The prognostic value of left atrial (LA) strain in patients with heart failure with reduced ejection fraction (HFrEF) has not been fully elucidated. Therefore, this study investigated the prognostic value of LA strain in HFrEF patients in relation to all-cause mortality.

A total of 822 echocardiograms from HFrEF patients admitted to a heart failure clinic were analysed offline. To calculate left atrial reservoir strain (LA RS) and left atrial contractile strain (LA CS), LA two-dimensional speckle tracking was performed in the 4-chamber, 2-chamber and 3-chamber view. The end-point was all-cause mortality. The association between LA strain parameters and outcome was examined using Cox regression.

The median follow-up time was 40 months and follow-up was 100% complete. During follow-up, a total of 137 patients (16.7%) died of all causes. In a final multivariable model adjusted for clinical and echocardiographic parameters including global longitudinal strain, LA RS and LA CS were significantly associated with all-cause death during follow-up (LA RS, HR 0.96, 95% CI 0.92 to 0.99, p=0.014, pr. 1% increase) (LA CS, HR 0.95, 95% CI 0.92 to 0.98, p=0.002, pr. 1% increase).

When added to the final multivariable model, both LA RS and LA CS contributed with incremental prognostic value as determined by C-statistic (LA RS: C-stat difference 0.007, 95% CI 0.000 to 0.020, p=0.050) (LA CS: C-stat difference 0.009, 95% CI 0.000 to 0.023, p=0.030).

In HFrEF patients, LA RS and LA CS were associated with all-cause mortality and contributed incremental prognostic value in addition to established prognostic measures.

Surgery and its resulting hospitalisation are associated with subsequent cognitive and functional decline. Interventions to reduce this decline have exhibited limited success. Prehabilitation is the process of enhancing capacity and reserve before an acute stressor to improve tolerance of the acute physiologic insult. Older adults requiring major surgery are an ideal population for prehabilitation. Prehabilitation exercise studies have mostly focused on physical training to improve physical outcomes after specific surgery types, and data on cognitive outcomes and in broader surgical populations are needed. Computerised cognitive training (CCT) has been shown to enhance memory, processing speed, attention and multitasking. Combining CCT with a physical exercise may be most effective in reducing cognitive and functional decline in older patients undergoing major surgery, but has yet to be evaluated.

The COgnitive and Physical Exercise to improve Outcomes after Surgery (COPE-iOS) study is a randomised, controlled, participant and assessor blinded clinical trial testing the hypothesis that a pragmatic programme combining CCT and physical exercise throughout the perioperative (ie, preoperative and postoperative) period will improve long-term cognitive and disability outcomes in older surgical patients at high risk for decline. The trial aims to randomise 250 patients who undergo major surgery for a treatment period of approximately 1 month prior to surgery and 3 months after surgery, with a follow-up period of 12 months after surgery. The primary outcome is global cognition at 3 months after surgery. Key secondary outcomes include global cognition at 12 months after surgery and disability in activities of daily living and depression at 3 and 12 months after surgery.

Trial protocol has been approved by Vanderbilt Human Research Protections Programme (#202496) and an independent Data Safety Monitoring Board. Results will be presented at scientific conferences and submitted for publication.

ClinicalTrials.gov Registry NCT04889417.

Group A Streptococcus (Strep A) causes a wide spectrum of diseases, ranging from pharyngitis and impetigo to severe invasive infections and immune-mediated conditions such as acute rheumatic fever, rheumatic heart disease and acute post-streptococcal glomerulonephritis. Contemporary data on the global burden of Strep A diseases are lacking. The proposed study aims to use administrative data from numerous jurisdictions to estimate age-specific incidence or prevalence of Strep A diseases, with an emphasis on severe clinical endpoints. Depending on the availability of data, a secondary objective will be to estimate the economic burden of Strep A diseases.

This population-based descriptive study will use routine health data obtained from different low-income and middle-income and high-income countries through international research collaborations to estimate the country-level and global burden of Strep A diseases. Data will be primarily obtained and collated from hospital or national health laboratory databases for individuals across all age groups, along with emergency department, primary care and microbiological datasets where available. Strep A disease endpoints will be identified using International Classification of Diseases 10th Revision or other relevant coding systems and microbiological diagnosis. Age-specific incidence and prevalence rates will be computed using population denominators, and country-level age-adjusted rates will be applied to standard global reference populations to estimate the number of cases globally.

