Artificial intelligence (AI) has the potential to revolutionise healthcare delivery, particularly in the domain of emergency medicine. With the rise of telemedicine and virtual care, AI-powered tools could assist in triage, diagnosis and treatment recommendations for patients seeking emergency care remotely. This systematic review aims to synthesise the current state of research on AI applications in virtual emergency care, identify key challenges and opportunities and provide recommendations for future research and implementation.

We will conduct a comprehensive search of multiple electronic databases (PubMed, Web of Science, Embase, CINAHL, MEDLINE, The Cochrane Library, Scopus) from each database’s inception to March 2025. The search will include terms related to AI, machine learning, deep learning, virtual care, telemedicine and emergency medicine. We will include original research articles, conference proceedings and preprints that describe the development, validation or implementation of AI models for virtual emergency care. Two reviewers will independently screen titles and abstracts, review full texts, extract data and assess risk of bias using the PROBAST (Prediction model Risk Of Bias ASsessment Tool) tool for prediction model studies, Cochrane Risk-of-Bias tool for randomised trials for randomised trials and Risk Of Bias In Non-randomised Studies of Interventions for non-randomised studies. Data synthesis will involve a narrative review of included studies, summarising key findings, methodological approaches and implications for practice and research. The results will be reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

No ethical approval is required for this systematic review as it will use only published data. The findings will be disseminated through publication in a peer-reviewed journal, presentations at relevant conferences and engagement with clinicians, health system leaders, policymakers and researchers. This review will provide a timely and comprehensive overview of the applications of AI in virtual emergency care to inform evidence-based guidelines, policies and practices for leveraging these technologies to enhance access, quality and efficiency of emergency care delivery.

CRD42025648202.

The Episodic Disability Questionnaire (EDQ) was developed to measure the presence, severity and episodic nature of disability experienced among persons with chronic conditions. Our aim was to assess the sensibility, utility and implementation considerations of the EDQ among older adults with complex health needs.

Cross-sectional measurement study involving quantitative and qualitative methods of data collection.

We recruited community-dwelling older adults (65 years of age or older) living with complex health needs receiving care from a primary healthcare team in Toronto, Canada.

We administered the EDQ, sensibility questionnaire (assessing face and content validity, and ease of usage, with each item scored from 0 to 7 with greater scores indicating greater sensibility) and demographic questionnaire, followed by a semi-structured interview in the home or clinical setting. Using an interview guide, we asked participants about their perspectives on utility, format and implementation of the EDQ in clinical practice. We considered the EDQ sensible if the median score on the sensibility questionnaire was ≥5/7 for ≥80% of items and if none of the items had a median score of ≤3/7. We conducted a team-based directed content analysis of the interview transcripts.

The median age of the 11 participants in this study was 83 years of age. All participants reported living with two or more chronic health conditions, with osteoarthritis (n=5) and diabetes (n=4) most frequently reported. The EDQ met the criterion for sensibility as measured by the sensibility questionnaire. Interview data from participants (n=10) indicated that the EDQ represents the health-related challenges among this sample of older adults with complex health needs, captures the episodic nature of disability and was easy to use. Utility of the EDQ included providing clinicians with a holistic understanding of health challenges older adults face, aiding in intervention planning and measuring changes in disability over time. Six of the participants also expressed uncertainty as to how the EDQ specifically could be used by clinicians in their care. Considerations for implementation included mode of administration (paper or electronic) and the importance of communicating EDQ scores with older adults based on individual preferences.

The EDQ possesses sensibility and utility for use among this sample of older adults living with complex health needs in home or clinical care settings.

Relational continuity of care (RCC) refers to the sustained therapeutic relationship between a patient and a clinician, which fosters trust, enhances communication and facilitates the accumulation of knowledge about the patient. RCC is associated with enhanced patient outcomes, reduced hospital admissions, lower mortality rates, decreased healthcare costs and improved patient experience. Despite these benefits, reorganisations within the NHS and workforce challenges have led to an increased reliance on multidisciplinary and part-time working, resulting in fragmented care and a decline in RCC. Our study aims to explore who needs RCC, under what circumstances, to what extent and why, with the goal of informing optimal implementation strategies.

