessments; most also completed cerebrospinal fluid, amyloid and tau positron emission tomography, and structural magnetic resonance imaging studies.
Results:
First, ARC tasks were reliable as between-person reliability across the 7-day cycle and test-retest reliabilities at 6-month and 1-year follow-ups all exceeded 0.85. Second, ARC demonstrated construct validity as evidenced by correlations with conventional cognitive measures (r = 0.53 between composite scores). Third, ARC measures correlated with AD biomarker burden at baseline to a similar degree as conventional cognitive measures. Finally, the intensive 7-day cycle indicated that ARC was feasible (86.50% approached chose to enroll), well tolerated (80.42% adherence, 4.83% dropout), and was rated favorably by older adult participants.
Conclusions:
Overall, the results suggest that ARC is reliable and valid and represents a feasible tool for assessing cognitive changes associated with the earliest stages of AD.
Helminths are common parasites of wild ungulates that can have substantial costs for growth, mortality and reproduction. Whilst these costs are relatively well documented for mature animals, knowledge of helminths' impacts on juveniles is more limited. Identifying these effects is important because young individuals are often heavily infected, and juvenile mortality is a key process regulating wild populations. Here, we investigated associations between helminth infection and overwinter survival in juvenile wild red deer (Cervus elaphus) on the Isle of Rum, Scotland. We collected fecal samples non-invasively from known individuals and used them to count propagules of 3 helminth taxa (strongyle nematodes, Fasciola hepatica and Elaphostrongylus cervi). Using generalized linear models, we investigated associations between parasite counts and overwinter survival for calves and yearlings. Strongyles were associated with reduced survival in both age classes, and F. hepatica was associated with reduced survival in yearlings, whilst E. cervi infection showed no association with survival in either age class. This study provides observational evidence for fitness costs of helminth infection in juveniles of a wild mammal, and suggests that these parasites could play a role in regulating population dynamics.
In studies of Holocaust representation and memory, scholars of literature and culture traditionally have focused on particular national contexts. At the same time, recent work has brought the Holocaust into the arena of the transnational, leading to a crossroads between localized and global understandings of Holocaust memory. Further complicating the issue are generational shifts that occur with the passage of time, and which render memory and representations of the Holocaust ever more mediated, commodified, and departicularized. Nowhere is the inquiry into Holocaust memory more fraught or potentially more productive than in German Studies, where scholars have struggled to address German guilt and responsibility while doing justice to the global impact of the Holocaust, and are increasingly facing the challenge of engaging with the broader, interdisciplinary, transnational field. Persistent Legacy connects the present, critical scholarly moment with this long disciplinary tradition, probing the relationship between German Studies and Holocaust Studies today. Fifteen prominent scholars explore how German Studies engages with Holocaust memory and representation, pursuingcritical questions concerning the borders between the two fields and how they are impacted by emerging scholarly methods, new areas of inquiry, and the changing place of Holocaust memory in contemporary Germany.
Contributors: David Bathrick, Stephan Braese, William Collins Donahue, Tobias Ebbrecht-Hartmann, Katja Garloff, Andreas Huyssen, Irene Kacandes, Jennifer M. Kapczynski, Sven Kramer, Erin McGlothlin, Leslie Morris, Brad Prager, Karen Remmler, Michael D. Richardson, Liliane Weissberg.
Erin McGlothlin and Jennifer M. Kapczynski are both Associate Professors in the Department of Germanic Languages and Literatures at Washington University in St. Louis.
Medically unexplained symptoms otherwise referred to as persistent physical symptoms (PPS) are debilitating to patients. As many specific PPS syndromes share common behavioural, cognitive, and affective influences, transdiagnostic treatments might be effective for this patient group. We evaluated the clinical efficacy and cost-effectiveness of a therapist-delivered, transdiagnostic cognitive behavioural intervention (TDT-CBT) plus (+) standard medical care (SMC) v. SMC alone for the treatment of patients with PPS in secondary medical care.
Methods
A two-arm randomised controlled trial, with measurements taken at baseline and at 9, 20, 40- and 52-weeks post randomisation. The primary outcome measure was the Work and Social Adjustment Scale (WSAS) at 52 weeks. Secondary outcomes included mood (PHQ-9 and GAD-7), symptom severity (PHQ-15), global measure of change (CGI), and the Persistent Physical Symptoms Questionnaire (PPSQ).
Results
We randomised 324 patients and 74% were followed up at 52 weeks. The difference between groups was not statistically significant for the primary outcome (WSAS at 52 weeks: estimated difference −1.48 points, 95% confidence interval from −3.44 to 0.48, p = 0.139). However, the results indicated that some secondary outcomes had a treatment effect in favour of TDT-CBT + SMC with three outcomes showing a statistically significant difference between groups. These were WSAS at 20 weeks (p = 0.016) at the end of treatment and the PHQ-15 (p = 0.013) and CGI at 52 weeks (p = 0.011).
Conclusion
We have preliminary evidence that TDT-CBT + SMC may be helpful for people with a range of PPS. However, further study is required to maximise or maintain effects seen at end of treatment.
Antibiotics are among the most common medications prescribed in nursing homes. The annual prevalence of antibiotic use in residents of nursing homes ranges from 47% to 79%, and more than half of antibiotic courses initiated in nursing-home settings are unnecessary or prescribed inappropriately (wrong drug, dose, or duration). Inappropriate antibiotic use is associated with a variety of negative consequences including Clostridioides difficile infection (CDI), adverse drug effects, drug–drug interactions, and antimicrobial resistance. In response to this problem, public health authorities have called for efforts to improve the quality of antibiotic prescribing in nursing homes.
To estimate the impact of California’s antimicrobial stewardship program (ASP) mandate on methicillin-resistant Staphylococcus aureus (MRSA) and Clostridioides difficile infection (CDI) rates in acute-care hospitals.
Population:
Centers for Medicare and Medicaid Services (CMS)–certified acute-care hospitals in the United States.
Data Sources:
2013–2017 data from the CMS Hospital Compare, Provider of Service File and Medicare Cost Reports.
Methods:
Difference-in-difference model with hospital fixed effects to compare California with all other states before and after the ASP mandate. We considered were standardized infection ratios (SIRs) for MRSA and CDI as the outcomes. We analyzed the following time-variant covariates: medical school affiliation, bed count, quality accreditation, number of changes in ownership, compliance with CMS requirements, % intensive care unit beds, average length of stay, patient safety index, and 30-day readmission rate.
Results:
In 2013, California hospitals had an average MRSA SIR of 0.79 versus 0.94 in other states, and an average CDI SIR of 1.01 versus 0.77 in other states. California hospitals had increases (P < .05) of 23%, 30%, and 20% in their MRSA SIRs in 2015, 2016, and 2017, respectively. California hospitals were associated with a 20% (P < .001) decrease in the CDI SIR only in 2017.
Conclusions:
The mandate was associated with a decrease in CDI SIR and an increase in MRSA SIR.