Ethical approval to conduct this study was obtained from the Human Research Ethics Committee at the University of Western Australia (reference: #2024/ET000401) and governance approval was obtained from The Kids Research Institute Australia. The findings from this study will be published in peer-reviewed journals and presented at Strep A Vaccine Global Consortium collaborative meetings.

Respiratory tract infections (RTIs) cause significant child morbidity and mortality. Periodical influenza vaccination and respiratory syncytial virus (RSV) prophylaxis can reduce this burden in risk groups. However, in the Caribbean, the optimal timing of these interventions is unclear due to a lack of epidemiological data. We aimed to investigate pathogens associated with RTI disease burden and pathogen specific seasonality in the Caribbean in the context of COVID-19 to achieve optimal timing of preventive measures.

We conducted a retrospective study using patient records and pathogen detection data from St. Maarten Medical Center from 1 September 2018 to 1 September 2023. We performed regression to associate pathogens with outcomes and seasonality.

RTI diagnoses accounted for 50.8% (N=7380) of outpatient cases and 28.0% (N=508) of inpatient cases. RSV and rhino/enterovirus were associated with more frequent oxygen requirement (OR 5.1 (95% CI 2.3 to 11) and OR 2.3 (95% CI 1.2 to 4.3), respectively) and tachypnoea/dyspnoea (OR 4.9 (95% CI 2.0 to 13) and OR 2.8 (95% CI 1.6 to 5.2), respectively) than other pathogens post-COVID-19. RSV consistently peaked during June/July and September/October, preceding RSV prophylaxis administration in October.

The overall burden on the healthcare system due to RTI visits and admissions was high. Higher disease severity was associated with RSV and rhino/enterovirus infections; therefore, universal RSV prophylaxis should be considered, and timing should be optimised based on seasonality.

Venous thromboembolism (VTE) is a common complication of traumatic brain injury (TBI) and is associated with increased morbidity and mortality. Low molecular weight heparin (LMWH) is recommended for prophylaxis against VTE after trauma but may increase the risk of progression of intracranial bleeding. Limited evidence exists to guide clinicians regarding the optimal timing of VTE prophylaxis in patients with acute TBI. This randomised controlled trial (RCT) will directly compare the safety and effectiveness of early versus delayed initiation of LMWH in patients with moderate to severe TBI.

The study design is a Bayesian adaptive RCT comparing early (within three calendar days of injury) versus delayed (after study Day 7) VTE prophylaxis with the LMWH, dalteparin. All patients receive sequential compression devices until study Day 8. The co-primary effectiveness outcome is the development of clinically important VTE at study Day 8. The co-primary safety outcome is the development of clinically important intracranial bleeding at study Day 8. Secondary outcomes are mortality and functional outcomes (Glasgow Outcome Scale Extended and EQ-5D) measured at study Days 30 and 180; clinically diagnosed VTE to Day 30 and progression of intracranial bleeding to Day 8.

This study has been approved through Clinical Trials Ontario’s streamlined ethics review process (board of record, Sunnybrook Health Sciences Centre) and all participating centres. It is conducted in accordance with the Declaration of Helsinki, Good Clinical Practice guidelines and Health Canada regulatory requirements. We anticipate that the trial will achieve wide dissemination through publication in a peer-reviewed medical journal and presentation at international conferences targeting the fields of critical care, trauma and neurosurgery. The results of this trial will help guide clinicians aiming to balance the risks and benefits of early anticoagulant prophylaxis after TBI and will inform guideline development.

NCT03559114.

To test the feasibility of identifying and quantifying resource use for a Hospital-at-Home (HaH) model in Danish municipalities, we used a micro-costing approach. Additionally, we aimed to generate a transparent activity and time dataset. This dataset will support subsequent tariff development with time-driven activity-based costing and feed into the economic evaluation of an ongoing randomised controlled trial (RCT).

Prospective pilot feasibility study.

Three municipalities in the Central Denmark Region in collaboration with emergency department specialists and general practitioners.

56 elderly acute patients treated in HaH during the pilot phase.