We will conduct a realist review to develop an evidence-based programme theory explaining the mechanisms underlying RCC, the populations that benefit most, the contextual factors influencing RCC and effective care models. Following Pawson’s five iterative stages, we will: (1) Locate existing theories, (2) Search for relevant evidence, (3) Select appropriate articles, (4) Extract and organise data and (5) Synthesise findings to draw conclusions. A stakeholder advisory group, comprising policymakers, healthcare professionals, public contributors and patients, will be engaged throughout the process. We will adhere to Realist And Meta-narrative Evidence Synthesis: Evolving Standards (RAMESES) for realist reviews to ensure methodological rigor.

Our findings will inform practical, evidence-based recommendations for optimising RCC within general practice. Outputs will include peer-reviewed publications, conference presentations, plain English summaries, social media infographics, a short video and end-of-study events. Collaborations with stakeholders and public involvement will ensure both accessibility and impact. Ethical approval is not required for this review.

To determine the incidence of in-hospital postoperative mortality and validate the Preoperative Score to Predict Postoperative Mortality (POSPOM).

Retrospective case–control study.

A tertiary university hospital in Thailand.

All patients who underwent surgical procedures in 2019 under any anaesthesia technique.

Incidence of in-hospital postoperative mortality and POSPOM score performance (sensitivity, specificity and predictive values).

A total of 39 674 patients underwent surgery in 2019. The in-hospital postoperative mortality rate was 0.76% (95% CI 0.68% to 0.85%). After excluding cases per POSPOM criteria, 270 deceased patients remained. The POSPOM score was validated against these 270 cases and 270 randomly selected survivors, yielding an area under the receiver operating characteristic curve of 0.73 (95% CI 0.69 to 0.77). At a cut-off of 21, the sensitivity was 71.5% (95% CI 65.7% to 76.8%), and the specificity was 61.9% (95% CI 55.8% to 67.7%).

This single-centre study found a low in-hospital postoperative mortality rate. The POSPOM score demonstrated moderate predictive accuracy for postoperative mortality risk and may be useful for preoperative risk stratification.

https://www.thaiclinicaltrials.org/show/TCTR20200330001.

This study aimed to examine the reproductive concerns and their influencing factors among adolescents and young adults with acute leukaemia and to explore the relationship between reproductive concerns and patients’ quality of life.

A cross-sectional study.

The haematology departments of four tertiary-level hospitals in Hunan province, China.

Convenience sampling method was used to recruit 233 adolescents and young adults with acute leukaemia, from June 2024 to December 2024.

The primary outcome was assessed using the Chinese version of the Reproductive Concerns After Cancer and the secondary outcome was measured by the 12-item Short Form Health Survey.

Adolescents and young adults with acute leukaemia had a mean reproductive concerns score of 55.57±7.57, a quality of life physical component summary (PCS) score of 38.54±8.58 and a mental component summary (MCS) score of 39.84±8.78. Univariate analysis showed significant differences in reproductive concerns based on fertility status, place of residence, education level, fertility counselling and family history of acute leukaemia (p

Adolescents and young adults with acute leukaemia exhibited moderately high levels of reproductive concerns, particularly those who had no children, had a low education level, resided in rural areas, had a family history of acute leukaemia or had received fertility counselling. Therefore, we suggest that healthcare providers prioritise addressing reproductive concerns in high-risk patients by offering tailored, high-quality and continuous fertility counselling and psychological support. Strengthening these strategies can help alleviate reproductive concerns and improve both mental health and overall quality of life in this population.

The prevalence of cardiovascular diseases (CVDs) is rapidly increasing across Asia, with the burden particularly high among individuals aged ≥50 years. Elevated low-density lipoprotein cholesterol (LDL-C) level is a well-established causal risk factor for CVDs. Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay (MIND) diet is a cardioprotective diet, which is rich in plant-based foods. Combining it with stress-reducing practices, including forest bathing (FB), which involves immersive exposure to forest environments, has been shown to reduce LDL-C levels and other cardiovascular risk factors by modulating pro-inflammatory responses. However, existing evidence is limited due to small sample sizes and poor study design. Therefore, this study aims to investigate whether the MIND diet combined with FB can reduce CVD risks among Chinese adults in Hong Kong. It also compares the effects of the MIND diet combined with FB on cardiovascular and mental health.

A single-blind, randomised controlled trial involving three groups will be used to assess the impact of the MIND diet combined with FB on LDL-C levels in adults aged 50–75 years with elevated LDL-C levels. Participants (n=273) from local community centres will be randomly assigned to the MIND-plus-FB (who will receive nutrition education, follow the MIND diet for 12 weeks and participate in regular FB sessions), MIND-alone (who will receive nutrition education and follow the MIND diet for 12 weeks) or routine care (who will continue their usual activities and receive a general health talk along with pamphlets on cardiovascular risks) group. The change in LDL-C levels will be measured at weeks 4 and 12 (primary outcome). Additionally, changes in high-density lipoprotein cholesterol level, triglyceride level, glucose level, systolic blood pressure, waist circumference, body mass index, anxiety levels and emotional state will also be assessed at weeks 4 and 12. Statistical analyses will include intent-to-treat, ² test, analysis of variance and generalised estimating equations.

This study has been approved by the Research Ethics Committee of Tung Wah College, Hong Kong (reference number: REC2023164). Research findings will be disseminated through publication in peer-reviewed journals and presentations at academic and primary healthcare conferences.

ClinicalTrials.gov ID: NCT06222632, registered on 25 January 2024. The ClinicalTrials.gov data are available at: https://clinicaltrials.gov/study/NCT06222632?term=NCT06222632&rank=1&a=2&tab=history

To investigate the relationship between demographic characteristics and extracurricular achievements among UK medical students.

National, cross-sectional survey.

All 44 UK medical schools recognised by the General Medical Council.

8,395 medical students.

Binary indicators of extracurricular engagement, including PubMed-indexed authorship, academic presentations, quality improvement projects, leadership roles and academic prizes. Logistic regression models were used to explore associations with demographic and extracurricular achievement predictors.

Logistic regression analysis showed that students from private schools (OR 1.35, CI 1.20 to 1.53, p

Significant disparities in extracurricular achievement exist among UK medical students, principally associated with gender, private schooling and familial links to medicine. Apparent ethnic differences were largely attenuated after adjustment for other variables, indicating socioeconomic factors as stronger predictors of engagement. Given the role of these achievements in postgraduate selection, targeted interventions by medical schools and professional bodies to widen access to funding, mentorship and structured guidance for all students, regardless of perceived advantage, may support equitable opportunity without undermining merit-based standards.

To explore factors influencing UK medical students’ specialty choices and examine variations in these influences across demographic groups and stages of training.

National, cross-sectional online survey.

All 44 UK medical schools recognised by the General Medical Council.

8,395 medical students.

The primary outcome was the specialty preferences of UK medical students. The secondary outcomes were factors behind these preferences and how these factors vary across demographic groups and different stages of training.

General Practice (15.3%), Paediatrics (10.6%) and Anaesthetics (9.9%) were the most preferred specialties among final-year students. Work-life balance (84.1%), compatibility with family life (78.2%), positive training experiences (85.2%) and future specialty outlook (74.9%) were key factors influencing specialty choice. Only 23.1% of students felt confident about securing a specialty training post, with confidence higher among males (OR 1.36, 95% CI 1.21 to 1.52, p

This study highlights disparities in specialty preferences and influencing factors among UK medical students. A focus on improving career guidance, exposure to various specialties and supporting equitable access to training opportunities is essential for fostering a motivated and sustainable medical workforce.

The UK’s medical workforce is under increasing strain, and this is compounded by increasing numbers of resident doctors diverging from specialist training pathways, instead entering non-training roles, reducing clinical hours or leaving the profession or UK workforce entirely. These decisions are shaped by both individual motivations and wider structural conditions, including unsatisfactory working conditions, limited flexibility and a perceived lack of support or autonomy. While pursuing alternative career routes offers personal and professional benefits, they can also delay progression to senior clinical roles, contributing to workforce instability. There remains limited understanding of how best to support retention, particularly given the varied contexts, settings and career trajectories of resident doctors. This realist synthesis will examine how, why and in what contexts resident doctors leave the National Health Service, and what interventions might support their retention.