Feasibility of micro-costing data collection (completeness, consistency and acceptability to staff) and descriptive resource-use quantities by activity and provider group. No price assignment or cost estimates are reported.

Patients received a mean of 3.8 HaH treatment days with 7.8 acute team visits and 3.9 municipal-staff visits per treatment course. The acute team spent a mean of 742 min per patient across treatment activities, communication, documentation and transport, while municipal care staff recorded a mean of 213 min. Intravenous medicine administration and vital sign assessments were the most frequent activities. Data completeness and consistency improved over time through co-design and feedback.

Detailed resource-use measurement using provider logs was feasible in a municipal HaH model and produced an activity and time dataset suitable for tariff development. Findings are context-specific and not generalisable due to the small sample. The micro-costing log refined through the pilot will be applied in an RCT, where time and activity data will be used to construct a tariff using time-driven activity-based costing.

Many researchers conduct a process evaluation alongside an effectiveness trial of a public health intervention to better understand mechanisms behind observed effects. Yet, there is no standardised, scientifically accepted guideline for reporting such process evaluations, which impedes interpretation and comparison of study results. The aim of this project was to develop a consensus-based and expert-based guideline for reporting process evaluations of public health interventions conducted alongside an effectiveness trial.

We conducted an e-Delphi study with a large panel of international experts.

Based on purposive sampling, we invited 137 international experts that had been involved in the design of process evaluations, researchers who published high-profile process evaluations or frameworks, editors of journals that publish process evaluations, and authors of other reporting guidelines.

Based on a literature search, a first draft of the reporting guideline included 32 items, which was proposed to panel members during the first round. Of the invited 137 invited international experts, 73 (53%) participated in at least one round of the e-Delphi study. Participants rated the inclusion and comprehensibility of the proposed items on a 5-point Likert scale and provided comments and suggestions for relevance and definitions of the items. Adjustments to the items and descriptions were proposed to the e-Delphi panel until consensus of ≥67% for each individual item was reached. In total, 64 (88% of 73) completed round 2, and 55 (76% of 73) completed round 3. This resulted in 19 items that are included in the consensus-based process evaluation reporting guideline for public health intervention studies (CONPHES) guideline. The items cover a detailed description of the intervention that is evaluated, the implementation strategies applied, and underlying causal pathways, and the role of the delivery and support team. The guideline also requires describing the evaluation framework and how evaluation outcomes were assessed. Lastly, the guideline includes items on providing a detailed description of applied analyses (both quantitative and qualitative) and measures for assuring quality. The guideline is accompanied by an Explanation and Elaboration document, with a more detailed explanation of each item.

We expect that the CONPHES reporting guideline for process evaluations of public health interventions can improve the reporting of process evaluations of interventions aimed at promoting public health. This can potentially facilitate more effective translation of public health research into practice and contribute to improving both individual and population health outcomes.

The global population of older adults has grown at an unprecedented rate, and projections indicate that the number of older adults will continue to increase considerably in the coming decades. The clinical complexity of older adults living in retirement homes, also known as assisted living settings, is also increasing, and the regulations to ensure quality and safety standards in retirement homes are highly variable. The purpose of this scoping review is to map and summarise the methods used to monitor and measure the safety of older adults living in retirement homes, providing an overview of existing approaches and areas requiring further investigation.

This scoping review will follow the five stages of the Arksey and O’Malley scoping review process. We will report this review using the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews. A comprehensive search of four electronic databases (MEDLINE (Ovid), EMBASE (Ovid), CINAHL (EBSCO) and Web of Science Core Collection) will be performed, and reference lists of included articles will be searched. We will conduct a two-step screening process, data extraction and analysis of the included studies. We will include all primary study designs that report on safety measurement and monitoring of any type of harms. Relevant grey literature will also be identified. We will exclude studies that only report results from facilities providing 24-hour skilled nursing care or specialised care services, and those not published in English or French. This protocol is registered on the Open Science Framework (osf.io/8rheq).

No ethical approval is needed for the review, and we plan to present the results at research conferences and in a peer-reviewed article. Our findings may inform future research studies that seek to support and improve safety practices in retirement homes.

Falls are a critical problem for older people, including those from ethnically diverse communities, who are under-represented in research. The aim of this pilot trial is to evaluate (1) the implementability of a co-designed intervention developed to support the sustained uptake of tailored exercise to reduce falls (MOVE Together: Reduce Falls) and (2) the feasibility of conducting a randomised controlled trial (RCT) in older people from Italian, Arabic, Cantonese or Mandarin-speaking communities.

Investigator and assessor-blinded pilot two-arm parallel RCT. 60 older people at risk of falls from Italian, Arabic, Cantonese or Mandarin speaking communities will be recruited, with the option to enrol on their own or with another participant (dyad). Participants or dyads will be randomly assigned to the experimental or control arm. The experimental arm will receive MOVE Together: Reduce Falls, which provides up to 12 sessions with a physiotherapist over 12 months and supports participants to engage in individualised exercises. Both arms will receive educational resources in the participant’s preferred language. The primary outcome is implementability of the co-designed intervention, MOVE Together: Reduce Falls; operationalised as fidelity (>70% of intended sessions delivered), feasibility (> 95% of sessions delivered with no serious adverse events related or likely related to the intervention) and acceptability (>50% acceptability score). The secondary outcome is feasibility of the RCT protocol, which will be evaluated quantitatively (eg, recruitment and retention rates, completion of clinical outcome data including prospective collection of falls data for 12 months via falls calendars) and qualitatively (eg, barriers and enablers to data collection).

Ethical approval has been granted for this study (HREC/106010/MH-2024). Study findings will be published in peer-reviewed journals and presented at relevant conferences and community forums.

ACTRN12624000658516.

Being exposed to adverse psychosocial working conditions contributes to poor mental health in young workers. This study explores whether psychosocial work adversities are a necessary condition for work-related emotional exhaustion in young workers.

Data from the ‘Netherlands Working Condition Survey 2021’ was used. By applying a novel method called Necessary Condition Analysis, we tested two psychosocial work adversities as necessary conditions for high work-related emotional exhaustion in young workers: (1) a composite score of high job demands and low job resources and (2) a composite score of high job demands. Additionally, we tested whether the threshold for job demands as a necessary condition for high work-related emotional exhaustion differed for young workers with low versus high resources.

Secondary data analysis on a national working population-based survey.

The sample included 5791 young workers in the Netherlands (aged

Work-related emotional exhaustion.

A high level of the composite on job demands and job resources is necessary for a high level of work-related emotional exhaustion in young workers (effect size=0.11, p

Both psychosocial work adversities were necessary conditions for high work-related emotional exhaustion in young workers. The necessity threshold for job demands was higher for young workers with high job resources, compared with the group with low resources. This indicates that removing psychosocial work adversities and ensuring the presence of job resources might contribute to the prevention of high work-related emotional exhaustion in young workers.

Health advocacy (HA) is acknowledged as a core competence in medical education. However, varying and sometimes conflicting conceptualisations of HA exist, making it challenging to integrate the competence consistently. While this diversity highlights the need for a deeper understanding of HA conceptualisations, a comprehensive analysis across the continuum of medical education is absent in the literature. This protocol has been developed to clarify the conceptual dimensions of the HA competence in literature as applied to medical education.

The review will be conducted in line with the JBI (formerly Joanna Briggs Institute) methodology for scoping reviews. A comprehensive literature search was developed and already carried out in eight academic databases and Google Scholar, without restrictions on publication date, geography or language. Articles that describe the HA role among students and physicians who receive or provide medical education will be eligible for inclusion. Two independent reviewers will independently complete title and abstract screening prior to full-text review of selected articles and data extraction on the final set. A descriptive-analytical approach will be applied for summarising the data.

This scoping review does not involve human participants, as all evidence is sourced from publicly available databases. Therefore, ethical approval is not required for this study. The findings from this scoping review will be disseminated through submission to a high-quality peer-reviewed journal and presented at academic conferences. By clarifying the conceptualisations of HA, this review aims to contribute to a shared narrative that will strengthen the foundation for integrating the HA role into medical education.

A preliminary version of this protocol was registered on the Open Science Framework on 9 December 2024, and can be accessed at the following link: https://osf.io/ed2br. We have also registered our scoping review protocol as a preprint at medRxiv: https://doi.org/10.1101/2024.12.09.24318699.