This realist synthesis will follow Realist And Meta-narrative Evidence Synthesis: Evolving Standards guidance and will be conducted in five iterative steps: (1) identifying existing theories to develop an initial programme theory; (2) undertaking formal and purposive searches to identify relevant UK-based literature; (3) selecting documents based on relevance and rigour; (4) extracting and coding data to support the development of explanatory insights; and (5) synthesising findings using a realist logic of analysis to develop and refine context-mechanism-outcome configurations. An advisory group will guide the review throughout. The final programme theory will inform the development of evidence-based recommendations and design principles to support resident doctor retention.

Ethical approval is not required for this synthesis of existing literature. Findings will be disseminated through academic publications, conference presentations and accessible formats, including infographics, plain English summaries and blog posts. Target audiences include resident doctors, medical educators, workforce planners and policymakers.

PROSPERO, CRD420251004453.

Cardiovascular (CV) disease is the leading cause of morbidity and mortality globally. Low-density lipoprotein cholesterol (LDL-C) is an important modifiable risk factor of major adverse cardiovascular events. Patients without prior myocardial infarction (MI) or stroke but with established risk factors and elevated LDL-C may benefit from intensive lipid-lowering therapy (LLT); however, the size and potential healthcare burden of this population globally are not known. The benefits of evolocumab, a proprotein convertase subtilisin/kexin type 9 inhibitor, in these patients, are currently being studied in the phase 3 Effect of Evolocumab in Patients at High Cardiovascular Risk Without Prior Myocardial Infarction or Stroke (VESALIUS-CV) trial. To characterise the high-risk pre–CV-event (VESALIUS-CV–like) individuals in the real world, an observational study is being conducted across multiple countries.

This retrospective cohort study will use a common protocol and an analytical common data model approach to characterise VESALIUS-CV–like individuals in the real world across different geographical regions and healthcare settings. The study period will be from 2010 to 2022, subject to data availability in study sites. Patients aged 50 years and older at high risk of CV disease but without prior MI or stroke will be included in this study. VESALIUS-CV–like individuals are defined through a combination of the following: (1) one diagnosis of coronary artery disease, cerebrovascular disease, peripheral artery disease or diabetes with microvascular complications or chronic insulin use; (2) an elevated LDL-C measurement and (3) other high-risk factors. The objectives of this study are to estimate the prevalence of VESALIUS-CV–like individuals, describe their characteristics and care pathways and estimate their incidence rates of CV events and healthcare costs. The prevalence of VESALIUS-CV–like individuals will be expressed as annual prevalence; patient characteristics at index date will be presented using summary statistics; care pathways will be summarised as LLT prescription across time; and the incidence of defined CV events will be expressed as events per person-years as well as at certain time periods. Healthcare costs will be presented as CV-related costs in different time periods.

Approvals of the study protocol were obtained from relevant local ethics and regulatory frameworks for each participating database. The results of the study will be submitted to peer-reviewed scientific publications and presented at scientific conferences.

To identify the patterns of tuberculosis (TB) notification rates and examine their relationship with social and economic determinants in Nepal between 2020 and 2023.

Cross-sectional study.

Nepal.

All TB cases across all ages.

Prevalence of TB cases.

This cross-sectional spatial analysis used the data set of the National Tuberculosis Control Centre, Nepal, covering the Fiscal Year (FY) 2020–2021 to 2022–2023. Moran’s I and Local Indicators of Spatial Association were employed to detect the spatial autocorrelation between the prevalence of TB and associated social and demographic factors.

The overall prevalence rate for TB in FY 2020–2021 was 98.08 per 100 000 population. This increased to 129.82 per 100 000 population in FY 2021–2022, followed by a slight decrease to 128.39 per 100 000 population in FY 2022–2023. The highest TB prevalence was observed in Kathmandu, with 146 cases per 100 000 population in 2020–2021, and in Dang district, the rate decreased from 215–191 per 100 000 population. We investigated the spatial patterns of TB prevalence and highlighted the geographic areas in each district in Nepal from 2021 to 2023 with Moran’s I of 0.558, 0.614 and 0.596, respectively. The consistent identification of High-High clusters in specific districts like Banke, Kapilbastu and Parsa across all 3 years periods highlighted persistent high-risk areas for TB transmission in Nepal.

This study emphasised the strong spatial associations and the complex, diverse aspects of TB transmission shaped by demographic and socioeconomic factors. Our results highlighted the need for tailored public health approaches that account for specific social determinants to address TB effectively.

Fatigue is a common and debilitating symptom that is associated with an increased risk of mortality, dialysis initiation and hospitalisation among patients with chronic kidney disease (CKD). The aim of this study was to identify the characteristics, content and psychometric properties of patient-reported outcome measures (PROMs) used to measure fatigue in patients with CKD not requiring kidney replacement therapy (KRT).

Systematic review. The characteristics, dimensions of fatigue and psychometric properties of these measures were extracted and analysed.

We searched MEDLINE, Embase, PsycINFO and CINAHL from database inception to February 2023.

All studies that reported fatigue in patients with CKD stages 1–5 not receiving KRT.

We identified 97 studies (20 (21%) randomised trials, 2 (2%) non-randomised trials and 75 (77%) observational studies). 27 different measures were used to assess fatigue, of which three were author-developed measures. The 36-Item Short Form Health Survey (SF-36) and Kidney Disease Quality of Life – Short Form (KDQOL-SF) were the most frequently used measures (41 (42%) and 24 (25%) studies, respectively). Six (22%) measures were specific to fatigue (Chalder Fatigue Questionnaire, Functional Assessment of Chronic Illness Therapy – Fatigue Scale, Functional Assessment of Cancer Therapy-Fatigue, Fatigue Severity Scale, and author developed Chen & Ku 1998, and Hao et al 2021) while 21 (78%) included a fatigue subscale or item within a broader construct for example, quality of life. Various content domains assessed included tiredness, ability to think clearly, level of energy, muscle weakness, ability to concentrate, verbal abilities, motivation, memory, negative emotions and life participation. Only two measures (Chronic Kidney Disease Symptom Index – Sri Lanka, Kidney Symptom Questionnaire) were developed specifically for CKD, but they were not specific to fatigue. Six measures (Chronic Kidney Disease Symptom Index – Sri Lanka, Functional Assessment of Cancer Therapy – Anemia, Revised Illness Perception Questionnaire, Kidney Symptom Questionnaire, Short Form 6 Dimension and 36-Item Short Form Health Survey) had been validated in patients with CKD not requiring KRT.

PROMs used to assess fatigue in patients with CKD vary in content and few were specific to fatigue in patients with CKD not requiring KRT. Data to support the psychometric robustness of PROMs for fatigue in CKD were sparse. A validated and content-relevant measure to assess fatigue in patients with CKD is needed.

Colorectal cancer (CRC) is the third most common cancer and the second leading cause of cancer mortality worldwide. Despite the organised CRC screening programme, the uptake rate of the population-based CRC screening was still low. Thus, we will conduct a randomised controlled trial in a community setting to evaluate the effectiveness of a theory-based chatbot in promoting CRC screening uptake.

A total of 500 eligible participants will be randomly assigned to a WhatsApp Messenger-initiated chatbot outreach group or a standard text reminder group at a ratio of 1:1. The intervention group will deliver Chinese culturally tailored education texts and videos developed based on the Health Belief Model and the Trans-Theoretical Model. The control group will deliver a standard text reminder of information about the Hong Kong organised CRC screening programme. In addition to the baseline assessment and postintervention assessment, all subjects will be followed up for 3 months and 6 months, respectively. The primary outcome will be the CRC screening uptake rate at the 3 month and 6 month follow-up. The secondary outcomes will be the intention to undergo CRC screening uptake, time interval to participate in and complete screening after recruitment, and reasons for not participating in screening at the 3 month and 6 month follow-up. Quantitative data will be analysed using Student’s t-test, Pearson’s ² test or Fisher’s exact test. Qualitative data will be analysed by thematic analysis.

Ethical approval of this trial was granted by the Joint Chinese University of Hong Kong-New Territories East Cluster Clinical Research Ethics Committee (2022.614). Written informed consent will be obtained from study participants before enrolment. The findings will be disseminated through peer-reviewed journals.

The study was registered on clinicaltrials.gov (NCT06192862).